/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-2_1-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-13 18:55:34,657 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-13 18:55:34,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-13 18:55:34,697 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-13 18:55:34,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-13 18:55:34,765 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-13 18:55:34,766 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-13 18:55:34,770 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-07-13 18:55:34,806 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-13 18:55:34,806 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-13 18:55:34,807 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-13 18:55:34,807 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-13 18:55:34,809 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-13 18:55:34,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-13 18:55:34,810 INFO L138 SettingsManager]: * Use SBE=true [2021-07-13 18:55:34,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-13 18:55:34,810 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-13 18:55:34,810 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-13 18:55:34,811 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-13 18:55:34,811 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-13 18:55:34,811 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-13 18:55:34,812 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-13 18:55:34,812 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-13 18:55:34,812 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-13 18:55:34,812 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-13 18:55:34,812 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-13 18:55:34,812 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-13 18:55:34,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-13 18:55:34,813 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-13 18:55:34,813 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-13 18:55:34,813 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-13 18:55:34,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-13 18:55:34,813 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-13 18:55:34,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-13 18:55:34,814 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-13 18:55:34,814 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-13 18:55:34,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-13 18:55:34,814 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-13 18:55:34,814 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-13 18:55:34,815 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-13 18:55:35,182 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-13 18:55:35,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-13 18:55:35,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-13 18:55:35,212 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-13 18:55:35,214 INFO L275 PluginConnector]: CDTParser initialized [2021-07-13 18:55:35,215 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2021-07-13 18:55:35,281 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75ba545e0/757dbbf7f8274c10b0377dee9498f9fc/FLAGea7d0a1b6 [2021-07-13 18:55:35,867 INFO L306 CDTParser]: Found 1 translation units. [2021-07-13 18:55:35,867 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2021-07-13 18:55:35,888 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75ba545e0/757dbbf7f8274c10b0377dee9498f9fc/FLAGea7d0a1b6 [2021-07-13 18:55:36,261 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75ba545e0/757dbbf7f8274c10b0377dee9498f9fc [2021-07-13 18:55:36,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-13 18:55:36,267 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-13 18:55:36,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-13 18:55:36,271 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-13 18:55:36,275 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-13 18:55:36,276 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:55:36" (1/1) ... [2021-07-13 18:55:36,277 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64220484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:36, skipping insertion in model container [2021-07-13 18:55:36,277 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:55:36" (1/1) ... [2021-07-13 18:55:36,283 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-13 18:55:36,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-13 18:55:37,082 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i[76077,76090] [2021-07-13 18:55:37,105 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-13 18:55:37,112 INFO L203 MainTranslator]: Completed pre-run [2021-07-13 18:55:37,142 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i[76077,76090] [2021-07-13 18:55:37,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-13 18:55:37,236 INFO L208 MainTranslator]: Completed translation [2021-07-13 18:55:37,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:37 WrapperNode [2021-07-13 18:55:37,236 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-13 18:55:37,238 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-13 18:55:37,238 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-13 18:55:37,238 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-13 18:55:37,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:37" (1/1) ... [2021-07-13 18:55:37,275 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:37" (1/1) ... [2021-07-13 18:55:37,300 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-13 18:55:37,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-13 18:55:37,302 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-13 18:55:37,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-13 18:55:37,308 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:37" (1/1) ... [2021-07-13 18:55:37,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:37" (1/1) ... [2021-07-13 18:55:37,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:37" (1/1) ... [2021-07-13 18:55:37,314 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:37" (1/1) ... [2021-07-13 18:55:37,334 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:37" (1/1) ... [2021-07-13 18:55:37,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:37" (1/1) ... [2021-07-13 18:55:37,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:37" (1/1) ... [2021-07-13 18:55:37,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-13 18:55:37,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-13 18:55:37,349 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-13 18:55:37,349 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-13 18:55:37,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-13 18:55:37,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-13 18:55:37,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-07-13 18:55:37,419 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-07-13 18:55:37,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-07-13 18:55:37,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-13 18:55:37,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-13 18:55:37,422 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-07-13 18:55:37,423 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-07-13 18:55:37,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-13 18:55:37,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-13 18:55:37,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-13 18:55:37,425 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-13 18:55:38,104 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-13 18:55:38,104 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-07-13 18:55:38,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:55:38 BoogieIcfgContainer [2021-07-13 18:55:38,106 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-13 18:55:38,108 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-13 18:55:38,108 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-13 18:55:38,111 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-13 18:55:38,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 06:55:36" (1/3) ... [2021-07-13 18:55:38,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13064c9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:55:38, skipping insertion in model container [2021-07-13 18:55:38,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:37" (2/3) ... [2021-07-13 18:55:38,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13064c9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:55:38, skipping insertion in model container [2021-07-13 18:55:38,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:55:38" (3/3) ... [2021-07-13 18:55:38,113 INFO L111 eAbstractionObserver]: Analyzing ICFG race-2_1-container_of.i [2021-07-13 18:55:38,118 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-13 18:55:38,119 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-13 18:55:38,119 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-07-13 18:55:38,120 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-13 18:55:38,176 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,177 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,177 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,177 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,177 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,178 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,178 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,178 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,178 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,178 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,178 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,178 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,179 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,179 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,179 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,179 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,179 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,179 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,179 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,180 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,180 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,180 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,180 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,180 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,180 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,189 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,189 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,189 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,189 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,189 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,190 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,190 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,190 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,190 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,190 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,190 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,190 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,191 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,191 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,191 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,191 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,191 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,191 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,192 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,192 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,192 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,192 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,192 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,192 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,193 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,193 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,193 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,193 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,193 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,193 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,193 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,194 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,194 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,194 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,194 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,194 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,194 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,194 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,195 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,195 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,195 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,195 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,195 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,195 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,195 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,196 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,196 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,196 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,196 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,196 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,196 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,197 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,197 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,197 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,197 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,197 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,197 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,197 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,198 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,198 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,198 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,198 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,198 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,198 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,198 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,199 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,199 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,199 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,199 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,199 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,199 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,199 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,199 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,200 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,200 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,200 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,200 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,200 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,200 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,200 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,201 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,201 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,201 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,201 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,201 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,201 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,201 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,202 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,202 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,202 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,202 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,202 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,202 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,203 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,203 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,203 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,203 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,203 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,203 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,204 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,204 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,204 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,204 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,204 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,205 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,206 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,206 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,207 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,207 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,207 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,207 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,207 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,207 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,207 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,208 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,210 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,210 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,211 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,211 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,212 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,212 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,212 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,212 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,212 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,212 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,212 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,213 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,218 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,218 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,219 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,219 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,219 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,220 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,220 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,220 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,220 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,220 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,221 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,221 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:38,231 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-07-13 18:55:38,253 INFO L255 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-07-13 18:55:38,269 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-13 18:55:38,269 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-13 18:55:38,269 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-13 18:55:38,269 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-13 18:55:38,269 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-13 18:55:38,270 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-13 18:55:38,270 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-13 18:55:38,270 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-13 18:55:38,300 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 167 places, 171 transitions, 364 flow [2021-07-13 18:55:38,544 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9349 states, 9339 states have (on average 2.8488060820216297) internal successors, (26605), 9348 states have internal predecessors, (26605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:38,590 INFO L276 IsEmpty]: Start isEmpty. Operand has 9349 states, 9339 states have (on average 2.8488060820216297) internal successors, (26605), 9348 states have internal predecessors, (26605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:38,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-07-13 18:55:38,597 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:38,597 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:38,598 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:38,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:38,603 INFO L82 PathProgramCache]: Analyzing trace with hash 4312800, now seen corresponding path program 1 times [2021-07-13 18:55:38,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:38,610 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44745384] [2021-07-13 18:55:38,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:38,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:39,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:39,018 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:39,018 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44745384] [2021-07-13 18:55:39,019 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44745384] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:39,020 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:39,020 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-13 18:55:39,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840915557] [2021-07-13 18:55:39,024 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-13 18:55:39,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:39,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-13 18:55:39,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-13 18:55:39,069 INFO L87 Difference]: Start difference. First operand has 9349 states, 9339 states have (on average 2.8488060820216297) internal successors, (26605), 9348 states have internal predecessors, (26605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:39,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:39,409 INFO L93 Difference]: Finished difference Result 8893 states and 24854 transitions. [2021-07-13 18:55:39,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 18:55:39,411 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-07-13 18:55:39,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:39,505 INFO L225 Difference]: With dead ends: 8893 [2021-07-13 18:55:39,505 INFO L226 Difference]: Without dead ends: 7312 [2021-07-13 18:55:39,506 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 72.4ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-07-13 18:55:39,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7312 states. [2021-07-13 18:55:39,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7312 to 7311. [2021-07-13 18:55:39,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7311 states, 7304 states have (on average 2.7836801752464404) internal successors, (20332), 7310 states have internal predecessors, (20332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:39,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7311 states to 7311 states and 20332 transitions. [2021-07-13 18:55:39,868 INFO L78 Accepts]: Start accepts. Automaton has 7311 states and 20332 transitions. Word has length 36 [2021-07-13 18:55:39,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:39,869 INFO L482 AbstractCegarLoop]: Abstraction has 7311 states and 20332 transitions. [2021-07-13 18:55:39,869 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:39,869 INFO L276 IsEmpty]: Start isEmpty. Operand 7311 states and 20332 transitions. [2021-07-13 18:55:39,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-07-13 18:55:39,870 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:39,870 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:39,870 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-13 18:55:39,871 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:39,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:39,871 INFO L82 PathProgramCache]: Analyzing trace with hash -334882016, now seen corresponding path program 1 times [2021-07-13 18:55:39,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:39,872 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50026520] [2021-07-13 18:55:39,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:39,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:39,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:39,994 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:39,995 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50026520] [2021-07-13 18:55:39,995 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50026520] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:39,996 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:39,999 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-13 18:55:39,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727071133] [2021-07-13 18:55:40,000 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-13 18:55:40,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:40,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-13 18:55:40,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-13 18:55:40,001 INFO L87 Difference]: Start difference. First operand 7311 states and 20332 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:40,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:40,232 INFO L93 Difference]: Finished difference Result 7313 states and 20334 transitions. [2021-07-13 18:55:40,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-13 18:55:40,233 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-07-13 18:55:40,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:40,276 INFO L225 Difference]: With dead ends: 7313 [2021-07-13 18:55:40,276 INFO L226 Difference]: Without dead ends: 7313 [2021-07-13 18:55:40,277 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 77.1ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-07-13 18:55:40,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7313 states. [2021-07-13 18:55:40,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7313 to 7309. [2021-07-13 18:55:40,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7303 states have (on average 2.7837874845953716) internal successors, (20330), 7308 states have internal predecessors, (20330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:40,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 20330 transitions. [2021-07-13 18:55:40,590 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 20330 transitions. Word has length 42 [2021-07-13 18:55:40,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:40,590 INFO L482 AbstractCegarLoop]: Abstraction has 7309 states and 20330 transitions. [2021-07-13 18:55:40,591 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:40,591 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 20330 transitions. [2021-07-13 18:55:40,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-07-13 18:55:40,593 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:40,593 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:40,593 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-13 18:55:40,594 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:40,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:40,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1888111070, now seen corresponding path program 1 times [2021-07-13 18:55:40,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:40,595 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578519950] [2021-07-13 18:55:40,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:40,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:40,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:40,757 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:40,758 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578519950] [2021-07-13 18:55:40,758 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578519950] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:40,758 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:40,759 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-13 18:55:40,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324430000] [2021-07-13 18:55:40,760 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-13 18:55:40,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:40,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-13 18:55:40,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-13 18:55:40,761 INFO L87 Difference]: Start difference. First operand 7309 states and 20330 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:41,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:41,171 INFO L93 Difference]: Finished difference Result 10560 states and 29296 transitions. [2021-07-13 18:55:41,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-13 18:55:41,171 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-07-13 18:55:41,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:41,237 INFO L225 Difference]: With dead ends: 10560 [2021-07-13 18:55:41,238 INFO L226 Difference]: Without dead ends: 10560 [2021-07-13 18:55:41,238 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 104.0ms TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-07-13 18:55:41,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10560 states. [2021-07-13 18:55:41,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10560 to 8145. [2021-07-13 18:55:41,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8145 states, 8140 states have (on average 2.784029484029484) internal successors, (22662), 8144 states have internal predecessors, (22662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:41,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8145 states to 8145 states and 22662 transitions. [2021-07-13 18:55:41,690 INFO L78 Accepts]: Start accepts. Automaton has 8145 states and 22662 transitions. Word has length 60 [2021-07-13 18:55:41,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:41,692 INFO L482 AbstractCegarLoop]: Abstraction has 8145 states and 22662 transitions. [2021-07-13 18:55:41,692 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:41,692 INFO L276 IsEmpty]: Start isEmpty. Operand 8145 states and 22662 transitions. [2021-07-13 18:55:41,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-07-13 18:55:41,699 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:41,700 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:41,700 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-13 18:55:41,700 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:41,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:41,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1332255701, now seen corresponding path program 1 times [2021-07-13 18:55:41,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:41,701 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102361252] [2021-07-13 18:55:41,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:41,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:41,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:41,846 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:41,846 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102361252] [2021-07-13 18:55:41,847 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102361252] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:41,847 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:41,847 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-13 18:55:41,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093081310] [2021-07-13 18:55:41,848 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-13 18:55:41,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:41,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-13 18:55:41,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-13 18:55:41,853 INFO L87 Difference]: Start difference. First operand 8145 states and 22662 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:42,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:42,268 INFO L93 Difference]: Finished difference Result 11396 states and 31467 transitions. [2021-07-13 18:55:42,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-13 18:55:42,269 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-07-13 18:55:42,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:42,305 INFO L225 Difference]: With dead ends: 11396 [2021-07-13 18:55:42,306 INFO L226 Difference]: Without dead ends: 9607 [2021-07-13 18:55:42,306 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 77.3ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-07-13 18:55:42,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9607 states. [2021-07-13 18:55:42,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9607 to 9285. [2021-07-13 18:55:42,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9285 states, 9281 states have (on average 2.7852602090291994) internal successors, (25850), 9284 states have internal predecessors, (25850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:42,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9285 states to 9285 states and 25850 transitions. [2021-07-13 18:55:42,662 INFO L78 Accepts]: Start accepts. Automaton has 9285 states and 25850 transitions. Word has length 66 [2021-07-13 18:55:42,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:42,663 INFO L482 AbstractCegarLoop]: Abstraction has 9285 states and 25850 transitions. [2021-07-13 18:55:42,663 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:42,664 INFO L276 IsEmpty]: Start isEmpty. Operand 9285 states and 25850 transitions. [2021-07-13 18:55:42,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-13 18:55:42,674 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:42,674 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:42,675 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-13 18:55:42,675 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:42,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:42,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1838606577, now seen corresponding path program 1 times [2021-07-13 18:55:42,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:42,676 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056790037] [2021-07-13 18:55:42,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:42,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:42,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:42,795 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:42,795 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056790037] [2021-07-13 18:55:42,795 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056790037] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:42,795 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:42,796 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-13 18:55:42,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504404030] [2021-07-13 18:55:42,798 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-13 18:55:42,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:42,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-13 18:55:42,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-13 18:55:42,801 INFO L87 Difference]: Start difference. First operand 9285 states and 25850 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:42,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:42,857 INFO L93 Difference]: Finished difference Result 3460 states and 9340 transitions. [2021-07-13 18:55:42,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-13 18:55:42,858 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-07-13 18:55:42,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:42,869 INFO L225 Difference]: With dead ends: 3460 [2021-07-13 18:55:42,869 INFO L226 Difference]: Without dead ends: 3460 [2021-07-13 18:55:42,870 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 29.0ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-07-13 18:55:42,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3460 states. [2021-07-13 18:55:43,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3460 to 3460. [2021-07-13 18:55:43,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3460 states, 3458 states have (on average 2.700983227299017) internal successors, (9340), 3459 states have internal predecessors, (9340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:43,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3460 states to 3460 states and 9340 transitions. [2021-07-13 18:55:43,023 INFO L78 Accepts]: Start accepts. Automaton has 3460 states and 9340 transitions. Word has length 80 [2021-07-13 18:55:43,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:43,023 INFO L482 AbstractCegarLoop]: Abstraction has 3460 states and 9340 transitions. [2021-07-13 18:55:43,023 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:43,023 INFO L276 IsEmpty]: Start isEmpty. Operand 3460 states and 9340 transitions. [2021-07-13 18:55:43,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:55:43,035 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:43,035 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:43,035 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-13 18:55:43,036 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:43,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:43,036 INFO L82 PathProgramCache]: Analyzing trace with hash 762776300, now seen corresponding path program 1 times [2021-07-13 18:55:43,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:43,037 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226219262] [2021-07-13 18:55:43,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:43,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:43,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:43,838 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:43,838 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226219262] [2021-07-13 18:55:43,839 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226219262] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:43,839 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:43,839 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:55:43,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317772230] [2021-07-13 18:55:43,840 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:55:43,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:43,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:55:43,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:55:43,841 INFO L87 Difference]: Start difference. First operand 3460 states and 9340 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:44,368 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-07-13 18:55:44,747 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2021-07-13 18:55:44,939 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-13 18:55:45,148 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 18:55:45,430 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:55:45,700 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:55:45,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:45,897 INFO L93 Difference]: Finished difference Result 4246 states and 11446 transitions. [2021-07-13 18:55:45,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:55:45,897 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:55:45,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:45,911 INFO L225 Difference]: With dead ends: 4246 [2021-07-13 18:55:45,911 INFO L226 Difference]: Without dead ends: 4246 [2021-07-13 18:55:45,912 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1891.3ms TimeCoverageRelationStatistics Valid=292, Invalid=700, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:55:45,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4246 states. [2021-07-13 18:55:46,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4246 to 3964. [2021-07-13 18:55:46,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3964 states, 3962 states have (on average 2.708732963149924) internal successors, (10732), 3963 states have internal predecessors, (10732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:46,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3964 states to 3964 states and 10732 transitions. [2021-07-13 18:55:46,035 INFO L78 Accepts]: Start accepts. Automaton has 3964 states and 10732 transitions. Word has length 114 [2021-07-13 18:55:46,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:46,037 INFO L482 AbstractCegarLoop]: Abstraction has 3964 states and 10732 transitions. [2021-07-13 18:55:46,037 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:46,037 INFO L276 IsEmpty]: Start isEmpty. Operand 3964 states and 10732 transitions. [2021-07-13 18:55:46,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:55:46,053 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:46,053 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:46,053 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-13 18:55:46,053 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:46,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:46,054 INFO L82 PathProgramCache]: Analyzing trace with hash -977159444, now seen corresponding path program 2 times [2021-07-13 18:55:46,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:46,055 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376547216] [2021-07-13 18:55:46,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:46,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:46,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:46,766 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:46,766 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376547216] [2021-07-13 18:55:46,766 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376547216] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:46,766 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:46,766 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-13 18:55:46,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628209764] [2021-07-13 18:55:46,767 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-13 18:55:46,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:46,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-13 18:55:46,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2021-07-13 18:55:46,768 INFO L87 Difference]: Start difference. First operand 3964 states and 10732 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:47,733 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2021-07-13 18:55:48,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:48,218 INFO L93 Difference]: Finished difference Result 4833 states and 12790 transitions. [2021-07-13 18:55:48,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 18:55:48,219 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:55:48,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:48,228 INFO L225 Difference]: With dead ends: 4833 [2021-07-13 18:55:48,228 INFO L226 Difference]: Without dead ends: 4833 [2021-07-13 18:55:48,229 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 1215.3ms TimeCoverageRelationStatistics Valid=329, Invalid=793, Unknown=0, NotChecked=0, Total=1122 [2021-07-13 18:55:48,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4833 states. [2021-07-13 18:55:48,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4833 to 4524. [2021-07-13 18:55:48,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4524 states, 4522 states have (on average 2.680451127819549) internal successors, (12121), 4523 states have internal predecessors, (12121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:48,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4524 states to 4524 states and 12121 transitions. [2021-07-13 18:55:48,335 INFO L78 Accepts]: Start accepts. Automaton has 4524 states and 12121 transitions. Word has length 114 [2021-07-13 18:55:48,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:48,336 INFO L482 AbstractCegarLoop]: Abstraction has 4524 states and 12121 transitions. [2021-07-13 18:55:48,336 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:48,336 INFO L276 IsEmpty]: Start isEmpty. Operand 4524 states and 12121 transitions. [2021-07-13 18:55:48,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:55:48,347 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:48,347 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:48,347 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-13 18:55:48,348 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:48,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:48,348 INFO L82 PathProgramCache]: Analyzing trace with hash -2033955812, now seen corresponding path program 3 times [2021-07-13 18:55:48,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:48,348 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283425009] [2021-07-13 18:55:48,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:48,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:48,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:48,934 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:48,934 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283425009] [2021-07-13 18:55:48,934 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283425009] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:48,934 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:48,934 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-13 18:55:48,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139040950] [2021-07-13 18:55:48,935 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-13 18:55:48,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:48,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-13 18:55:48,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-07-13 18:55:48,936 INFO L87 Difference]: Start difference. First operand 4524 states and 12121 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:50,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:50,405 INFO L93 Difference]: Finished difference Result 5240 states and 13612 transitions. [2021-07-13 18:55:50,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-13 18:55:50,406 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:55:50,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:50,421 INFO L225 Difference]: With dead ends: 5240 [2021-07-13 18:55:50,422 INFO L226 Difference]: Without dead ends: 5240 [2021-07-13 18:55:50,422 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1228.5ms TimeCoverageRelationStatistics Valid=360, Invalid=900, Unknown=0, NotChecked=0, Total=1260 [2021-07-13 18:55:50,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5240 states. [2021-07-13 18:55:50,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5240 to 4641. [2021-07-13 18:55:50,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4641 states, 4639 states have (on average 2.6704031041172667) internal successors, (12388), 4640 states have internal predecessors, (12388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:50,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4641 states to 4641 states and 12388 transitions. [2021-07-13 18:55:50,568 INFO L78 Accepts]: Start accepts. Automaton has 4641 states and 12388 transitions. Word has length 114 [2021-07-13 18:55:50,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:50,568 INFO L482 AbstractCegarLoop]: Abstraction has 4641 states and 12388 transitions. [2021-07-13 18:55:50,569 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:50,569 INFO L276 IsEmpty]: Start isEmpty. Operand 4641 states and 12388 transitions. [2021-07-13 18:55:50,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:55:50,581 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:50,582 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:50,582 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-13 18:55:50,582 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:50,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:50,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1957310510, now seen corresponding path program 4 times [2021-07-13 18:55:50,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:50,583 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514851411] [2021-07-13 18:55:50,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:50,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:51,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:51,199 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:51,199 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514851411] [2021-07-13 18:55:51,199 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514851411] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:51,199 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:51,199 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-13 18:55:51,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119409396] [2021-07-13 18:55:51,200 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-13 18:55:51,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:51,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-13 18:55:51,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-07-13 18:55:51,201 INFO L87 Difference]: Start difference. First operand 4641 states and 12388 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:51,953 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2021-07-13 18:55:52,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:52,522 INFO L93 Difference]: Finished difference Result 5618 states and 14458 transitions. [2021-07-13 18:55:52,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-13 18:55:52,523 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:55:52,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:52,537 INFO L225 Difference]: With dead ends: 5618 [2021-07-13 18:55:52,538 INFO L226 Difference]: Without dead ends: 5618 [2021-07-13 18:55:52,538 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1153.5ms TimeCoverageRelationStatistics Valid=349, Invalid=911, Unknown=0, NotChecked=0, Total=1260 [2021-07-13 18:55:52,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5618 states. [2021-07-13 18:55:52,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5618 to 4688. [2021-07-13 18:55:52,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4688 states, 4686 states have (on average 2.667733674775928) internal successors, (12501), 4687 states have internal predecessors, (12501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:52,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4688 states to 4688 states and 12501 transitions. [2021-07-13 18:55:52,669 INFO L78 Accepts]: Start accepts. Automaton has 4688 states and 12501 transitions. Word has length 114 [2021-07-13 18:55:52,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:52,670 INFO L482 AbstractCegarLoop]: Abstraction has 4688 states and 12501 transitions. [2021-07-13 18:55:52,670 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:52,670 INFO L276 IsEmpty]: Start isEmpty. Operand 4688 states and 12501 transitions. [2021-07-13 18:55:52,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:55:52,681 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:52,682 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:52,682 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-07-13 18:55:52,682 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:52,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:52,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1573319360, now seen corresponding path program 5 times [2021-07-13 18:55:52,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:52,683 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439477750] [2021-07-13 18:55:52,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:52,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:53,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:53,214 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:53,214 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439477750] [2021-07-13 18:55:53,214 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439477750] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:53,214 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:53,214 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-13 18:55:53,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282813163] [2021-07-13 18:55:53,215 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-13 18:55:53,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:53,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-13 18:55:53,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-07-13 18:55:53,216 INFO L87 Difference]: Start difference. First operand 4688 states and 12501 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:53,859 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-07-13 18:55:53,990 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2021-07-13 18:55:54,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:54,551 INFO L93 Difference]: Finished difference Result 5759 states and 14797 transitions. [2021-07-13 18:55:54,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-13 18:55:54,552 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:55:54,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:54,566 INFO L225 Difference]: With dead ends: 5759 [2021-07-13 18:55:54,566 INFO L226 Difference]: Without dead ends: 5759 [2021-07-13 18:55:54,566 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 1154.5ms TimeCoverageRelationStatistics Valid=338, Invalid=922, Unknown=0, NotChecked=0, Total=1260 [2021-07-13 18:55:54,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5759 states. [2021-07-13 18:55:54,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5759 to 4782. [2021-07-13 18:55:54,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4782 states, 4780 states have (on average 2.6625523012552303) internal successors, (12727), 4781 states have internal predecessors, (12727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:54,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4782 states to 4782 states and 12727 transitions. [2021-07-13 18:55:54,694 INFO L78 Accepts]: Start accepts. Automaton has 4782 states and 12727 transitions. Word has length 114 [2021-07-13 18:55:54,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:54,694 INFO L482 AbstractCegarLoop]: Abstraction has 4782 states and 12727 transitions. [2021-07-13 18:55:54,694 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:54,694 INFO L276 IsEmpty]: Start isEmpty. Operand 4782 states and 12727 transitions. [2021-07-13 18:55:54,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:55:54,710 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:54,710 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:54,710 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-07-13 18:55:54,710 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:54,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:54,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1704432286, now seen corresponding path program 6 times [2021-07-13 18:55:54,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:54,711 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448682256] [2021-07-13 18:55:54,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:54,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:55,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:55,249 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:55,249 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448682256] [2021-07-13 18:55:55,249 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448682256] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:55,249 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:55,249 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-13 18:55:55,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737353562] [2021-07-13 18:55:55,250 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-13 18:55:55,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:55,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-13 18:55:55,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-07-13 18:55:55,251 INFO L87 Difference]: Start difference. First operand 4782 states and 12727 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:56,015 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2021-07-13 18:55:56,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:56,483 INFO L93 Difference]: Finished difference Result 5900 states and 15136 transitions. [2021-07-13 18:55:56,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-13 18:55:56,484 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:55:56,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:56,495 INFO L225 Difference]: With dead ends: 5900 [2021-07-13 18:55:56,495 INFO L226 Difference]: Without dead ends: 5900 [2021-07-13 18:55:56,496 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 1064.3ms TimeCoverageRelationStatistics Valid=327, Invalid=933, Unknown=0, NotChecked=0, Total=1260 [2021-07-13 18:55:56,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5900 states. [2021-07-13 18:55:56,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5900 to 4829. [2021-07-13 18:55:56,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4829 states, 4827 states have (on average 2.6600372902423866) internal successors, (12840), 4828 states have internal predecessors, (12840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:56,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4829 states to 4829 states and 12840 transitions. [2021-07-13 18:55:56,624 INFO L78 Accepts]: Start accepts. Automaton has 4829 states and 12840 transitions. Word has length 114 [2021-07-13 18:55:56,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:56,625 INFO L482 AbstractCegarLoop]: Abstraction has 4829 states and 12840 transitions. [2021-07-13 18:55:56,625 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:56,625 INFO L276 IsEmpty]: Start isEmpty. Operand 4829 states and 12840 transitions. [2021-07-13 18:55:56,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:55:56,635 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:56,635 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:56,635 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-07-13 18:55:56,636 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:56,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:56,636 INFO L82 PathProgramCache]: Analyzing trace with hash 561940594, now seen corresponding path program 7 times [2021-07-13 18:55:56,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:56,636 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481192100] [2021-07-13 18:55:56,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:56,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:57,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:57,108 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:57,108 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481192100] [2021-07-13 18:55:57,108 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481192100] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:57,108 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:57,108 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-13 18:55:57,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792926985] [2021-07-13 18:55:57,108 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-13 18:55:57,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:57,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-13 18:55:57,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2021-07-13 18:55:57,109 INFO L87 Difference]: Start difference. First operand 4829 states and 12840 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:57,821 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2021-07-13 18:55:58,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:58,255 INFO L93 Difference]: Finished difference Result 5302 states and 13818 transitions. [2021-07-13 18:55:58,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 18:55:58,256 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:55:58,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:58,262 INFO L225 Difference]: With dead ends: 5302 [2021-07-13 18:55:58,263 INFO L226 Difference]: Without dead ends: 5302 [2021-07-13 18:55:58,263 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 1018.6ms TimeCoverageRelationStatistics Valid=316, Invalid=944, Unknown=0, NotChecked=0, Total=1260 [2021-07-13 18:55:58,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5302 states. [2021-07-13 18:55:58,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5302 to 4524. [2021-07-13 18:55:58,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4524 states, 4522 states have (on average 2.680451127819549) internal successors, (12121), 4523 states have internal predecessors, (12121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:58,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4524 states to 4524 states and 12121 transitions. [2021-07-13 18:55:58,381 INFO L78 Accepts]: Start accepts. Automaton has 4524 states and 12121 transitions. Word has length 114 [2021-07-13 18:55:58,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:58,382 INFO L482 AbstractCegarLoop]: Abstraction has 4524 states and 12121 transitions. [2021-07-13 18:55:58,382 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:58,382 INFO L276 IsEmpty]: Start isEmpty. Operand 4524 states and 12121 transitions. [2021-07-13 18:55:58,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:55:58,391 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:58,391 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:58,391 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-07-13 18:55:58,392 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:58,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:58,392 INFO L82 PathProgramCache]: Analyzing trace with hash 126114190, now seen corresponding path program 8 times [2021-07-13 18:55:58,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:58,393 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503849449] [2021-07-13 18:55:58,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:58,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:58,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:58,902 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:58,902 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503849449] [2021-07-13 18:55:58,902 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503849449] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:58,902 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:58,902 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:55:58,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317255942] [2021-07-13 18:55:58,902 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:55:58,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:58,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:55:58,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:55:58,903 INFO L87 Difference]: Start difference. First operand 4524 states and 12121 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:59,751 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:55:59,944 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:56:00,122 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:56:00,374 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:56:00,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:00,542 INFO L93 Difference]: Finished difference Result 8479 states and 22743 transitions. [2021-07-13 18:56:00,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:56:00,543 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:56:00,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:00,560 INFO L225 Difference]: With dead ends: 8479 [2021-07-13 18:56:00,561 INFO L226 Difference]: Without dead ends: 8479 [2021-07-13 18:56:00,561 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1568.0ms TimeCoverageRelationStatistics Valid=291, Invalid=701, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:56:00,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8479 states. [2021-07-13 18:56:00,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8479 to 4594. [2021-07-13 18:56:00,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4594 states, 4592 states have (on average 2.684233449477352) internal successors, (12326), 4593 states have internal predecessors, (12326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:00,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4594 states to 4594 states and 12326 transitions. [2021-07-13 18:56:00,712 INFO L78 Accepts]: Start accepts. Automaton has 4594 states and 12326 transitions. Word has length 114 [2021-07-13 18:56:00,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:00,713 INFO L482 AbstractCegarLoop]: Abstraction has 4594 states and 12326 transitions. [2021-07-13 18:56:00,713 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:00,713 INFO L276 IsEmpty]: Start isEmpty. Operand 4594 states and 12326 transitions. [2021-07-13 18:56:00,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:56:00,722 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:00,723 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:00,723 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-07-13 18:56:00,723 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:00,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:00,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1959264756, now seen corresponding path program 9 times [2021-07-13 18:56:00,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:00,724 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868094794] [2021-07-13 18:56:00,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:00,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:01,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:01,331 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:01,331 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868094794] [2021-07-13 18:56:01,331 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868094794] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:01,331 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:01,331 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:01,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843985468] [2021-07-13 18:56:01,332 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:01,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:01,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:01,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:01,332 INFO L87 Difference]: Start difference. First operand 4594 states and 12326 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:02,130 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:56:02,311 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:56:02,505 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 18:56:02,706 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 18:56:02,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:02,841 INFO L93 Difference]: Finished difference Result 7977 states and 21077 transitions. [2021-07-13 18:56:02,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:56:02,841 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:56:02,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:02,856 INFO L225 Difference]: With dead ends: 7977 [2021-07-13 18:56:02,856 INFO L226 Difference]: Without dead ends: 7977 [2021-07-13 18:56:02,857 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1476.8ms TimeCoverageRelationStatistics Valid=291, Invalid=701, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:56:02,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7977 states. [2021-07-13 18:56:02,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7977 to 4692. [2021-07-13 18:56:02,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4692 states, 4690 states have (on average 2.6714285714285713) internal successors, (12529), 4691 states have internal predecessors, (12529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:02,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4692 states to 4692 states and 12529 transitions. [2021-07-13 18:56:02,983 INFO L78 Accepts]: Start accepts. Automaton has 4692 states and 12529 transitions. Word has length 114 [2021-07-13 18:56:02,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:02,983 INFO L482 AbstractCegarLoop]: Abstraction has 4692 states and 12529 transitions. [2021-07-13 18:56:02,983 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:02,983 INFO L276 IsEmpty]: Start isEmpty. Operand 4692 states and 12529 transitions. [2021-07-13 18:56:02,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:56:02,992 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:02,992 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:02,993 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-07-13 18:56:02,993 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:02,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:02,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1176796782, now seen corresponding path program 10 times [2021-07-13 18:56:02,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:02,993 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051339038] [2021-07-13 18:56:02,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:03,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:03,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:03,498 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:03,498 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051339038] [2021-07-13 18:56:03,498 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051339038] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:03,498 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:03,498 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-13 18:56:03,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917943148] [2021-07-13 18:56:03,499 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-13 18:56:03,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:03,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-13 18:56:03,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2021-07-13 18:56:03,500 INFO L87 Difference]: Start difference. First operand 4692 states and 12529 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:04,377 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2021-07-13 18:56:04,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:04,840 INFO L93 Difference]: Finished difference Result 6412 states and 16826 transitions. [2021-07-13 18:56:04,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 18:56:04,841 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:56:04,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:04,850 INFO L225 Difference]: With dead ends: 6412 [2021-07-13 18:56:04,851 INFO L226 Difference]: Without dead ends: 6412 [2021-07-13 18:56:04,851 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 1149.7ms TimeCoverageRelationStatistics Valid=329, Invalid=793, Unknown=0, NotChecked=0, Total=1122 [2021-07-13 18:56:04,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6412 states. [2021-07-13 18:56:04,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6412 to 4842. [2021-07-13 18:56:04,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4842 states, 4840 states have (on average 2.671694214876033) internal successors, (12931), 4841 states have internal predecessors, (12931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:04,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4842 states to 4842 states and 12931 transitions. [2021-07-13 18:56:04,963 INFO L78 Accepts]: Start accepts. Automaton has 4842 states and 12931 transitions. Word has length 114 [2021-07-13 18:56:04,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:04,963 INFO L482 AbstractCegarLoop]: Abstraction has 4842 states and 12931 transitions. [2021-07-13 18:56:04,963 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:04,963 INFO L276 IsEmpty]: Start isEmpty. Operand 4842 states and 12931 transitions. [2021-07-13 18:56:04,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:56:04,973 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:04,974 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:04,974 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-07-13 18:56:04,974 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:04,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:04,974 INFO L82 PathProgramCache]: Analyzing trace with hash -320288030, now seen corresponding path program 1 times [2021-07-13 18:56:04,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:04,975 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496008361] [2021-07-13 18:56:04,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:05,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:05,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:05,848 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:05,848 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496008361] [2021-07-13 18:56:05,849 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496008361] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:05,849 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:05,849 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-07-13 18:56:05,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139017911] [2021-07-13 18:56:05,849 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-13 18:56:05,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:05,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-13 18:56:05,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=536, Unknown=0, NotChecked=0, Total=650 [2021-07-13 18:56:05,850 INFO L87 Difference]: Start difference. First operand 4842 states and 12931 transitions. Second operand has 26 states, 26 states have (on average 4.384615384615385) internal successors, (114), 26 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:09,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:09,954 INFO L93 Difference]: Finished difference Result 11567 states and 31076 transitions. [2021-07-13 18:56:09,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-07-13 18:56:09,955 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.384615384615385) internal successors, (114), 26 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:56:09,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:09,976 INFO L225 Difference]: With dead ends: 11567 [2021-07-13 18:56:09,976 INFO L226 Difference]: Without dead ends: 11482 [2021-07-13 18:56:09,977 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 931 ImplicationChecksByTransitivity, 2749.8ms TimeCoverageRelationStatistics Valid=960, Invalid=3732, Unknown=0, NotChecked=0, Total=4692 [2021-07-13 18:56:10,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11482 states. [2021-07-13 18:56:10,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11482 to 8109. [2021-07-13 18:56:10,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8109 states, 8107 states have (on average 2.685703712840755) internal successors, (21773), 8108 states have internal predecessors, (21773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:10,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8109 states to 8109 states and 21773 transitions. [2021-07-13 18:56:10,176 INFO L78 Accepts]: Start accepts. Automaton has 8109 states and 21773 transitions. Word has length 114 [2021-07-13 18:56:10,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:10,177 INFO L482 AbstractCegarLoop]: Abstraction has 8109 states and 21773 transitions. [2021-07-13 18:56:10,177 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.384615384615385) internal successors, (114), 26 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:10,177 INFO L276 IsEmpty]: Start isEmpty. Operand 8109 states and 21773 transitions. [2021-07-13 18:56:10,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:56:10,198 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:10,198 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:10,198 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-07-13 18:56:10,199 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:10,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:10,199 INFO L82 PathProgramCache]: Analyzing trace with hash 69643098, now seen corresponding path program 11 times [2021-07-13 18:56:10,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:10,200 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139105601] [2021-07-13 18:56:10,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:10,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:10,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:10,661 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:10,662 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139105601] [2021-07-13 18:56:10,662 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139105601] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:10,662 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:10,662 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-13 18:56:10,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66480059] [2021-07-13 18:56:10,663 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-13 18:56:10,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:10,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-13 18:56:10,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-07-13 18:56:10,665 INFO L87 Difference]: Start difference. First operand 8109 states and 21773 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:12,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:12,228 INFO L93 Difference]: Finished difference Result 11359 states and 29724 transitions. [2021-07-13 18:56:12,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-13 18:56:12,228 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:56:12,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:12,245 INFO L225 Difference]: With dead ends: 11359 [2021-07-13 18:56:12,245 INFO L226 Difference]: Without dead ends: 11359 [2021-07-13 18:56:12,246 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 1310.0ms TimeCoverageRelationStatistics Valid=360, Invalid=900, Unknown=0, NotChecked=0, Total=1260 [2021-07-13 18:56:12,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11359 states. [2021-07-13 18:56:12,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11359 to 8214. [2021-07-13 18:56:12,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8214 states, 8212 states have (on average 2.681685338528982) internal successors, (22022), 8213 states have internal predecessors, (22022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:12,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8214 states to 8214 states and 22022 transitions. [2021-07-13 18:56:12,413 INFO L78 Accepts]: Start accepts. Automaton has 8214 states and 22022 transitions. Word has length 114 [2021-07-13 18:56:12,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:12,414 INFO L482 AbstractCegarLoop]: Abstraction has 8214 states and 22022 transitions. [2021-07-13 18:56:12,414 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:12,414 INFO L276 IsEmpty]: Start isEmpty. Operand 8214 states and 22022 transitions. [2021-07-13 18:56:12,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:56:12,427 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:12,427 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:12,427 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-07-13 18:56:12,427 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:12,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:12,428 INFO L82 PathProgramCache]: Analyzing trace with hash 696589166, now seen corresponding path program 12 times [2021-07-13 18:56:12,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:12,428 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231249954] [2021-07-13 18:56:12,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:12,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:12,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:12,927 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:12,927 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231249954] [2021-07-13 18:56:12,927 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231249954] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:12,927 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:12,927 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:12,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181964249] [2021-07-13 18:56:12,928 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:12,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:12,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:12,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:12,929 INFO L87 Difference]: Start difference. First operand 8214 states and 22022 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:13,798 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:56:13,987 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 18:56:14,181 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:56:14,410 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:56:14,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:14,542 INFO L93 Difference]: Finished difference Result 12543 states and 33366 transitions. [2021-07-13 18:56:14,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:56:14,542 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:56:14,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:14,563 INFO L225 Difference]: With dead ends: 12543 [2021-07-13 18:56:14,563 INFO L226 Difference]: Without dead ends: 12543 [2021-07-13 18:56:14,564 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1588.7ms TimeCoverageRelationStatistics Valid=291, Invalid=701, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:56:14,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12543 states. [2021-07-13 18:56:14,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12543 to 8214. [2021-07-13 18:56:14,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8214 states, 8212 states have (on average 2.681685338528982) internal successors, (22022), 8213 states have internal predecessors, (22022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:14,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8214 states to 8214 states and 22022 transitions. [2021-07-13 18:56:14,726 INFO L78 Accepts]: Start accepts. Automaton has 8214 states and 22022 transitions. Word has length 114 [2021-07-13 18:56:14,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:14,727 INFO L482 AbstractCegarLoop]: Abstraction has 8214 states and 22022 transitions. [2021-07-13 18:56:14,727 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:14,727 INFO L276 IsEmpty]: Start isEmpty. Operand 8214 states and 22022 transitions. [2021-07-13 18:56:14,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:56:14,739 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:14,739 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:14,740 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-07-13 18:56:14,740 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:14,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:14,740 INFO L82 PathProgramCache]: Analyzing trace with hash 317771852, now seen corresponding path program 13 times [2021-07-13 18:56:14,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:14,740 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954817203] [2021-07-13 18:56:14,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:14,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:15,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:15,233 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:15,234 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954817203] [2021-07-13 18:56:15,234 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954817203] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:15,234 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:15,234 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:15,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822634141] [2021-07-13 18:56:15,235 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:15,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:15,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:15,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:15,237 INFO L87 Difference]: Start difference. First operand 8214 states and 22022 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:16,060 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-13 18:56:16,220 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 18:56:16,426 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:56:16,630 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:56:16,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:16,824 INFO L93 Difference]: Finished difference Result 13047 states and 34842 transitions. [2021-07-13 18:56:16,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:56:16,825 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:56:16,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:16,847 INFO L225 Difference]: With dead ends: 13047 [2021-07-13 18:56:16,847 INFO L226 Difference]: Without dead ends: 13047 [2021-07-13 18:56:16,847 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1478.3ms TimeCoverageRelationStatistics Valid=291, Invalid=701, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:56:16,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13047 states. [2021-07-13 18:56:16,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13047 to 8214. [2021-07-13 18:56:17,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8214 states, 8212 states have (on average 2.681685338528982) internal successors, (22022), 8213 states have internal predecessors, (22022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:17,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8214 states to 8214 states and 22022 transitions. [2021-07-13 18:56:17,025 INFO L78 Accepts]: Start accepts. Automaton has 8214 states and 22022 transitions. Word has length 114 [2021-07-13 18:56:17,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:17,025 INFO L482 AbstractCegarLoop]: Abstraction has 8214 states and 22022 transitions. [2021-07-13 18:56:17,025 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:17,025 INFO L276 IsEmpty]: Start isEmpty. Operand 8214 states and 22022 transitions. [2021-07-13 18:56:17,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:56:17,037 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:17,037 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:17,037 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-07-13 18:56:17,037 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:17,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:17,038 INFO L82 PathProgramCache]: Analyzing trace with hash 658016210, now seen corresponding path program 14 times [2021-07-13 18:56:17,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:17,038 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974166547] [2021-07-13 18:56:17,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:17,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:17,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:17,548 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:17,548 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974166547] [2021-07-13 18:56:17,548 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974166547] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:17,549 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:17,549 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:17,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042127343] [2021-07-13 18:56:17,549 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:17,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:17,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:17,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:17,550 INFO L87 Difference]: Start difference. First operand 8214 states and 22022 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:18,186 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2021-07-13 18:56:18,461 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-13 18:56:18,625 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 18:56:18,822 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:56:19,030 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:56:19,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:19,161 INFO L93 Difference]: Finished difference Result 9491 states and 25105 transitions. [2021-07-13 18:56:19,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:56:19,162 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:56:19,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:19,177 INFO L225 Difference]: With dead ends: 9491 [2021-07-13 18:56:19,177 INFO L226 Difference]: Without dead ends: 9491 [2021-07-13 18:56:19,178 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1585.4ms TimeCoverageRelationStatistics Valid=291, Invalid=701, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:56:19,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9491 states. [2021-07-13 18:56:19,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9491 to 6576. [2021-07-13 18:56:19,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6576 states, 6574 states have (on average 2.648919987830849) internal successors, (17414), 6575 states have internal predecessors, (17414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:19,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6576 states to 6576 states and 17414 transitions. [2021-07-13 18:56:19,318 INFO L78 Accepts]: Start accepts. Automaton has 6576 states and 17414 transitions. Word has length 114 [2021-07-13 18:56:19,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:19,318 INFO L482 AbstractCegarLoop]: Abstraction has 6576 states and 17414 transitions. [2021-07-13 18:56:19,318 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:19,318 INFO L276 IsEmpty]: Start isEmpty. Operand 6576 states and 17414 transitions. [2021-07-13 18:56:19,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:56:19,327 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:19,327 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:19,327 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-07-13 18:56:19,327 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:19,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:19,328 INFO L82 PathProgramCache]: Analyzing trace with hash 334808012, now seen corresponding path program 15 times [2021-07-13 18:56:19,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:19,328 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527122554] [2021-07-13 18:56:19,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:19,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:19,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:19,810 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:19,810 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527122554] [2021-07-13 18:56:19,811 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527122554] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:19,811 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:19,811 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:19,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635794750] [2021-07-13 18:56:19,811 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:19,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:19,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:19,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:19,813 INFO L87 Difference]: Start difference. First operand 6576 states and 17414 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:20,422 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-13 18:56:20,569 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:56:20,740 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:56:20,924 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:56:21,130 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:56:21,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:21,290 INFO L93 Difference]: Finished difference Result 16373 states and 43362 transitions. [2021-07-13 18:56:21,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:56:21,290 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:56:21,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:21,318 INFO L225 Difference]: With dead ends: 16373 [2021-07-13 18:56:21,318 INFO L226 Difference]: Without dead ends: 16373 [2021-07-13 18:56:21,319 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1378.6ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:56:21,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16373 states. [2021-07-13 18:56:21,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16373 to 6680. [2021-07-13 18:56:21,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6680 states, 6678 states have (on average 2.652890086852351) internal successors, (17716), 6679 states have internal predecessors, (17716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:21,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6680 states to 6680 states and 17716 transitions. [2021-07-13 18:56:21,508 INFO L78 Accepts]: Start accepts. Automaton has 6680 states and 17716 transitions. Word has length 114 [2021-07-13 18:56:21,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:21,509 INFO L482 AbstractCegarLoop]: Abstraction has 6680 states and 17716 transitions. [2021-07-13 18:56:21,509 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:21,509 INFO L276 IsEmpty]: Start isEmpty. Operand 6680 states and 17716 transitions. [2021-07-13 18:56:21,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:56:21,517 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:21,517 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:21,517 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-07-13 18:56:21,518 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:21,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:21,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1750570934, now seen corresponding path program 16 times [2021-07-13 18:56:21,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:21,518 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244328414] [2021-07-13 18:56:21,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:21,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:21,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:21,937 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:21,937 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244328414] [2021-07-13 18:56:21,938 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244328414] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:21,938 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:21,938 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:21,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360404326] [2021-07-13 18:56:21,938 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:21,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:21,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:21,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:21,939 INFO L87 Difference]: Start difference. First operand 6680 states and 17716 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:22,617 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-07-13 18:56:22,747 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-13 18:56:22,895 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:56:23,066 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:56:23,253 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 18:56:23,451 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 18:56:23,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:23,622 INFO L93 Difference]: Finished difference Result 15951 states and 41848 transitions. [2021-07-13 18:56:23,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:56:23,622 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:56:23,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:23,649 INFO L225 Difference]: With dead ends: 15951 [2021-07-13 18:56:23,649 INFO L226 Difference]: Without dead ends: 15951 [2021-07-13 18:56:23,650 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1569.4ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:56:23,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15951 states. [2021-07-13 18:56:23,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15951 to 6680. [2021-07-13 18:56:23,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6680 states, 6678 states have (on average 2.6501946690625937) internal successors, (17698), 6679 states have internal predecessors, (17698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:23,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6680 states to 6680 states and 17698 transitions. [2021-07-13 18:56:23,831 INFO L78 Accepts]: Start accepts. Automaton has 6680 states and 17698 transitions. Word has length 114 [2021-07-13 18:56:23,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:23,831 INFO L482 AbstractCegarLoop]: Abstraction has 6680 states and 17698 transitions. [2021-07-13 18:56:23,831 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:23,831 INFO L276 IsEmpty]: Start isEmpty. Operand 6680 states and 17698 transitions. [2021-07-13 18:56:23,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:56:23,843 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:23,843 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:23,843 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-07-13 18:56:23,843 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:23,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:23,844 INFO L82 PathProgramCache]: Analyzing trace with hash 905282988, now seen corresponding path program 17 times [2021-07-13 18:56:23,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:23,844 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326940773] [2021-07-13 18:56:23,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:23,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:24,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:24,303 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:24,303 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326940773] [2021-07-13 18:56:24,303 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326940773] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:24,303 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:24,303 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:24,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036237065] [2021-07-13 18:56:24,304 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:24,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:24,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:24,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:24,305 INFO L87 Difference]: Start difference. First operand 6680 states and 17698 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:25,204 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:56:25,355 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 18:56:25,557 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:56:25,761 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:56:25,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:25,913 INFO L93 Difference]: Finished difference Result 13429 states and 35341 transitions. [2021-07-13 18:56:25,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:56:25,913 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:56:25,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:25,936 INFO L225 Difference]: With dead ends: 13429 [2021-07-13 18:56:25,936 INFO L226 Difference]: Without dead ends: 13429 [2021-07-13 18:56:25,937 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1462.6ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:56:25,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13429 states. [2021-07-13 18:56:26,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13429 to 6652. [2021-07-13 18:56:26,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6652 states, 6650 states have (on average 2.6490225563909773) internal successors, (17616), 6651 states have internal predecessors, (17616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:26,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6652 states to 6652 states and 17616 transitions. [2021-07-13 18:56:26,082 INFO L78 Accepts]: Start accepts. Automaton has 6652 states and 17616 transitions. Word has length 114 [2021-07-13 18:56:26,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:26,082 INFO L482 AbstractCegarLoop]: Abstraction has 6652 states and 17616 transitions. [2021-07-13 18:56:26,082 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:26,083 INFO L276 IsEmpty]: Start isEmpty. Operand 6652 states and 17616 transitions. [2021-07-13 18:56:26,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:56:26,095 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:26,095 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:26,095 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-07-13 18:56:26,095 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:26,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:26,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1203683662, now seen corresponding path program 18 times [2021-07-13 18:56:26,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:26,096 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263331909] [2021-07-13 18:56:26,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:26,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:26,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:26,502 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:26,502 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263331909] [2021-07-13 18:56:26,502 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263331909] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:26,502 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:26,502 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:26,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22274299] [2021-07-13 18:56:26,503 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:26,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:26,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:26,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:26,504 INFO L87 Difference]: Start difference. First operand 6652 states and 17616 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:27,193 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-13 18:56:27,353 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 18:56:27,513 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:56:27,686 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:56:27,927 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:56:28,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:28,086 INFO L93 Difference]: Finished difference Result 12763 states and 33601 transitions. [2021-07-13 18:56:28,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:56:28,086 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:56:28,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:28,108 INFO L225 Difference]: With dead ends: 12763 [2021-07-13 18:56:28,108 INFO L226 Difference]: Without dead ends: 12763 [2021-07-13 18:56:28,108 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1471.4ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:56:28,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12763 states. [2021-07-13 18:56:28,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12763 to 6682. [2021-07-13 18:56:28,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6682 states, 6680 states have (on average 2.6501497005988024) internal successors, (17703), 6681 states have internal predecessors, (17703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:28,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6682 states to 6682 states and 17703 transitions. [2021-07-13 18:56:28,251 INFO L78 Accepts]: Start accepts. Automaton has 6682 states and 17703 transitions. Word has length 114 [2021-07-13 18:56:28,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:28,251 INFO L482 AbstractCegarLoop]: Abstraction has 6682 states and 17703 transitions. [2021-07-13 18:56:28,252 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:28,252 INFO L276 IsEmpty]: Start isEmpty. Operand 6682 states and 17703 transitions. [2021-07-13 18:56:28,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:56:28,261 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:28,261 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:28,261 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-07-13 18:56:28,261 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:28,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:28,261 INFO L82 PathProgramCache]: Analyzing trace with hash -881695284, now seen corresponding path program 19 times [2021-07-13 18:56:28,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:28,261 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933076644] [2021-07-13 18:56:28,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:28,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:28,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:28,661 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:28,661 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933076644] [2021-07-13 18:56:28,661 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933076644] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:28,661 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:28,661 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:28,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563831963] [2021-07-13 18:56:28,661 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:28,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:28,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:28,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:28,662 INFO L87 Difference]: Start difference. First operand 6682 states and 17703 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:29,483 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 18:56:29,643 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:56:29,835 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 18:56:30,027 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 18:56:30,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:30,195 INFO L93 Difference]: Finished difference Result 13576 states and 35405 transitions. [2021-07-13 18:56:30,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:56:30,196 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:56:30,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:30,221 INFO L225 Difference]: With dead ends: 13576 [2021-07-13 18:56:30,221 INFO L226 Difference]: Without dead ends: 13576 [2021-07-13 18:56:30,222 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1414.5ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:56:30,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13576 states. [2021-07-13 18:56:30,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13576 to 6666. [2021-07-13 18:56:30,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6666 states, 6664 states have (on average 2.649609843937575) internal successors, (17657), 6665 states have internal predecessors, (17657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:30,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6666 states to 6666 states and 17657 transitions. [2021-07-13 18:56:30,419 INFO L78 Accepts]: Start accepts. Automaton has 6666 states and 17657 transitions. Word has length 114 [2021-07-13 18:56:30,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:30,420 INFO L482 AbstractCegarLoop]: Abstraction has 6666 states and 17657 transitions. [2021-07-13 18:56:30,420 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:30,420 INFO L276 IsEmpty]: Start isEmpty. Operand 6666 states and 17657 transitions. [2021-07-13 18:56:30,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:56:30,431 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:30,431 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:30,432 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-07-13 18:56:30,432 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:30,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:30,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1155920082, now seen corresponding path program 20 times [2021-07-13 18:56:30,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:30,433 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536046467] [2021-07-13 18:56:30,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:30,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:30,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:30,835 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:30,835 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536046467] [2021-07-13 18:56:30,835 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536046467] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:30,835 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:30,835 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:30,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660151050] [2021-07-13 18:56:30,836 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:30,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:30,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:30,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:30,837 INFO L87 Difference]: Start difference. First operand 6666 states and 17657 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:31,461 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-07-13 18:56:31,780 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 18:56:31,957 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:56:32,146 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 18:56:32,341 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 18:56:32,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:32,501 INFO L93 Difference]: Finished difference Result 12902 states and 33818 transitions. [2021-07-13 18:56:32,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:56:32,501 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:56:32,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:32,525 INFO L225 Difference]: With dead ends: 12902 [2021-07-13 18:56:32,526 INFO L226 Difference]: Without dead ends: 12902 [2021-07-13 18:56:32,526 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1515.7ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:56:32,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12902 states. [2021-07-13 18:56:32,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12902 to 6680. [2021-07-13 18:56:32,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6680 states, 6678 states have (on average 2.6501946690625937) internal successors, (17698), 6679 states have internal predecessors, (17698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:32,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6680 states to 6680 states and 17698 transitions. [2021-07-13 18:56:32,709 INFO L78 Accepts]: Start accepts. Automaton has 6680 states and 17698 transitions. Word has length 114 [2021-07-13 18:56:32,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:32,709 INFO L482 AbstractCegarLoop]: Abstraction has 6680 states and 17698 transitions. [2021-07-13 18:56:32,710 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:32,710 INFO L276 IsEmpty]: Start isEmpty. Operand 6680 states and 17698 transitions. [2021-07-13 18:56:32,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:56:32,720 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:32,720 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:32,720 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-07-13 18:56:32,720 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:32,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:32,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1404467062, now seen corresponding path program 21 times [2021-07-13 18:56:32,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:32,721 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037389574] [2021-07-13 18:56:32,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:32,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:33,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:33,182 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:33,182 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037389574] [2021-07-13 18:56:33,182 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037389574] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:33,182 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:33,183 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:33,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960062137] [2021-07-13 18:56:33,183 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:33,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:33,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:33,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:33,184 INFO L87 Difference]: Start difference. First operand 6680 states and 17698 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:34,045 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 18:56:34,211 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:56:34,399 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:56:34,597 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:56:34,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:34,744 INFO L93 Difference]: Finished difference Result 10249 states and 27058 transitions. [2021-07-13 18:56:34,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:56:34,744 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:56:34,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:34,760 INFO L225 Difference]: With dead ends: 10249 [2021-07-13 18:56:34,760 INFO L226 Difference]: Without dead ends: 10249 [2021-07-13 18:56:34,761 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1501.4ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:56:34,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10249 states. [2021-07-13 18:56:34,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10249 to 6764. [2021-07-13 18:56:34,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6764 states, 6762 states have (on average 2.653652765454008) internal successors, (17944), 6763 states have internal predecessors, (17944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:34,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6764 states to 6764 states and 17944 transitions. [2021-07-13 18:56:34,892 INFO L78 Accepts]: Start accepts. Automaton has 6764 states and 17944 transitions. Word has length 114 [2021-07-13 18:56:34,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:34,893 INFO L482 AbstractCegarLoop]: Abstraction has 6764 states and 17944 transitions. [2021-07-13 18:56:34,893 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:34,893 INFO L276 IsEmpty]: Start isEmpty. Operand 6764 states and 17944 transitions. [2021-07-13 18:56:34,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:56:34,903 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:34,903 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:34,903 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-07-13 18:56:34,903 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:34,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:34,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1729361230, now seen corresponding path program 2 times [2021-07-13 18:56:34,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:34,904 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436224142] [2021-07-13 18:56:34,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:34,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:35,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:35,613 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:35,613 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436224142] [2021-07-13 18:56:35,613 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436224142] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:35,613 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:35,613 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-07-13 18:56:35,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991569514] [2021-07-13 18:56:35,613 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-13 18:56:35,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:35,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-13 18:56:35,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=538, Unknown=0, NotChecked=0, Total=650 [2021-07-13 18:56:35,614 INFO L87 Difference]: Start difference. First operand 6764 states and 17944 transitions. Second operand has 26 states, 26 states have (on average 4.384615384615385) internal successors, (114), 26 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:39,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:39,640 INFO L93 Difference]: Finished difference Result 11039 states and 28924 transitions. [2021-07-13 18:56:39,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-07-13 18:56:39,641 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.384615384615385) internal successors, (114), 26 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:56:39,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:39,657 INFO L225 Difference]: With dead ends: 11039 [2021-07-13 18:56:39,657 INFO L226 Difference]: Without dead ends: 10934 [2021-07-13 18:56:39,658 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 993 ImplicationChecksByTransitivity, 2762.7ms TimeCoverageRelationStatistics Valid=1066, Invalid=4046, Unknown=0, NotChecked=0, Total=5112 [2021-07-13 18:56:39,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10934 states. [2021-07-13 18:56:39,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10934 to 8083. [2021-07-13 18:56:39,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8083 states, 8081 states have (on average 2.658458111619849) internal successors, (21483), 8082 states have internal predecessors, (21483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:39,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8083 states to 8083 states and 21483 transitions. [2021-07-13 18:56:39,829 INFO L78 Accepts]: Start accepts. Automaton has 8083 states and 21483 transitions. Word has length 114 [2021-07-13 18:56:39,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:39,829 INFO L482 AbstractCegarLoop]: Abstraction has 8083 states and 21483 transitions. [2021-07-13 18:56:39,829 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.384615384615385) internal successors, (114), 26 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:39,829 INFO L276 IsEmpty]: Start isEmpty. Operand 8083 states and 21483 transitions. [2021-07-13 18:56:39,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:56:39,840 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:39,840 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:39,840 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-07-13 18:56:39,840 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:39,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:39,841 INFO L82 PathProgramCache]: Analyzing trace with hash 2119292358, now seen corresponding path program 22 times [2021-07-13 18:56:39,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:39,841 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761915292] [2021-07-13 18:56:39,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:40,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:40,212 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:40,212 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761915292] [2021-07-13 18:56:40,212 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761915292] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:40,212 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:40,212 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-13 18:56:40,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007300936] [2021-07-13 18:56:40,213 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-13 18:56:40,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:40,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-13 18:56:40,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-07-13 18:56:40,213 INFO L87 Difference]: Start difference. First operand 8083 states and 21483 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:40,960 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2021-07-13 18:56:41,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:41,466 INFO L93 Difference]: Finished difference Result 9579 states and 24648 transitions. [2021-07-13 18:56:41,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-13 18:56:41,467 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:56:41,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:41,484 INFO L225 Difference]: With dead ends: 9579 [2021-07-13 18:56:41,484 INFO L226 Difference]: Without dead ends: 9579 [2021-07-13 18:56:41,485 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1061.3ms TimeCoverageRelationStatistics Valid=349, Invalid=911, Unknown=0, NotChecked=0, Total=1260 [2021-07-13 18:56:41,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9579 states. [2021-07-13 18:56:41,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9579 to 8068. [2021-07-13 18:56:41,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8068 states, 8066 states have (on average 2.6619142077857676) internal successors, (21471), 8067 states have internal predecessors, (21471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:41,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8068 states to 8068 states and 21471 transitions. [2021-07-13 18:56:41,646 INFO L78 Accepts]: Start accepts. Automaton has 8068 states and 21471 transitions. Word has length 114 [2021-07-13 18:56:41,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:41,647 INFO L482 AbstractCegarLoop]: Abstraction has 8068 states and 21471 transitions. [2021-07-13 18:56:41,647 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:41,647 INFO L276 IsEmpty]: Start isEmpty. Operand 8068 states and 21471 transitions. [2021-07-13 18:56:41,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:56:41,658 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:41,658 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:41,658 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-07-13 18:56:41,658 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:41,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:41,659 INFO L82 PathProgramCache]: Analyzing trace with hash 240129774, now seen corresponding path program 23 times [2021-07-13 18:56:41,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:41,659 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930013191] [2021-07-13 18:56:41,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:41,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:42,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:42,103 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:42,103 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930013191] [2021-07-13 18:56:42,103 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930013191] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:42,103 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:42,103 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:42,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891630743] [2021-07-13 18:56:42,103 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:42,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:42,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:42,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:42,104 INFO L87 Difference]: Start difference. First operand 8068 states and 21471 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:42,880 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:56:43,061 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:56:43,241 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:56:43,443 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:56:43,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:43,619 INFO L93 Difference]: Finished difference Result 18483 states and 48831 transitions. [2021-07-13 18:56:43,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:56:43,620 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:56:43,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:43,650 INFO L225 Difference]: With dead ends: 18483 [2021-07-13 18:56:43,651 INFO L226 Difference]: Without dead ends: 18483 [2021-07-13 18:56:43,651 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1418.7ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:56:43,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18483 states. [2021-07-13 18:56:43,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18483 to 8188. [2021-07-13 18:56:43,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8188 states, 8186 states have (on average 2.665404348888346) internal successors, (21819), 8187 states have internal predecessors, (21819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:43,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8188 states to 8188 states and 21819 transitions. [2021-07-13 18:56:43,868 INFO L78 Accepts]: Start accepts. Automaton has 8188 states and 21819 transitions. Word has length 114 [2021-07-13 18:56:43,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:43,869 INFO L482 AbstractCegarLoop]: Abstraction has 8188 states and 21819 transitions. [2021-07-13 18:56:43,869 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:43,869 INFO L276 IsEmpty]: Start isEmpty. Operand 8188 states and 21819 transitions. [2021-07-13 18:56:43,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:56:43,880 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:43,881 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:43,881 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-07-13 18:56:43,881 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:43,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:43,881 INFO L82 PathProgramCache]: Analyzing trace with hash -1845249172, now seen corresponding path program 24 times [2021-07-13 18:56:43,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:43,881 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398445731] [2021-07-13 18:56:43,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:43,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:44,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:44,342 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:44,342 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398445731] [2021-07-13 18:56:44,342 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398445731] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:44,342 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:44,342 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:44,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676400910] [2021-07-13 18:56:44,342 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:44,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:44,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:44,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:44,343 INFO L87 Difference]: Start difference. First operand 8188 states and 21819 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:45,195 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:56:45,375 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:56:45,568 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 18:56:45,765 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 18:56:45,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:45,943 INFO L93 Difference]: Finished difference Result 17809 states and 46489 transitions. [2021-07-13 18:56:45,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:56:45,944 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:56:45,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:45,976 INFO L225 Difference]: With dead ends: 17809 [2021-07-13 18:56:45,976 INFO L226 Difference]: Without dead ends: 17809 [2021-07-13 18:56:45,976 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1490.8ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:56:46,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17809 states. [2021-07-13 18:56:46,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17809 to 8158. [2021-07-13 18:56:46,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8158 states, 8156 states have (on average 2.664541441883276) internal successors, (21732), 8157 states have internal predecessors, (21732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:46,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8158 states to 8158 states and 21732 transitions. [2021-07-13 18:56:46,190 INFO L78 Accepts]: Start accepts. Automaton has 8158 states and 21732 transitions. Word has length 114 [2021-07-13 18:56:46,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:46,190 INFO L482 AbstractCegarLoop]: Abstraction has 8158 states and 21732 transitions. [2021-07-13 18:56:46,191 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:46,191 INFO L276 IsEmpty]: Start isEmpty. Operand 8158 states and 21732 transitions. [2021-07-13 18:56:46,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:56:46,201 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:46,202 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:46,202 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-07-13 18:56:46,202 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:46,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:46,202 INFO L82 PathProgramCache]: Analyzing trace with hash 810604750, now seen corresponding path program 25 times [2021-07-13 18:56:46,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:46,203 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981588934] [2021-07-13 18:56:46,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:46,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:46,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:46,636 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:46,636 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981588934] [2021-07-13 18:56:46,637 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981588934] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:46,637 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:46,637 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:46,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824990816] [2021-07-13 18:56:46,637 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:46,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:46,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:46,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:46,639 INFO L87 Difference]: Start difference. First operand 8158 states and 21732 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:47,565 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:56:47,732 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 18:56:47,930 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:56:48,133 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:56:48,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:48,288 INFO L93 Difference]: Finished difference Result 17863 states and 46765 transitions. [2021-07-13 18:56:48,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:56:48,288 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:56:48,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:48,319 INFO L225 Difference]: With dead ends: 17863 [2021-07-13 18:56:48,319 INFO L226 Difference]: Without dead ends: 17863 [2021-07-13 18:56:48,319 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1527.5ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:56:48,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17863 states. [2021-07-13 18:56:48,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17863 to 8098. [2021-07-13 18:56:48,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8098 states, 8096 states have (on average 2.662796442687747) internal successors, (21558), 8097 states have internal predecessors, (21558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:48,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8098 states to 8098 states and 21558 transitions. [2021-07-13 18:56:48,552 INFO L78 Accepts]: Start accepts. Automaton has 8098 states and 21558 transitions. Word has length 114 [2021-07-13 18:56:48,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:48,552 INFO L482 AbstractCegarLoop]: Abstraction has 8098 states and 21558 transitions. [2021-07-13 18:56:48,552 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:48,552 INFO L276 IsEmpty]: Start isEmpty. Operand 8098 states and 21558 transitions. [2021-07-13 18:56:48,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:56:48,563 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:48,563 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:48,564 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-07-13 18:56:48,564 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:48,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:48,564 INFO L82 PathProgramCache]: Analyzing trace with hash 431787436, now seen corresponding path program 26 times [2021-07-13 18:56:48,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:48,564 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534145600] [2021-07-13 18:56:48,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:48,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:48,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:48,988 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:48,988 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534145600] [2021-07-13 18:56:48,988 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534145600] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:48,988 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:48,988 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:48,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341757484] [2021-07-13 18:56:48,989 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:48,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:48,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:48,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:48,989 INFO L87 Difference]: Start difference. First operand 8098 states and 21558 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:49,767 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-13 18:56:49,914 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 18:56:50,170 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:56:50,374 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:56:50,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:50,520 INFO L93 Difference]: Finished difference Result 13688 states and 36021 transitions. [2021-07-13 18:56:50,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:56:50,521 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:56:50,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:50,546 INFO L225 Difference]: With dead ends: 13688 [2021-07-13 18:56:50,546 INFO L226 Difference]: Without dead ends: 13688 [2021-07-13 18:56:50,548 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1381.6ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:56:50,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13688 states. [2021-07-13 18:56:50,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13688 to 8068. [2021-07-13 18:56:50,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8068 states, 8066 states have (on average 2.6619142077857676) internal successors, (21471), 8067 states have internal predecessors, (21471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:50,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8068 states to 8068 states and 21471 transitions. [2021-07-13 18:56:50,726 INFO L78 Accepts]: Start accepts. Automaton has 8068 states and 21471 transitions. Word has length 114 [2021-07-13 18:56:50,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:50,726 INFO L482 AbstractCegarLoop]: Abstraction has 8068 states and 21471 transitions. [2021-07-13 18:56:50,726 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:50,726 INFO L276 IsEmpty]: Start isEmpty. Operand 8068 states and 21471 transitions. [2021-07-13 18:56:50,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:56:50,737 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:50,737 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:50,737 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-07-13 18:56:50,737 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:50,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:50,738 INFO L82 PathProgramCache]: Analyzing trace with hash -165772534, now seen corresponding path program 27 times [2021-07-13 18:56:50,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:50,738 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524419356] [2021-07-13 18:56:50,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:50,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:51,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:51,215 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:51,215 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524419356] [2021-07-13 18:56:51,215 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524419356] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:51,215 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:51,215 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:51,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946161151] [2021-07-13 18:56:51,215 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:51,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:51,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:51,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:51,216 INFO L87 Difference]: Start difference. First operand 8068 states and 21471 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:52,085 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:56:52,269 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:56:52,450 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:56:52,655 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:56:52,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:52,858 INFO L93 Difference]: Finished difference Result 16219 states and 42568 transitions. [2021-07-13 18:56:52,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:56:52,858 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:56:52,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:52,886 INFO L225 Difference]: With dead ends: 16219 [2021-07-13 18:56:52,886 INFO L226 Difference]: Without dead ends: 16219 [2021-07-13 18:56:52,886 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1515.3ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:56:52,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16219 states. [2021-07-13 18:56:53,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16219 to 8138. [2021-07-13 18:56:53,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8138 states, 8136 states have (on average 2.6642084562438546) internal successors, (21676), 8137 states have internal predecessors, (21676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:53,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8138 states to 8138 states and 21676 transitions. [2021-07-13 18:56:53,091 INFO L78 Accepts]: Start accepts. Automaton has 8138 states and 21676 transitions. Word has length 114 [2021-07-13 18:56:53,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:53,091 INFO L482 AbstractCegarLoop]: Abstraction has 8138 states and 21676 transitions. [2021-07-13 18:56:53,092 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:53,092 INFO L276 IsEmpty]: Start isEmpty. Operand 8138 states and 21676 transitions. [2021-07-13 18:56:53,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:56:53,102 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:53,103 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:53,103 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-07-13 18:56:53,103 INFO L430 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:53,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:53,103 INFO L82 PathProgramCache]: Analyzing trace with hash 2043815816, now seen corresponding path program 28 times [2021-07-13 18:56:53,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:53,103 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910378630] [2021-07-13 18:56:53,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:53,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:53,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:53,537 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:53,537 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910378630] [2021-07-13 18:56:53,537 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910378630] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:53,537 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:53,538 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:53,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52264369] [2021-07-13 18:56:53,538 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:53,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:53,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:53,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:53,539 INFO L87 Difference]: Start difference. First operand 8138 states and 21676 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:54,324 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:56:54,506 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:56:54,701 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 18:56:54,907 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 18:56:55,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:55,091 INFO L93 Difference]: Finished difference Result 15545 states and 40226 transitions. [2021-07-13 18:56:55,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:56:55,091 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:56:55,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:55,118 INFO L225 Difference]: With dead ends: 15545 [2021-07-13 18:56:55,118 INFO L226 Difference]: Without dead ends: 15545 [2021-07-13 18:56:55,119 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1414.5ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:56:55,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15545 states. [2021-07-13 18:56:55,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15545 to 7996. [2021-07-13 18:56:55,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7996 states, 7994 states have (on average 2.660370277708281) internal successors, (21267), 7995 states have internal predecessors, (21267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:55,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7996 states to 7996 states and 21267 transitions. [2021-07-13 18:56:55,324 INFO L78 Accepts]: Start accepts. Automaton has 7996 states and 21267 transitions. Word has length 114 [2021-07-13 18:56:55,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:55,324 INFO L482 AbstractCegarLoop]: Abstraction has 7996 states and 21267 transitions. [2021-07-13 18:56:55,324 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:55,324 INFO L276 IsEmpty]: Start isEmpty. Operand 7996 states and 21267 transitions. [2021-07-13 18:56:55,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:56:55,335 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:55,335 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:55,335 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-07-13 18:56:55,335 INFO L430 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:55,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:55,336 INFO L82 PathProgramCache]: Analyzing trace with hash 404702442, now seen corresponding path program 29 times [2021-07-13 18:56:55,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:55,336 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551848536] [2021-07-13 18:56:55,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:55,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:55,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:55,799 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:55,799 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551848536] [2021-07-13 18:56:55,799 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551848536] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:55,800 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:55,800 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:55,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642607174] [2021-07-13 18:56:55,800 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:55,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:55,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:55,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:55,801 INFO L87 Difference]: Start difference. First operand 7996 states and 21267 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:56,655 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:56:56,808 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 18:56:57,005 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:56:57,210 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:56:57,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:57,370 INFO L93 Difference]: Finished difference Result 15599 states and 40502 transitions. [2021-07-13 18:56:57,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:56:57,371 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:56:57,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:57,400 INFO L225 Difference]: With dead ends: 15599 [2021-07-13 18:56:57,401 INFO L226 Difference]: Without dead ends: 15599 [2021-07-13 18:56:57,401 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1498.5ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:56:57,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15599 states. [2021-07-13 18:56:57,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15599 to 7936. [2021-07-13 18:56:57,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7936 states, 7934 states have (on average 2.6585581043609783) internal successors, (21093), 7935 states have internal predecessors, (21093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:57,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7936 states to 7936 states and 21093 transitions. [2021-07-13 18:56:57,591 INFO L78 Accepts]: Start accepts. Automaton has 7936 states and 21093 transitions. Word has length 114 [2021-07-13 18:56:57,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:57,591 INFO L482 AbstractCegarLoop]: Abstraction has 7936 states and 21093 transitions. [2021-07-13 18:56:57,591 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:57,592 INFO L276 IsEmpty]: Start isEmpty. Operand 7936 states and 21093 transitions. [2021-07-13 18:56:57,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:56:57,602 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:57,603 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:57,603 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-07-13 18:56:57,603 INFO L430 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:57,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:57,603 INFO L82 PathProgramCache]: Analyzing trace with hash 25885128, now seen corresponding path program 30 times [2021-07-13 18:56:57,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:57,603 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080206714] [2021-07-13 18:56:57,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:57,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:58,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:58,055 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:58,055 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080206714] [2021-07-13 18:56:58,055 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080206714] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:58,055 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:58,055 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:56:58,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884193017] [2021-07-13 18:56:58,056 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:56:58,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:58,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:56:58,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:56:58,056 INFO L87 Difference]: Start difference. First operand 7936 states and 21093 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:58,837 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-13 18:56:58,987 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 18:56:59,190 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:56:59,396 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:56:59,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:59,569 INFO L93 Difference]: Finished difference Result 15915 states and 41412 transitions. [2021-07-13 18:56:59,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:56:59,569 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:56:59,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:59,597 INFO L225 Difference]: With dead ends: 15915 [2021-07-13 18:56:59,597 INFO L226 Difference]: Without dead ends: 15915 [2021-07-13 18:56:59,597 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1367.5ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:56:59,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15915 states. [2021-07-13 18:56:59,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15915 to 7906. [2021-07-13 18:56:59,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7906 states, 7904 states have (on average 2.6576417004048585) internal successors, (21006), 7905 states have internal predecessors, (21006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:59,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7906 states to 7906 states and 21006 transitions. [2021-07-13 18:56:59,772 INFO L78 Accepts]: Start accepts. Automaton has 7906 states and 21006 transitions. Word has length 114 [2021-07-13 18:56:59,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:59,772 INFO L482 AbstractCegarLoop]: Abstraction has 7906 states and 21006 transitions. [2021-07-13 18:56:59,772 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:59,773 INFO L276 IsEmpty]: Start isEmpty. Operand 7906 states and 21006 transitions. [2021-07-13 18:56:59,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:56:59,783 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:59,783 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:59,783 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-07-13 18:56:59,783 INFO L430 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:59,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:59,783 INFO L82 PathProgramCache]: Analyzing trace with hash 366129486, now seen corresponding path program 31 times [2021-07-13 18:56:59,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:59,783 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336463029] [2021-07-13 18:56:59,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:59,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:00,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:00,231 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:00,231 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336463029] [2021-07-13 18:57:00,231 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336463029] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:00,231 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:00,231 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:57:00,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683780510] [2021-07-13 18:57:00,231 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:57:00,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:00,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:57:00,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:57:00,232 INFO L87 Difference]: Start difference. First operand 7906 states and 21006 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:01,013 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-13 18:57:01,173 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 18:57:01,372 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:57:01,574 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:57:01,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:01,710 INFO L93 Difference]: Finished difference Result 11341 states and 29538 transitions. [2021-07-13 18:57:01,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:57:01,711 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:57:01,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:01,728 INFO L225 Difference]: With dead ends: 11341 [2021-07-13 18:57:01,728 INFO L226 Difference]: Without dead ends: 11341 [2021-07-13 18:57:01,728 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1438.6ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:57:01,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11341 states. [2021-07-13 18:57:01,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11341 to 7306. [2021-07-13 18:57:01,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7306 states, 7304 states have (on average 2.6521084337349397) internal successors, (19371), 7305 states have internal predecessors, (19371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:01,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7306 states to 7306 states and 19371 transitions. [2021-07-13 18:57:01,867 INFO L78 Accepts]: Start accepts. Automaton has 7306 states and 19371 transitions. Word has length 114 [2021-07-13 18:57:01,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:01,868 INFO L482 AbstractCegarLoop]: Abstraction has 7306 states and 19371 transitions. [2021-07-13 18:57:01,868 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:01,868 INFO L276 IsEmpty]: Start isEmpty. Operand 7306 states and 19371 transitions. [2021-07-13 18:57:01,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:57:01,878 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:01,878 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:01,878 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-07-13 18:57:01,878 INFO L430 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:01,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:01,878 INFO L82 PathProgramCache]: Analyzing trace with hash 718495150, now seen corresponding path program 32 times [2021-07-13 18:57:01,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:01,879 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287150523] [2021-07-13 18:57:01,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:01,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:02,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:02,287 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:02,287 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287150523] [2021-07-13 18:57:02,287 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287150523] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:02,288 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:02,288 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:57:02,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868534280] [2021-07-13 18:57:02,288 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:57:02,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:02,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:57:02,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:57:02,289 INFO L87 Difference]: Start difference. First operand 7306 states and 19371 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:03,127 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:57:03,299 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:57:03,471 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:57:03,669 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:57:03,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:03,825 INFO L93 Difference]: Finished difference Result 17786 states and 47226 transitions. [2021-07-13 18:57:03,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:57:03,825 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:57:03,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:03,855 INFO L225 Difference]: With dead ends: 17786 [2021-07-13 18:57:03,855 INFO L226 Difference]: Without dead ends: 17786 [2021-07-13 18:57:03,856 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1448.4ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:57:03,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17786 states. [2021-07-13 18:57:04,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17786 to 7498. [2021-07-13 18:57:04,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7498 states, 7496 states have (on average 2.6586179295624333) internal successors, (19929), 7497 states have internal predecessors, (19929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:04,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7498 states to 7498 states and 19929 transitions. [2021-07-13 18:57:04,056 INFO L78 Accepts]: Start accepts. Automaton has 7498 states and 19929 transitions. Word has length 114 [2021-07-13 18:57:04,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:04,057 INFO L482 AbstractCegarLoop]: Abstraction has 7498 states and 19929 transitions. [2021-07-13 18:57:04,057 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:04,057 INFO L276 IsEmpty]: Start isEmpty. Operand 7498 states and 19929 transitions. [2021-07-13 18:57:04,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:57:04,068 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:04,068 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:04,068 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-07-13 18:57:04,068 INFO L430 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:04,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:04,068 INFO L82 PathProgramCache]: Analyzing trace with hash -1366883796, now seen corresponding path program 33 times [2021-07-13 18:57:04,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:04,069 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512373613] [2021-07-13 18:57:04,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:04,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:04,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:04,478 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:04,478 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512373613] [2021-07-13 18:57:04,478 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512373613] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:04,478 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:04,478 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:57:04,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365372784] [2021-07-13 18:57:04,478 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:57:04,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:04,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:57:04,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:57:04,479 INFO L87 Difference]: Start difference. First operand 7498 states and 19929 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:05,325 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:57:05,495 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:57:05,682 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 18:57:05,903 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 18:57:06,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:06,059 INFO L93 Difference]: Finished difference Result 17364 states and 45712 transitions. [2021-07-13 18:57:06,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:57:06,059 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:57:06,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:06,087 INFO L225 Difference]: With dead ends: 17364 [2021-07-13 18:57:06,087 INFO L226 Difference]: Without dead ends: 17364 [2021-07-13 18:57:06,087 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1480.4ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:57:06,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17364 states. [2021-07-13 18:57:06,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17364 to 7498. [2021-07-13 18:57:06,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7498 states, 7496 states have (on average 2.6562166488794023) internal successors, (19911), 7497 states have internal predecessors, (19911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:06,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7498 states to 7498 states and 19911 transitions. [2021-07-13 18:57:06,273 INFO L78 Accepts]: Start accepts. Automaton has 7498 states and 19911 transitions. Word has length 114 [2021-07-13 18:57:06,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:06,273 INFO L482 AbstractCegarLoop]: Abstraction has 7498 states and 19911 transitions. [2021-07-13 18:57:06,273 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:06,273 INFO L276 IsEmpty]: Start isEmpty. Operand 7498 states and 19911 transitions. [2021-07-13 18:57:06,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:57:06,283 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:06,283 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:06,283 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-07-13 18:57:06,283 INFO L430 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:06,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:06,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1288970126, now seen corresponding path program 34 times [2021-07-13 18:57:06,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:06,284 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270837581] [2021-07-13 18:57:06,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:06,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:06,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:06,651 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:06,651 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270837581] [2021-07-13 18:57:06,651 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270837581] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:06,651 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:06,651 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:57:06,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336895214] [2021-07-13 18:57:06,651 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:57:06,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:06,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:57:06,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:57:06,652 INFO L87 Difference]: Start difference. First operand 7498 states and 19911 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:07,426 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:57:07,585 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 18:57:07,774 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:57:07,974 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:57:08,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:08,132 INFO L93 Difference]: Finished difference Result 14842 states and 39205 transitions. [2021-07-13 18:57:08,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:57:08,132 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:57:08,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:08,157 INFO L225 Difference]: With dead ends: 14842 [2021-07-13 18:57:08,157 INFO L226 Difference]: Without dead ends: 14842 [2021-07-13 18:57:08,157 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1345.8ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:57:08,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14842 states. [2021-07-13 18:57:08,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14842 to 7470. [2021-07-13 18:57:08,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7470 states, 7468 states have (on average 2.655195500803428) internal successors, (19829), 7469 states have internal predecessors, (19829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:08,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7470 states to 7470 states and 19829 transitions. [2021-07-13 18:57:08,367 INFO L78 Accepts]: Start accepts. Automaton has 7470 states and 19829 transitions. Word has length 114 [2021-07-13 18:57:08,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:08,368 INFO L482 AbstractCegarLoop]: Abstraction has 7470 states and 19829 transitions. [2021-07-13 18:57:08,368 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:08,368 INFO L276 IsEmpty]: Start isEmpty. Operand 7470 states and 19829 transitions. [2021-07-13 18:57:08,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:57:08,378 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:08,378 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:08,378 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-07-13 18:57:08,378 INFO L430 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:08,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:08,379 INFO L82 PathProgramCache]: Analyzing trace with hash 1587370800, now seen corresponding path program 35 times [2021-07-13 18:57:08,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:08,379 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881425487] [2021-07-13 18:57:08,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:08,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:08,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:08,746 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:08,746 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881425487] [2021-07-13 18:57:08,746 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881425487] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:08,746 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:08,746 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:57:08,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217088860] [2021-07-13 18:57:08,746 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:57:08,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:08,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:57:08,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:57:08,747 INFO L87 Difference]: Start difference. First operand 7470 states and 19829 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:09,533 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 18:57:09,690 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:57:09,864 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:57:10,062 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:57:10,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:10,235 INFO L93 Difference]: Finished difference Result 18404 states and 48253 transitions. [2021-07-13 18:57:10,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:57:10,236 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:57:10,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:10,267 INFO L225 Difference]: With dead ends: 18404 [2021-07-13 18:57:10,268 INFO L226 Difference]: Without dead ends: 18404 [2021-07-13 18:57:10,268 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1360.3ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:57:10,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18404 states. [2021-07-13 18:57:10,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18404 to 7502. [2021-07-13 18:57:10,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7502 states, 7500 states have (on average 2.6561333333333335) internal successors, (19921), 7501 states have internal predecessors, (19921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:10,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7502 states to 7502 states and 19921 transitions. [2021-07-13 18:57:10,476 INFO L78 Accepts]: Start accepts. Automaton has 7502 states and 19921 transitions. Word has length 114 [2021-07-13 18:57:10,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:10,476 INFO L482 AbstractCegarLoop]: Abstraction has 7502 states and 19921 transitions. [2021-07-13 18:57:10,476 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:10,477 INFO L276 IsEmpty]: Start isEmpty. Operand 7502 states and 19921 transitions. [2021-07-13 18:57:10,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:57:10,534 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:10,534 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:10,535 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-07-13 18:57:10,535 INFO L430 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:10,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:10,535 INFO L82 PathProgramCache]: Analyzing trace with hash -498008146, now seen corresponding path program 36 times [2021-07-13 18:57:10,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:10,535 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099898999] [2021-07-13 18:57:10,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:10,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:10,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:10,879 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:10,879 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099898999] [2021-07-13 18:57:10,880 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099898999] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:10,880 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:10,880 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:57:10,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957316429] [2021-07-13 18:57:10,880 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:57:10,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:10,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:57:10,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:57:10,881 INFO L87 Difference]: Start difference. First operand 7502 states and 19921 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:11,676 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 18:57:11,835 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:57:12,028 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 18:57:12,222 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 18:57:12,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:12,411 INFO L93 Difference]: Finished difference Result 19217 states and 50057 transitions. [2021-07-13 18:57:12,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:57:12,411 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:57:12,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:12,443 INFO L225 Difference]: With dead ends: 19217 [2021-07-13 18:57:12,443 INFO L226 Difference]: Without dead ends: 19217 [2021-07-13 18:57:12,444 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1344.1ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:57:12,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19217 states. [2021-07-13 18:57:12,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19217 to 7486. [2021-07-13 18:57:12,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7486 states, 7484 states have (on average 2.6556654195617315) internal successors, (19875), 7485 states have internal predecessors, (19875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:12,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7486 states to 7486 states and 19875 transitions. [2021-07-13 18:57:12,654 INFO L78 Accepts]: Start accepts. Automaton has 7486 states and 19875 transitions. Word has length 114 [2021-07-13 18:57:12,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:12,654 INFO L482 AbstractCegarLoop]: Abstraction has 7486 states and 19875 transitions. [2021-07-13 18:57:12,655 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:12,655 INFO L276 IsEmpty]: Start isEmpty. Operand 7486 states and 19875 transitions. [2021-07-13 18:57:12,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:57:12,665 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:12,665 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:12,665 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-07-13 18:57:12,665 INFO L430 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:12,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:12,666 INFO L82 PathProgramCache]: Analyzing trace with hash -772232944, now seen corresponding path program 37 times [2021-07-13 18:57:12,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:12,666 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843033126] [2021-07-13 18:57:12,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:12,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:13,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:13,108 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:13,108 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843033126] [2021-07-13 18:57:13,108 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843033126] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:13,108 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:13,108 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:57:13,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565746133] [2021-07-13 18:57:13,109 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:57:13,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:13,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:57:13,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:57:13,109 INFO L87 Difference]: Start difference. First operand 7486 states and 19875 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:13,944 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 18:57:14,102 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:57:14,285 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 18:57:14,480 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 18:57:14,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:14,649 INFO L93 Difference]: Finished difference Result 18543 states and 48470 transitions. [2021-07-13 18:57:14,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:57:14,649 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:57:14,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:14,681 INFO L225 Difference]: With dead ends: 18543 [2021-07-13 18:57:14,681 INFO L226 Difference]: Without dead ends: 18543 [2021-07-13 18:57:14,682 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1481.5ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:57:14,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18543 states. [2021-07-13 18:57:14,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18543 to 7502. [2021-07-13 18:57:14,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7502 states, 7500 states have (on average 2.6561333333333335) internal successors, (19921), 7501 states have internal predecessors, (19921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:14,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7502 states to 7502 states and 19921 transitions. [2021-07-13 18:57:14,919 INFO L78 Accepts]: Start accepts. Automaton has 7502 states and 19921 transitions. Word has length 114 [2021-07-13 18:57:14,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:14,919 INFO L482 AbstractCegarLoop]: Abstraction has 7502 states and 19921 transitions. [2021-07-13 18:57:14,919 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:14,919 INFO L276 IsEmpty]: Start isEmpty. Operand 7502 states and 19921 transitions. [2021-07-13 18:57:14,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:57:14,929 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:14,929 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:14,929 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-07-13 18:57:14,929 INFO L430 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:14,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:14,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1020779924, now seen corresponding path program 38 times [2021-07-13 18:57:14,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:14,930 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10903896] [2021-07-13 18:57:14,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:14,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:15,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:15,264 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:15,264 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10903896] [2021-07-13 18:57:15,264 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10903896] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:15,264 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:15,264 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:57:15,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116960754] [2021-07-13 18:57:15,265 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:57:15,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:15,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:57:15,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:57:15,266 INFO L87 Difference]: Start difference. First operand 7502 states and 19921 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:16,088 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 18:57:16,249 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:57:16,426 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:57:16,629 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:57:16,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:16,782 INFO L93 Difference]: Finished difference Result 15608 states and 40996 transitions. [2021-07-13 18:57:16,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:57:16,783 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:57:16,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:16,809 INFO L225 Difference]: With dead ends: 15608 [2021-07-13 18:57:16,809 INFO L226 Difference]: Without dead ends: 15608 [2021-07-13 18:57:16,809 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1329.4ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:57:16,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15608 states. [2021-07-13 18:57:16,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15608 to 7458. [2021-07-13 18:57:16,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7458 states, 7456 states have (on average 2.653835836909871) internal successors, (19787), 7457 states have internal predecessors, (19787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:17,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7458 states to 7458 states and 19787 transitions. [2021-07-13 18:57:17,009 INFO L78 Accepts]: Start accepts. Automaton has 7458 states and 19787 transitions. Word has length 114 [2021-07-13 18:57:17,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:17,009 INFO L482 AbstractCegarLoop]: Abstraction has 7458 states and 19787 transitions. [2021-07-13 18:57:17,009 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:17,009 INFO L276 IsEmpty]: Start isEmpty. Operand 7458 states and 19787 transitions. [2021-07-13 18:57:17,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:57:17,019 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:17,019 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:17,019 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-07-13 18:57:17,019 INFO L430 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:17,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:17,020 INFO L82 PathProgramCache]: Analyzing trace with hash -140431474, now seen corresponding path program 39 times [2021-07-13 18:57:17,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:17,020 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077438726] [2021-07-13 18:57:17,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:17,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:17,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:17,349 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:17,350 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077438726] [2021-07-13 18:57:17,350 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077438726] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:17,350 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:17,350 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:57:17,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213258951] [2021-07-13 18:57:17,350 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:57:17,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:17,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:57:17,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:57:17,351 INFO L87 Difference]: Start difference. First operand 7458 states and 19787 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:18,174 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 18:57:18,335 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:57:18,566 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:57:18,764 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:57:18,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:18,916 INFO L93 Difference]: Finished difference Result 14164 states and 37423 transitions. [2021-07-13 18:57:18,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:57:18,916 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:57:18,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:18,938 INFO L225 Difference]: With dead ends: 14164 [2021-07-13 18:57:18,938 INFO L226 Difference]: Without dead ends: 14164 [2021-07-13 18:57:18,939 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1397.2ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:57:18,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14164 states. [2021-07-13 18:57:19,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14164 to 7518. [2021-07-13 18:57:19,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7518 states, 7516 states have (on average 2.6558009579563597) internal successors, (19961), 7517 states have internal predecessors, (19961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:19,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7518 states to 7518 states and 19961 transitions. [2021-07-13 18:57:19,142 INFO L78 Accepts]: Start accepts. Automaton has 7518 states and 19961 transitions. Word has length 114 [2021-07-13 18:57:19,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:19,142 INFO L482 AbstractCegarLoop]: Abstraction has 7518 states and 19961 transitions. [2021-07-13 18:57:19,142 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:19,142 INFO L276 IsEmpty]: Start isEmpty. Operand 7518 states and 19961 transitions. [2021-07-13 18:57:19,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:57:19,153 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:19,153 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:19,153 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-07-13 18:57:19,153 INFO L430 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:19,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:19,153 INFO L82 PathProgramCache]: Analyzing trace with hash 2069156876, now seen corresponding path program 40 times [2021-07-13 18:57:19,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:19,153 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857102811] [2021-07-13 18:57:19,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:19,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:19,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:19,507 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:19,507 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857102811] [2021-07-13 18:57:19,507 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857102811] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:19,508 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:19,508 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:57:19,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743445157] [2021-07-13 18:57:19,508 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:57:19,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:19,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:57:19,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:57:19,509 INFO L87 Difference]: Start difference. First operand 7518 states and 19961 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:20,300 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 18:57:20,458 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:57:20,648 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 18:57:20,869 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 18:57:21,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:21,032 INFO L93 Difference]: Finished difference Result 14977 states and 39227 transitions. [2021-07-13 18:57:21,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:57:21,032 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:57:21,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:21,057 INFO L225 Difference]: With dead ends: 14977 [2021-07-13 18:57:21,057 INFO L226 Difference]: Without dead ends: 14977 [2021-07-13 18:57:21,058 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1364.2ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:57:21,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14977 states. [2021-07-13 18:57:21,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14977 to 7502. [2021-07-13 18:57:21,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7502 states, 7500 states have (on average 2.6553333333333335) internal successors, (19915), 7501 states have internal predecessors, (19915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:21,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7502 states to 7502 states and 19915 transitions. [2021-07-13 18:57:21,271 INFO L78 Accepts]: Start accepts. Automaton has 7502 states and 19915 transitions. Word has length 114 [2021-07-13 18:57:21,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:21,272 INFO L482 AbstractCegarLoop]: Abstraction has 7502 states and 19915 transitions. [2021-07-13 18:57:21,272 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:21,272 INFO L276 IsEmpty]: Start isEmpty. Operand 7502 states and 19915 transitions. [2021-07-13 18:57:21,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:57:21,285 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:21,285 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:21,286 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-07-13 18:57:21,286 INFO L430 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:21,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:21,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1794932078, now seen corresponding path program 41 times [2021-07-13 18:57:21,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:21,286 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690103166] [2021-07-13 18:57:21,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:21,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:21,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:21,615 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:21,615 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690103166] [2021-07-13 18:57:21,615 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690103166] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:21,616 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:21,616 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:57:21,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724434523] [2021-07-13 18:57:21,616 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:57:21,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:21,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:57:21,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:57:21,616 INFO L87 Difference]: Start difference. First operand 7502 states and 19915 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:22,368 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 18:57:22,523 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:57:22,702 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 18:57:22,891 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 18:57:23,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:23,041 INFO L93 Difference]: Finished difference Result 18090 states and 47177 transitions. [2021-07-13 18:57:23,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:57:23,042 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:57:23,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:23,067 INFO L225 Difference]: With dead ends: 18090 [2021-07-13 18:57:23,067 INFO L226 Difference]: Without dead ends: 18090 [2021-07-13 18:57:23,067 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1312.7ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:57:23,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18090 states. [2021-07-13 18:57:23,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18090 to 7518. [2021-07-13 18:57:23,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7518 states, 7516 states have (on average 2.6558009579563597) internal successors, (19961), 7517 states have internal predecessors, (19961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:23,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7518 states to 7518 states and 19961 transitions. [2021-07-13 18:57:23,258 INFO L78 Accepts]: Start accepts. Automaton has 7518 states and 19961 transitions. Word has length 114 [2021-07-13 18:57:23,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:23,258 INFO L482 AbstractCegarLoop]: Abstraction has 7518 states and 19961 transitions. [2021-07-13 18:57:23,258 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:23,259 INFO L276 IsEmpty]: Start isEmpty. Operand 7518 states and 19961 transitions. [2021-07-13 18:57:23,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:57:23,266 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:23,266 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:23,267 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-07-13 18:57:23,267 INFO L430 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:23,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:23,267 INFO L82 PathProgramCache]: Analyzing trace with hash 1546385098, now seen corresponding path program 42 times [2021-07-13 18:57:23,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:23,267 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295289135] [2021-07-13 18:57:23,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:23,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:23,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:23,585 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:23,585 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295289135] [2021-07-13 18:57:23,585 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295289135] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:23,585 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:23,585 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:57:23,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802270498] [2021-07-13 18:57:23,585 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:57:23,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:23,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:57:23,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:57:23,586 INFO L87 Difference]: Start difference. First operand 7518 states and 19961 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:24,354 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 18:57:24,512 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:57:24,683 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:57:24,877 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:57:25,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:25,020 INFO L93 Difference]: Finished difference Result 15155 states and 39703 transitions. [2021-07-13 18:57:25,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:57:25,021 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:57:25,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:25,044 INFO L225 Difference]: With dead ends: 15155 [2021-07-13 18:57:25,044 INFO L226 Difference]: Without dead ends: 15155 [2021-07-13 18:57:25,044 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1290.5ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:57:25,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15155 states. [2021-07-13 18:57:25,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15155 to 7486. [2021-07-13 18:57:25,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7486 states, 7484 states have (on average 2.6548637092463925) internal successors, (19869), 7485 states have internal predecessors, (19869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:25,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7486 states to 7486 states and 19869 transitions. [2021-07-13 18:57:25,214 INFO L78 Accepts]: Start accepts. Automaton has 7486 states and 19869 transitions. Word has length 114 [2021-07-13 18:57:25,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:25,214 INFO L482 AbstractCegarLoop]: Abstraction has 7486 states and 19869 transitions. [2021-07-13 18:57:25,214 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:25,215 INFO L276 IsEmpty]: Start isEmpty. Operand 7486 states and 19869 transitions. [2021-07-13 18:57:25,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:57:25,224 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:25,225 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:25,225 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-07-13 18:57:25,225 INFO L430 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:25,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:25,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1270119412, now seen corresponding path program 43 times [2021-07-13 18:57:25,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:25,227 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671621921] [2021-07-13 18:57:25,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:25,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:25,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:25,649 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:25,649 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671621921] [2021-07-13 18:57:25,649 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671621921] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:25,649 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:25,649 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:57:25,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543148064] [2021-07-13 18:57:25,649 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:57:25,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:25,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:57:25,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:57:25,650 INFO L87 Difference]: Start difference. First operand 7486 states and 19869 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:26,401 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:57:26,567 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:57:26,748 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 18:57:26,940 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 18:57:27,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:27,083 INFO L93 Difference]: Finished difference Result 14287 states and 37594 transitions. [2021-07-13 18:57:27,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:57:27,084 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:57:27,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:27,107 INFO L225 Difference]: With dead ends: 14287 [2021-07-13 18:57:27,107 INFO L226 Difference]: Without dead ends: 14287 [2021-07-13 18:57:27,108 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1338.8ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:57:27,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14287 states. [2021-07-13 18:57:27,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14287 to 7530. [2021-07-13 18:57:27,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7530 states, 7528 states have (on average 2.6563496280552603) internal successors, (19997), 7529 states have internal predecessors, (19997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:27,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7530 states to 7530 states and 19997 transitions. [2021-07-13 18:57:27,266 INFO L78 Accepts]: Start accepts. Automaton has 7530 states and 19997 transitions. Word has length 114 [2021-07-13 18:57:27,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:27,266 INFO L482 AbstractCegarLoop]: Abstraction has 7530 states and 19997 transitions. [2021-07-13 18:57:27,266 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:27,266 INFO L276 IsEmpty]: Start isEmpty. Operand 7530 states and 19997 transitions. [2021-07-13 18:57:27,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:57:27,279 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:27,279 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:27,280 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-07-13 18:57:27,280 INFO L430 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:27,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:27,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1518666392, now seen corresponding path program 44 times [2021-07-13 18:57:27,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:27,280 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434562596] [2021-07-13 18:57:27,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:27,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:27,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:27,623 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:27,623 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434562596] [2021-07-13 18:57:27,623 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434562596] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:27,623 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:27,623 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:57:27,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495436913] [2021-07-13 18:57:27,624 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:57:27,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:27,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:57:27,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:57:27,624 INFO L87 Difference]: Start difference. First operand 7530 states and 19997 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:28,411 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:57:28,584 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:57:28,760 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:57:28,960 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:57:29,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:29,103 INFO L93 Difference]: Finished difference Result 14127 states and 37192 transitions. [2021-07-13 18:57:29,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:57:29,104 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:57:29,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:29,126 INFO L225 Difference]: With dead ends: 14127 [2021-07-13 18:57:29,127 INFO L226 Difference]: Without dead ends: 14127 [2021-07-13 18:57:29,127 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1350.1ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:57:29,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14127 states. [2021-07-13 18:57:29,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14127 to 7514. [2021-07-13 18:57:29,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7514 states, 7512 states have (on average 2.6558839190628327) internal successors, (19951), 7513 states have internal predecessors, (19951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:29,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7514 states to 7514 states and 19951 transitions. [2021-07-13 18:57:29,288 INFO L78 Accepts]: Start accepts. Automaton has 7514 states and 19951 transitions. Word has length 114 [2021-07-13 18:57:29,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:29,288 INFO L482 AbstractCegarLoop]: Abstraction has 7514 states and 19951 transitions. [2021-07-13 18:57:29,288 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:29,288 INFO L276 IsEmpty]: Start isEmpty. Operand 7514 states and 19951 transitions. [2021-07-13 18:57:29,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:57:29,298 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:29,298 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:29,298 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-07-13 18:57:29,298 INFO L430 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:29,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:29,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1619483600, now seen corresponding path program 45 times [2021-07-13 18:57:29,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:29,299 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193480336] [2021-07-13 18:57:29,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:29,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:29,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:29,643 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:29,643 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193480336] [2021-07-13 18:57:29,643 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193480336] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:29,643 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:29,643 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:57:29,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038849807] [2021-07-13 18:57:29,643 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:57:29,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:29,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:57:29,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:57:29,644 INFO L87 Difference]: Start difference. First operand 7514 states and 19951 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:30,439 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:57:30,585 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 18:57:30,768 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:57:30,965 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:57:31,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:31,112 INFO L93 Difference]: Finished difference Result 11560 states and 30646 transitions. [2021-07-13 18:57:31,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:57:31,112 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:57:31,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:31,130 INFO L225 Difference]: With dead ends: 11560 [2021-07-13 18:57:31,131 INFO L226 Difference]: Without dead ends: 11560 [2021-07-13 18:57:31,131 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1345.7ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:57:31,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11560 states. [2021-07-13 18:57:31,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11560 to 7682. [2021-07-13 18:57:31,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7682 states, 7680 states have (on average 2.661848958333333) internal successors, (20443), 7681 states have internal predecessors, (20443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:31,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7682 states to 7682 states and 20443 transitions. [2021-07-13 18:57:31,280 INFO L78 Accepts]: Start accepts. Automaton has 7682 states and 20443 transitions. Word has length 114 [2021-07-13 18:57:31,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:31,280 INFO L482 AbstractCegarLoop]: Abstraction has 7682 states and 20443 transitions. [2021-07-13 18:57:31,280 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:31,280 INFO L276 IsEmpty]: Start isEmpty. Operand 7682 states and 20443 transitions. [2021-07-13 18:57:31,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:57:31,290 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:31,290 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:31,290 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-07-13 18:57:31,290 INFO L430 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:31,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:31,291 INFO L82 PathProgramCache]: Analyzing trace with hash -371423616, now seen corresponding path program 3 times [2021-07-13 18:57:31,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:31,291 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21757146] [2021-07-13 18:57:31,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:31,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:31,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:31,893 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:31,893 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21757146] [2021-07-13 18:57:31,893 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21757146] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:31,893 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:31,894 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-07-13 18:57:31,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799959796] [2021-07-13 18:57:31,894 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-13 18:57:31,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:31,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-13 18:57:31,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=512, Unknown=0, NotChecked=0, Total=600 [2021-07-13 18:57:31,894 INFO L87 Difference]: Start difference. First operand 7682 states and 20443 transitions. Second operand has 25 states, 25 states have (on average 4.56) internal successors, (114), 25 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:36,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:36,912 INFO L93 Difference]: Finished difference Result 12739 states and 34002 transitions. [2021-07-13 18:57:36,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-07-13 18:57:36,912 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.56) internal successors, (114), 25 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:57:36,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:36,930 INFO L225 Difference]: With dead ends: 12739 [2021-07-13 18:57:36,931 INFO L226 Difference]: Without dead ends: 12739 [2021-07-13 18:57:36,931 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1739 ImplicationChecksByTransitivity, 3561.2ms TimeCoverageRelationStatistics Valid=1658, Invalid=5824, Unknown=0, NotChecked=0, Total=7482 [2021-07-13 18:57:36,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12739 states. [2021-07-13 18:57:37,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12739 to 10727. [2021-07-13 18:57:37,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10727 states, 10725 states have (on average 2.70993006993007) internal successors, (29064), 10726 states have internal predecessors, (29064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:37,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10727 states to 10727 states and 29064 transitions. [2021-07-13 18:57:37,095 INFO L78 Accepts]: Start accepts. Automaton has 10727 states and 29064 transitions. Word has length 114 [2021-07-13 18:57:37,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:37,095 INFO L482 AbstractCegarLoop]: Abstraction has 10727 states and 29064 transitions. [2021-07-13 18:57:37,096 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 4.56) internal successors, (114), 25 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:37,096 INFO L276 IsEmpty]: Start isEmpty. Operand 10727 states and 29064 transitions. [2021-07-13 18:57:37,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:57:37,110 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:37,110 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:37,110 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-07-13 18:57:37,110 INFO L430 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:37,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:37,110 INFO L82 PathProgramCache]: Analyzing trace with hash 18507512, now seen corresponding path program 46 times [2021-07-13 18:57:37,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:37,111 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060986016] [2021-07-13 18:57:37,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:37,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:37,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:37,524 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:37,524 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060986016] [2021-07-13 18:57:37,524 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060986016] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:37,524 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:37,524 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-13 18:57:37,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119846639] [2021-07-13 18:57:37,524 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-13 18:57:37,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:37,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-13 18:57:37,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-07-13 18:57:37,525 INFO L87 Difference]: Start difference. First operand 10727 states and 29064 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:38,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:38,751 INFO L93 Difference]: Finished difference Result 12471 states and 32819 transitions. [2021-07-13 18:57:38,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-13 18:57:38,752 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:57:38,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:38,773 INFO L225 Difference]: With dead ends: 12471 [2021-07-13 18:57:38,774 INFO L226 Difference]: Without dead ends: 12471 [2021-07-13 18:57:38,774 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 1055.6ms TimeCoverageRelationStatistics Valid=338, Invalid=922, Unknown=0, NotChecked=0, Total=1260 [2021-07-13 18:57:38,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12471 states. [2021-07-13 18:57:38,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12471 to 10597. [2021-07-13 18:57:38,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10597 states, 10595 states have (on average 2.714676734308636) internal successors, (28762), 10596 states have internal predecessors, (28762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:38,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10597 states to 10597 states and 28762 transitions. [2021-07-13 18:57:38,985 INFO L78 Accepts]: Start accepts. Automaton has 10597 states and 28762 transitions. Word has length 114 [2021-07-13 18:57:38,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:38,985 INFO L482 AbstractCegarLoop]: Abstraction has 10597 states and 28762 transitions. [2021-07-13 18:57:38,985 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:38,985 INFO L276 IsEmpty]: Start isEmpty. Operand 10597 states and 28762 transitions. [2021-07-13 18:57:38,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:57:38,999 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:38,999 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:38,999 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-07-13 18:57:38,999 INFO L430 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:38,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:38,999 INFO L82 PathProgramCache]: Analyzing trace with hash -119525490, now seen corresponding path program 47 times [2021-07-13 18:57:39,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:39,000 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988253167] [2021-07-13 18:57:39,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:39,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:39,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:39,432 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:39,432 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988253167] [2021-07-13 18:57:39,432 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988253167] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:39,432 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:39,432 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:57:39,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916961273] [2021-07-13 18:57:39,433 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:57:39,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:39,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:57:39,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:57:39,434 INFO L87 Difference]: Start difference. First operand 10597 states and 28762 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:40,228 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:57:40,411 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:57:40,592 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:57:40,809 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:57:41,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:41,046 INFO L93 Difference]: Finished difference Result 34714 states and 93221 transitions. [2021-07-13 18:57:41,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:57:41,047 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:57:41,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:41,114 INFO L225 Difference]: With dead ends: 34714 [2021-07-13 18:57:41,114 INFO L226 Difference]: Without dead ends: 34714 [2021-07-13 18:57:41,115 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1359.8ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:57:41,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34714 states. [2021-07-13 18:57:41,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34714 to 10765. [2021-07-13 18:57:41,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10765 states, 10763 states have (on average 2.7180154232091422) internal successors, (29254), 10764 states have internal predecessors, (29254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:41,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10765 states to 10765 states and 29254 transitions. [2021-07-13 18:57:41,559 INFO L78 Accepts]: Start accepts. Automaton has 10765 states and 29254 transitions. Word has length 114 [2021-07-13 18:57:41,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:41,559 INFO L482 AbstractCegarLoop]: Abstraction has 10765 states and 29254 transitions. [2021-07-13 18:57:41,560 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:41,560 INFO L276 IsEmpty]: Start isEmpty. Operand 10765 states and 29254 transitions. [2021-07-13 18:57:41,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:57:41,573 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:41,573 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:41,573 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-07-13 18:57:41,573 INFO L430 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:41,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:41,574 INFO L82 PathProgramCache]: Analyzing trace with hash 2090062860, now seen corresponding path program 48 times [2021-07-13 18:57:41,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:41,574 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396049696] [2021-07-13 18:57:41,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:41,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:41,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:41,951 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:41,951 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396049696] [2021-07-13 18:57:41,952 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396049696] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:41,952 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:41,952 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:57:41,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034785665] [2021-07-13 18:57:41,952 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:57:41,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:41,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:57:41,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:57:41,953 INFO L87 Difference]: Start difference. First operand 10765 states and 29254 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:42,724 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:57:42,898 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:57:43,088 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 18:57:43,285 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 18:57:43,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:43,503 INFO L93 Difference]: Finished difference Result 33904 states and 90323 transitions. [2021-07-13 18:57:43,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:57:43,503 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:57:43,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:43,567 INFO L225 Difference]: With dead ends: 33904 [2021-07-13 18:57:43,568 INFO L226 Difference]: Without dead ends: 33904 [2021-07-13 18:57:43,568 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1384.6ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:57:43,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33904 states. [2021-07-13 18:57:43,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33904 to 10737. [2021-07-13 18:57:43,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10737 states, 10735 states have (on average 2.71746623195156) internal successors, (29172), 10736 states have internal predecessors, (29172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:43,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10737 states to 10737 states and 29172 transitions. [2021-07-13 18:57:43,980 INFO L78 Accepts]: Start accepts. Automaton has 10737 states and 29172 transitions. Word has length 114 [2021-07-13 18:57:43,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:43,980 INFO L482 AbstractCegarLoop]: Abstraction has 10737 states and 29172 transitions. [2021-07-13 18:57:43,980 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:43,980 INFO L276 IsEmpty]: Start isEmpty. Operand 10737 states and 29172 transitions. [2021-07-13 18:57:43,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:57:43,994 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:43,994 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:43,995 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-07-13 18:57:43,995 INFO L430 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:43,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:43,995 INFO L82 PathProgramCache]: Analyzing trace with hash 450949486, now seen corresponding path program 49 times [2021-07-13 18:57:43,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:43,995 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355927294] [2021-07-13 18:57:43,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:44,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:44,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:44,399 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:44,399 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355927294] [2021-07-13 18:57:44,399 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355927294] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:44,399 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:44,399 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:57:44,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670780584] [2021-07-13 18:57:44,399 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:57:44,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:44,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:57:44,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:57:44,400 INFO L87 Difference]: Start difference. First operand 10737 states and 29172 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:45,095 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-13 18:57:45,244 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:57:45,398 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 18:57:45,595 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:57:45,800 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:57:46,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:46,014 INFO L93 Difference]: Finished difference Result 29217 states and 77986 transitions. [2021-07-13 18:57:46,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:57:46,015 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:57:46,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:46,066 INFO L225 Difference]: With dead ends: 29217 [2021-07-13 18:57:46,067 INFO L226 Difference]: Without dead ends: 29217 [2021-07-13 18:57:46,067 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1429.8ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:57:46,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29217 states. [2021-07-13 18:57:46,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29217 to 10681. [2021-07-13 18:57:46,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10681 states, 10679 states have (on average 2.716359209663826) internal successors, (29008), 10680 states have internal predecessors, (29008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:46,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10681 states to 10681 states and 29008 transitions. [2021-07-13 18:57:46,399 INFO L78 Accepts]: Start accepts. Automaton has 10681 states and 29008 transitions. Word has length 114 [2021-07-13 18:57:46,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:46,399 INFO L482 AbstractCegarLoop]: Abstraction has 10681 states and 29008 transitions. [2021-07-13 18:57:46,399 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:46,399 INFO L276 IsEmpty]: Start isEmpty. Operand 10681 states and 29008 transitions. [2021-07-13 18:57:46,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:57:46,412 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:46,412 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:46,412 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-07-13 18:57:46,412 INFO L430 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:46,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:46,413 INFO L82 PathProgramCache]: Analyzing trace with hash 749350160, now seen corresponding path program 50 times [2021-07-13 18:57:46,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:46,413 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884930051] [2021-07-13 18:57:46,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:46,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:46,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:46,741 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:46,741 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884930051] [2021-07-13 18:57:46,741 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884930051] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:46,741 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:46,741 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:57:46,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406673447] [2021-07-13 18:57:46,742 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:57:46,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:46,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:57:46,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:57:46,742 INFO L87 Difference]: Start difference. First operand 10681 states and 29008 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:47,540 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 18:57:47,701 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:57:47,879 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:57:48,082 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:57:48,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:48,299 INFO L93 Difference]: Finished difference Result 28871 states and 77036 transitions. [2021-07-13 18:57:48,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:57:48,299 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:57:48,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:48,352 INFO L225 Difference]: With dead ends: 28871 [2021-07-13 18:57:48,352 INFO L226 Difference]: Without dead ends: 28871 [2021-07-13 18:57:48,353 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1331.0ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:57:48,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28871 states. [2021-07-13 18:57:48,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28871 to 10737. [2021-07-13 18:57:48,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10737 states, 10735 states have (on average 2.71746623195156) internal successors, (29172), 10736 states have internal predecessors, (29172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:48,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10737 states to 10737 states and 29172 transitions. [2021-07-13 18:57:48,755 INFO L78 Accepts]: Start accepts. Automaton has 10737 states and 29172 transitions. Word has length 114 [2021-07-13 18:57:48,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:48,756 INFO L482 AbstractCegarLoop]: Abstraction has 10737 states and 29172 transitions. [2021-07-13 18:57:48,756 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:48,756 INFO L276 IsEmpty]: Start isEmpty. Operand 10737 states and 29172 transitions. [2021-07-13 18:57:48,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:57:48,769 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:48,769 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:48,770 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-07-13 18:57:48,770 INFO L430 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:48,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:48,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1336028786, now seen corresponding path program 51 times [2021-07-13 18:57:48,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:48,770 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507859160] [2021-07-13 18:57:48,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:48,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:49,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:49,177 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:49,177 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507859160] [2021-07-13 18:57:49,178 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507859160] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:49,178 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:49,178 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:57:49,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417158534] [2021-07-13 18:57:49,178 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:57:49,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:49,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:57:49,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:57:49,179 INFO L87 Difference]: Start difference. First operand 10737 states and 29172 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:49,997 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 18:57:50,160 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:57:50,356 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 18:57:50,554 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 18:57:50,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:50,786 INFO L93 Difference]: Finished difference Result 30247 states and 80239 transitions. [2021-07-13 18:57:50,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:57:50,786 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:57:50,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:50,839 INFO L225 Difference]: With dead ends: 30247 [2021-07-13 18:57:50,839 INFO L226 Difference]: Without dead ends: 30247 [2021-07-13 18:57:50,840 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1434.1ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:57:50,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30247 states. [2021-07-13 18:57:51,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30247 to 10709. [2021-07-13 18:57:51,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10709 states, 10707 states have (on average 2.7169141683011113) internal successors, (29090), 10708 states have internal predecessors, (29090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:51,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10709 states to 10709 states and 29090 transitions. [2021-07-13 18:57:51,148 INFO L78 Accepts]: Start accepts. Automaton has 10709 states and 29090 transitions. Word has length 114 [2021-07-13 18:57:51,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:51,148 INFO L482 AbstractCegarLoop]: Abstraction has 10709 states and 29090 transitions. [2021-07-13 18:57:51,148 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:51,149 INFO L276 IsEmpty]: Start isEmpty. Operand 10709 states and 29090 transitions. [2021-07-13 18:57:51,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:57:51,162 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:51,162 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:51,162 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-07-13 18:57:51,162 INFO L430 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:51,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:51,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1610253584, now seen corresponding path program 52 times [2021-07-13 18:57:51,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:51,163 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481596360] [2021-07-13 18:57:51,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:51,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:51,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:51,592 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:51,592 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481596360] [2021-07-13 18:57:51,592 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481596360] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:51,592 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:51,592 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:57:51,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890529817] [2021-07-13 18:57:51,592 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:57:51,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:51,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:57:51,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:57:51,593 INFO L87 Difference]: Start difference. First operand 10709 states and 29090 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:52,459 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 18:57:52,619 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:57:52,805 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 18:57:52,999 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 18:57:53,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:53,205 INFO L93 Difference]: Finished difference Result 29120 states and 77439 transitions. [2021-07-13 18:57:53,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:57:53,206 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:57:53,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:53,258 INFO L225 Difference]: With dead ends: 29120 [2021-07-13 18:57:53,258 INFO L226 Difference]: Without dead ends: 29120 [2021-07-13 18:57:53,259 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1430.5ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:57:53,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29120 states. [2021-07-13 18:57:53,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29120 to 10737. [2021-07-13 18:57:53,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10737 states, 10735 states have (on average 2.71746623195156) internal successors, (29172), 10736 states have internal predecessors, (29172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:53,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10737 states to 10737 states and 29172 transitions. [2021-07-13 18:57:53,562 INFO L78 Accepts]: Start accepts. Automaton has 10737 states and 29172 transitions. Word has length 114 [2021-07-13 18:57:53,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:53,563 INFO L482 AbstractCegarLoop]: Abstraction has 10737 states and 29172 transitions. [2021-07-13 18:57:53,563 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:53,563 INFO L276 IsEmpty]: Start isEmpty. Operand 10737 states and 29172 transitions. [2021-07-13 18:57:53,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:57:53,576 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:53,576 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:53,576 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-07-13 18:57:53,576 INFO L430 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:53,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:53,576 INFO L82 PathProgramCache]: Analyzing trace with hash -1858800564, now seen corresponding path program 53 times [2021-07-13 18:57:53,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:53,576 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680058922] [2021-07-13 18:57:53,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:53,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:53,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:53,901 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:53,901 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680058922] [2021-07-13 18:57:53,901 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680058922] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:53,901 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:53,901 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:57:53,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648557216] [2021-07-13 18:57:53,901 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:57:53,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:53,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:57:53,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:57:53,902 INFO L87 Difference]: Start difference. First operand 10737 states and 29172 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:54,731 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 18:57:54,895 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:57:55,073 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:57:55,271 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:57:55,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:55,466 INFO L93 Difference]: Finished difference Result 24326 states and 64931 transitions. [2021-07-13 18:57:55,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:57:55,467 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:57:55,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:55,508 INFO L225 Difference]: With dead ends: 24326 [2021-07-13 18:57:55,508 INFO L226 Difference]: Without dead ends: 24326 [2021-07-13 18:57:55,509 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1325.1ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:57:55,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24326 states. [2021-07-13 18:57:55,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24326 to 10625. [2021-07-13 18:57:55,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10625 states, 10623 states have (on average 2.7152405158618094) internal successors, (28844), 10624 states have internal predecessors, (28844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:55,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10625 states to 10625 states and 28844 transitions. [2021-07-13 18:57:55,774 INFO L78 Accepts]: Start accepts. Automaton has 10625 states and 28844 transitions. Word has length 114 [2021-07-13 18:57:55,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:55,775 INFO L482 AbstractCegarLoop]: Abstraction has 10625 states and 28844 transitions. [2021-07-13 18:57:55,775 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:55,775 INFO L276 IsEmpty]: Start isEmpty. Operand 10625 states and 28844 transitions. [2021-07-13 18:57:55,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:57:55,788 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:55,788 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:55,788 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-07-13 18:57:55,788 INFO L430 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:55,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:55,789 INFO L82 PathProgramCache]: Analyzing trace with hash -214203728, now seen corresponding path program 54 times [2021-07-13 18:57:55,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:55,789 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129449051] [2021-07-13 18:57:55,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:55,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:56,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:56,152 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:56,152 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129449051] [2021-07-13 18:57:56,152 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129449051] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:56,153 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:56,153 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:57:56,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129285052] [2021-07-13 18:57:56,153 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:57:56,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:56,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:57:56,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:57:56,155 INFO L87 Difference]: Start difference. First operand 10625 states and 28844 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:56,790 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-13 18:57:56,930 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:57:57,108 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:57:57,318 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:57:57,518 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:57:57,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:57,698 INFO L93 Difference]: Finished difference Result 24685 states and 66345 transitions. [2021-07-13 18:57:57,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:57:57,698 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:57:57,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:57,740 INFO L225 Difference]: With dead ends: 24685 [2021-07-13 18:57:57,740 INFO L226 Difference]: Without dead ends: 24685 [2021-07-13 18:57:57,740 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1396.3ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:57:57,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24685 states. [2021-07-13 18:57:57,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24685 to 10737. [2021-07-13 18:57:57,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10737 states, 10735 states have (on average 2.71746623195156) internal successors, (29172), 10736 states have internal predecessors, (29172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:57,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10737 states to 10737 states and 29172 transitions. [2021-07-13 18:57:57,984 INFO L78 Accepts]: Start accepts. Automaton has 10737 states and 29172 transitions. Word has length 114 [2021-07-13 18:57:57,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:57,984 INFO L482 AbstractCegarLoop]: Abstraction has 10737 states and 29172 transitions. [2021-07-13 18:57:57,984 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:57,984 INFO L276 IsEmpty]: Start isEmpty. Operand 10737 states and 29172 transitions. [2021-07-13 18:57:57,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:57:57,997 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:57,997 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:57,997 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-07-13 18:57:57,998 INFO L430 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:57,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:57,998 INFO L82 PathProgramCache]: Analyzing trace with hash 1995384622, now seen corresponding path program 55 times [2021-07-13 18:57:57,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:57,998 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161270562] [2021-07-13 18:57:57,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:58,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:58,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:58,365 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:58,365 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161270562] [2021-07-13 18:57:58,365 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161270562] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:58,365 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:58,365 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:57:58,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543885713] [2021-07-13 18:57:58,365 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:57:58,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:58,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:57:58,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:57:58,366 INFO L87 Difference]: Start difference. First operand 10737 states and 29172 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:59,142 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:57:59,318 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:57:59,505 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 18:57:59,698 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 18:57:59,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:59,866 INFO L93 Difference]: Finished difference Result 23875 states and 63447 transitions. [2021-07-13 18:57:59,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:57:59,866 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:57:59,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:59,903 INFO L225 Difference]: With dead ends: 23875 [2021-07-13 18:57:59,903 INFO L226 Difference]: Without dead ends: 23875 [2021-07-13 18:57:59,904 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1377.6ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:57:59,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23875 states. [2021-07-13 18:58:00,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23875 to 10709. [2021-07-13 18:58:00,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10709 states, 10707 states have (on average 2.7169141683011113) internal successors, (29090), 10708 states have internal predecessors, (29090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:00,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10709 states to 10709 states and 29090 transitions. [2021-07-13 18:58:00,175 INFO L78 Accepts]: Start accepts. Automaton has 10709 states and 29090 transitions. Word has length 114 [2021-07-13 18:58:00,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:00,175 INFO L482 AbstractCegarLoop]: Abstraction has 10709 states and 29090 transitions. [2021-07-13 18:58:00,176 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:00,176 INFO L276 IsEmpty]: Start isEmpty. Operand 10709 states and 29090 transitions. [2021-07-13 18:58:00,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:58:00,188 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:00,189 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:00,189 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-07-13 18:58:00,189 INFO L430 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:00,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:00,189 INFO L82 PathProgramCache]: Analyzing trace with hash 356271248, now seen corresponding path program 56 times [2021-07-13 18:58:00,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:00,189 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81265072] [2021-07-13 18:58:00,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:00,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:00,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:00,558 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:00,558 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81265072] [2021-07-13 18:58:00,558 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81265072] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:00,558 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:00,558 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:58:00,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797530125] [2021-07-13 18:58:00,558 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:58:00,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:00,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:58:00,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:58:00,559 INFO L87 Difference]: Start difference. First operand 10709 states and 29090 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:01,357 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:58:01,508 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 18:58:01,703 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:58:01,906 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:58:02,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:02,078 INFO L93 Difference]: Finished difference Result 23845 states and 63549 transitions. [2021-07-13 18:58:02,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:58:02,078 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:58:02,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:02,118 INFO L225 Difference]: With dead ends: 23845 [2021-07-13 18:58:02,118 INFO L226 Difference]: Without dead ends: 23845 [2021-07-13 18:58:02,119 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1371.0ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:58:02,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23845 states. [2021-07-13 18:58:02,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23845 to 10653. [2021-07-13 18:58:02,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10653 states, 10651 states have (on average 2.7158013332081494) internal successors, (28926), 10652 states have internal predecessors, (28926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:02,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10653 states to 10653 states and 28926 transitions. [2021-07-13 18:58:02,369 INFO L78 Accepts]: Start accepts. Automaton has 10653 states and 28926 transitions. Word has length 114 [2021-07-13 18:58:02,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:02,369 INFO L482 AbstractCegarLoop]: Abstraction has 10653 states and 28926 transitions. [2021-07-13 18:58:02,370 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:02,370 INFO L276 IsEmpty]: Start isEmpty. Operand 10653 states and 28926 transitions. [2021-07-13 18:58:02,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:58:02,383 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:02,383 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:02,383 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-07-13 18:58:02,384 INFO L430 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:02,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:02,384 INFO L82 PathProgramCache]: Analyzing trace with hash -22546066, now seen corresponding path program 57 times [2021-07-13 18:58:02,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:02,384 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226676520] [2021-07-13 18:58:02,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:02,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:02,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:02,817 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:02,817 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226676520] [2021-07-13 18:58:02,817 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226676520] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:02,817 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:02,817 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:58:02,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539617154] [2021-07-13 18:58:02,818 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:58:02,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:02,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:58:02,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:58:02,818 INFO L87 Difference]: Start difference. First operand 10653 states and 28926 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:03,490 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-13 18:58:03,634 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-13 18:58:03,781 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 18:58:03,977 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:58:04,177 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:58:04,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:04,324 INFO L93 Difference]: Finished difference Result 17860 states and 47816 transitions. [2021-07-13 18:58:04,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:58:04,324 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:58:04,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:04,351 INFO L225 Difference]: With dead ends: 17860 [2021-07-13 18:58:04,351 INFO L226 Difference]: Without dead ends: 17860 [2021-07-13 18:58:04,352 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1436.4ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:58:04,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17860 states. [2021-07-13 18:58:04,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17860 to 10609. [2021-07-13 18:58:04,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10609 states, 10607 states have (on average 2.71499952861318) internal successors, (28798), 10608 states have internal predecessors, (28798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:04,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10609 states to 10609 states and 28798 transitions. [2021-07-13 18:58:04,542 INFO L78 Accepts]: Start accepts. Automaton has 10609 states and 28798 transitions. Word has length 114 [2021-07-13 18:58:04,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:04,542 INFO L482 AbstractCegarLoop]: Abstraction has 10609 states and 28798 transitions. [2021-07-13 18:58:04,542 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:04,543 INFO L276 IsEmpty]: Start isEmpty. Operand 10609 states and 28798 transitions. [2021-07-13 18:58:04,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:58:04,556 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:04,556 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:04,556 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-07-13 18:58:04,556 INFO L430 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:04,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:04,557 INFO L82 PathProgramCache]: Analyzing trace with hash -72978352, now seen corresponding path program 58 times [2021-07-13 18:58:04,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:04,557 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709693503] [2021-07-13 18:58:04,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:04,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:04,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:04,961 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:04,961 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709693503] [2021-07-13 18:58:04,961 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709693503] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:04,961 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:04,961 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:58:04,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890317036] [2021-07-13 18:58:04,962 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:58:04,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:04,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:58:04,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:58:04,962 INFO L87 Difference]: Start difference. First operand 10609 states and 28798 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:05,769 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:58:05,944 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:58:06,117 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:58:06,317 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:58:06,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:06,515 INFO L93 Difference]: Finished difference Result 31274 states and 83574 transitions. [2021-07-13 18:58:06,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:58:06,516 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:58:06,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:06,569 INFO L225 Difference]: With dead ends: 31274 [2021-07-13 18:58:06,569 INFO L226 Difference]: Without dead ends: 31274 [2021-07-13 18:58:06,569 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1435.8ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:58:06,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31274 states. [2021-07-13 18:58:06,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31274 to 10749. [2021-07-13 18:58:06,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10749 states, 10747 states have (on average 2.7177817065227505) internal successors, (29208), 10748 states have internal predecessors, (29208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:06,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10749 states to 10749 states and 29208 transitions. [2021-07-13 18:58:06,860 INFO L78 Accepts]: Start accepts. Automaton has 10749 states and 29208 transitions. Word has length 114 [2021-07-13 18:58:06,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:06,860 INFO L482 AbstractCegarLoop]: Abstraction has 10749 states and 29208 transitions. [2021-07-13 18:58:06,860 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:06,860 INFO L276 IsEmpty]: Start isEmpty. Operand 10749 states and 29208 transitions. [2021-07-13 18:58:06,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:58:06,872 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:06,873 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:06,873 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-07-13 18:58:06,873 INFO L430 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:06,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:06,873 INFO L82 PathProgramCache]: Analyzing trace with hash 2136609998, now seen corresponding path program 59 times [2021-07-13 18:58:06,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:06,873 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192221920] [2021-07-13 18:58:06,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:06,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:07,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:07,219 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:07,219 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192221920] [2021-07-13 18:58:07,220 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192221920] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:07,220 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:07,220 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:58:07,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89295998] [2021-07-13 18:58:07,220 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:58:07,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:07,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:58:07,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:58:07,221 INFO L87 Difference]: Start difference. First operand 10749 states and 29208 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:08,009 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:58:08,183 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:58:08,371 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 18:58:08,598 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 18:58:08,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:08,793 INFO L93 Difference]: Finished difference Result 30464 states and 80676 transitions. [2021-07-13 18:58:08,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:58:08,793 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:58:08,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:08,839 INFO L225 Difference]: With dead ends: 30464 [2021-07-13 18:58:08,839 INFO L226 Difference]: Without dead ends: 30464 [2021-07-13 18:58:08,839 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1410.6ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:58:08,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30464 states. [2021-07-13 18:58:09,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30464 to 10721. [2021-07-13 18:58:09,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10721 states, 10719 states have (on average 2.7172310849892716) internal successors, (29126), 10720 states have internal predecessors, (29126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:09,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10721 states to 10721 states and 29126 transitions. [2021-07-13 18:58:09,128 INFO L78 Accepts]: Start accepts. Automaton has 10721 states and 29126 transitions. Word has length 114 [2021-07-13 18:58:09,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:09,128 INFO L482 AbstractCegarLoop]: Abstraction has 10721 states and 29126 transitions. [2021-07-13 18:58:09,128 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:09,128 INFO L276 IsEmpty]: Start isEmpty. Operand 10721 states and 29126 transitions. [2021-07-13 18:58:09,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:58:09,140 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:09,140 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:09,140 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-07-13 18:58:09,140 INFO L430 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:09,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:09,141 INFO L82 PathProgramCache]: Analyzing trace with hash 497496624, now seen corresponding path program 60 times [2021-07-13 18:58:09,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:09,141 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090068530] [2021-07-13 18:58:09,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:09,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:09,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:09,491 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:09,491 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090068530] [2021-07-13 18:58:09,491 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090068530] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:09,492 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:09,492 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:58:09,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010820778] [2021-07-13 18:58:09,492 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:58:09,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:09,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:58:09,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:58:09,492 INFO L87 Difference]: Start difference. First operand 10721 states and 29126 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:10,259 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:58:10,411 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 18:58:10,605 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:58:10,806 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:58:10,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:10,997 INFO L93 Difference]: Finished difference Result 25777 states and 68339 transitions. [2021-07-13 18:58:10,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:58:10,997 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:58:10,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:11,039 INFO L225 Difference]: With dead ends: 25777 [2021-07-13 18:58:11,039 INFO L226 Difference]: Without dead ends: 25777 [2021-07-13 18:58:11,039 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1336.7ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:58:11,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25777 states. [2021-07-13 18:58:11,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25777 to 10665. [2021-07-13 18:58:11,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10665 states, 10663 states have (on average 2.7161211666510363) internal successors, (28962), 10664 states have internal predecessors, (28962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:11,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10665 states to 10665 states and 28962 transitions. [2021-07-13 18:58:11,327 INFO L78 Accepts]: Start accepts. Automaton has 10665 states and 28962 transitions. Word has length 114 [2021-07-13 18:58:11,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:11,327 INFO L482 AbstractCegarLoop]: Abstraction has 10665 states and 28962 transitions. [2021-07-13 18:58:11,327 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:11,327 INFO L276 IsEmpty]: Start isEmpty. Operand 10665 states and 28962 transitions. [2021-07-13 18:58:11,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:58:11,340 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:11,340 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:11,340 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-07-13 18:58:11,340 INFO L430 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:11,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:11,340 INFO L82 PathProgramCache]: Analyzing trace with hash 795897298, now seen corresponding path program 61 times [2021-07-13 18:58:11,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:11,341 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16661463] [2021-07-13 18:58:11,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:11,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:11,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:11,679 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:11,679 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16661463] [2021-07-13 18:58:11,679 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16661463] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:11,679 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:11,679 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:58:11,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552632596] [2021-07-13 18:58:11,679 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:58:11,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:11,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:58:11,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:58:11,680 INFO L87 Difference]: Start difference. First operand 10665 states and 28962 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:12,446 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 18:58:12,604 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:58:12,777 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:58:12,972 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:58:13,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:13,162 INFO L93 Difference]: Finished difference Result 25431 states and 67389 transitions. [2021-07-13 18:58:13,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:58:13,162 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:58:13,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:13,202 INFO L225 Difference]: With dead ends: 25431 [2021-07-13 18:58:13,203 INFO L226 Difference]: Without dead ends: 25431 [2021-07-13 18:58:13,203 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1329.8ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:58:13,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25431 states. [2021-07-13 18:58:13,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25431 to 10707. [2021-07-13 18:58:13,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10707 states, 10705 states have (on average 2.7169546940681926) internal successors, (29085), 10706 states have internal predecessors, (29085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:13,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10707 states to 10707 states and 29085 transitions. [2021-07-13 18:58:13,446 INFO L78 Accepts]: Start accepts. Automaton has 10707 states and 29085 transitions. Word has length 114 [2021-07-13 18:58:13,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:13,446 INFO L482 AbstractCegarLoop]: Abstraction has 10707 states and 29085 transitions. [2021-07-13 18:58:13,447 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:13,447 INFO L276 IsEmpty]: Start isEmpty. Operand 10707 states and 29085 transitions. [2021-07-13 18:58:13,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:58:13,459 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:13,459 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:13,459 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-07-13 18:58:13,459 INFO L430 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:13,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:13,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1289481648, now seen corresponding path program 62 times [2021-07-13 18:58:13,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:13,460 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931576801] [2021-07-13 18:58:13,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:13,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:13,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:13,889 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:13,889 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931576801] [2021-07-13 18:58:13,889 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931576801] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:13,889 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:13,889 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:58:13,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913990078] [2021-07-13 18:58:13,890 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:58:13,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:13,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:58:13,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:58:13,890 INFO L87 Difference]: Start difference. First operand 10707 states and 29085 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:14,731 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 18:58:14,890 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:58:15,077 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 18:58:15,268 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 18:58:15,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:15,455 INFO L93 Difference]: Finished difference Result 26807 states and 70592 transitions. [2021-07-13 18:58:15,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:58:15,456 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:58:15,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:15,497 INFO L225 Difference]: With dead ends: 26807 [2021-07-13 18:58:15,497 INFO L226 Difference]: Without dead ends: 26807 [2021-07-13 18:58:15,498 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1388.6ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:58:15,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26807 states. [2021-07-13 18:58:15,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26807 to 10679. [2021-07-13 18:58:15,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10679 states, 10677 states have (on average 2.7163997377540507) internal successors, (29003), 10678 states have internal predecessors, (29003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:15,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10679 states to 10679 states and 29003 transitions. [2021-07-13 18:58:15,743 INFO L78 Accepts]: Start accepts. Automaton has 10679 states and 29003 transitions. Word has length 114 [2021-07-13 18:58:15,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:15,744 INFO L482 AbstractCegarLoop]: Abstraction has 10679 states and 29003 transitions. [2021-07-13 18:58:15,744 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:15,744 INFO L276 IsEmpty]: Start isEmpty. Operand 10679 states and 29003 transitions. [2021-07-13 18:58:15,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:58:15,756 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:15,756 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:15,756 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-07-13 18:58:15,756 INFO L430 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:15,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:15,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1563706446, now seen corresponding path program 63 times [2021-07-13 18:58:15,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:15,757 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814742228] [2021-07-13 18:58:15,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:15,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:16,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:16,069 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:16,069 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814742228] [2021-07-13 18:58:16,069 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814742228] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:16,069 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:16,069 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:58:16,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884186354] [2021-07-13 18:58:16,070 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:58:16,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:16,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:58:16,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:58:16,070 INFO L87 Difference]: Start difference. First operand 10679 states and 29003 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:16,887 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 18:58:17,049 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:58:17,235 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 18:58:17,429 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 18:58:17,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:17,625 INFO L93 Difference]: Finished difference Result 25680 states and 67792 transitions. [2021-07-13 18:58:17,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:58:17,625 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:58:17,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:17,666 INFO L225 Difference]: With dead ends: 25680 [2021-07-13 18:58:17,666 INFO L226 Difference]: Without dead ends: 25680 [2021-07-13 18:58:17,666 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1362.5ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:58:17,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25680 states. [2021-07-13 18:58:17,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25680 to 10693. [2021-07-13 18:58:17,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10693 states, 10691 states have (on average 2.716677579272285) internal successors, (29044), 10692 states have internal predecessors, (29044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:17,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10693 states to 10693 states and 29044 transitions. [2021-07-13 18:58:17,900 INFO L78 Accepts]: Start accepts. Automaton has 10693 states and 29044 transitions. Word has length 114 [2021-07-13 18:58:17,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:17,901 INFO L482 AbstractCegarLoop]: Abstraction has 10693 states and 29044 transitions. [2021-07-13 18:58:17,901 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:17,901 INFO L276 IsEmpty]: Start isEmpty. Operand 10693 states and 29044 transitions. [2021-07-13 18:58:17,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:58:17,915 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:17,915 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:17,915 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-07-13 18:58:17,915 INFO L430 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:17,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:17,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1812253426, now seen corresponding path program 64 times [2021-07-13 18:58:17,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:17,916 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522964084] [2021-07-13 18:58:17,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:17,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:18,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:18,292 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:18,292 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522964084] [2021-07-13 18:58:18,292 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522964084] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:18,292 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:18,292 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:58:18,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835283616] [2021-07-13 18:58:18,292 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:58:18,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:18,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:58:18,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:58:18,293 INFO L87 Difference]: Start difference. First operand 10693 states and 29044 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:19,102 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 18:58:19,260 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:58:19,473 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:58:19,672 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:58:19,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:19,828 INFO L93 Difference]: Finished difference Result 20886 states and 55284 transitions. [2021-07-13 18:58:19,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:58:19,829 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:58:19,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:19,858 INFO L225 Difference]: With dead ends: 20886 [2021-07-13 18:58:19,858 INFO L226 Difference]: Without dead ends: 20886 [2021-07-13 18:58:19,858 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1448.6ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:58:19,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20886 states. [2021-07-13 18:58:20,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20886 to 10497. [2021-07-13 18:58:20,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10497 states, 10495 states have (on average 2.712720343020486) internal successors, (28470), 10496 states have internal predecessors, (28470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:20,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10497 states to 10497 states and 28470 transitions. [2021-07-13 18:58:20,061 INFO L78 Accepts]: Start accepts. Automaton has 10497 states and 28470 transitions. Word has length 114 [2021-07-13 18:58:20,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:20,061 INFO L482 AbstractCegarLoop]: Abstraction has 10497 states and 28470 transitions. [2021-07-13 18:58:20,061 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:20,061 INFO L276 IsEmpty]: Start isEmpty. Operand 10497 states and 28470 transitions. [2021-07-13 18:58:20,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:58:20,073 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:20,073 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:20,073 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-07-13 18:58:20,073 INFO L430 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:20,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:20,073 INFO L82 PathProgramCache]: Analyzing trace with hash -167656590, now seen corresponding path program 65 times [2021-07-13 18:58:20,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:20,073 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22675634] [2021-07-13 18:58:20,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:20,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:20,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:20,432 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:20,432 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22675634] [2021-07-13 18:58:20,432 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22675634] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:20,432 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:20,432 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:58:20,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450916260] [2021-07-13 18:58:20,432 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:58:20,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:20,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:58:20,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:58:20,433 INFO L87 Difference]: Start difference. First operand 10497 states and 28470 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:21,194 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:58:21,373 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:58:21,550 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:58:21,748 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:58:21,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:21,990 INFO L93 Difference]: Finished difference Result 29779 states and 79246 transitions. [2021-07-13 18:58:21,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:58:21,990 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:58:21,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:22,046 INFO L225 Difference]: With dead ends: 29779 [2021-07-13 18:58:22,046 INFO L226 Difference]: Without dead ends: 29779 [2021-07-13 18:58:22,047 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1353.6ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:58:22,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29779 states. [2021-07-13 18:58:22,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29779 to 10609. [2021-07-13 18:58:22,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10609 states, 10607 states have (on average 2.71499952861318) internal successors, (28798), 10608 states have internal predecessors, (28798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:22,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10609 states to 10609 states and 28798 transitions. [2021-07-13 18:58:22,488 INFO L78 Accepts]: Start accepts. Automaton has 10609 states and 28798 transitions. Word has length 114 [2021-07-13 18:58:22,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:22,489 INFO L482 AbstractCegarLoop]: Abstraction has 10609 states and 28798 transitions. [2021-07-13 18:58:22,489 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:22,489 INFO L276 IsEmpty]: Start isEmpty. Operand 10609 states and 28798 transitions. [2021-07-13 18:58:22,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:58:22,504 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:22,504 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:22,504 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-07-13 18:58:22,504 INFO L430 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:22,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:22,505 INFO L82 PathProgramCache]: Analyzing trace with hash 2041931760, now seen corresponding path program 66 times [2021-07-13 18:58:22,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:22,505 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54029747] [2021-07-13 18:58:22,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:23,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:23,030 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:23,030 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54029747] [2021-07-13 18:58:23,030 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54029747] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:23,030 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:23,030 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:58:23,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492222361] [2021-07-13 18:58:23,030 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:58:23,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:23,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:58:23,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:58:23,031 INFO L87 Difference]: Start difference. First operand 10609 states and 28798 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:23,687 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-07-13 18:58:23,855 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-13 18:58:24,041 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:58:24,282 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:58:24,545 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 18:58:24,813 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 18:58:25,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:25,101 INFO L93 Difference]: Finished difference Result 28969 states and 76348 transitions. [2021-07-13 18:58:25,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:58:25,102 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:58:25,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:25,158 INFO L225 Difference]: With dead ends: 28969 [2021-07-13 18:58:25,159 INFO L226 Difference]: Without dead ends: 28969 [2021-07-13 18:58:25,159 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1789.8ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:58:25,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28969 states. [2021-07-13 18:58:25,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28969 to 10581. [2021-07-13 18:58:25,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10581 states, 10579 states have (on average 2.7144342565459874) internal successors, (28716), 10580 states have internal predecessors, (28716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:25,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10581 states to 10581 states and 28716 transitions. [2021-07-13 18:58:25,516 INFO L78 Accepts]: Start accepts. Automaton has 10581 states and 28716 transitions. Word has length 114 [2021-07-13 18:58:25,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:25,516 INFO L482 AbstractCegarLoop]: Abstraction has 10581 states and 28716 transitions. [2021-07-13 18:58:25,517 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:25,517 INFO L276 IsEmpty]: Start isEmpty. Operand 10581 states and 28716 transitions. [2021-07-13 18:58:25,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:58:25,534 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:25,534 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:25,534 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-07-13 18:58:25,534 INFO L430 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:25,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:25,535 INFO L82 PathProgramCache]: Analyzing trace with hash 402818386, now seen corresponding path program 67 times [2021-07-13 18:58:25,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:25,535 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932018871] [2021-07-13 18:58:25,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:25,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:26,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:26,100 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:26,100 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932018871] [2021-07-13 18:58:26,101 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932018871] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:26,101 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:26,101 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:58:26,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730128954] [2021-07-13 18:58:26,101 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:58:26,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:26,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:58:26,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:58:26,102 INFO L87 Difference]: Start difference. First operand 10581 states and 28716 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:26,744 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-07-13 18:58:26,907 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-13 18:58:27,089 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:58:27,288 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 18:58:27,552 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:58:27,825 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:58:28,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:28,081 INFO L93 Difference]: Finished difference Result 28939 states and 76450 transitions. [2021-07-13 18:58:28,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:58:28,082 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:58:28,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:28,136 INFO L225 Difference]: With dead ends: 28939 [2021-07-13 18:58:28,136 INFO L226 Difference]: Without dead ends: 28939 [2021-07-13 18:58:28,137 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1747.5ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:58:28,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28939 states. [2021-07-13 18:58:28,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28939 to 10525. [2021-07-13 18:58:28,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10525 states, 10523 states have (on average 2.7132946878266653) internal successors, (28552), 10524 states have internal predecessors, (28552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:28,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10525 states to 10525 states and 28552 transitions. [2021-07-13 18:58:28,473 INFO L78 Accepts]: Start accepts. Automaton has 10525 states and 28552 transitions. Word has length 114 [2021-07-13 18:58:28,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:28,473 INFO L482 AbstractCegarLoop]: Abstraction has 10525 states and 28552 transitions. [2021-07-13 18:58:28,473 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:28,473 INFO L276 IsEmpty]: Start isEmpty. Operand 10525 states and 28552 transitions. [2021-07-13 18:58:28,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:58:28,488 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:28,489 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:28,489 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-07-13 18:58:28,489 INFO L430 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:28,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:28,489 INFO L82 PathProgramCache]: Analyzing trace with hash 24001072, now seen corresponding path program 68 times [2021-07-13 18:58:28,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:28,489 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844996177] [2021-07-13 18:58:28,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:28,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:29,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:29,177 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:29,177 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844996177] [2021-07-13 18:58:29,177 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844996177] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:29,177 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:29,177 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:58:29,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185645048] [2021-07-13 18:58:29,177 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:58:29,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:29,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:58:29,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:58:29,178 INFO L87 Difference]: Start difference. First operand 10525 states and 28552 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:29,954 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-07-13 18:58:30,147 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-07-13 18:58:30,387 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-13 18:58:30,631 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-13 18:58:30,906 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 18:58:31,267 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:58:31,565 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:58:31,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:31,787 INFO L93 Difference]: Finished difference Result 22954 states and 60717 transitions. [2021-07-13 18:58:31,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:58:31,788 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:58:31,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:31,827 INFO L225 Difference]: With dead ends: 22954 [2021-07-13 18:58:31,828 INFO L226 Difference]: Without dead ends: 22954 [2021-07-13 18:58:31,833 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 2390.2ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:58:31,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22954 states. [2021-07-13 18:58:32,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22954 to 10469. [2021-07-13 18:58:32,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10469 states, 10467 states have (on average 2.712142925384542) internal successors, (28388), 10468 states have internal predecessors, (28388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:32,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10469 states to 10469 states and 28388 transitions. [2021-07-13 18:58:32,107 INFO L78 Accepts]: Start accepts. Automaton has 10469 states and 28388 transitions. Word has length 114 [2021-07-13 18:58:32,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:32,108 INFO L482 AbstractCegarLoop]: Abstraction has 10469 states and 28388 transitions. [2021-07-13 18:58:32,108 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:32,108 INFO L276 IsEmpty]: Start isEmpty. Operand 10469 states and 28388 transitions. [2021-07-13 18:58:32,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:58:32,123 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:32,123 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:32,123 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-07-13 18:58:32,123 INFO L430 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:32,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:32,124 INFO L82 PathProgramCache]: Analyzing trace with hash -573558898, now seen corresponding path program 69 times [2021-07-13 18:58:32,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:32,124 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224201398] [2021-07-13 18:58:32,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:32,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:32,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:32,726 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:32,726 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224201398] [2021-07-13 18:58:32,726 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224201398] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:32,726 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:32,726 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:58:32,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25898726] [2021-07-13 18:58:32,727 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:58:32,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:32,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:58:32,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:58:32,727 INFO L87 Difference]: Start difference. First operand 10469 states and 28388 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:33,398 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2021-07-13 18:58:33,557 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-13 18:58:33,743 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:58:34,052 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:58:34,292 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:58:34,561 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:58:34,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:34,791 INFO L93 Difference]: Finished difference Result 21217 states and 56616 transitions. [2021-07-13 18:58:34,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:58:34,792 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:58:34,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:34,830 INFO L225 Difference]: With dead ends: 21217 [2021-07-13 18:58:34,830 INFO L226 Difference]: Without dead ends: 21217 [2021-07-13 18:58:34,830 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1890.3ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:58:34,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21217 states. [2021-07-13 18:58:35,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21217 to 10539. [2021-07-13 18:58:35,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10539 states, 10537 states have (on average 2.7135807155736926) internal successors, (28593), 10538 states have internal predecessors, (28593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:35,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10539 states to 10539 states and 28593 transitions. [2021-07-13 18:58:35,042 INFO L78 Accepts]: Start accepts. Automaton has 10539 states and 28593 transitions. Word has length 114 [2021-07-13 18:58:35,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:35,042 INFO L482 AbstractCegarLoop]: Abstraction has 10539 states and 28593 transitions. [2021-07-13 18:58:35,042 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:35,042 INFO L276 IsEmpty]: Start isEmpty. Operand 10539 states and 28593 transitions. [2021-07-13 18:58:35,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:58:35,054 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:35,055 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:35,055 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-07-13 18:58:35,055 INFO L430 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:35,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:35,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1636029452, now seen corresponding path program 70 times [2021-07-13 18:58:35,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:35,055 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433049738] [2021-07-13 18:58:35,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:35,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:35,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:35,522 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:35,522 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433049738] [2021-07-13 18:58:35,522 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433049738] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:35,522 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:35,522 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:58:35,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265619837] [2021-07-13 18:58:35,522 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:58:35,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:35,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:58:35,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:58:35,523 INFO L87 Difference]: Start difference. First operand 10539 states and 28593 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:36,321 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:58:36,501 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:58:36,693 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 18:58:36,890 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 18:58:37,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:37,065 INFO L93 Difference]: Finished difference Result 20407 states and 53718 transitions. [2021-07-13 18:58:37,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:58:37,066 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:58:37,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:37,096 INFO L225 Difference]: With dead ends: 20407 [2021-07-13 18:58:37,096 INFO L226 Difference]: Without dead ends: 20407 [2021-07-13 18:58:37,097 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1472.1ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:58:37,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20407 states. [2021-07-13 18:58:37,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20407 to 10413. [2021-07-13 18:58:37,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10413 states, 10411 states have (on average 2.710978772452214) internal successors, (28224), 10412 states have internal predecessors, (28224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:37,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10413 states to 10413 states and 28224 transitions. [2021-07-13 18:58:37,336 INFO L78 Accepts]: Start accepts. Automaton has 10413 states and 28224 transitions. Word has length 114 [2021-07-13 18:58:37,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:37,336 INFO L482 AbstractCegarLoop]: Abstraction has 10413 states and 28224 transitions. [2021-07-13 18:58:37,336 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:37,336 INFO L276 IsEmpty]: Start isEmpty. Operand 10413 states and 28224 transitions. [2021-07-13 18:58:37,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:58:37,348 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:37,348 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:37,348 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-07-13 18:58:37,348 INFO L430 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:37,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:37,349 INFO L82 PathProgramCache]: Analyzing trace with hash -3083922, now seen corresponding path program 71 times [2021-07-13 18:58:37,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:37,349 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931753768] [2021-07-13 18:58:37,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:37,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:37,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:37,740 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:37,740 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931753768] [2021-07-13 18:58:37,740 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931753768] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:37,740 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:37,740 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:58:37,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168571342] [2021-07-13 18:58:37,741 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:58:37,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:37,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:58:37,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:58:37,741 INFO L87 Difference]: Start difference. First operand 10413 states and 28224 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:38,522 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:58:38,674 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 18:58:38,872 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:58:39,075 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:58:39,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:39,239 INFO L93 Difference]: Finished difference Result 20377 states and 53820 transitions. [2021-07-13 18:58:39,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:58:39,240 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:58:39,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:39,269 INFO L225 Difference]: With dead ends: 20377 [2021-07-13 18:58:39,269 INFO L226 Difference]: Without dead ends: 20377 [2021-07-13 18:58:39,270 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1370.2ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:58:39,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20377 states. [2021-07-13 18:58:39,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20377 to 10357. [2021-07-13 18:58:39,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10357 states, 10355 states have (on average 2.7098020280057944) internal successors, (28060), 10356 states have internal predecessors, (28060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:39,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10357 states to 10357 states and 28060 transitions. [2021-07-13 18:58:39,475 INFO L78 Accepts]: Start accepts. Automaton has 10357 states and 28060 transitions. Word has length 114 [2021-07-13 18:58:39,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:39,476 INFO L482 AbstractCegarLoop]: Abstraction has 10357 states and 28060 transitions. [2021-07-13 18:58:39,476 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:39,476 INFO L276 IsEmpty]: Start isEmpty. Operand 10357 states and 28060 transitions. [2021-07-13 18:58:39,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:58:39,488 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:39,488 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:39,488 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-07-13 18:58:39,488 INFO L430 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:39,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:39,488 INFO L82 PathProgramCache]: Analyzing trace with hash -381901236, now seen corresponding path program 72 times [2021-07-13 18:58:39,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:39,489 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137396130] [2021-07-13 18:58:39,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:39,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:40,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:40,012 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:40,013 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137396130] [2021-07-13 18:58:40,013 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137396130] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:40,013 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:40,013 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:58:40,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727793566] [2021-07-13 18:58:40,013 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:58:40,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:40,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:58:40,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:58:40,014 INFO L87 Difference]: Start difference. First operand 10357 states and 28060 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:40,804 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-13 18:58:40,953 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 18:58:41,153 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:58:41,356 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:58:41,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:41,517 INFO L93 Difference]: Finished difference Result 20881 states and 55296 transitions. [2021-07-13 18:58:41,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:58:41,517 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:58:41,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:41,550 INFO L225 Difference]: With dead ends: 20881 [2021-07-13 18:58:41,550 INFO L226 Difference]: Without dead ends: 20881 [2021-07-13 18:58:41,550 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1436.7ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:58:41,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20881 states. [2021-07-13 18:58:41,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20881 to 10329. [2021-07-13 18:58:41,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10329 states, 10327 states have (on average 2.7092088699525516) internal successors, (27978), 10328 states have internal predecessors, (27978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:41,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10329 states to 10329 states and 27978 transitions. [2021-07-13 18:58:41,755 INFO L78 Accepts]: Start accepts. Automaton has 10329 states and 27978 transitions. Word has length 114 [2021-07-13 18:58:41,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:41,755 INFO L482 AbstractCegarLoop]: Abstraction has 10329 states and 27978 transitions. [2021-07-13 18:58:41,755 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:41,755 INFO L276 IsEmpty]: Start isEmpty. Operand 10329 states and 27978 transitions. [2021-07-13 18:58:41,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:58:41,766 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:41,767 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:41,767 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-07-13 18:58:41,767 INFO L430 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:41,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:41,767 INFO L82 PathProgramCache]: Analyzing trace with hash -41656878, now seen corresponding path program 73 times [2021-07-13 18:58:41,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:41,767 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199507996] [2021-07-13 18:58:41,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:41,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:42,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:42,145 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:42,146 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199507996] [2021-07-13 18:58:42,146 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199507996] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:42,146 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:42,146 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:58:42,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503038987] [2021-07-13 18:58:42,146 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:58:42,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:42,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:58:42,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:58:42,147 INFO L87 Difference]: Start difference. First operand 10329 states and 27978 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:42,709 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2021-07-13 18:58:42,956 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-13 18:58:43,106 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 18:58:43,302 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:58:43,503 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:58:43,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:43,660 INFO L93 Difference]: Finished difference Result 14275 states and 37776 transitions. [2021-07-13 18:58:43,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:58:43,661 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:58:43,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:43,682 INFO L225 Difference]: With dead ends: 14275 [2021-07-13 18:58:43,682 INFO L226 Difference]: Without dead ends: 14275 [2021-07-13 18:58:43,682 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1387.4ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:58:43,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14275 states. [2021-07-13 18:58:43,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14275 to 8647. [2021-07-13 18:58:43,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8647 states, 8645 states have (on average 2.6884904569115093) internal successors, (23242), 8646 states have internal predecessors, (23242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:43,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8647 states to 8647 states and 23242 transitions. [2021-07-13 18:58:43,830 INFO L78 Accepts]: Start accepts. Automaton has 8647 states and 23242 transitions. Word has length 114 [2021-07-13 18:58:43,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:43,830 INFO L482 AbstractCegarLoop]: Abstraction has 8647 states and 23242 transitions. [2021-07-13 18:58:43,830 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:43,830 INFO L276 IsEmpty]: Start isEmpty. Operand 8647 states and 23242 transitions. [2021-07-13 18:58:43,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:58:43,840 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:43,840 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:43,840 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-07-13 18:58:43,840 INFO L430 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:43,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:43,840 INFO L82 PathProgramCache]: Analyzing trace with hash -1413436722, now seen corresponding path program 74 times [2021-07-13 18:58:43,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:43,840 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806781375] [2021-07-13 18:58:43,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:43,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:44,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:44,175 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:44,175 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806781375] [2021-07-13 18:58:44,175 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806781375] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:44,175 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:44,175 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:58:44,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530458470] [2021-07-13 18:58:44,175 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:58:44,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:44,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:58:44,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:58:44,176 INFO L87 Difference]: Start difference. First operand 8647 states and 23242 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:44,946 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:58:45,118 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:58:45,288 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:58:45,488 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:58:45,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:45,717 INFO L93 Difference]: Finished difference Result 24231 states and 64470 transitions. [2021-07-13 18:58:45,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:58:45,717 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:58:45,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:45,750 INFO L225 Difference]: With dead ends: 24231 [2021-07-13 18:58:45,750 INFO L226 Difference]: Without dead ends: 24231 [2021-07-13 18:58:45,750 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1340.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:58:45,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24231 states. [2021-07-13 18:58:45,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24231 to 8869. [2021-07-13 18:58:45,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8869 states, 8867 states have (on average 2.6932446148641027) internal successors, (23881), 8868 states have internal predecessors, (23881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:45,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8869 states to 8869 states and 23881 transitions. [2021-07-13 18:58:45,966 INFO L78 Accepts]: Start accepts. Automaton has 8869 states and 23881 transitions. Word has length 114 [2021-07-13 18:58:45,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:45,966 INFO L482 AbstractCegarLoop]: Abstraction has 8869 states and 23881 transitions. [2021-07-13 18:58:45,966 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:45,966 INFO L276 IsEmpty]: Start isEmpty. Operand 8869 states and 23881 transitions. [2021-07-13 18:58:45,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:58:45,977 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:45,977 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:45,977 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-07-13 18:58:45,977 INFO L430 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:45,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:45,978 INFO L82 PathProgramCache]: Analyzing trace with hash 796151628, now seen corresponding path program 75 times [2021-07-13 18:58:45,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:45,978 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708002898] [2021-07-13 18:58:45,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:45,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:46,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:46,384 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:46,384 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708002898] [2021-07-13 18:58:46,384 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708002898] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:46,384 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:46,384 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:58:46,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797639714] [2021-07-13 18:58:46,385 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:58:46,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:46,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:58:46,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:58:46,385 INFO L87 Difference]: Start difference. First operand 8869 states and 23881 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:47,194 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:58:47,365 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:58:47,548 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 18:58:47,741 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 18:58:47,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:47,913 INFO L93 Difference]: Finished difference Result 23809 states and 62956 transitions. [2021-07-13 18:58:47,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:58:47,914 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:58:47,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:47,951 INFO L225 Difference]: With dead ends: 23809 [2021-07-13 18:58:47,951 INFO L226 Difference]: Without dead ends: 23809 [2021-07-13 18:58:47,951 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1429.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:58:47,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23809 states. [2021-07-13 18:58:48,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23809 to 8869. [2021-07-13 18:58:48,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8869 states, 8867 states have (on average 2.69121461599188) internal successors, (23863), 8868 states have internal predecessors, (23863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:48,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8869 states to 8869 states and 23863 transitions. [2021-07-13 18:58:48,196 INFO L78 Accepts]: Start accepts. Automaton has 8869 states and 23863 transitions. Word has length 114 [2021-07-13 18:58:48,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:48,196 INFO L482 AbstractCegarLoop]: Abstraction has 8869 states and 23863 transitions. [2021-07-13 18:58:48,196 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:48,196 INFO L276 IsEmpty]: Start isEmpty. Operand 8869 states and 23863 transitions. [2021-07-13 18:58:48,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:58:48,206 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:48,207 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:48,207 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-07-13 18:58:48,207 INFO L430 AbstractCegarLoop]: === Iteration 84 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:48,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:48,207 INFO L82 PathProgramCache]: Analyzing trace with hash -842961746, now seen corresponding path program 76 times [2021-07-13 18:58:48,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:48,207 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022476531] [2021-07-13 18:58:48,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:48,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:48,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:48,618 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:48,618 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022476531] [2021-07-13 18:58:48,619 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022476531] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:48,619 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:48,619 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:58:48,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773075239] [2021-07-13 18:58:48,619 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:58:48,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:48,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:58:48,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:58:48,619 INFO L87 Difference]: Start difference. First operand 8869 states and 23863 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:49,392 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:58:49,543 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 18:58:49,730 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:58:49,932 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:58:50,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:50,100 INFO L93 Difference]: Finished difference Result 21287 states and 56449 transitions. [2021-07-13 18:58:50,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:58:50,100 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:58:50,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:50,131 INFO L225 Difference]: With dead ends: 21287 [2021-07-13 18:58:50,131 INFO L226 Difference]: Without dead ends: 21287 [2021-07-13 18:58:50,132 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1335.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:58:50,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21287 states. [2021-07-13 18:58:50,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21287 to 8841. [2021-07-13 18:58:50,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8841 states, 8839 states have (on average 2.6904627220273785) internal successors, (23781), 8840 states have internal predecessors, (23781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:50,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8841 states to 8841 states and 23781 transitions. [2021-07-13 18:58:50,342 INFO L78 Accepts]: Start accepts. Automaton has 8841 states and 23781 transitions. Word has length 114 [2021-07-13 18:58:50,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:50,342 INFO L482 AbstractCegarLoop]: Abstraction has 8841 states and 23781 transitions. [2021-07-13 18:58:50,342 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:50,342 INFO L276 IsEmpty]: Start isEmpty. Operand 8841 states and 23781 transitions. [2021-07-13 18:58:50,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:58:50,353 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:50,353 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:50,353 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-07-13 18:58:50,354 INFO L430 AbstractCegarLoop]: === Iteration 85 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:50,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:50,354 INFO L82 PathProgramCache]: Analyzing trace with hash -544561072, now seen corresponding path program 77 times [2021-07-13 18:58:50,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:50,354 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886728620] [2021-07-13 18:58:50,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:50,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:50,693 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:50,693 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886728620] [2021-07-13 18:58:50,693 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886728620] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:50,693 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:50,693 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:58:50,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521558331] [2021-07-13 18:58:50,693 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:58:50,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:50,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:58:50,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:58:50,694 INFO L87 Difference]: Start difference. First operand 8841 states and 23781 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:51,232 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-07-13 18:58:51,535 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 18:58:51,694 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:58:51,870 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:58:52,069 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:58:52,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:52,258 INFO L93 Difference]: Finished difference Result 24849 states and 65497 transitions. [2021-07-13 18:58:52,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:58:52,259 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:58:52,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:52,296 INFO L225 Difference]: With dead ends: 24849 [2021-07-13 18:58:52,297 INFO L226 Difference]: Without dead ends: 24849 [2021-07-13 18:58:52,297 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1378.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:58:52,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24849 states. [2021-07-13 18:58:52,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24849 to 8873. [2021-07-13 18:58:52,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8873 states, 8871 states have (on average 2.691128395896742) internal successors, (23873), 8872 states have internal predecessors, (23873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:52,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8873 states to 8873 states and 23873 transitions. [2021-07-13 18:58:52,521 INFO L78 Accepts]: Start accepts. Automaton has 8873 states and 23873 transitions. Word has length 114 [2021-07-13 18:58:52,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:52,522 INFO L482 AbstractCegarLoop]: Abstraction has 8873 states and 23873 transitions. [2021-07-13 18:58:52,522 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:52,522 INFO L276 IsEmpty]: Start isEmpty. Operand 8873 states and 23873 transitions. [2021-07-13 18:58:52,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:58:52,532 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:52,532 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:52,532 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-07-13 18:58:52,532 INFO L430 AbstractCegarLoop]: === Iteration 86 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:52,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:52,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1665027278, now seen corresponding path program 78 times [2021-07-13 18:58:52,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:52,533 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509236203] [2021-07-13 18:58:52,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:52,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:52,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:52,860 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:52,860 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509236203] [2021-07-13 18:58:52,860 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509236203] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:52,860 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:52,860 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:58:52,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300508365] [2021-07-13 18:58:52,860 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:58:52,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:52,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:58:52,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:58:52,861 INFO L87 Difference]: Start difference. First operand 8873 states and 23873 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:53,637 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 18:58:53,793 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:58:53,981 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 18:58:54,199 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 18:58:54,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:54,375 INFO L93 Difference]: Finished difference Result 25662 states and 67301 transitions. [2021-07-13 18:58:54,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:58:54,375 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:58:54,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:54,413 INFO L225 Difference]: With dead ends: 25662 [2021-07-13 18:58:54,413 INFO L226 Difference]: Without dead ends: 25662 [2021-07-13 18:58:54,414 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1372.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:58:54,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25662 states. [2021-07-13 18:58:54,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25662 to 8857. [2021-07-13 18:58:54,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8857 states, 8855 states have (on average 2.6907961603613777) internal successors, (23827), 8856 states have internal predecessors, (23827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:54,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8857 states to 8857 states and 23827 transitions. [2021-07-13 18:58:54,644 INFO L78 Accepts]: Start accepts. Automaton has 8857 states and 23827 transitions. Word has length 114 [2021-07-13 18:58:54,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:54,644 INFO L482 AbstractCegarLoop]: Abstraction has 8857 states and 23827 transitions. [2021-07-13 18:58:54,644 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:54,644 INFO L276 IsEmpty]: Start isEmpty. Operand 8857 states and 23827 transitions. [2021-07-13 18:58:54,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:58:54,655 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:54,655 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:54,655 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-07-13 18:58:54,655 INFO L430 AbstractCegarLoop]: === Iteration 87 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:54,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:54,655 INFO L82 PathProgramCache]: Analyzing trace with hash 1390802480, now seen corresponding path program 79 times [2021-07-13 18:58:54,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:54,656 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382785556] [2021-07-13 18:58:54,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:54,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:54,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:54,977 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:54,977 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382785556] [2021-07-13 18:58:54,977 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382785556] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:54,977 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:54,977 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:58:54,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211579191] [2021-07-13 18:58:54,978 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:58:54,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:54,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:58:54,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:58:54,978 INFO L87 Difference]: Start difference. First operand 8857 states and 23827 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:55,772 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 18:58:55,933 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:58:56,118 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 18:58:56,316 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 18:58:56,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:56,509 INFO L93 Difference]: Finished difference Result 24988 states and 65714 transitions. [2021-07-13 18:58:56,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:58:56,509 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:58:56,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:56,546 INFO L225 Difference]: With dead ends: 24988 [2021-07-13 18:58:56,546 INFO L226 Difference]: Without dead ends: 24988 [2021-07-13 18:58:56,547 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1340.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:58:56,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24988 states. [2021-07-13 18:58:56,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24988 to 8873. [2021-07-13 18:58:56,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8873 states, 8871 states have (on average 2.691128395896742) internal successors, (23873), 8872 states have internal predecessors, (23873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:56,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8873 states to 8873 states and 23873 transitions. [2021-07-13 18:58:56,797 INFO L78 Accepts]: Start accepts. Automaton has 8873 states and 23873 transitions. Word has length 114 [2021-07-13 18:58:56,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:56,797 INFO L482 AbstractCegarLoop]: Abstraction has 8873 states and 23873 transitions. [2021-07-13 18:58:56,797 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:56,797 INFO L276 IsEmpty]: Start isEmpty. Operand 8873 states and 23873 transitions. [2021-07-13 18:58:56,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:58:56,807 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:56,807 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:56,807 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-07-13 18:58:56,807 INFO L430 AbstractCegarLoop]: === Iteration 88 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:56,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:56,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1142255500, now seen corresponding path program 80 times [2021-07-13 18:58:56,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:56,807 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405126598] [2021-07-13 18:58:56,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:56,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:57,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:57,120 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:57,120 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405126598] [2021-07-13 18:58:57,120 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405126598] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:57,120 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:57,120 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:58:57,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080765885] [2021-07-13 18:58:57,121 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:58:57,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:57,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:58:57,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:58:57,121 INFO L87 Difference]: Start difference. First operand 8873 states and 23873 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:57,898 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 18:58:58,056 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:58:58,228 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:58:58,424 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:58:58,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:58,572 INFO L93 Difference]: Finished difference Result 22053 states and 58240 transitions. [2021-07-13 18:58:58,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:58:58,572 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:58:58,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:58,603 INFO L225 Difference]: With dead ends: 22053 [2021-07-13 18:58:58,603 INFO L226 Difference]: Without dead ends: 22053 [2021-07-13 18:58:58,603 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1322.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:58:58,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22053 states. [2021-07-13 18:58:58,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22053 to 8829. [2021-07-13 18:58:58,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8829 states, 8827 states have (on average 2.6893621842075452) internal successors, (23739), 8828 states have internal predecessors, (23739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:58,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8829 states to 8829 states and 23739 transitions. [2021-07-13 18:58:58,804 INFO L78 Accepts]: Start accepts. Automaton has 8829 states and 23739 transitions. Word has length 114 [2021-07-13 18:58:58,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:58,804 INFO L482 AbstractCegarLoop]: Abstraction has 8829 states and 23739 transitions. [2021-07-13 18:58:58,804 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:58,804 INFO L276 IsEmpty]: Start isEmpty. Operand 8829 states and 23739 transitions. [2021-07-13 18:58:58,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:58:58,814 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:58,814 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:58,814 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-07-13 18:58:58,814 INFO L430 AbstractCegarLoop]: === Iteration 89 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:58,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:58,814 INFO L82 PathProgramCache]: Analyzing trace with hash 2022603950, now seen corresponding path program 81 times [2021-07-13 18:58:58,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:58,815 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303236502] [2021-07-13 18:58:58,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:59,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:59,130 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:59,130 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303236502] [2021-07-13 18:58:59,130 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303236502] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:59,130 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:59,130 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:58:59,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729367597] [2021-07-13 18:58:59,131 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:58:59,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:59,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:58:59,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:58:59,131 INFO L87 Difference]: Start difference. First operand 8829 states and 23739 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:59,948 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 18:59:00,108 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:59:00,283 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:59:00,479 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:59:00,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:00,641 INFO L93 Difference]: Finished difference Result 21225 states and 56303 transitions. [2021-07-13 18:59:00,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:59:00,642 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:59:00,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:00,674 INFO L225 Difference]: With dead ends: 21225 [2021-07-13 18:59:00,674 INFO L226 Difference]: Without dead ends: 21225 [2021-07-13 18:59:00,674 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1362.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:59:00,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21225 states. [2021-07-13 18:59:00,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21225 to 8893. [2021-07-13 18:59:00,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8893 states, 8891 states have (on average 2.69069845911596) internal successors, (23923), 8892 states have internal predecessors, (23923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:00,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8893 states to 8893 states and 23923 transitions. [2021-07-13 18:59:00,893 INFO L78 Accepts]: Start accepts. Automaton has 8893 states and 23923 transitions. Word has length 114 [2021-07-13 18:59:00,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:00,893 INFO L482 AbstractCegarLoop]: Abstraction has 8893 states and 23923 transitions. [2021-07-13 18:59:00,893 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:00,894 INFO L276 IsEmpty]: Start isEmpty. Operand 8893 states and 23923 transitions. [2021-07-13 18:59:00,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:59:00,903 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:00,903 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:00,903 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-07-13 18:59:00,903 INFO L430 AbstractCegarLoop]: === Iteration 90 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:00,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:00,904 INFO L82 PathProgramCache]: Analyzing trace with hash -62774996, now seen corresponding path program 82 times [2021-07-13 18:59:00,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:00,904 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536496309] [2021-07-13 18:59:00,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:00,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:01,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:01,219 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:01,219 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536496309] [2021-07-13 18:59:01,219 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536496309] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:01,219 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:01,219 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:59:01,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229435356] [2021-07-13 18:59:01,220 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:59:01,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:01,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:59:01,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:59:01,220 INFO L87 Difference]: Start difference. First operand 8893 states and 23923 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:01,995 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 18:59:02,151 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:59:02,366 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 18:59:02,556 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 18:59:02,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:02,716 INFO L93 Difference]: Finished difference Result 22038 states and 58107 transitions. [2021-07-13 18:59:02,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:59:02,716 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:59:02,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:02,746 INFO L225 Difference]: With dead ends: 22038 [2021-07-13 18:59:02,746 INFO L226 Difference]: Without dead ends: 22038 [2021-07-13 18:59:02,746 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1363.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:59:02,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22038 states. [2021-07-13 18:59:02,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22038 to 8877. [2021-07-13 18:59:02,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8877 states, 8875 states have (on average 2.6903661971830988) internal successors, (23877), 8876 states have internal predecessors, (23877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:02,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 23877 transitions. [2021-07-13 18:59:02,951 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 23877 transitions. Word has length 114 [2021-07-13 18:59:02,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:02,951 INFO L482 AbstractCegarLoop]: Abstraction has 8877 states and 23877 transitions. [2021-07-13 18:59:02,951 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:02,951 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 23877 transitions. [2021-07-13 18:59:02,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:59:02,960 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:02,960 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:02,961 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-07-13 18:59:02,961 INFO L430 AbstractCegarLoop]: === Iteration 91 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:02,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:02,961 INFO L82 PathProgramCache]: Analyzing trace with hash -336999794, now seen corresponding path program 83 times [2021-07-13 18:59:02,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:02,961 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792611874] [2021-07-13 18:59:02,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:02,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:03,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:03,273 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:03,273 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792611874] [2021-07-13 18:59:03,273 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792611874] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:03,273 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:03,273 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:59:03,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835413160] [2021-07-13 18:59:03,273 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:59:03,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:03,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:59:03,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:59:03,274 INFO L87 Difference]: Start difference. First operand 8877 states and 23877 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:04,055 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 18:59:04,212 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:59:04,397 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 18:59:04,590 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 18:59:04,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:04,770 INFO L93 Difference]: Finished difference Result 25151 states and 66057 transitions. [2021-07-13 18:59:04,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:59:04,770 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:59:04,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:04,809 INFO L225 Difference]: With dead ends: 25151 [2021-07-13 18:59:04,809 INFO L226 Difference]: Without dead ends: 25151 [2021-07-13 18:59:04,810 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1345.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:59:04,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25151 states. [2021-07-13 18:59:05,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25151 to 8893. [2021-07-13 18:59:05,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8893 states, 8891 states have (on average 2.69069845911596) internal successors, (23923), 8892 states have internal predecessors, (23923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:05,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8893 states to 8893 states and 23923 transitions. [2021-07-13 18:59:05,068 INFO L78 Accepts]: Start accepts. Automaton has 8893 states and 23923 transitions. Word has length 114 [2021-07-13 18:59:05,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:05,068 INFO L482 AbstractCegarLoop]: Abstraction has 8893 states and 23923 transitions. [2021-07-13 18:59:05,068 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:05,068 INFO L276 IsEmpty]: Start isEmpty. Operand 8893 states and 23923 transitions. [2021-07-13 18:59:05,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:59:05,078 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:05,078 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:05,078 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-07-13 18:59:05,078 INFO L430 AbstractCegarLoop]: === Iteration 92 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:05,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:05,078 INFO L82 PathProgramCache]: Analyzing trace with hash -585546774, now seen corresponding path program 84 times [2021-07-13 18:59:05,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:05,079 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244096652] [2021-07-13 18:59:05,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:05,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:05,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:05,470 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:05,470 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244096652] [2021-07-13 18:59:05,470 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244096652] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:05,470 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:05,471 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:59:05,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963193102] [2021-07-13 18:59:05,471 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:59:05,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:05,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:59:05,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:59:05,471 INFO L87 Difference]: Start difference. First operand 8893 states and 23923 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:06,310 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 18:59:06,470 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:59:06,645 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:59:06,843 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:59:07,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:07,013 INFO L93 Difference]: Finished difference Result 22216 states and 58583 transitions. [2021-07-13 18:59:07,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:59:07,013 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:59:07,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:07,045 INFO L225 Difference]: With dead ends: 22216 [2021-07-13 18:59:07,045 INFO L226 Difference]: Without dead ends: 22216 [2021-07-13 18:59:07,045 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1415.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:59:07,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22216 states. [2021-07-13 18:59:07,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22216 to 8861. [2021-07-13 18:59:07,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8861 states, 8859 states have (on average 2.6900327350716786) internal successors, (23831), 8860 states have internal predecessors, (23831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:07,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8861 states to 8861 states and 23831 transitions. [2021-07-13 18:59:07,249 INFO L78 Accepts]: Start accepts. Automaton has 8861 states and 23831 transitions. Word has length 114 [2021-07-13 18:59:07,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:07,249 INFO L482 AbstractCegarLoop]: Abstraction has 8861 states and 23831 transitions. [2021-07-13 18:59:07,250 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:07,250 INFO L276 IsEmpty]: Start isEmpty. Operand 8861 states and 23831 transitions. [2021-07-13 18:59:07,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:59:07,260 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:07,260 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:07,260 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-07-13 18:59:07,260 INFO L430 AbstractCegarLoop]: === Iteration 93 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:07,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:07,260 INFO L82 PathProgramCache]: Analyzing trace with hash 892916012, now seen corresponding path program 85 times [2021-07-13 18:59:07,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:07,260 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241082944] [2021-07-13 18:59:07,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:07,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:07,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:07,649 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:07,649 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241082944] [2021-07-13 18:59:07,649 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241082944] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:07,649 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:07,650 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:59:07,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847707916] [2021-07-13 18:59:07,650 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:59:07,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:07,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:59:07,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:59:07,650 INFO L87 Difference]: Start difference. First operand 8861 states and 23831 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:08,434 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:59:08,607 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:59:08,796 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 18:59:08,996 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 18:59:09,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:09,170 INFO L93 Difference]: Finished difference Result 21348 states and 56474 transitions. [2021-07-13 18:59:09,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:59:09,171 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:59:09,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:09,200 INFO L225 Difference]: With dead ends: 21348 [2021-07-13 18:59:09,200 INFO L226 Difference]: Without dead ends: 21348 [2021-07-13 18:59:09,201 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1401.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:59:09,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21348 states. [2021-07-13 18:59:09,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21348 to 8909. [2021-07-13 18:59:09,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8909 states, 8907 states have (on average 2.6910295273380487) internal successors, (23969), 8908 states have internal predecessors, (23969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:09,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8909 states to 8909 states and 23969 transitions. [2021-07-13 18:59:09,400 INFO L78 Accepts]: Start accepts. Automaton has 8909 states and 23969 transitions. Word has length 114 [2021-07-13 18:59:09,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:09,400 INFO L482 AbstractCegarLoop]: Abstraction has 8909 states and 23969 transitions. [2021-07-13 18:59:09,400 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:09,400 INFO L276 IsEmpty]: Start isEmpty. Operand 8909 states and 23969 transitions. [2021-07-13 18:59:09,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:59:09,410 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:09,411 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:09,411 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-07-13 18:59:09,411 INFO L430 AbstractCegarLoop]: === Iteration 94 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:09,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:09,411 INFO L82 PathProgramCache]: Analyzing trace with hash 644369032, now seen corresponding path program 86 times [2021-07-13 18:59:09,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:09,411 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498731353] [2021-07-13 18:59:09,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:09,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:09,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:09,807 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:09,807 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498731353] [2021-07-13 18:59:09,807 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498731353] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:09,807 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:09,807 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:59:09,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249958212] [2021-07-13 18:59:09,807 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:59:09,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:09,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:59:09,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:59:09,808 INFO L87 Difference]: Start difference. First operand 8909 states and 23969 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:10,672 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:59:10,839 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:59:11,014 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:59:11,213 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:59:11,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:11,362 INFO L93 Difference]: Finished difference Result 21188 states and 56072 transitions. [2021-07-13 18:59:11,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:59:11,362 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:59:11,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:11,392 INFO L225 Difference]: With dead ends: 21188 [2021-07-13 18:59:11,392 INFO L226 Difference]: Without dead ends: 21188 [2021-07-13 18:59:11,392 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1472.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:59:11,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21188 states. [2021-07-13 18:59:11,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21188 to 8893. [2021-07-13 18:59:11,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8893 states, 8891 states have (on average 2.69069845911596) internal successors, (23923), 8892 states have internal predecessors, (23923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:11,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8893 states to 8893 states and 23923 transitions. [2021-07-13 18:59:11,582 INFO L78 Accepts]: Start accepts. Automaton has 8893 states and 23923 transitions. Word has length 114 [2021-07-13 18:59:11,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:11,583 INFO L482 AbstractCegarLoop]: Abstraction has 8893 states and 23923 transitions. [2021-07-13 18:59:11,583 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:11,583 INFO L276 IsEmpty]: Start isEmpty. Operand 8893 states and 23923 transitions. [2021-07-13 18:59:11,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:59:11,592 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:11,592 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:11,592 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-07-13 18:59:11,592 INFO L430 AbstractCegarLoop]: === Iteration 95 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:11,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:11,593 INFO L82 PathProgramCache]: Analyzing trace with hash -512448272, now seen corresponding path program 87 times [2021-07-13 18:59:11,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:11,593 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242199891] [2021-07-13 18:59:11,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:11,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:12,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:12,005 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:12,005 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242199891] [2021-07-13 18:59:12,005 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242199891] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:12,006 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:12,006 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:59:12,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664174580] [2021-07-13 18:59:12,006 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:59:12,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:12,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:59:12,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:59:12,007 INFO L87 Difference]: Start difference. First operand 8893 states and 23923 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:12,802 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:59:12,950 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 18:59:13,137 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:59:13,337 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:59:13,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:13,495 INFO L93 Difference]: Finished difference Result 18621 states and 49526 transitions. [2021-07-13 18:59:13,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:59:13,495 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:59:13,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:13,522 INFO L225 Difference]: With dead ends: 18621 [2021-07-13 18:59:13,522 INFO L226 Difference]: Without dead ends: 18621 [2021-07-13 18:59:13,523 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1421.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:59:13,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18621 states. [2021-07-13 18:59:13,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18621 to 8805. [2021-07-13 18:59:13,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8805 states, 8803 states have (on average 2.6871521072361695) internal successors, (23655), 8804 states have internal predecessors, (23655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:13,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8805 states to 8805 states and 23655 transitions. [2021-07-13 18:59:13,740 INFO L78 Accepts]: Start accepts. Automaton has 8805 states and 23655 transitions. Word has length 114 [2021-07-13 18:59:13,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:13,740 INFO L482 AbstractCegarLoop]: Abstraction has 8805 states and 23655 transitions. [2021-07-13 18:59:13,740 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:13,740 INFO L276 IsEmpty]: Start isEmpty. Operand 8805 states and 23655 transitions. [2021-07-13 18:59:13,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:59:13,750 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:13,751 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:13,751 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-07-13 18:59:13,751 INFO L430 AbstractCegarLoop]: === Iteration 96 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:13,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:13,751 INFO L82 PathProgramCache]: Analyzing trace with hash 2043509934, now seen corresponding path program 88 times [2021-07-13 18:59:13,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:13,751 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899543108] [2021-07-13 18:59:13,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:13,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:14,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:14,111 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:14,111 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899543108] [2021-07-13 18:59:14,111 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899543108] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:14,111 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:14,112 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:59:14,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545840266] [2021-07-13 18:59:14,112 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:59:14,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:14,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:59:14,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:59:14,112 INFO L87 Difference]: Start difference. First operand 8805 states and 23655 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:14,897 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:59:15,076 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:59:15,251 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:59:15,453 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:59:15,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:15,654 INFO L93 Difference]: Finished difference Result 28980 states and 76697 transitions. [2021-07-13 18:59:15,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:59:15,655 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:59:15,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:15,706 INFO L225 Difference]: With dead ends: 28980 [2021-07-13 18:59:15,706 INFO L226 Difference]: Without dead ends: 28980 [2021-07-13 18:59:15,706 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1350.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:59:15,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28980 states. [2021-07-13 18:59:15,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28980 to 8901. [2021-07-13 18:59:15,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8901 states, 8899 states have (on average 2.6891785593886954) internal successors, (23931), 8900 states have internal predecessors, (23931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:15,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8901 states to 8901 states and 23931 transitions. [2021-07-13 18:59:15,973 INFO L78 Accepts]: Start accepts. Automaton has 8901 states and 23931 transitions. Word has length 114 [2021-07-13 18:59:15,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:15,973 INFO L482 AbstractCegarLoop]: Abstraction has 8901 states and 23931 transitions. [2021-07-13 18:59:15,973 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:15,973 INFO L276 IsEmpty]: Start isEmpty. Operand 8901 states and 23931 transitions. [2021-07-13 18:59:15,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:59:15,983 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:15,983 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:15,983 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-07-13 18:59:15,983 INFO L430 AbstractCegarLoop]: === Iteration 97 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:15,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:15,983 INFO L82 PathProgramCache]: Analyzing trace with hash -41869012, now seen corresponding path program 89 times [2021-07-13 18:59:15,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:15,984 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759421332] [2021-07-13 18:59:15,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:15,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:16,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:16,374 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:16,374 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759421332] [2021-07-13 18:59:16,374 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759421332] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:16,374 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:16,374 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:59:16,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81779823] [2021-07-13 18:59:16,375 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:59:16,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:16,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:59:16,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:59:16,375 INFO L87 Difference]: Start difference. First operand 8901 states and 23931 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:17,160 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:59:17,338 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:59:17,528 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 18:59:17,726 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 18:59:17,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:17,942 INFO L93 Difference]: Finished difference Result 28558 states and 75183 transitions. [2021-07-13 18:59:17,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:59:17,942 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:59:17,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:17,986 INFO L225 Difference]: With dead ends: 28558 [2021-07-13 18:59:17,987 INFO L226 Difference]: Without dead ends: 28558 [2021-07-13 18:59:17,987 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1345.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:59:18,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28558 states. [2021-07-13 18:59:18,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28558 to 8885. [2021-07-13 18:59:18,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8885 states, 8883 states have (on average 2.688843859056625) internal successors, (23885), 8884 states have internal predecessors, (23885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:18,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8885 states to 8885 states and 23885 transitions. [2021-07-13 18:59:18,242 INFO L78 Accepts]: Start accepts. Automaton has 8885 states and 23885 transitions. Word has length 114 [2021-07-13 18:59:18,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:18,243 INFO L482 AbstractCegarLoop]: Abstraction has 8885 states and 23885 transitions. [2021-07-13 18:59:18,243 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:18,243 INFO L276 IsEmpty]: Start isEmpty. Operand 8885 states and 23885 transitions. [2021-07-13 18:59:18,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:59:18,259 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:18,260 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:18,260 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-07-13 18:59:18,260 INFO L430 AbstractCegarLoop]: === Iteration 98 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:18,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:18,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1680982386, now seen corresponding path program 90 times [2021-07-13 18:59:18,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:18,260 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184657004] [2021-07-13 18:59:18,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:18,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:18,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:18,605 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:18,605 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184657004] [2021-07-13 18:59:18,605 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184657004] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:18,605 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:18,605 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:59:18,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242780820] [2021-07-13 18:59:18,605 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:59:18,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:18,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:59:18,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:59:18,606 INFO L87 Difference]: Start difference. First operand 8885 states and 23885 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:19,417 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:59:19,568 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 18:59:19,758 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:59:19,961 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:59:20,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:20,161 INFO L93 Difference]: Finished difference Result 26036 states and 68676 transitions. [2021-07-13 18:59:20,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:59:20,162 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:59:20,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:20,205 INFO L225 Difference]: With dead ends: 26036 [2021-07-13 18:59:20,205 INFO L226 Difference]: Without dead ends: 26036 [2021-07-13 18:59:20,205 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1393.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:59:20,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26036 states. [2021-07-13 18:59:20,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26036 to 8853. [2021-07-13 18:59:20,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8853 states, 8851 states have (on average 2.6881708281550107) internal successors, (23793), 8852 states have internal predecessors, (23793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:20,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8853 states to 8853 states and 23793 transitions. [2021-07-13 18:59:20,454 INFO L78 Accepts]: Start accepts. Automaton has 8853 states and 23793 transitions. Word has length 114 [2021-07-13 18:59:20,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:20,454 INFO L482 AbstractCegarLoop]: Abstraction has 8853 states and 23793 transitions. [2021-07-13 18:59:20,455 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:20,455 INFO L276 IsEmpty]: Start isEmpty. Operand 8853 states and 23793 transitions. [2021-07-13 18:59:20,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:59:20,465 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:20,465 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:20,465 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-07-13 18:59:20,465 INFO L430 AbstractCegarLoop]: === Iteration 99 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:20,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:20,466 INFO L82 PathProgramCache]: Analyzing trace with hash -1382581712, now seen corresponding path program 91 times [2021-07-13 18:59:20,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:20,466 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075837450] [2021-07-13 18:59:20,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:20,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:20,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:20,811 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:20,811 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075837450] [2021-07-13 18:59:20,811 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075837450] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:20,811 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:20,811 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:59:20,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089165277] [2021-07-13 18:59:20,811 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:59:20,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:20,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:59:20,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:59:20,812 INFO L87 Difference]: Start difference. First operand 8853 states and 23793 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:21,612 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 18:59:21,774 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:59:21,987 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:59:22,186 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:59:22,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:22,381 INFO L93 Difference]: Finished difference Result 25846 states and 68162 transitions. [2021-07-13 18:59:22,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:59:22,381 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:59:22,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:22,420 INFO L225 Difference]: With dead ends: 25846 [2021-07-13 18:59:22,420 INFO L226 Difference]: Without dead ends: 25846 [2021-07-13 18:59:22,420 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1376.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:59:22,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25846 states. [2021-07-13 18:59:22,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25846 to 8885. [2021-07-13 18:59:22,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8885 states, 8883 states have (on average 2.688843859056625) internal successors, (23885), 8884 states have internal predecessors, (23885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:22,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8885 states to 8885 states and 23885 transitions. [2021-07-13 18:59:22,645 INFO L78 Accepts]: Start accepts. Automaton has 8885 states and 23885 transitions. Word has length 114 [2021-07-13 18:59:22,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:22,645 INFO L482 AbstractCegarLoop]: Abstraction has 8885 states and 23885 transitions. [2021-07-13 18:59:22,645 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:22,645 INFO L276 IsEmpty]: Start isEmpty. Operand 8885 states and 23885 transitions. [2021-07-13 18:59:22,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:59:22,655 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:22,655 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:22,655 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-07-13 18:59:22,655 INFO L430 AbstractCegarLoop]: === Iteration 100 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:22,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:22,655 INFO L82 PathProgramCache]: Analyzing trace with hash 827006638, now seen corresponding path program 92 times [2021-07-13 18:59:22,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:22,655 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525423288] [2021-07-13 18:59:22,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:22,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:22,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:22,972 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:22,972 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525423288] [2021-07-13 18:59:22,972 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525423288] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:22,972 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:22,972 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:59:22,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818057740] [2021-07-13 18:59:22,973 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:59:22,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:22,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:59:22,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:59:22,973 INFO L87 Difference]: Start difference. First operand 8885 states and 23885 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:23,748 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 18:59:23,905 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:59:24,093 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 18:59:24,284 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 18:59:24,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:24,471 INFO L93 Difference]: Finished difference Result 26659 states and 69966 transitions. [2021-07-13 18:59:24,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:59:24,472 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:59:24,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:24,512 INFO L225 Difference]: With dead ends: 26659 [2021-07-13 18:59:24,512 INFO L226 Difference]: Without dead ends: 26659 [2021-07-13 18:59:24,512 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1338.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:59:24,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26659 states. [2021-07-13 18:59:24,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26659 to 8869. [2021-07-13 18:59:24,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8869 states, 8867 states have (on average 2.688507950828916) internal successors, (23839), 8868 states have internal predecessors, (23839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:24,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8869 states to 8869 states and 23839 transitions. [2021-07-13 18:59:24,779 INFO L78 Accepts]: Start accepts. Automaton has 8869 states and 23839 transitions. Word has length 114 [2021-07-13 18:59:24,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:24,779 INFO L482 AbstractCegarLoop]: Abstraction has 8869 states and 23839 transitions. [2021-07-13 18:59:24,779 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:24,780 INFO L276 IsEmpty]: Start isEmpty. Operand 8869 states and 23839 transitions. [2021-07-13 18:59:24,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:59:24,790 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:24,790 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:24,790 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-07-13 18:59:24,790 INFO L430 AbstractCegarLoop]: === Iteration 101 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:24,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:24,790 INFO L82 PathProgramCache]: Analyzing trace with hash 552781840, now seen corresponding path program 93 times [2021-07-13 18:59:24,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:24,790 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562509236] [2021-07-13 18:59:24,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:24,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:25,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:25,109 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:25,109 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562509236] [2021-07-13 18:59:25,109 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562509236] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:25,109 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:25,109 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:59:25,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590006807] [2021-07-13 18:59:25,110 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:59:25,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:25,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:59:25,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:59:25,110 INFO L87 Difference]: Start difference. First operand 8869 states and 23839 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:25,900 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 18:59:26,062 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:59:26,248 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 18:59:26,444 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 18:59:26,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:26,649 INFO L93 Difference]: Finished difference Result 25985 states and 68379 transitions. [2021-07-13 18:59:26,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:59:26,649 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:59:26,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:26,688 INFO L225 Difference]: With dead ends: 25985 [2021-07-13 18:59:26,689 INFO L226 Difference]: Without dead ends: 25985 [2021-07-13 18:59:26,689 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1331.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:59:26,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25985 states. [2021-07-13 18:59:26,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25985 to 8885. [2021-07-13 18:59:26,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8885 states, 8883 states have (on average 2.688843859056625) internal successors, (23885), 8884 states have internal predecessors, (23885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:26,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8885 states to 8885 states and 23885 transitions. [2021-07-13 18:59:26,918 INFO L78 Accepts]: Start accepts. Automaton has 8885 states and 23885 transitions. Word has length 114 [2021-07-13 18:59:26,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:26,919 INFO L482 AbstractCegarLoop]: Abstraction has 8885 states and 23885 transitions. [2021-07-13 18:59:26,919 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:26,919 INFO L276 IsEmpty]: Start isEmpty. Operand 8885 states and 23885 transitions. [2021-07-13 18:59:26,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:59:26,928 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:26,928 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:26,929 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-07-13 18:59:26,929 INFO L430 AbstractCegarLoop]: === Iteration 102 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:26,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:26,929 INFO L82 PathProgramCache]: Analyzing trace with hash 304234860, now seen corresponding path program 94 times [2021-07-13 18:59:26,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:26,929 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484448228] [2021-07-13 18:59:26,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:26,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:27,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:27,373 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:27,373 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484448228] [2021-07-13 18:59:27,373 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484448228] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:27,373 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:27,374 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:59:27,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510297934] [2021-07-13 18:59:27,374 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:59:27,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:27,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:59:27,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:59:27,375 INFO L87 Difference]: Start difference. First operand 8885 states and 23885 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:28,144 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 18:59:28,303 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:59:28,477 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:59:28,672 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:59:28,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:28,837 INFO L93 Difference]: Finished difference Result 23332 states and 61619 transitions. [2021-07-13 18:59:28,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:59:28,838 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:59:28,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:28,871 INFO L225 Difference]: With dead ends: 23332 [2021-07-13 18:59:28,871 INFO L226 Difference]: Without dead ends: 23332 [2021-07-13 18:59:28,871 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1383.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:59:28,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23332 states. [2021-07-13 18:59:29,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23332 to 8821. [2021-07-13 18:59:29,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8821 states, 8819 states have (on average 2.687492913028688) internal successors, (23701), 8820 states have internal predecessors, (23701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:29,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8821 states to 8821 states and 23701 transitions. [2021-07-13 18:59:29,085 INFO L78 Accepts]: Start accepts. Automaton has 8821 states and 23701 transitions. Word has length 114 [2021-07-13 18:59:29,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:29,085 INFO L482 AbstractCegarLoop]: Abstraction has 8821 states and 23701 transitions. [2021-07-13 18:59:29,085 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:29,085 INFO L276 IsEmpty]: Start isEmpty. Operand 8821 states and 23701 transitions. [2021-07-13 18:59:29,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:59:29,095 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:29,095 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:29,095 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-07-13 18:59:29,095 INFO L430 AbstractCegarLoop]: === Iteration 103 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:29,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:29,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1948831696, now seen corresponding path program 95 times [2021-07-13 18:59:29,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:29,096 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020170498] [2021-07-13 18:59:29,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:29,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:29,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:29,432 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:29,432 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020170498] [2021-07-13 18:59:29,432 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020170498] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:29,432 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:29,432 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:59:29,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593253405] [2021-07-13 18:59:29,432 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:59:29,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:29,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:59:29,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:59:29,433 INFO L87 Difference]: Start difference. First operand 8821 states and 23701 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:29,965 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-07-13 18:59:30,229 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:59:30,403 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:59:30,578 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:59:30,775 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:59:30,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:30,946 INFO L93 Difference]: Finished difference Result 23548 states and 62419 transitions. [2021-07-13 18:59:30,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:59:30,947 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:59:30,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:30,981 INFO L225 Difference]: With dead ends: 23548 [2021-07-13 18:59:30,981 INFO L226 Difference]: Without dead ends: 23548 [2021-07-13 18:59:30,981 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1374.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:59:31,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23548 states. [2021-07-13 18:59:31,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23548 to 8885. [2021-07-13 18:59:31,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8885 states, 8883 states have (on average 2.688843859056625) internal successors, (23885), 8884 states have internal predecessors, (23885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:31,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8885 states to 8885 states and 23885 transitions. [2021-07-13 18:59:31,210 INFO L78 Accepts]: Start accepts. Automaton has 8885 states and 23885 transitions. Word has length 114 [2021-07-13 18:59:31,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:31,210 INFO L482 AbstractCegarLoop]: Abstraction has 8885 states and 23885 transitions. [2021-07-13 18:59:31,210 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:31,210 INFO L276 IsEmpty]: Start isEmpty. Operand 8885 states and 23885 transitions. [2021-07-13 18:59:31,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:59:31,220 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:31,220 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:31,220 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-07-13 18:59:31,220 INFO L430 AbstractCegarLoop]: === Iteration 104 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:31,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:31,221 INFO L82 PathProgramCache]: Analyzing trace with hash -136547250, now seen corresponding path program 96 times [2021-07-13 18:59:31,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:31,221 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190548371] [2021-07-13 18:59:31,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:31,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:31,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:31,557 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:31,557 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190548371] [2021-07-13 18:59:31,557 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190548371] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:31,558 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:31,558 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:59:31,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891573556] [2021-07-13 18:59:31,558 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:59:31,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:31,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:59:31,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:59:31,558 INFO L87 Difference]: Start difference. First operand 8885 states and 23885 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:32,343 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:59:32,523 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:59:32,715 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 18:59:32,941 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 18:59:33,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:33,123 INFO L93 Difference]: Finished difference Result 23126 states and 60905 transitions. [2021-07-13 18:59:33,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:59:33,123 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:59:33,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:33,159 INFO L225 Difference]: With dead ends: 23126 [2021-07-13 18:59:33,159 INFO L226 Difference]: Without dead ends: 23126 [2021-07-13 18:59:33,160 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1388.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:59:33,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23126 states. [2021-07-13 18:59:33,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23126 to 8869. [2021-07-13 18:59:33,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8869 states, 8867 states have (on average 2.688507950828916) internal successors, (23839), 8868 states have internal predecessors, (23839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:33,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8869 states to 8869 states and 23839 transitions. [2021-07-13 18:59:33,368 INFO L78 Accepts]: Start accepts. Automaton has 8869 states and 23839 transitions. Word has length 114 [2021-07-13 18:59:33,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:33,369 INFO L482 AbstractCegarLoop]: Abstraction has 8869 states and 23839 transitions. [2021-07-13 18:59:33,369 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:33,369 INFO L276 IsEmpty]: Start isEmpty. Operand 8869 states and 23839 transitions. [2021-07-13 18:59:33,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:59:33,379 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:33,379 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:33,379 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-07-13 18:59:33,379 INFO L430 AbstractCegarLoop]: === Iteration 105 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:33,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:33,379 INFO L82 PathProgramCache]: Analyzing trace with hash -1775660624, now seen corresponding path program 97 times [2021-07-13 18:59:33,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:33,379 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516718276] [2021-07-13 18:59:33,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:33,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:33,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:33,743 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:33,743 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516718276] [2021-07-13 18:59:33,743 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516718276] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:33,743 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:33,743 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:59:33,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064776919] [2021-07-13 18:59:33,743 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:59:33,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:33,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:59:33,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:59:33,744 INFO L87 Difference]: Start difference. First operand 8869 states and 23839 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:34,514 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:59:34,665 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 18:59:34,859 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:59:35,063 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:59:35,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:35,235 INFO L93 Difference]: Finished difference Result 23108 states and 60959 transitions. [2021-07-13 18:59:35,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:59:35,235 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:59:35,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:35,271 INFO L225 Difference]: With dead ends: 23108 [2021-07-13 18:59:35,271 INFO L226 Difference]: Without dead ends: 23108 [2021-07-13 18:59:35,271 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1353.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:59:35,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23108 states. [2021-07-13 18:59:35,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23108 to 8837. [2021-07-13 18:59:35,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8837 states, 8835 states have (on average 2.687832484436899) internal successors, (23747), 8836 states have internal predecessors, (23747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:35,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8837 states to 8837 states and 23747 transitions. [2021-07-13 18:59:35,527 INFO L78 Accepts]: Start accepts. Automaton has 8837 states and 23747 transitions. Word has length 114 [2021-07-13 18:59:35,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:35,528 INFO L482 AbstractCegarLoop]: Abstraction has 8837 states and 23747 transitions. [2021-07-13 18:59:35,528 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:35,528 INFO L276 IsEmpty]: Start isEmpty. Operand 8837 states and 23747 transitions. [2021-07-13 18:59:35,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:59:35,538 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:35,538 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:35,538 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-07-13 18:59:35,538 INFO L430 AbstractCegarLoop]: === Iteration 106 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:35,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:35,539 INFO L82 PathProgramCache]: Analyzing trace with hash 2140489358, now seen corresponding path program 98 times [2021-07-13 18:59:35,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:35,539 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237281982] [2021-07-13 18:59:35,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:35,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:35,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:35,897 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:35,897 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237281982] [2021-07-13 18:59:35,897 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237281982] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:35,898 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:35,898 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:59:35,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817889537] [2021-07-13 18:59:35,898 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:59:35,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:35,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:59:35,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:59:35,898 INFO L87 Difference]: Start difference. First operand 8837 states and 23747 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:36,684 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-13 18:59:36,834 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 18:59:37,032 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:59:37,235 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:59:37,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:37,399 INFO L93 Difference]: Finished difference Result 19834 states and 52536 transitions. [2021-07-13 18:59:37,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:59:37,399 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:59:37,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:37,429 INFO L225 Difference]: With dead ends: 19834 [2021-07-13 18:59:37,429 INFO L226 Difference]: Without dead ends: 19834 [2021-07-13 18:59:37,429 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1345.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:59:37,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19834 states. [2021-07-13 18:59:37,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19834 to 8781. [2021-07-13 18:59:37,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8781 states, 8779 states have (on average 2.6862968447431372) internal successors, (23583), 8780 states have internal predecessors, (23583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:37,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8781 states to 8781 states and 23583 transitions. [2021-07-13 18:59:37,633 INFO L78 Accepts]: Start accepts. Automaton has 8781 states and 23583 transitions. Word has length 114 [2021-07-13 18:59:37,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:37,633 INFO L482 AbstractCegarLoop]: Abstraction has 8781 states and 23583 transitions. [2021-07-13 18:59:37,633 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:37,633 INFO L276 IsEmpty]: Start isEmpty. Operand 8781 states and 23583 transitions. [2021-07-13 18:59:37,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:59:37,642 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:37,643 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:37,643 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-07-13 18:59:37,643 INFO L430 AbstractCegarLoop]: === Iteration 107 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:37,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:37,643 INFO L82 PathProgramCache]: Analyzing trace with hash -88893616, now seen corresponding path program 99 times [2021-07-13 18:59:37,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:37,643 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972036173] [2021-07-13 18:59:37,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:37,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:37,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:37,987 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:37,987 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972036173] [2021-07-13 18:59:37,988 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972036173] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:37,988 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:37,988 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:59:37,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316716295] [2021-07-13 18:59:37,988 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:59:37,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:37,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:59:37,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:59:37,988 INFO L87 Difference]: Start difference. First operand 8781 states and 23583 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:38,785 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:59:38,958 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:59:39,133 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:59:39,334 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:59:39,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:39,519 INFO L93 Difference]: Finished difference Result 24669 states and 65646 transitions. [2021-07-13 18:59:39,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:59:39,520 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:59:39,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:39,557 INFO L225 Difference]: With dead ends: 24669 [2021-07-13 18:59:39,557 INFO L226 Difference]: Without dead ends: 24669 [2021-07-13 18:59:39,557 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1374.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:59:39,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24669 states. [2021-07-13 18:59:39,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24669 to 8893. [2021-07-13 18:59:39,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8893 states, 8891 states have (on average 2.6886739399392643) internal successors, (23905), 8892 states have internal predecessors, (23905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:39,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8893 states to 8893 states and 23905 transitions. [2021-07-13 18:59:39,778 INFO L78 Accepts]: Start accepts. Automaton has 8893 states and 23905 transitions. Word has length 114 [2021-07-13 18:59:39,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:39,778 INFO L482 AbstractCegarLoop]: Abstraction has 8893 states and 23905 transitions. [2021-07-13 18:59:39,778 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:39,778 INFO L276 IsEmpty]: Start isEmpty. Operand 8893 states and 23905 transitions. [2021-07-13 18:59:39,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:59:39,788 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:39,788 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:39,788 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-07-13 18:59:39,788 INFO L430 AbstractCegarLoop]: === Iteration 108 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:39,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:39,788 INFO L82 PathProgramCache]: Analyzing trace with hash 2120694734, now seen corresponding path program 100 times [2021-07-13 18:59:39,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:39,788 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122156164] [2021-07-13 18:59:39,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:39,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:40,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:40,122 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:40,122 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122156164] [2021-07-13 18:59:40,122 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122156164] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:40,123 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:40,123 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:59:40,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000638573] [2021-07-13 18:59:40,123 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:59:40,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:40,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:59:40,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:59:40,123 INFO L87 Difference]: Start difference. First operand 8893 states and 23905 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:40,892 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:59:41,064 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:59:41,280 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 18:59:41,476 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 18:59:41,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:41,649 INFO L93 Difference]: Finished difference Result 24247 states and 64132 transitions. [2021-07-13 18:59:41,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:59:41,650 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:59:41,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:41,683 INFO L225 Difference]: With dead ends: 24247 [2021-07-13 18:59:41,684 INFO L226 Difference]: Without dead ends: 24247 [2021-07-13 18:59:41,684 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1384.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:59:41,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24247 states. [2021-07-13 18:59:41,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24247 to 8877. [2021-07-13 18:59:41,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8877 states, 8875 states have (on average 2.688338028169014) internal successors, (23859), 8876 states have internal predecessors, (23859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:41,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 23859 transitions. [2021-07-13 18:59:41,930 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 23859 transitions. Word has length 114 [2021-07-13 18:59:41,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:41,930 INFO L482 AbstractCegarLoop]: Abstraction has 8877 states and 23859 transitions. [2021-07-13 18:59:41,930 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:41,930 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 23859 transitions. [2021-07-13 18:59:41,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:59:41,941 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:41,942 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:41,942 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-07-13 18:59:41,942 INFO L430 AbstractCegarLoop]: === Iteration 109 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:41,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:41,942 INFO L82 PathProgramCache]: Analyzing trace with hash 481581360, now seen corresponding path program 101 times [2021-07-13 18:59:41,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:41,942 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249789463] [2021-07-13 18:59:41,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:41,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:42,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:42,274 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:42,274 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249789463] [2021-07-13 18:59:42,274 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249789463] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:42,274 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:42,275 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:59:42,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421113304] [2021-07-13 18:59:42,275 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:59:42,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:42,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:59:42,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:59:42,275 INFO L87 Difference]: Start difference. First operand 8877 states and 23859 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:43,046 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:59:43,198 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 18:59:43,391 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:59:43,596 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:59:43,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:43,771 INFO L93 Difference]: Finished difference Result 21725 states and 57625 transitions. [2021-07-13 18:59:43,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:59:43,771 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:59:43,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:43,803 INFO L225 Difference]: With dead ends: 21725 [2021-07-13 18:59:43,803 INFO L226 Difference]: Without dead ends: 21725 [2021-07-13 18:59:43,803 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1337.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:59:43,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21725 states. [2021-07-13 18:59:44,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21725 to 8845. [2021-07-13 18:59:44,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8845 states, 8843 states have (on average 2.687662557955445) internal successors, (23767), 8844 states have internal predecessors, (23767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:44,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8845 states to 8845 states and 23767 transitions. [2021-07-13 18:59:44,040 INFO L78 Accepts]: Start accepts. Automaton has 8845 states and 23767 transitions. Word has length 114 [2021-07-13 18:59:44,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:44,041 INFO L482 AbstractCegarLoop]: Abstraction has 8845 states and 23767 transitions. [2021-07-13 18:59:44,041 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:44,041 INFO L276 IsEmpty]: Start isEmpty. Operand 8845 states and 23767 transitions. [2021-07-13 18:59:44,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:59:44,051 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:44,052 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:44,052 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-07-13 18:59:44,052 INFO L430 AbstractCegarLoop]: === Iteration 110 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:44,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:44,052 INFO L82 PathProgramCache]: Analyzing trace with hash 779982034, now seen corresponding path program 102 times [2021-07-13 18:59:44,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:44,052 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700324669] [2021-07-13 18:59:44,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:44,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:44,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:44,380 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:44,380 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700324669] [2021-07-13 18:59:44,380 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700324669] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:44,380 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:44,380 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:59:44,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076157373] [2021-07-13 18:59:44,380 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:59:44,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:44,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:59:44,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:59:44,381 INFO L87 Difference]: Start difference. First operand 8845 states and 23767 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:45,158 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 18:59:45,315 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:59:45,488 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:59:45,683 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:59:45,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:45,851 INFO L93 Difference]: Finished difference Result 21535 states and 57111 transitions. [2021-07-13 18:59:45,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:59:45,852 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:59:45,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:45,882 INFO L225 Difference]: With dead ends: 21535 [2021-07-13 18:59:45,882 INFO L226 Difference]: Without dead ends: 21535 [2021-07-13 18:59:45,883 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1329.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:59:45,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21535 states. [2021-07-13 18:59:46,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21535 to 8877. [2021-07-13 18:59:46,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8877 states, 8875 states have (on average 2.688338028169014) internal successors, (23859), 8876 states have internal predecessors, (23859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:46,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 23859 transitions. [2021-07-13 18:59:46,080 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 23859 transitions. Word has length 114 [2021-07-13 18:59:46,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:46,080 INFO L482 AbstractCegarLoop]: Abstraction has 8877 states and 23859 transitions. [2021-07-13 18:59:46,080 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:46,080 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 23859 transitions. [2021-07-13 18:59:46,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:59:46,090 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:46,090 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:46,090 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-07-13 18:59:46,090 INFO L430 AbstractCegarLoop]: === Iteration 111 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:46,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:46,091 INFO L82 PathProgramCache]: Analyzing trace with hash -1305396912, now seen corresponding path program 103 times [2021-07-13 18:59:46,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:46,091 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658239769] [2021-07-13 18:59:46,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:46,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:46,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:46,535 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:46,536 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658239769] [2021-07-13 18:59:46,536 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658239769] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:46,536 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:46,536 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:59:46,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459349078] [2021-07-13 18:59:46,536 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:59:46,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:46,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:59:46,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:59:46,536 INFO L87 Difference]: Start difference. First operand 8877 states and 23859 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:47,334 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 18:59:47,492 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:59:47,685 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 18:59:47,880 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 18:59:48,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:48,068 INFO L93 Difference]: Finished difference Result 22348 states and 58915 transitions. [2021-07-13 18:59:48,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:59:48,069 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:59:48,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:48,100 INFO L225 Difference]: With dead ends: 22348 [2021-07-13 18:59:48,100 INFO L226 Difference]: Without dead ends: 22348 [2021-07-13 18:59:48,100 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1463.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:59:48,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22348 states. [2021-07-13 18:59:48,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22348 to 8861. [2021-07-13 18:59:48,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8861 states, 8859 states have (on average 2.68800090303646) internal successors, (23813), 8860 states have internal predecessors, (23813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:48,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8861 states to 8861 states and 23813 transitions. [2021-07-13 18:59:48,310 INFO L78 Accepts]: Start accepts. Automaton has 8861 states and 23813 transitions. Word has length 114 [2021-07-13 18:59:48,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:48,310 INFO L482 AbstractCegarLoop]: Abstraction has 8861 states and 23813 transitions. [2021-07-13 18:59:48,310 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:48,310 INFO L276 IsEmpty]: Start isEmpty. Operand 8861 states and 23813 transitions. [2021-07-13 18:59:48,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:59:48,320 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:48,320 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:48,321 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-07-13 18:59:48,321 INFO L430 AbstractCegarLoop]: === Iteration 112 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:48,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:48,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1579621710, now seen corresponding path program 104 times [2021-07-13 18:59:48,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:48,321 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382688222] [2021-07-13 18:59:48,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:48,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:48,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:48,644 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:48,644 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382688222] [2021-07-13 18:59:48,644 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382688222] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:48,644 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:48,644 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:59:48,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673455625] [2021-07-13 18:59:48,645 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:59:48,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:48,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:59:48,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:59:48,645 INFO L87 Difference]: Start difference. First operand 8861 states and 23813 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:49,471 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 18:59:49,627 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:59:49,812 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 18:59:50,003 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 18:59:50,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:50,162 INFO L93 Difference]: Finished difference Result 21674 states and 57328 transitions. [2021-07-13 18:59:50,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:59:50,163 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:59:50,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:50,194 INFO L225 Difference]: With dead ends: 21674 [2021-07-13 18:59:50,194 INFO L226 Difference]: Without dead ends: 21674 [2021-07-13 18:59:50,195 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1378.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:59:50,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21674 states. [2021-07-13 18:59:50,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21674 to 8877. [2021-07-13 18:59:50,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8877 states, 8875 states have (on average 2.688338028169014) internal successors, (23859), 8876 states have internal predecessors, (23859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:50,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 23859 transitions. [2021-07-13 18:59:50,400 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 23859 transitions. Word has length 114 [2021-07-13 18:59:50,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:50,401 INFO L482 AbstractCegarLoop]: Abstraction has 8877 states and 23859 transitions. [2021-07-13 18:59:50,401 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:50,401 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 23859 transitions. [2021-07-13 18:59:50,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:59:50,411 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:50,411 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:50,411 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-07-13 18:59:50,411 INFO L430 AbstractCegarLoop]: === Iteration 113 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:50,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:50,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1828168690, now seen corresponding path program 105 times [2021-07-13 18:59:50,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:50,412 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127333863] [2021-07-13 18:59:50,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:50,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:50,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:50,718 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:50,718 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127333863] [2021-07-13 18:59:50,718 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127333863] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:50,718 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:50,718 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:59:50,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739681924] [2021-07-13 18:59:50,718 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:59:50,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:50,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:59:50,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:59:50,719 INFO L87 Difference]: Start difference. First operand 8877 states and 23859 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:51,499 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 18:59:51,659 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:59:51,834 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:59:52,029 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:59:52,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:52,183 INFO L93 Difference]: Finished difference Result 19021 states and 50568 transitions. [2021-07-13 18:59:52,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:59:52,183 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:59:52,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:52,212 INFO L225 Difference]: With dead ends: 19021 [2021-07-13 18:59:52,212 INFO L226 Difference]: Without dead ends: 19021 [2021-07-13 18:59:52,212 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1332.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:59:52,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19021 states. [2021-07-13 18:59:52,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19021 to 8813. [2021-07-13 18:59:52,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8813 states, 8811 states have (on average 2.6869821813642036) internal successors, (23675), 8812 states have internal predecessors, (23675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:52,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8813 states to 8813 states and 23675 transitions. [2021-07-13 18:59:52,415 INFO L78 Accepts]: Start accepts. Automaton has 8813 states and 23675 transitions. Word has length 114 [2021-07-13 18:59:52,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:52,416 INFO L482 AbstractCegarLoop]: Abstraction has 8813 states and 23675 transitions. [2021-07-13 18:59:52,416 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:52,416 INFO L276 IsEmpty]: Start isEmpty. Operand 8813 states and 23675 transitions. [2021-07-13 18:59:52,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:59:52,426 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:52,426 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:52,426 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-07-13 18:59:52,426 INFO L430 AbstractCegarLoop]: === Iteration 114 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:52,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:52,426 INFO L82 PathProgramCache]: Analyzing trace with hash -183571854, now seen corresponding path program 106 times [2021-07-13 18:59:52,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:52,426 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268472871] [2021-07-13 18:59:52,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:52,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:52,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:52,761 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:52,761 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268472871] [2021-07-13 18:59:52,761 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268472871] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:52,761 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:52,761 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:59:52,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663777737] [2021-07-13 18:59:52,762 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:59:52,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:52,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:59:52,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:59:52,762 INFO L87 Difference]: Start difference. First operand 8813 states and 23675 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:53,552 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:59:53,735 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:59:53,918 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:59:54,121 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:59:54,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:54,315 INFO L93 Difference]: Finished difference Result 23970 states and 63549 transitions. [2021-07-13 18:59:54,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:59:54,315 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:59:54,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:54,349 INFO L225 Difference]: With dead ends: 23970 [2021-07-13 18:59:54,349 INFO L226 Difference]: Without dead ends: 23970 [2021-07-13 18:59:54,350 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1356.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:59:54,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23970 states. [2021-07-13 18:59:54,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23970 to 8877. [2021-07-13 18:59:54,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8877 states, 8875 states have (on average 2.688338028169014) internal successors, (23859), 8876 states have internal predecessors, (23859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:54,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 23859 transitions. [2021-07-13 18:59:54,575 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 23859 transitions. Word has length 114 [2021-07-13 18:59:54,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:54,575 INFO L482 AbstractCegarLoop]: Abstraction has 8877 states and 23859 transitions. [2021-07-13 18:59:54,575 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:54,575 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 23859 transitions. [2021-07-13 18:59:54,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:59:54,585 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:54,586 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:54,586 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-07-13 18:59:54,586 INFO L430 AbstractCegarLoop]: === Iteration 115 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:54,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:54,586 INFO L82 PathProgramCache]: Analyzing trace with hash 2026016496, now seen corresponding path program 107 times [2021-07-13 18:59:54,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:54,586 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777700721] [2021-07-13 18:59:54,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:54,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:54,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:54,984 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:54,984 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777700721] [2021-07-13 18:59:54,984 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777700721] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:54,985 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:54,985 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:59:54,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007877519] [2021-07-13 18:59:54,985 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:59:54,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:54,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:59:54,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:59:54,985 INFO L87 Difference]: Start difference. First operand 8877 states and 23859 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:55,751 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:59:55,929 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 18:59:56,118 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 18:59:56,310 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 18:59:56,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:56,487 INFO L93 Difference]: Finished difference Result 23548 states and 62035 transitions. [2021-07-13 18:59:56,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:59:56,487 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:59:56,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:56,521 INFO L225 Difference]: With dead ends: 23548 [2021-07-13 18:59:56,521 INFO L226 Difference]: Without dead ends: 23548 [2021-07-13 18:59:56,522 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1360.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:59:56,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23548 states. [2021-07-13 18:59:56,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23548 to 8861. [2021-07-13 18:59:56,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8861 states, 8859 states have (on average 2.68800090303646) internal successors, (23813), 8860 states have internal predecessors, (23813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:56,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8861 states to 8861 states and 23813 transitions. [2021-07-13 18:59:56,742 INFO L78 Accepts]: Start accepts. Automaton has 8861 states and 23813 transitions. Word has length 114 [2021-07-13 18:59:56,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:56,742 INFO L482 AbstractCegarLoop]: Abstraction has 8861 states and 23813 transitions. [2021-07-13 18:59:56,742 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:56,742 INFO L276 IsEmpty]: Start isEmpty. Operand 8861 states and 23813 transitions. [2021-07-13 18:59:56,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:59:56,753 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:56,754 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:56,754 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-07-13 18:59:56,754 INFO L430 AbstractCegarLoop]: === Iteration 116 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:56,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:56,754 INFO L82 PathProgramCache]: Analyzing trace with hash 386903122, now seen corresponding path program 108 times [2021-07-13 18:59:56,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:56,754 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309900789] [2021-07-13 18:59:56,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:56,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:57,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:57,087 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:57,087 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309900789] [2021-07-13 18:59:57,087 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309900789] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:57,087 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:57,087 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:59:57,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905782963] [2021-07-13 18:59:57,088 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:59:57,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:57,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:59:57,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:59:57,088 INFO L87 Difference]: Start difference. First operand 8861 states and 23813 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:57,904 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 18:59:58,058 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 18:59:58,260 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 18:59:58,464 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 18:59:58,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:58,645 INFO L93 Difference]: Finished difference Result 23530 states and 62089 transitions. [2021-07-13 18:59:58,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:59:58,646 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 18:59:58,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:58,682 INFO L225 Difference]: With dead ends: 23530 [2021-07-13 18:59:58,682 INFO L226 Difference]: Without dead ends: 23530 [2021-07-13 18:59:58,682 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1336.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:59:58,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23530 states. [2021-07-13 18:59:58,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23530 to 8829. [2021-07-13 18:59:58,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8829 states, 8827 states have (on average 2.6873229862920582) internal successors, (23721), 8828 states have internal predecessors, (23721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:58,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8829 states to 8829 states and 23721 transitions. [2021-07-13 18:59:58,932 INFO L78 Accepts]: Start accepts. Automaton has 8829 states and 23721 transitions. Word has length 114 [2021-07-13 18:59:58,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:58,932 INFO L482 AbstractCegarLoop]: Abstraction has 8829 states and 23721 transitions. [2021-07-13 18:59:58,932 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:58,932 INFO L276 IsEmpty]: Start isEmpty. Operand 8829 states and 23721 transitions. [2021-07-13 18:59:58,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 18:59:58,943 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:58,943 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:58,943 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-07-13 18:59:58,943 INFO L430 AbstractCegarLoop]: === Iteration 117 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:58,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:58,943 INFO L82 PathProgramCache]: Analyzing trace with hash 8085808, now seen corresponding path program 109 times [2021-07-13 18:59:58,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:58,944 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833746411] [2021-07-13 18:59:58,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:58,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:59,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:59,307 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:59,307 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833746411] [2021-07-13 18:59:59,308 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833746411] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:59,308 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:59,308 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:59:59,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430139877] [2021-07-13 18:59:59,308 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:59:59,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:59,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:59:59,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:59:59,309 INFO L87 Difference]: Start difference. First operand 8829 states and 23721 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:00,087 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-13 19:00:00,239 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:00:00,438 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:00:00,671 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:00:00,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:00,828 INFO L93 Difference]: Finished difference Result 20256 states and 53666 transitions. [2021-07-13 19:00:00,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:00:00,828 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:00:00,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:00,856 INFO L225 Difference]: With dead ends: 20256 [2021-07-13 19:00:00,856 INFO L226 Difference]: Without dead ends: 20256 [2021-07-13 19:00:00,856 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1386.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:00:00,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20256 states. [2021-07-13 19:00:01,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20256 to 8797. [2021-07-13 19:00:01,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8797 states, 8795 states have (on average 2.68664013644116) internal successors, (23629), 8796 states have internal predecessors, (23629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:01,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8797 states to 8797 states and 23629 transitions. [2021-07-13 19:00:01,044 INFO L78 Accepts]: Start accepts. Automaton has 8797 states and 23629 transitions. Word has length 114 [2021-07-13 19:00:01,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:01,044 INFO L482 AbstractCegarLoop]: Abstraction has 8797 states and 23629 transitions. [2021-07-13 19:00:01,044 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:01,044 INFO L276 IsEmpty]: Start isEmpty. Operand 8797 states and 23629 transitions. [2021-07-13 19:00:01,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:00:01,054 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:01,054 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:01,054 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-07-13 19:00:01,054 INFO L430 AbstractCegarLoop]: === Iteration 118 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:01,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:01,054 INFO L82 PathProgramCache]: Analyzing trace with hash -589474162, now seen corresponding path program 110 times [2021-07-13 19:00:01,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:01,055 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249360242] [2021-07-13 19:00:01,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:01,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:01,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:01,402 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:01,402 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249360242] [2021-07-13 19:00:01,402 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249360242] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:01,402 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:01,402 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:00:01,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104472173] [2021-07-13 19:00:01,402 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:00:01,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:01,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:00:01,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:00:01,403 INFO L87 Difference]: Start difference. First operand 8797 states and 23629 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:02,230 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:00:02,414 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:00:02,594 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:00:02,796 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:00:02,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:02,979 INFO L93 Difference]: Finished difference Result 19221 states and 51322 transitions. [2021-07-13 19:00:02,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:00:02,979 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:00:02,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:03,009 INFO L225 Difference]: With dead ends: 19221 [2021-07-13 19:00:03,009 INFO L226 Difference]: Without dead ends: 19221 [2021-07-13 19:00:03,009 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1384.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:00:03,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19221 states. [2021-07-13 19:00:03,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19221 to 8877. [2021-07-13 19:00:03,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8877 states, 8875 states have (on average 2.688338028169014) internal successors, (23859), 8876 states have internal predecessors, (23859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:03,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 23859 transitions. [2021-07-13 19:00:03,273 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 23859 transitions. Word has length 114 [2021-07-13 19:00:03,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:03,273 INFO L482 AbstractCegarLoop]: Abstraction has 8877 states and 23859 transitions. [2021-07-13 19:00:03,273 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:03,273 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 23859 transitions. [2021-07-13 19:00:03,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:00:03,282 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:03,282 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:03,283 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-07-13 19:00:03,283 INFO L430 AbstractCegarLoop]: === Iteration 119 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:03,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:03,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1620114188, now seen corresponding path program 111 times [2021-07-13 19:00:03,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:03,283 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093892366] [2021-07-13 19:00:03,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:03,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:03,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:03,683 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:03,683 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093892366] [2021-07-13 19:00:03,683 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093892366] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:03,683 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:03,683 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:00:03,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930740168] [2021-07-13 19:00:03,683 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:00:03,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:03,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:00:03,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:00:03,684 INFO L87 Difference]: Start difference. First operand 8877 states and 23859 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:04,480 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:00:04,661 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:00:04,857 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:00:05,057 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:00:05,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:05,246 INFO L93 Difference]: Finished difference Result 18799 states and 49808 transitions. [2021-07-13 19:00:05,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:00:05,246 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:00:05,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:05,277 INFO L225 Difference]: With dead ends: 18799 [2021-07-13 19:00:05,277 INFO L226 Difference]: Without dead ends: 18799 [2021-07-13 19:00:05,277 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1418.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:00:05,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18799 states. [2021-07-13 19:00:05,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18799 to 8861. [2021-07-13 19:00:05,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8861 states, 8859 states have (on average 2.68800090303646) internal successors, (23813), 8860 states have internal predecessors, (23813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:05,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8861 states to 8861 states and 23813 transitions. [2021-07-13 19:00:05,482 INFO L78 Accepts]: Start accepts. Automaton has 8861 states and 23813 transitions. Word has length 114 [2021-07-13 19:00:05,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:05,482 INFO L482 AbstractCegarLoop]: Abstraction has 8861 states and 23813 transitions. [2021-07-13 19:00:05,482 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:05,482 INFO L276 IsEmpty]: Start isEmpty. Operand 8861 states and 23813 transitions. [2021-07-13 19:00:05,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:00:05,493 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:05,493 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:05,494 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-07-13 19:00:05,494 INFO L430 AbstractCegarLoop]: === Iteration 120 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:05,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:05,494 INFO L82 PathProgramCache]: Analyzing trace with hash -18999186, now seen corresponding path program 112 times [2021-07-13 19:00:05,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:05,494 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676311684] [2021-07-13 19:00:05,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:05,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:05,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:05,868 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:05,868 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676311684] [2021-07-13 19:00:05,868 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676311684] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:05,868 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:05,868 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:00:05,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538624178] [2021-07-13 19:00:05,868 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:00:05,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:05,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:00:05,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:00:05,869 INFO L87 Difference]: Start difference. First operand 8861 states and 23813 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:06,677 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:00:06,829 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:00:07,027 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:00:07,231 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:00:07,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:07,396 INFO L93 Difference]: Finished difference Result 18781 states and 49862 transitions. [2021-07-13 19:00:07,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:00:07,396 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:00:07,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:07,423 INFO L225 Difference]: With dead ends: 18781 [2021-07-13 19:00:07,424 INFO L226 Difference]: Without dead ends: 18781 [2021-07-13 19:00:07,424 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1397.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:00:07,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18781 states. [2021-07-13 19:00:07,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18781 to 8829. [2021-07-13 19:00:07,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8829 states, 8827 states have (on average 2.6873229862920582) internal successors, (23721), 8828 states have internal predecessors, (23721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:07,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8829 states to 8829 states and 23721 transitions. [2021-07-13 19:00:07,617 INFO L78 Accepts]: Start accepts. Automaton has 8829 states and 23721 transitions. Word has length 114 [2021-07-13 19:00:07,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:07,617 INFO L482 AbstractCegarLoop]: Abstraction has 8829 states and 23721 transitions. [2021-07-13 19:00:07,617 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:07,617 INFO L276 IsEmpty]: Start isEmpty. Operand 8829 states and 23721 transitions. [2021-07-13 19:00:07,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:00:07,627 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:07,627 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:07,627 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-07-13 19:00:07,627 INFO L430 AbstractCegarLoop]: === Iteration 121 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:07,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:07,628 INFO L82 PathProgramCache]: Analyzing trace with hash -397816500, now seen corresponding path program 113 times [2021-07-13 19:00:07,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:07,628 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93936704] [2021-07-13 19:00:07,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:07,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:08,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:08,032 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:08,032 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93936704] [2021-07-13 19:00:08,032 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93936704] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:08,032 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:08,032 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:00:08,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803739039] [2021-07-13 19:00:08,032 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:00:08,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:08,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:00:08,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:00:08,033 INFO L87 Difference]: Start difference. First operand 8829 states and 23721 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:08,823 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-13 19:00:08,972 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:00:09,182 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:00:09,414 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:00:09,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:09,566 INFO L93 Difference]: Finished difference Result 19037 states and 50610 transitions. [2021-07-13 19:00:09,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:00:09,566 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:00:09,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:09,599 INFO L225 Difference]: With dead ends: 19037 [2021-07-13 19:00:09,599 INFO L226 Difference]: Without dead ends: 19037 [2021-07-13 19:00:09,599 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1422.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:00:09,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19037 states. [2021-07-13 19:00:09,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19037 to 8813. [2021-07-13 19:00:09,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8813 states, 8811 states have (on average 2.6869821813642036) internal successors, (23675), 8812 states have internal predecessors, (23675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:09,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8813 states to 8813 states and 23675 transitions. [2021-07-13 19:00:09,786 INFO L78 Accepts]: Start accepts. Automaton has 8813 states and 23675 transitions. Word has length 114 [2021-07-13 19:00:09,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:09,786 INFO L482 AbstractCegarLoop]: Abstraction has 8813 states and 23675 transitions. [2021-07-13 19:00:09,786 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:09,786 INFO L276 IsEmpty]: Start isEmpty. Operand 8813 states and 23675 transitions. [2021-07-13 19:00:09,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:00:09,796 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:09,796 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:09,796 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-07-13 19:00:09,796 INFO L430 AbstractCegarLoop]: === Iteration 122 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:09,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:09,796 INFO L82 PathProgramCache]: Analyzing trace with hash -57572142, now seen corresponding path program 114 times [2021-07-13 19:00:09,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:09,796 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039925062] [2021-07-13 19:00:09,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:09,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:10,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:10,157 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:10,157 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039925062] [2021-07-13 19:00:10,157 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039925062] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:10,157 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:10,157 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:00:10,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315567258] [2021-07-13 19:00:10,157 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:00:10,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:10,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:00:10,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:00:10,158 INFO L87 Difference]: Start difference. First operand 8813 states and 23675 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:10,924 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-13 19:00:11,076 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:00:11,270 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:00:11,475 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:00:11,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:11,638 INFO L93 Difference]: Finished difference Result 15792 states and 42126 transitions. [2021-07-13 19:00:11,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:00:11,638 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:00:11,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:11,663 INFO L225 Difference]: With dead ends: 15792 [2021-07-13 19:00:11,663 INFO L226 Difference]: Without dead ends: 15792 [2021-07-13 19:00:11,663 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1351.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:00:11,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15792 states. [2021-07-13 19:00:11,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15792 to 8757. [2021-07-13 19:00:11,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8757 states, 8755 states have (on average 2.6854368932038835) internal successors, (23511), 8756 states have internal predecessors, (23511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:11,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8757 states to 8757 states and 23511 transitions. [2021-07-13 19:00:11,827 INFO L78 Accepts]: Start accepts. Automaton has 8757 states and 23511 transitions. Word has length 114 [2021-07-13 19:00:11,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:11,827 INFO L482 AbstractCegarLoop]: Abstraction has 8757 states and 23511 transitions. [2021-07-13 19:00:11,827 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:11,827 INFO L276 IsEmpty]: Start isEmpty. Operand 8757 states and 23511 transitions. [2021-07-13 19:00:11,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:00:11,836 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:11,836 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:11,837 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-07-13 19:00:11,837 INFO L430 AbstractCegarLoop]: === Iteration 123 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:11,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:11,837 INFO L82 PathProgramCache]: Analyzing trace with hash -1975320880, now seen corresponding path program 115 times [2021-07-13 19:00:11,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:11,837 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902922549] [2021-07-13 19:00:11,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:11,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:12,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:12,205 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:12,205 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902922549] [2021-07-13 19:00:12,205 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902922549] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:12,205 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:12,205 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:00:12,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133951072] [2021-07-13 19:00:12,205 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:00:12,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:12,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:00:12,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:00:12,206 INFO L87 Difference]: Start difference. First operand 8757 states and 23511 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:12,976 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:00:13,149 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:00:13,320 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:00:13,520 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:00:13,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:13,689 INFO L93 Difference]: Finished difference Result 24099 states and 63907 transitions. [2021-07-13 19:00:13,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:00:13,689 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:00:13,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:13,724 INFO L225 Difference]: With dead ends: 24099 [2021-07-13 19:00:13,725 INFO L226 Difference]: Without dead ends: 24099 [2021-07-13 19:00:13,725 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1338.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:00:13,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24099 states. [2021-07-13 19:00:13,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24099 to 8947. [2021-07-13 19:00:13,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8947 states, 8945 states have (on average 2.6895472330911123) internal successors, (24058), 8946 states have internal predecessors, (24058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:13,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8947 states to 8947 states and 24058 transitions. [2021-07-13 19:00:13,969 INFO L78 Accepts]: Start accepts. Automaton has 8947 states and 24058 transitions. Word has length 114 [2021-07-13 19:00:13,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:13,969 INFO L482 AbstractCegarLoop]: Abstraction has 8947 states and 24058 transitions. [2021-07-13 19:00:13,969 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:13,969 INFO L276 IsEmpty]: Start isEmpty. Operand 8947 states and 24058 transitions. [2021-07-13 19:00:13,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:00:13,981 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:13,981 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:13,981 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-07-13 19:00:13,981 INFO L430 AbstractCegarLoop]: === Iteration 124 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:13,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:13,981 INFO L82 PathProgramCache]: Analyzing trace with hash 234267470, now seen corresponding path program 116 times [2021-07-13 19:00:13,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:13,981 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111453851] [2021-07-13 19:00:13,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:13,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:14,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:14,329 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:14,329 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111453851] [2021-07-13 19:00:14,329 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111453851] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:14,329 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:14,329 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:00:14,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983721602] [2021-07-13 19:00:14,329 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:00:14,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:14,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:00:14,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:00:14,330 INFO L87 Difference]: Start difference. First operand 8947 states and 24058 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:15,011 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-13 19:00:15,158 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:00:15,358 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:00:15,546 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:00:15,744 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:00:15,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:15,935 INFO L93 Difference]: Finished difference Result 23677 states and 62393 transitions. [2021-07-13 19:00:15,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:00:15,935 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:00:15,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:15,973 INFO L225 Difference]: With dead ends: 23677 [2021-07-13 19:00:15,973 INFO L226 Difference]: Without dead ends: 23677 [2021-07-13 19:00:15,973 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1413.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:00:16,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23677 states. [2021-07-13 19:00:16,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23677 to 8931. [2021-07-13 19:00:16,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8931 states, 8929 states have (on average 2.6892149176839513) internal successors, (24012), 8930 states have internal predecessors, (24012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:16,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8931 states to 8931 states and 24012 transitions. [2021-07-13 19:00:16,230 INFO L78 Accepts]: Start accepts. Automaton has 8931 states and 24012 transitions. Word has length 114 [2021-07-13 19:00:16,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:16,230 INFO L482 AbstractCegarLoop]: Abstraction has 8931 states and 24012 transitions. [2021-07-13 19:00:16,231 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:16,231 INFO L276 IsEmpty]: Start isEmpty. Operand 8931 states and 24012 transitions. [2021-07-13 19:00:16,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:00:16,242 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:16,242 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:16,242 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-07-13 19:00:16,242 INFO L430 AbstractCegarLoop]: === Iteration 125 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:16,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:16,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1404845904, now seen corresponding path program 117 times [2021-07-13 19:00:16,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:16,243 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470483404] [2021-07-13 19:00:16,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:16,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:16,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:16,598 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:16,598 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470483404] [2021-07-13 19:00:16,598 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470483404] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:16,598 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:16,598 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:00:16,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833645755] [2021-07-13 19:00:16,598 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:00:16,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:16,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:00:16,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:00:16,599 INFO L87 Difference]: Start difference. First operand 8931 states and 24012 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:17,390 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:00:17,542 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:00:17,760 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:00:17,965 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:00:18,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:18,141 INFO L93 Difference]: Finished difference Result 21155 states and 55886 transitions. [2021-07-13 19:00:18,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:00:18,141 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:00:18,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:18,174 INFO L225 Difference]: With dead ends: 21155 [2021-07-13 19:00:18,174 INFO L226 Difference]: Without dead ends: 21155 [2021-07-13 19:00:18,174 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1369.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:00:18,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21155 states. [2021-07-13 19:00:18,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21155 to 8899. [2021-07-13 19:00:18,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8899 states, 8897 states have (on average 2.688546701135214) internal successors, (23920), 8898 states have internal predecessors, (23920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:18,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8899 states to 8899 states and 23920 transitions. [2021-07-13 19:00:18,393 INFO L78 Accepts]: Start accepts. Automaton has 8899 states and 23920 transitions. Word has length 114 [2021-07-13 19:00:18,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:18,394 INFO L482 AbstractCegarLoop]: Abstraction has 8899 states and 23920 transitions. [2021-07-13 19:00:18,394 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:18,394 INFO L276 IsEmpty]: Start isEmpty. Operand 8899 states and 23920 transitions. [2021-07-13 19:00:18,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:00:18,406 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:18,406 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:18,406 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-07-13 19:00:18,406 INFO L430 AbstractCegarLoop]: === Iteration 126 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:18,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:18,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1106445230, now seen corresponding path program 118 times [2021-07-13 19:00:18,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:18,407 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305239578] [2021-07-13 19:00:18,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:18,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:18,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:18,748 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:18,748 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305239578] [2021-07-13 19:00:18,748 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305239578] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:18,748 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:18,748 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:00:18,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070404396] [2021-07-13 19:00:18,748 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:00:18,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:18,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:00:18,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:00:18,749 INFO L87 Difference]: Start difference. First operand 8899 states and 23920 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:19,570 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:00:19,731 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:00:19,910 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:00:20,110 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:00:20,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:20,317 INFO L93 Difference]: Finished difference Result 24717 states and 64934 transitions. [2021-07-13 19:00:20,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:00:20,318 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:00:20,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:20,360 INFO L225 Difference]: With dead ends: 24717 [2021-07-13 19:00:20,360 INFO L226 Difference]: Without dead ends: 24717 [2021-07-13 19:00:20,360 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1369.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:00:20,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24717 states. [2021-07-13 19:00:20,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24717 to 8931. [2021-07-13 19:00:20,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8931 states, 8929 states have (on average 2.6892149176839513) internal successors, (24012), 8930 states have internal predecessors, (24012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:20,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8931 states to 8931 states and 24012 transitions. [2021-07-13 19:00:20,652 INFO L78 Accepts]: Start accepts. Automaton has 8931 states and 24012 transitions. Word has length 114 [2021-07-13 19:00:20,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:20,652 INFO L482 AbstractCegarLoop]: Abstraction has 8931 states and 24012 transitions. [2021-07-13 19:00:20,652 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:20,652 INFO L276 IsEmpty]: Start isEmpty. Operand 8931 states and 24012 transitions. [2021-07-13 19:00:20,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:00:20,663 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:20,663 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:20,663 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-07-13 19:00:20,663 INFO L430 AbstractCegarLoop]: === Iteration 127 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:20,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:20,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1103143120, now seen corresponding path program 119 times [2021-07-13 19:00:20,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:20,664 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840154874] [2021-07-13 19:00:20,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:20,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:20,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:20,984 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:20,984 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840154874] [2021-07-13 19:00:20,984 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840154874] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:20,984 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:20,984 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:00:20,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945594538] [2021-07-13 19:00:20,985 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:00:20,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:20,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:00:20,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:00:20,985 INFO L87 Difference]: Start difference. First operand 8931 states and 24012 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:21,615 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-13 19:00:21,781 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:00:21,937 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:00:22,128 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:00:22,332 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:00:22,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:22,532 INFO L93 Difference]: Finished difference Result 25530 states and 66738 transitions. [2021-07-13 19:00:22,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:00:22,532 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:00:22,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:22,580 INFO L225 Difference]: With dead ends: 25530 [2021-07-13 19:00:22,580 INFO L226 Difference]: Without dead ends: 25530 [2021-07-13 19:00:22,580 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1374.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:00:22,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25530 states. [2021-07-13 19:00:22,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25530 to 8915. [2021-07-13 19:00:22,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8915 states, 8913 states have (on average 2.688881409177606) internal successors, (23966), 8914 states have internal predecessors, (23966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:22,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8915 states to 8915 states and 23966 transitions. [2021-07-13 19:00:22,844 INFO L78 Accepts]: Start accepts. Automaton has 8915 states and 23966 transitions. Word has length 114 [2021-07-13 19:00:22,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:22,844 INFO L482 AbstractCegarLoop]: Abstraction has 8915 states and 23966 transitions. [2021-07-13 19:00:22,844 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:22,844 INFO L276 IsEmpty]: Start isEmpty. Operand 8915 states and 23966 transitions. [2021-07-13 19:00:22,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:00:22,856 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:22,856 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:22,856 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-07-13 19:00:22,856 INFO L430 AbstractCegarLoop]: === Iteration 128 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:22,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:22,856 INFO L82 PathProgramCache]: Analyzing trace with hash 828918322, now seen corresponding path program 120 times [2021-07-13 19:00:22,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:22,857 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618394273] [2021-07-13 19:00:22,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:22,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:23,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:23,240 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:23,241 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618394273] [2021-07-13 19:00:23,241 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618394273] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:23,241 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:23,241 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:00:23,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334411968] [2021-07-13 19:00:23,241 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:00:23,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:23,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:00:23,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:00:23,242 INFO L87 Difference]: Start difference. First operand 8915 states and 23966 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:24,038 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:00:24,212 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:00:24,426 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:00:24,622 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:00:24,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:24,822 INFO L93 Difference]: Finished difference Result 24856 states and 65151 transitions. [2021-07-13 19:00:24,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:00:24,823 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:00:24,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:24,866 INFO L225 Difference]: With dead ends: 24856 [2021-07-13 19:00:24,867 INFO L226 Difference]: Without dead ends: 24856 [2021-07-13 19:00:24,867 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1375.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:00:24,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24856 states. [2021-07-13 19:00:25,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24856 to 8931. [2021-07-13 19:00:25,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8931 states, 8929 states have (on average 2.6892149176839513) internal successors, (24012), 8930 states have internal predecessors, (24012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:25,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8931 states to 8931 states and 24012 transitions. [2021-07-13 19:00:25,122 INFO L78 Accepts]: Start accepts. Automaton has 8931 states and 24012 transitions. Word has length 114 [2021-07-13 19:00:25,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:25,122 INFO L482 AbstractCegarLoop]: Abstraction has 8931 states and 24012 transitions. [2021-07-13 19:00:25,122 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:25,122 INFO L276 IsEmpty]: Start isEmpty. Operand 8931 states and 24012 transitions. [2021-07-13 19:00:25,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:00:25,133 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:25,133 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:25,133 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-07-13 19:00:25,133 INFO L430 AbstractCegarLoop]: === Iteration 129 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:25,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:25,134 INFO L82 PathProgramCache]: Analyzing trace with hash 580371342, now seen corresponding path program 121 times [2021-07-13 19:00:25,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:25,134 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431267517] [2021-07-13 19:00:25,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:25,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:25,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:25,461 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:25,461 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431267517] [2021-07-13 19:00:25,461 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431267517] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:25,461 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:25,461 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:00:25,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521837768] [2021-07-13 19:00:25,461 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:00:25,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:25,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:00:25,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:00:25,462 INFO L87 Difference]: Start difference. First operand 8931 states and 24012 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:26,260 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:00:26,419 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:00:26,592 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:00:26,787 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:00:26,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:26,934 INFO L93 Difference]: Finished difference Result 21921 states and 57677 transitions. [2021-07-13 19:00:26,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:00:26,934 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:00:26,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:26,966 INFO L225 Difference]: With dead ends: 21921 [2021-07-13 19:00:26,966 INFO L226 Difference]: Without dead ends: 21921 [2021-07-13 19:00:26,966 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1353.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:00:27,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21921 states. [2021-07-13 19:00:27,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21921 to 8867. [2021-07-13 19:00:27,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8867 states, 8865 states have (on average 2.687873660462493) internal successors, (23828), 8866 states have internal predecessors, (23828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:27,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8867 states to 8867 states and 23828 transitions. [2021-07-13 19:00:27,177 INFO L78 Accepts]: Start accepts. Automaton has 8867 states and 23828 transitions. Word has length 114 [2021-07-13 19:00:27,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:27,177 INFO L482 AbstractCegarLoop]: Abstraction has 8867 states and 23828 transitions. [2021-07-13 19:00:27,177 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:27,177 INFO L276 IsEmpty]: Start isEmpty. Operand 8867 states and 23828 transitions. [2021-07-13 19:00:27,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:00:27,187 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:27,187 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:27,188 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-07-13 19:00:27,188 INFO L430 AbstractCegarLoop]: === Iteration 130 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:27,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:27,188 INFO L82 PathProgramCache]: Analyzing trace with hash 1460719792, now seen corresponding path program 122 times [2021-07-13 19:00:27,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:27,188 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452085628] [2021-07-13 19:00:27,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:27,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:27,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:27,496 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:27,497 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452085628] [2021-07-13 19:00:27,497 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452085628] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:27,497 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:27,497 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:00:27,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839345432] [2021-07-13 19:00:27,497 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:00:27,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:27,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:00:27,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:00:27,497 INFO L87 Difference]: Start difference. First operand 8867 states and 23828 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:28,279 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:00:28,436 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:00:28,611 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:00:28,808 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:00:28,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:28,974 INFO L93 Difference]: Finished difference Result 21093 states and 55740 transitions. [2021-07-13 19:00:28,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:00:28,974 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:00:28,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:29,051 INFO L225 Difference]: With dead ends: 21093 [2021-07-13 19:00:29,051 INFO L226 Difference]: Without dead ends: 21093 [2021-07-13 19:00:29,051 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1332.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:00:29,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21093 states. [2021-07-13 19:00:29,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21093 to 8931. [2021-07-13 19:00:29,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8931 states, 8929 states have (on average 2.6892149176839513) internal successors, (24012), 8930 states have internal predecessors, (24012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:29,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8931 states to 8931 states and 24012 transitions. [2021-07-13 19:00:29,237 INFO L78 Accepts]: Start accepts. Automaton has 8931 states and 24012 transitions. Word has length 114 [2021-07-13 19:00:29,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:29,237 INFO L482 AbstractCegarLoop]: Abstraction has 8931 states and 24012 transitions. [2021-07-13 19:00:29,237 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:29,238 INFO L276 IsEmpty]: Start isEmpty. Operand 8931 states and 24012 transitions. [2021-07-13 19:00:29,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:00:29,248 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:29,248 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:29,248 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-07-13 19:00:29,248 INFO L430 AbstractCegarLoop]: === Iteration 131 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:29,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:29,249 INFO L82 PathProgramCache]: Analyzing trace with hash -624659154, now seen corresponding path program 123 times [2021-07-13 19:00:29,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:29,249 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184730281] [2021-07-13 19:00:29,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:29,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:29,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:29,576 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:29,576 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184730281] [2021-07-13 19:00:29,576 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184730281] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:29,576 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:29,576 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:00:29,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357168479] [2021-07-13 19:00:29,576 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:00:29,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:29,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:00:29,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:00:29,577 INFO L87 Difference]: Start difference. First operand 8931 states and 24012 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:30,217 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-13 19:00:30,383 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:00:30,539 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:00:30,727 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:00:30,917 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:00:31,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:31,083 INFO L93 Difference]: Finished difference Result 21906 states and 57544 transitions. [2021-07-13 19:00:31,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:00:31,084 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:00:31,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:31,116 INFO L225 Difference]: With dead ends: 21906 [2021-07-13 19:00:31,116 INFO L226 Difference]: Without dead ends: 21906 [2021-07-13 19:00:31,116 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1375.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:00:31,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21906 states. [2021-07-13 19:00:31,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21906 to 8915. [2021-07-13 19:00:31,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8915 states, 8913 states have (on average 2.688881409177606) internal successors, (23966), 8914 states have internal predecessors, (23966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:31,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8915 states to 8915 states and 23966 transitions. [2021-07-13 19:00:31,332 INFO L78 Accepts]: Start accepts. Automaton has 8915 states and 23966 transitions. Word has length 114 [2021-07-13 19:00:31,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:31,332 INFO L482 AbstractCegarLoop]: Abstraction has 8915 states and 23966 transitions. [2021-07-13 19:00:31,332 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:31,333 INFO L276 IsEmpty]: Start isEmpty. Operand 8915 states and 23966 transitions. [2021-07-13 19:00:31,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:00:31,343 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:31,343 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:31,343 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-07-13 19:00:31,343 INFO L430 AbstractCegarLoop]: === Iteration 132 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:31,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:31,343 INFO L82 PathProgramCache]: Analyzing trace with hash -898883952, now seen corresponding path program 124 times [2021-07-13 19:00:31,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:31,343 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159572944] [2021-07-13 19:00:31,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:31,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:31,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:31,790 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:31,790 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159572944] [2021-07-13 19:00:31,790 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159572944] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:31,790 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:31,790 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:00:31,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806376223] [2021-07-13 19:00:31,790 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:00:31,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:31,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:00:31,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:00:31,791 INFO L87 Difference]: Start difference. First operand 8915 states and 23966 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:32,562 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:00:32,720 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:00:32,905 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:00:33,098 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:00:33,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:33,281 INFO L93 Difference]: Finished difference Result 25019 states and 65494 transitions. [2021-07-13 19:00:33,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:00:33,282 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:00:33,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:33,327 INFO L225 Difference]: With dead ends: 25019 [2021-07-13 19:00:33,327 INFO L226 Difference]: Without dead ends: 25019 [2021-07-13 19:00:33,328 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1415.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:00:33,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25019 states. [2021-07-13 19:00:33,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25019 to 8931. [2021-07-13 19:00:33,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8931 states, 8929 states have (on average 2.6892149176839513) internal successors, (24012), 8930 states have internal predecessors, (24012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:33,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8931 states to 8931 states and 24012 transitions. [2021-07-13 19:00:33,582 INFO L78 Accepts]: Start accepts. Automaton has 8931 states and 24012 transitions. Word has length 114 [2021-07-13 19:00:33,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:33,582 INFO L482 AbstractCegarLoop]: Abstraction has 8931 states and 24012 transitions. [2021-07-13 19:00:33,582 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:33,582 INFO L276 IsEmpty]: Start isEmpty. Operand 8931 states and 24012 transitions. [2021-07-13 19:00:33,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:00:33,593 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:33,594 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:33,594 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-07-13 19:00:33,594 INFO L430 AbstractCegarLoop]: === Iteration 133 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:33,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:33,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1147430932, now seen corresponding path program 125 times [2021-07-13 19:00:33,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:33,594 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336158234] [2021-07-13 19:00:33,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:33,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:33,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:33,900 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:33,900 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336158234] [2021-07-13 19:00:33,900 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336158234] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:33,900 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:33,900 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:00:33,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757322288] [2021-07-13 19:00:33,900 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:00:33,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:33,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:00:33,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:00:33,901 INFO L87 Difference]: Start difference. First operand 8931 states and 24012 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:34,702 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:00:34,861 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:00:35,036 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:00:35,233 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:00:35,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:35,386 INFO L93 Difference]: Finished difference Result 22084 states and 58020 transitions. [2021-07-13 19:00:35,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:00:35,387 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:00:35,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:35,419 INFO L225 Difference]: With dead ends: 22084 [2021-07-13 19:00:35,419 INFO L226 Difference]: Without dead ends: 22084 [2021-07-13 19:00:35,420 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1327.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:00:35,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22084 states. [2021-07-13 19:00:35,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22084 to 8899. [2021-07-13 19:00:35,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8899 states, 8897 states have (on average 2.688546701135214) internal successors, (23920), 8898 states have internal predecessors, (23920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:35,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8899 states to 8899 states and 23920 transitions. [2021-07-13 19:00:35,649 INFO L78 Accepts]: Start accepts. Automaton has 8899 states and 23920 transitions. Word has length 114 [2021-07-13 19:00:35,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:35,649 INFO L482 AbstractCegarLoop]: Abstraction has 8899 states and 23920 transitions. [2021-07-13 19:00:35,649 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:35,649 INFO L276 IsEmpty]: Start isEmpty. Operand 8899 states and 23920 transitions. [2021-07-13 19:00:35,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:00:35,661 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:35,661 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:35,661 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2021-07-13 19:00:35,661 INFO L430 AbstractCegarLoop]: === Iteration 134 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:35,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:35,661 INFO L82 PathProgramCache]: Analyzing trace with hash 331031854, now seen corresponding path program 126 times [2021-07-13 19:00:35,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:35,661 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778831952] [2021-07-13 19:00:35,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:35,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:35,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:35,996 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:35,996 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778831952] [2021-07-13 19:00:35,996 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778831952] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:35,997 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:35,997 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:00:35,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319634631] [2021-07-13 19:00:35,997 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:00:35,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:35,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:00:35,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:00:35,997 INFO L87 Difference]: Start difference. First operand 8899 states and 23920 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:36,768 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:00:36,937 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:00:37,122 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:00:37,318 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:00:37,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:37,504 INFO L93 Difference]: Finished difference Result 21216 states and 55911 transitions. [2021-07-13 19:00:37,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:00:37,505 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:00:37,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:37,537 INFO L225 Difference]: With dead ends: 21216 [2021-07-13 19:00:37,537 INFO L226 Difference]: Without dead ends: 21216 [2021-07-13 19:00:37,537 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1358.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:00:37,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21216 states. [2021-07-13 19:00:37,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21216 to 8947. [2021-07-13 19:00:37,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8947 states, 8945 states have (on average 2.6895472330911123) internal successors, (24058), 8946 states have internal predecessors, (24058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:37,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8947 states to 8947 states and 24058 transitions. [2021-07-13 19:00:37,754 INFO L78 Accepts]: Start accepts. Automaton has 8947 states and 24058 transitions. Word has length 114 [2021-07-13 19:00:37,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:37,754 INFO L482 AbstractCegarLoop]: Abstraction has 8947 states and 24058 transitions. [2021-07-13 19:00:37,754 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:37,754 INFO L276 IsEmpty]: Start isEmpty. Operand 8947 states and 24058 transitions. [2021-07-13 19:00:37,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:00:37,765 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:37,765 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:37,765 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-07-13 19:00:37,765 INFO L430 AbstractCegarLoop]: === Iteration 135 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:37,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:37,765 INFO L82 PathProgramCache]: Analyzing trace with hash 82484874, now seen corresponding path program 127 times [2021-07-13 19:00:37,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:37,765 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331924848] [2021-07-13 19:00:37,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:37,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:38,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:38,082 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:38,082 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331924848] [2021-07-13 19:00:38,082 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331924848] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:38,082 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:38,082 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:00:38,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155122785] [2021-07-13 19:00:38,083 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:00:38,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:38,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:00:38,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:00:38,083 INFO L87 Difference]: Start difference. First operand 8947 states and 24058 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:38,864 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:00:39,038 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:00:39,216 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:00:39,417 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:00:39,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:39,584 INFO L93 Difference]: Finished difference Result 21056 states and 55509 transitions. [2021-07-13 19:00:39,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:00:39,585 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:00:39,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:39,616 INFO L225 Difference]: With dead ends: 21056 [2021-07-13 19:00:39,616 INFO L226 Difference]: Without dead ends: 21056 [2021-07-13 19:00:39,616 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1339.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:00:39,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21056 states. [2021-07-13 19:00:39,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21056 to 8931. [2021-07-13 19:00:39,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8931 states, 8929 states have (on average 2.6892149176839513) internal successors, (24012), 8930 states have internal predecessors, (24012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:39,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8931 states to 8931 states and 24012 transitions. [2021-07-13 19:00:39,827 INFO L78 Accepts]: Start accepts. Automaton has 8931 states and 24012 transitions. Word has length 114 [2021-07-13 19:00:39,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:39,827 INFO L482 AbstractCegarLoop]: Abstraction has 8931 states and 24012 transitions. [2021-07-13 19:00:39,827 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:39,827 INFO L276 IsEmpty]: Start isEmpty. Operand 8931 states and 24012 transitions. [2021-07-13 19:00:39,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:00:39,838 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:39,838 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:39,838 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-07-13 19:00:39,838 INFO L430 AbstractCegarLoop]: === Iteration 136 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:39,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:39,838 INFO L82 PathProgramCache]: Analyzing trace with hash -1074332430, now seen corresponding path program 128 times [2021-07-13 19:00:39,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:39,838 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535655260] [2021-07-13 19:00:39,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:39,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:40,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:40,211 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:40,211 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535655260] [2021-07-13 19:00:40,211 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535655260] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:40,211 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:40,211 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:00:40,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456460243] [2021-07-13 19:00:40,212 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:00:40,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:40,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:00:40,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:00:40,212 INFO L87 Difference]: Start difference. First operand 8931 states and 24012 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:40,978 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:00:41,126 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:00:41,312 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:00:41,514 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:00:41,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:41,673 INFO L93 Difference]: Finished difference Result 18489 states and 48963 transitions. [2021-07-13 19:00:41,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:00:41,674 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:00:41,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:41,701 INFO L225 Difference]: With dead ends: 18489 [2021-07-13 19:00:41,701 INFO L226 Difference]: Without dead ends: 18489 [2021-07-13 19:00:41,701 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1329.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:00:41,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18489 states. [2021-07-13 19:00:41,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18489 to 8803. [2021-07-13 19:00:41,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8803 states, 8801 states have (on average 2.6865128962617884) internal successors, (23644), 8802 states have internal predecessors, (23644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:41,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8803 states to 8803 states and 23644 transitions. [2021-07-13 19:00:41,898 INFO L78 Accepts]: Start accepts. Automaton has 8803 states and 23644 transitions. Word has length 114 [2021-07-13 19:00:41,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:41,898 INFO L482 AbstractCegarLoop]: Abstraction has 8803 states and 23644 transitions. [2021-07-13 19:00:41,898 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:41,898 INFO L276 IsEmpty]: Start isEmpty. Operand 8803 states and 23644 transitions. [2021-07-13 19:00:41,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:00:41,909 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:41,909 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:41,909 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-07-13 19:00:41,909 INFO L430 AbstractCegarLoop]: === Iteration 137 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:41,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:41,909 INFO L82 PathProgramCache]: Analyzing trace with hash 1481625776, now seen corresponding path program 129 times [2021-07-13 19:00:41,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:41,909 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295009351] [2021-07-13 19:00:41,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:41,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:42,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:42,260 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:42,260 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295009351] [2021-07-13 19:00:42,260 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295009351] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:42,260 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:42,261 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:00:42,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814789170] [2021-07-13 19:00:42,261 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:00:42,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:42,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:00:42,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:00:42,261 INFO L87 Difference]: Start difference. First operand 8803 states and 23644 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:43,061 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:00:43,235 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:00:43,408 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:00:43,607 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:00:43,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:43,790 INFO L93 Difference]: Finished difference Result 24421 states and 64745 transitions. [2021-07-13 19:00:43,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:00:43,790 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:00:43,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:43,831 INFO L225 Difference]: With dead ends: 24421 [2021-07-13 19:00:43,831 INFO L226 Difference]: Without dead ends: 24421 [2021-07-13 19:00:43,832 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1376.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:00:43,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24421 states. [2021-07-13 19:00:44,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24421 to 8899. [2021-07-13 19:00:44,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8899 states, 8897 states have (on average 2.688546701135214) internal successors, (23920), 8898 states have internal predecessors, (23920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:44,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8899 states to 8899 states and 23920 transitions. [2021-07-13 19:00:44,074 INFO L78 Accepts]: Start accepts. Automaton has 8899 states and 23920 transitions. Word has length 114 [2021-07-13 19:00:44,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:44,074 INFO L482 AbstractCegarLoop]: Abstraction has 8899 states and 23920 transitions. [2021-07-13 19:00:44,074 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:44,074 INFO L276 IsEmpty]: Start isEmpty. Operand 8899 states and 23920 transitions. [2021-07-13 19:00:44,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:00:44,084 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:44,084 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:44,085 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-07-13 19:00:44,085 INFO L430 AbstractCegarLoop]: === Iteration 138 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:44,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:44,085 INFO L82 PathProgramCache]: Analyzing trace with hash -603753170, now seen corresponding path program 130 times [2021-07-13 19:00:44,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:44,085 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119340838] [2021-07-13 19:00:44,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:44,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:44,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:44,411 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:44,411 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119340838] [2021-07-13 19:00:44,411 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119340838] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:44,411 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:44,411 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:00:44,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706244303] [2021-07-13 19:00:44,412 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:00:44,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:44,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:00:44,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:00:44,412 INFO L87 Difference]: Start difference. First operand 8899 states and 23920 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:45,176 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:00:45,351 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:00:45,538 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:00:45,765 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:00:45,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:45,948 INFO L93 Difference]: Finished difference Result 23999 states and 63231 transitions. [2021-07-13 19:00:45,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:00:45,949 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:00:45,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:45,986 INFO L225 Difference]: With dead ends: 23999 [2021-07-13 19:00:45,986 INFO L226 Difference]: Without dead ends: 23999 [2021-07-13 19:00:45,986 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1383.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:00:46,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23999 states. [2021-07-13 19:00:46,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23999 to 8883. [2021-07-13 19:00:46,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8883 states, 8881 states have (on average 2.688210787073528) internal successors, (23874), 8882 states have internal predecessors, (23874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:46,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8883 states to 8883 states and 23874 transitions. [2021-07-13 19:00:46,221 INFO L78 Accepts]: Start accepts. Automaton has 8883 states and 23874 transitions. Word has length 114 [2021-07-13 19:00:46,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:46,221 INFO L482 AbstractCegarLoop]: Abstraction has 8883 states and 23874 transitions. [2021-07-13 19:00:46,221 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:46,221 INFO L276 IsEmpty]: Start isEmpty. Operand 8883 states and 23874 transitions. [2021-07-13 19:00:46,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:00:46,231 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:46,231 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:46,231 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-07-13 19:00:46,231 INFO L430 AbstractCegarLoop]: === Iteration 139 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:46,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:46,232 INFO L82 PathProgramCache]: Analyzing trace with hash 2052100752, now seen corresponding path program 131 times [2021-07-13 19:00:46,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:46,232 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450680346] [2021-07-13 19:00:46,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:46,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:46,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:46,580 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:46,580 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450680346] [2021-07-13 19:00:46,580 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450680346] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:46,580 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:46,580 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:00:46,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941073534] [2021-07-13 19:00:46,580 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:00:46,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:46,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:00:46,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:00:46,581 INFO L87 Difference]: Start difference. First operand 8883 states and 23874 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:47,353 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:00:47,504 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:00:47,694 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:00:47,895 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:00:48,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:48,066 INFO L93 Difference]: Finished difference Result 21477 states and 56724 transitions. [2021-07-13 19:00:48,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:00:48,066 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:00:48,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:48,097 INFO L225 Difference]: With dead ends: 21477 [2021-07-13 19:00:48,097 INFO L226 Difference]: Without dead ends: 21477 [2021-07-13 19:00:48,097 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1356.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:00:48,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21477 states. [2021-07-13 19:00:48,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21477 to 8851. [2021-07-13 19:00:48,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8851 states, 8849 states have (on average 2.6875353147248275) internal successors, (23782), 8850 states have internal predecessors, (23782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:48,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8851 states to 8851 states and 23782 transitions. [2021-07-13 19:00:48,375 INFO L78 Accepts]: Start accepts. Automaton has 8851 states and 23782 transitions. Word has length 114 [2021-07-13 19:00:48,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:48,375 INFO L482 AbstractCegarLoop]: Abstraction has 8851 states and 23782 transitions. [2021-07-13 19:00:48,375 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:48,375 INFO L276 IsEmpty]: Start isEmpty. Operand 8851 states and 23782 transitions. [2021-07-13 19:00:48,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:00:48,387 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:48,387 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:48,387 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-07-13 19:00:48,387 INFO L430 AbstractCegarLoop]: === Iteration 140 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:48,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:48,388 INFO L82 PathProgramCache]: Analyzing trace with hash -1944465870, now seen corresponding path program 132 times [2021-07-13 19:00:48,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:48,388 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154490827] [2021-07-13 19:00:48,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:48,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:48,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:48,710 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:48,710 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154490827] [2021-07-13 19:00:48,710 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154490827] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:48,710 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:48,710 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:00:48,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310034093] [2021-07-13 19:00:48,711 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:00:48,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:48,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:00:48,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:00:48,711 INFO L87 Difference]: Start difference. First operand 8851 states and 23782 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:49,498 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:00:49,656 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:00:49,830 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:00:50,026 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:00:50,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:50,208 INFO L93 Difference]: Finished difference Result 21287 states and 56210 transitions. [2021-07-13 19:00:50,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:00:50,208 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:00:50,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:50,242 INFO L225 Difference]: With dead ends: 21287 [2021-07-13 19:00:50,242 INFO L226 Difference]: Without dead ends: 21287 [2021-07-13 19:00:50,242 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1343.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:00:50,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21287 states. [2021-07-13 19:00:50,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21287 to 8883. [2021-07-13 19:00:50,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8883 states, 8881 states have (on average 2.688210787073528) internal successors, (23874), 8882 states have internal predecessors, (23874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:50,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8883 states to 8883 states and 23874 transitions. [2021-07-13 19:00:50,468 INFO L78 Accepts]: Start accepts. Automaton has 8883 states and 23874 transitions. Word has length 114 [2021-07-13 19:00:50,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:50,468 INFO L482 AbstractCegarLoop]: Abstraction has 8883 states and 23874 transitions. [2021-07-13 19:00:50,468 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:50,468 INFO L276 IsEmpty]: Start isEmpty. Operand 8883 states and 23874 transitions. [2021-07-13 19:00:50,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:00:50,480 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:50,480 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:50,480 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-07-13 19:00:50,480 INFO L430 AbstractCegarLoop]: === Iteration 141 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:50,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:50,480 INFO L82 PathProgramCache]: Analyzing trace with hash 265122480, now seen corresponding path program 133 times [2021-07-13 19:00:50,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:50,480 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608225108] [2021-07-13 19:00:50,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:50,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:50,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:50,802 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:50,802 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608225108] [2021-07-13 19:00:50,802 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608225108] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:50,802 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:50,802 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:00:50,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474312982] [2021-07-13 19:00:50,802 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:00:50,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:50,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:00:50,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:00:50,803 INFO L87 Difference]: Start difference. First operand 8883 states and 23874 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:51,646 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:00:51,806 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:00:51,996 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:00:52,191 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:00:52,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:52,387 INFO L93 Difference]: Finished difference Result 22100 states and 58014 transitions. [2021-07-13 19:00:52,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:00:52,387 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:00:52,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:52,421 INFO L225 Difference]: With dead ends: 22100 [2021-07-13 19:00:52,421 INFO L226 Difference]: Without dead ends: 22100 [2021-07-13 19:00:52,421 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1394.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:00:52,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22100 states. [2021-07-13 19:00:52,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22100 to 8867. [2021-07-13 19:00:52,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8867 states, 8865 states have (on average 2.687873660462493) internal successors, (23828), 8866 states have internal predecessors, (23828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:52,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8867 states to 8867 states and 23828 transitions. [2021-07-13 19:00:52,643 INFO L78 Accepts]: Start accepts. Automaton has 8867 states and 23828 transitions. Word has length 114 [2021-07-13 19:00:52,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:52,643 INFO L482 AbstractCegarLoop]: Abstraction has 8867 states and 23828 transitions. [2021-07-13 19:00:52,643 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:52,643 INFO L276 IsEmpty]: Start isEmpty. Operand 8867 states and 23828 transitions. [2021-07-13 19:00:52,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:00:52,653 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:52,653 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:52,654 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-07-13 19:00:52,654 INFO L430 AbstractCegarLoop]: === Iteration 142 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:52,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:52,654 INFO L82 PathProgramCache]: Analyzing trace with hash -9102318, now seen corresponding path program 134 times [2021-07-13 19:00:52,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:52,654 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415094773] [2021-07-13 19:00:52,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:52,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:52,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:52,969 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:52,970 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415094773] [2021-07-13 19:00:52,970 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415094773] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:52,970 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:52,970 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:00:52,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698356412] [2021-07-13 19:00:52,970 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:00:52,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:52,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:00:52,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:00:52,970 INFO L87 Difference]: Start difference. First operand 8867 states and 23828 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:53,609 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-13 19:00:53,770 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:00:53,933 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:00:54,154 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:00:54,350 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:00:54,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:54,535 INFO L93 Difference]: Finished difference Result 21426 states and 56427 transitions. [2021-07-13 19:00:54,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:00:54,536 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:00:54,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:54,567 INFO L225 Difference]: With dead ends: 21426 [2021-07-13 19:00:54,567 INFO L226 Difference]: Without dead ends: 21426 [2021-07-13 19:00:54,567 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1376.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:00:54,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21426 states. [2021-07-13 19:00:54,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21426 to 8883. [2021-07-13 19:00:54,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8883 states, 8881 states have (on average 2.688210787073528) internal successors, (23874), 8882 states have internal predecessors, (23874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:54,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8883 states to 8883 states and 23874 transitions. [2021-07-13 19:00:54,777 INFO L78 Accepts]: Start accepts. Automaton has 8883 states and 23874 transitions. Word has length 114 [2021-07-13 19:00:54,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:54,777 INFO L482 AbstractCegarLoop]: Abstraction has 8883 states and 23874 transitions. [2021-07-13 19:00:54,778 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:54,778 INFO L276 IsEmpty]: Start isEmpty. Operand 8883 states and 23874 transitions. [2021-07-13 19:00:54,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:00:54,788 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:54,788 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:54,788 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-07-13 19:00:54,789 INFO L430 AbstractCegarLoop]: === Iteration 143 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:54,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:54,789 INFO L82 PathProgramCache]: Analyzing trace with hash -257649298, now seen corresponding path program 135 times [2021-07-13 19:00:54,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:54,789 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866069338] [2021-07-13 19:00:54,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:54,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:55,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:55,104 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:55,104 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866069338] [2021-07-13 19:00:55,105 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866069338] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:55,105 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:55,105 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:00:55,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196699085] [2021-07-13 19:00:55,105 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:00:55,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:55,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:00:55,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:00:55,105 INFO L87 Difference]: Start difference. First operand 8883 states and 23874 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:55,904 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:00:56,067 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:00:56,242 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:00:56,439 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:00:56,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:56,613 INFO L93 Difference]: Finished difference Result 18773 states and 49667 transitions. [2021-07-13 19:00:56,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:00:56,613 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:00:56,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:56,642 INFO L225 Difference]: With dead ends: 18773 [2021-07-13 19:00:56,642 INFO L226 Difference]: Without dead ends: 18773 [2021-07-13 19:00:56,643 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1335.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:00:56,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18773 states. [2021-07-13 19:00:56,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18773 to 8819. [2021-07-13 19:00:56,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8819 states, 8817 states have (on average 2.6868549393217647) internal successors, (23690), 8818 states have internal predecessors, (23690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:56,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8819 states to 8819 states and 23690 transitions. [2021-07-13 19:00:56,867 INFO L78 Accepts]: Start accepts. Automaton has 8819 states and 23690 transitions. Word has length 114 [2021-07-13 19:00:56,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:56,868 INFO L482 AbstractCegarLoop]: Abstraction has 8819 states and 23690 transitions. [2021-07-13 19:00:56,868 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:56,868 INFO L276 IsEmpty]: Start isEmpty. Operand 8819 states and 23690 transitions. [2021-07-13 19:00:56,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:00:56,878 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:56,878 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:56,878 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-07-13 19:00:56,878 INFO L430 AbstractCegarLoop]: === Iteration 144 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:56,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:56,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1386947538, now seen corresponding path program 136 times [2021-07-13 19:00:56,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:56,878 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863616979] [2021-07-13 19:00:56,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:56,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:57,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:57,212 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:57,212 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863616979] [2021-07-13 19:00:57,212 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863616979] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:57,212 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:57,212 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:00:57,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024777425] [2021-07-13 19:00:57,212 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:00:57,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:57,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:00:57,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:00:57,213 INFO L87 Difference]: Start difference. First operand 8819 states and 23690 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:57,981 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:00:58,156 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:00:58,330 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:00:58,531 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:00:58,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:58,692 INFO L93 Difference]: Finished difference Result 18989 states and 50467 transitions. [2021-07-13 19:00:58,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:00:58,692 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:00:58,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:58,723 INFO L225 Difference]: With dead ends: 18989 [2021-07-13 19:00:58,724 INFO L226 Difference]: Without dead ends: 18989 [2021-07-13 19:00:58,724 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1354.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:00:58,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18989 states. [2021-07-13 19:00:58,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18989 to 8883. [2021-07-13 19:00:58,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8883 states, 8881 states have (on average 2.688210787073528) internal successors, (23874), 8882 states have internal predecessors, (23874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:58,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8883 states to 8883 states and 23874 transitions. [2021-07-13 19:00:58,927 INFO L78 Accepts]: Start accepts. Automaton has 8883 states and 23874 transitions. Word has length 114 [2021-07-13 19:00:58,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:58,927 INFO L482 AbstractCegarLoop]: Abstraction has 8883 states and 23874 transitions. [2021-07-13 19:00:58,927 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:58,927 INFO L276 IsEmpty]: Start isEmpty. Operand 8883 states and 23874 transitions. [2021-07-13 19:00:58,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:00:58,937 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:58,937 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:58,937 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2021-07-13 19:00:58,938 INFO L430 AbstractCegarLoop]: === Iteration 145 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:58,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:58,938 INFO L82 PathProgramCache]: Analyzing trace with hash -698431408, now seen corresponding path program 137 times [2021-07-13 19:00:58,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:58,938 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955311661] [2021-07-13 19:00:58,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:58,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:59,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:59,388 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:59,388 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955311661] [2021-07-13 19:00:59,388 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955311661] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:59,388 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:59,389 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:00:59,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129697629] [2021-07-13 19:00:59,389 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:00:59,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:59,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:00:59,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:00:59,389 INFO L87 Difference]: Start difference. First operand 8883 states and 23874 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:00,202 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:01:00,381 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:01:00,572 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:01:00,768 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:01:00,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:00,940 INFO L93 Difference]: Finished difference Result 18567 states and 48953 transitions. [2021-07-13 19:01:00,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:01:00,940 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:01:00,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:00,970 INFO L225 Difference]: With dead ends: 18567 [2021-07-13 19:01:00,970 INFO L226 Difference]: Without dead ends: 18567 [2021-07-13 19:01:00,971 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1476.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:01:01,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18567 states. [2021-07-13 19:01:01,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18567 to 8867. [2021-07-13 19:01:01,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8867 states, 8865 states have (on average 2.687873660462493) internal successors, (23828), 8866 states have internal predecessors, (23828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:01,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8867 states to 8867 states and 23828 transitions. [2021-07-13 19:01:01,171 INFO L78 Accepts]: Start accepts. Automaton has 8867 states and 23828 transitions. Word has length 114 [2021-07-13 19:01:01,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:01,171 INFO L482 AbstractCegarLoop]: Abstraction has 8867 states and 23828 transitions. [2021-07-13 19:01:01,171 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:01,171 INFO L276 IsEmpty]: Start isEmpty. Operand 8867 states and 23828 transitions. [2021-07-13 19:01:01,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:01:01,181 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:01,181 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:01,182 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-07-13 19:01:01,182 INFO L430 AbstractCegarLoop]: === Iteration 146 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:01,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:01,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1957422514, now seen corresponding path program 138 times [2021-07-13 19:01:01,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:01,183 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557165334] [2021-07-13 19:01:01,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:01,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:01,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:01,527 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:01,527 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557165334] [2021-07-13 19:01:01,527 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557165334] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:01,527 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:01,527 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:01:01,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695493116] [2021-07-13 19:01:01,527 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:01:01,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:01,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:01:01,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:01:01,528 INFO L87 Difference]: Start difference. First operand 8867 states and 23828 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:02,295 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:01:02,443 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:01:02,635 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:01:02,863 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:01:03,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:03,014 INFO L93 Difference]: Finished difference Result 18549 states and 49007 transitions. [2021-07-13 19:01:03,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:01:03,014 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:01:03,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:03,043 INFO L225 Difference]: With dead ends: 18549 [2021-07-13 19:01:03,043 INFO L226 Difference]: Without dead ends: 18549 [2021-07-13 19:01:03,043 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1335.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:01:03,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18549 states. [2021-07-13 19:01:03,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18549 to 8835. [2021-07-13 19:01:03,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8835 states, 8833 states have (on average 2.687195743235594) internal successors, (23736), 8834 states have internal predecessors, (23736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:03,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8835 states to 8835 states and 23736 transitions. [2021-07-13 19:01:03,235 INFO L78 Accepts]: Start accepts. Automaton has 8835 states and 23736 transitions. Word has length 114 [2021-07-13 19:01:03,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:03,235 INFO L482 AbstractCegarLoop]: Abstraction has 8835 states and 23736 transitions. [2021-07-13 19:01:03,235 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:03,236 INFO L276 IsEmpty]: Start isEmpty. Operand 8835 states and 23736 transitions. [2021-07-13 19:01:03,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:01:03,247 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:03,247 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:03,247 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-07-13 19:01:03,247 INFO L430 AbstractCegarLoop]: === Iteration 147 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:03,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:03,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1578605200, now seen corresponding path program 139 times [2021-07-13 19:01:03,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:03,247 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121160886] [2021-07-13 19:01:03,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:03,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:03,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:03,646 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:03,646 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121160886] [2021-07-13 19:01:03,646 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121160886] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:03,646 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:03,646 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:01:03,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872733155] [2021-07-13 19:01:03,646 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:01:03,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:03,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:01:03,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:01:03,647 INFO L87 Difference]: Start difference. First operand 8835 states and 23736 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:04,412 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-13 19:01:04,559 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:01:04,756 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:01:04,968 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:01:05,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:05,125 INFO L93 Difference]: Finished difference Result 15623 states and 41436 transitions. [2021-07-13 19:01:05,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:01:05,126 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:01:05,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:05,149 INFO L225 Difference]: With dead ends: 15623 [2021-07-13 19:01:05,149 INFO L226 Difference]: Without dead ends: 15623 [2021-07-13 19:01:05,150 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1392.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:01:05,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15623 states. [2021-07-13 19:01:05,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15623 to 8771. [2021-07-13 19:01:05,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8771 states, 8769 states have (on average 2.685825065571901) internal successors, (23552), 8770 states have internal predecessors, (23552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:05,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8771 states to 8771 states and 23552 transitions. [2021-07-13 19:01:05,318 INFO L78 Accepts]: Start accepts. Automaton has 8771 states and 23552 transitions. Word has length 114 [2021-07-13 19:01:05,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:05,319 INFO L482 AbstractCegarLoop]: Abstraction has 8771 states and 23552 transitions. [2021-07-13 19:01:05,319 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:05,319 INFO L276 IsEmpty]: Start isEmpty. Operand 8771 states and 23552 transitions. [2021-07-13 19:01:05,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:01:05,329 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:05,330 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:05,330 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-07-13 19:01:05,330 INFO L430 AbstractCegarLoop]: === Iteration 148 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:05,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:05,330 INFO L82 PathProgramCache]: Analyzing trace with hash -678261586, now seen corresponding path program 140 times [2021-07-13 19:01:05,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:05,330 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363685668] [2021-07-13 19:01:05,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:05,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:05,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:05,727 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:05,727 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363685668] [2021-07-13 19:01:05,727 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363685668] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:05,727 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:05,727 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:01:05,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868388393] [2021-07-13 19:01:05,728 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:01:05,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:05,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:01:05,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:01:05,728 INFO L87 Difference]: Start difference. First operand 8771 states and 23552 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:06,495 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:01:06,663 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:01:06,836 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:01:07,034 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:01:07,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:07,184 INFO L93 Difference]: Finished difference Result 17512 states and 46422 transitions. [2021-07-13 19:01:07,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:01:07,184 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:01:07,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:07,209 INFO L225 Difference]: With dead ends: 17512 [2021-07-13 19:01:07,210 INFO L226 Difference]: Without dead ends: 17512 [2021-07-13 19:01:07,210 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1352.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:01:07,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17512 states. [2021-07-13 19:01:07,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17512 to 8943. [2021-07-13 19:01:07,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8943 states, 8941 states have (on average 2.689632032211162) internal successors, (24048), 8942 states have internal predecessors, (24048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:07,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8943 states to 8943 states and 24048 transitions. [2021-07-13 19:01:07,397 INFO L78 Accepts]: Start accepts. Automaton has 8943 states and 24048 transitions. Word has length 114 [2021-07-13 19:01:07,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:07,397 INFO L482 AbstractCegarLoop]: Abstraction has 8943 states and 24048 transitions. [2021-07-13 19:01:07,397 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:07,397 INFO L276 IsEmpty]: Start isEmpty. Operand 8943 states and 24048 transitions. [2021-07-13 19:01:07,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:01:07,407 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:07,408 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:07,408 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-07-13 19:01:07,408 INFO L430 AbstractCegarLoop]: === Iteration 149 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:07,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:07,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1531326764, now seen corresponding path program 141 times [2021-07-13 19:01:07,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:07,408 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10525794] [2021-07-13 19:01:07,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:07,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:07,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:07,735 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:07,735 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10525794] [2021-07-13 19:01:07,735 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10525794] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:07,735 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:07,735 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:01:07,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100039069] [2021-07-13 19:01:07,735 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:01:07,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:07,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:01:07,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:01:07,735 INFO L87 Difference]: Start difference. First operand 8943 states and 24048 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:08,558 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:01:08,732 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:01:08,921 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:01:09,119 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:01:09,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:09,289 INFO L93 Difference]: Finished difference Result 17090 states and 44908 transitions. [2021-07-13 19:01:09,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:01:09,289 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:01:09,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:09,315 INFO L225 Difference]: With dead ends: 17090 [2021-07-13 19:01:09,315 INFO L226 Difference]: Without dead ends: 17090 [2021-07-13 19:01:09,315 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1387.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:01:09,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17090 states. [2021-07-13 19:01:09,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17090 to 8927. [2021-07-13 19:01:09,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8927 states, 8925 states have (on average 2.689299719887955) internal successors, (24002), 8926 states have internal predecessors, (24002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:09,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8927 states to 8927 states and 24002 transitions. [2021-07-13 19:01:09,510 INFO L78 Accepts]: Start accepts. Automaton has 8927 states and 24002 transitions. Word has length 114 [2021-07-13 19:01:09,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:09,510 INFO L482 AbstractCegarLoop]: Abstraction has 8927 states and 24002 transitions. [2021-07-13 19:01:09,510 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:09,510 INFO L276 IsEmpty]: Start isEmpty. Operand 8927 states and 24002 transitions. [2021-07-13 19:01:09,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:01:09,520 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:09,521 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:09,521 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-07-13 19:01:09,521 INFO L430 AbstractCegarLoop]: === Iteration 150 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:09,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:09,521 INFO L82 PathProgramCache]: Analyzing trace with hash -107786610, now seen corresponding path program 142 times [2021-07-13 19:01:09,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:09,521 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045343612] [2021-07-13 19:01:09,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:09,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:09,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:09,845 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:09,845 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045343612] [2021-07-13 19:01:09,845 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045343612] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:09,845 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:09,845 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:01:09,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454723622] [2021-07-13 19:01:09,846 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:01:09,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:09,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:01:09,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:01:09,846 INFO L87 Difference]: Start difference. First operand 8927 states and 24002 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:10,638 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:01:10,789 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:01:10,977 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:01:11,179 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:01:11,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:11,367 INFO L93 Difference]: Finished difference Result 14568 states and 38401 transitions. [2021-07-13 19:01:11,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:01:11,367 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:01:11,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:11,388 INFO L225 Difference]: With dead ends: 14568 [2021-07-13 19:01:11,388 INFO L226 Difference]: Without dead ends: 14568 [2021-07-13 19:01:11,388 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1336.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:01:11,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14568 states. [2021-07-13 19:01:11,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14568 to 8895. [2021-07-13 19:01:11,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8895 states, 8893 states have (on average 2.6886315079275835) internal successors, (23910), 8894 states have internal predecessors, (23910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:11,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8895 states to 8895 states and 23910 transitions. [2021-07-13 19:01:11,551 INFO L78 Accepts]: Start accepts. Automaton has 8895 states and 23910 transitions. Word has length 114 [2021-07-13 19:01:11,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:11,551 INFO L482 AbstractCegarLoop]: Abstraction has 8895 states and 23910 transitions. [2021-07-13 19:01:11,551 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:11,551 INFO L276 IsEmpty]: Start isEmpty. Operand 8895 states and 23910 transitions. [2021-07-13 19:01:11,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:01:11,563 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:11,563 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:11,563 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2021-07-13 19:01:11,563 INFO L430 AbstractCegarLoop]: === Iteration 151 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:11,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:11,563 INFO L82 PathProgramCache]: Analyzing trace with hash 190614064, now seen corresponding path program 143 times [2021-07-13 19:01:11,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:11,563 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147299025] [2021-07-13 19:01:11,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:11,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:11,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:11,871 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:11,871 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147299025] [2021-07-13 19:01:11,871 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147299025] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:11,871 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:11,871 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:01:11,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182820106] [2021-07-13 19:01:11,871 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:01:11,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:11,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:01:11,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:01:11,872 INFO L87 Difference]: Start difference. First operand 8895 states and 23910 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:12,666 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:01:12,825 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:01:13,002 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:01:13,200 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:01:13,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:13,371 INFO L93 Difference]: Finished difference Result 18130 states and 47449 transitions. [2021-07-13 19:01:13,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:01:13,372 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:01:13,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:13,399 INFO L225 Difference]: With dead ends: 18130 [2021-07-13 19:01:13,399 INFO L226 Difference]: Without dead ends: 18130 [2021-07-13 19:01:13,399 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1325.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:01:13,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18130 states. [2021-07-13 19:01:13,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18130 to 8927. [2021-07-13 19:01:13,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8927 states, 8925 states have (on average 2.689299719887955) internal successors, (24002), 8926 states have internal predecessors, (24002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:13,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8927 states to 8927 states and 24002 transitions. [2021-07-13 19:01:13,599 INFO L78 Accepts]: Start accepts. Automaton has 8927 states and 24002 transitions. Word has length 114 [2021-07-13 19:01:13,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:13,600 INFO L482 AbstractCegarLoop]: Abstraction has 8927 states and 24002 transitions. [2021-07-13 19:01:13,600 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:13,600 INFO L276 IsEmpty]: Start isEmpty. Operand 8927 states and 24002 transitions. [2021-07-13 19:01:13,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:01:13,610 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:13,610 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:13,610 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2021-07-13 19:01:13,610 INFO L430 AbstractCegarLoop]: === Iteration 152 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:13,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:13,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1894764882, now seen corresponding path program 144 times [2021-07-13 19:01:13,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:13,611 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213875215] [2021-07-13 19:01:13,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:13,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:13,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:13,971 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:13,971 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213875215] [2021-07-13 19:01:13,971 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213875215] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:13,971 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:13,971 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:01:13,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375580015] [2021-07-13 19:01:13,972 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:01:13,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:13,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:01:13,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:01:13,972 INFO L87 Difference]: Start difference. First operand 8927 states and 24002 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:14,743 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:01:14,896 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:01:15,081 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:01:15,270 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:01:15,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:15,426 INFO L93 Difference]: Finished difference Result 18943 states and 49253 transitions. [2021-07-13 19:01:15,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:01:15,426 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:01:15,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:15,454 INFO L225 Difference]: With dead ends: 18943 [2021-07-13 19:01:15,454 INFO L226 Difference]: Without dead ends: 18943 [2021-07-13 19:01:15,454 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1383.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:01:15,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18943 states. [2021-07-13 19:01:15,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18943 to 8911. [2021-07-13 19:01:15,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8911 states, 8909 states have (on average 2.6889662139409585) internal successors, (23956), 8910 states have internal predecessors, (23956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:15,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8911 states to 8911 states and 23956 transitions. [2021-07-13 19:01:15,645 INFO L78 Accepts]: Start accepts. Automaton has 8911 states and 23956 transitions. Word has length 114 [2021-07-13 19:01:15,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:15,645 INFO L482 AbstractCegarLoop]: Abstraction has 8911 states and 23956 transitions. [2021-07-13 19:01:15,646 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:15,646 INFO L276 IsEmpty]: Start isEmpty. Operand 8911 states and 23956 transitions. [2021-07-13 19:01:15,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:01:15,656 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:15,656 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:15,656 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2021-07-13 19:01:15,656 INFO L430 AbstractCegarLoop]: === Iteration 153 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:15,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:15,656 INFO L82 PathProgramCache]: Analyzing trace with hash 2125977616, now seen corresponding path program 145 times [2021-07-13 19:01:15,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:15,656 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698008360] [2021-07-13 19:01:15,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:15,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:15,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:15,985 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:15,985 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698008360] [2021-07-13 19:01:15,985 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698008360] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:15,985 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:15,985 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:01:15,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789466661] [2021-07-13 19:01:15,985 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:01:15,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:15,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:01:15,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:01:15,986 INFO L87 Difference]: Start difference. First operand 8911 states and 23956 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:16,753 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:01:16,936 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:01:17,117 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:01:17,309 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:01:17,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:17,458 INFO L93 Difference]: Finished difference Result 18269 states and 47666 transitions. [2021-07-13 19:01:17,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:01:17,459 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:01:17,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:17,485 INFO L225 Difference]: With dead ends: 18269 [2021-07-13 19:01:17,485 INFO L226 Difference]: Without dead ends: 18269 [2021-07-13 19:01:17,485 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1362.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:01:17,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18269 states. [2021-07-13 19:01:17,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18269 to 8927. [2021-07-13 19:01:17,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8927 states, 8925 states have (on average 2.689299719887955) internal successors, (24002), 8926 states have internal predecessors, (24002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:17,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8927 states to 8927 states and 24002 transitions. [2021-07-13 19:01:17,672 INFO L78 Accepts]: Start accepts. Automaton has 8927 states and 24002 transitions. Word has length 114 [2021-07-13 19:01:17,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:17,672 INFO L482 AbstractCegarLoop]: Abstraction has 8927 states and 24002 transitions. [2021-07-13 19:01:17,672 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:17,672 INFO L276 IsEmpty]: Start isEmpty. Operand 8927 states and 24002 transitions. [2021-07-13 19:01:17,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:01:17,682 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:17,682 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:17,682 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2021-07-13 19:01:17,682 INFO L430 AbstractCegarLoop]: === Iteration 154 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:17,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:17,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1877430636, now seen corresponding path program 146 times [2021-07-13 19:01:17,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:17,683 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769852345] [2021-07-13 19:01:17,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:17,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:18,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:18,002 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:18,002 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769852345] [2021-07-13 19:01:18,002 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769852345] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:18,002 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:18,002 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:01:18,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122162042] [2021-07-13 19:01:18,002 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:01:18,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:18,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:01:18,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:01:18,003 INFO L87 Difference]: Start difference. First operand 8927 states and 24002 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:18,779 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:01:18,938 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:01:19,111 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:01:19,307 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:01:19,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:19,438 INFO L93 Difference]: Finished difference Result 15334 states and 40192 transitions. [2021-07-13 19:01:19,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:01:19,438 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:01:19,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:19,461 INFO L225 Difference]: With dead ends: 15334 [2021-07-13 19:01:19,461 INFO L226 Difference]: Without dead ends: 15334 [2021-07-13 19:01:19,461 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1328.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:01:19,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15334 states. [2021-07-13 19:01:19,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15334 to 8863. [2021-07-13 19:01:19,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8863 states, 8861 states have (on average 2.6879584696986796) internal successors, (23818), 8862 states have internal predecessors, (23818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:19,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8863 states to 8863 states and 23818 transitions. [2021-07-13 19:01:19,663 INFO L78 Accepts]: Start accepts. Automaton has 8863 states and 23818 transitions. Word has length 114 [2021-07-13 19:01:19,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:19,663 INFO L482 AbstractCegarLoop]: Abstraction has 8863 states and 23818 transitions. [2021-07-13 19:01:19,663 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:19,663 INFO L276 IsEmpty]: Start isEmpty. Operand 8863 states and 23818 transitions. [2021-07-13 19:01:19,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:01:19,673 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:19,673 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:19,673 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2021-07-13 19:01:19,673 INFO L430 AbstractCegarLoop]: === Iteration 155 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:19,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:19,674 INFO L82 PathProgramCache]: Analyzing trace with hash -1537188210, now seen corresponding path program 147 times [2021-07-13 19:01:19,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:19,674 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999508082] [2021-07-13 19:01:19,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:19,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:19,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:19,988 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:19,988 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999508082] [2021-07-13 19:01:19,988 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999508082] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:19,988 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:19,988 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:01:19,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817618549] [2021-07-13 19:01:19,988 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:01:19,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:19,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:01:19,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:01:19,989 INFO L87 Difference]: Start difference. First operand 8863 states and 23818 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:20,787 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:01:20,947 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:01:21,127 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:01:21,327 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:01:21,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:21,497 INFO L93 Difference]: Finished difference Result 18688 states and 48979 transitions. [2021-07-13 19:01:21,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:01:21,497 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:01:21,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:21,525 INFO L225 Difference]: With dead ends: 18688 [2021-07-13 19:01:21,525 INFO L226 Difference]: Without dead ends: 18688 [2021-07-13 19:01:21,525 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1332.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:01:21,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18688 states. [2021-07-13 19:01:21,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18688 to 8927. [2021-07-13 19:01:21,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8927 states, 8925 states have (on average 2.689299719887955) internal successors, (24002), 8926 states have internal predecessors, (24002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:21,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8927 states to 8927 states and 24002 transitions. [2021-07-13 19:01:21,734 INFO L78 Accepts]: Start accepts. Automaton has 8927 states and 24002 transitions. Word has length 114 [2021-07-13 19:01:21,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:21,734 INFO L482 AbstractCegarLoop]: Abstraction has 8927 states and 24002 transitions. [2021-07-13 19:01:21,734 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:21,734 INFO L276 IsEmpty]: Start isEmpty. Operand 8927 states and 24002 transitions. [2021-07-13 19:01:21,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:01:21,745 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:21,746 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:21,746 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2021-07-13 19:01:21,746 INFO L430 AbstractCegarLoop]: === Iteration 156 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:21,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:21,746 INFO L82 PathProgramCache]: Analyzing trace with hash 672400140, now seen corresponding path program 148 times [2021-07-13 19:01:21,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:21,746 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743715625] [2021-07-13 19:01:21,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:21,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:22,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:22,058 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:22,058 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743715625] [2021-07-13 19:01:22,058 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743715625] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:22,058 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:22,058 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:01:22,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19439920] [2021-07-13 19:01:22,059 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:01:22,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:22,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:01:22,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:01:22,059 INFO L87 Difference]: Start difference. First operand 8927 states and 24002 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:22,910 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:01:23,069 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:01:23,263 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:01:23,459 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:01:23,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:23,666 INFO L93 Difference]: Finished difference Result 19501 states and 50783 transitions. [2021-07-13 19:01:23,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:01:23,666 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:01:23,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:23,697 INFO L225 Difference]: With dead ends: 19501 [2021-07-13 19:01:23,698 INFO L226 Difference]: Without dead ends: 19501 [2021-07-13 19:01:23,698 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1391.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:01:23,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19501 states. [2021-07-13 19:01:23,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19501 to 8911. [2021-07-13 19:01:23,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8911 states, 8909 states have (on average 2.6889662139409585) internal successors, (23956), 8910 states have internal predecessors, (23956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:23,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8911 states to 8911 states and 23956 transitions. [2021-07-13 19:01:23,932 INFO L78 Accepts]: Start accepts. Automaton has 8911 states and 23956 transitions. Word has length 114 [2021-07-13 19:01:23,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:23,932 INFO L482 AbstractCegarLoop]: Abstraction has 8911 states and 23956 transitions. [2021-07-13 19:01:23,932 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:23,932 INFO L276 IsEmpty]: Start isEmpty. Operand 8911 states and 23956 transitions. [2021-07-13 19:01:23,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:01:23,943 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:23,944 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:23,944 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2021-07-13 19:01:23,944 INFO L430 AbstractCegarLoop]: === Iteration 157 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:23,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:23,944 INFO L82 PathProgramCache]: Analyzing trace with hash 398175342, now seen corresponding path program 149 times [2021-07-13 19:01:23,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:23,944 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877041457] [2021-07-13 19:01:23,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:23,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:24,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:24,258 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:24,258 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877041457] [2021-07-13 19:01:24,259 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877041457] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:24,259 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:24,259 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:01:24,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725662767] [2021-07-13 19:01:24,259 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:01:24,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:24,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:01:24,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:01:24,260 INFO L87 Difference]: Start difference. First operand 8911 states and 23956 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:24,911 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-13 19:01:25,068 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:01:25,237 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:01:25,474 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:01:25,672 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:01:25,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:25,862 INFO L93 Difference]: Finished difference Result 22614 states and 58733 transitions. [2021-07-13 19:01:25,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:01:25,863 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:01:25,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:25,896 INFO L225 Difference]: With dead ends: 22614 [2021-07-13 19:01:25,897 INFO L226 Difference]: Without dead ends: 22614 [2021-07-13 19:01:25,897 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1398.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:01:25,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22614 states. [2021-07-13 19:01:26,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22614 to 8927. [2021-07-13 19:01:26,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8927 states, 8925 states have (on average 2.689299719887955) internal successors, (24002), 8926 states have internal predecessors, (24002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:26,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8927 states to 8927 states and 24002 transitions. [2021-07-13 19:01:26,121 INFO L78 Accepts]: Start accepts. Automaton has 8927 states and 24002 transitions. Word has length 114 [2021-07-13 19:01:26,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:26,121 INFO L482 AbstractCegarLoop]: Abstraction has 8927 states and 24002 transitions. [2021-07-13 19:01:26,121 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:26,121 INFO L276 IsEmpty]: Start isEmpty. Operand 8927 states and 24002 transitions. [2021-07-13 19:01:26,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:01:26,132 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:26,132 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:26,132 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2021-07-13 19:01:26,132 INFO L430 AbstractCegarLoop]: === Iteration 158 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:26,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:26,132 INFO L82 PathProgramCache]: Analyzing trace with hash 149628362, now seen corresponding path program 150 times [2021-07-13 19:01:26,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:26,133 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665678218] [2021-07-13 19:01:26,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:26,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:26,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:26,438 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:26,438 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665678218] [2021-07-13 19:01:26,438 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665678218] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:26,438 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:26,438 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:01:26,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829207846] [2021-07-13 19:01:26,439 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:01:26,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:26,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:01:26,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:01:26,439 INFO L87 Difference]: Start difference. First operand 8927 states and 24002 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:27,213 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:01:27,372 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:01:27,545 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:01:27,742 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:01:27,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:27,902 INFO L93 Difference]: Finished difference Result 19679 states and 51259 transitions. [2021-07-13 19:01:27,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:01:27,903 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:01:27,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:27,934 INFO L225 Difference]: With dead ends: 19679 [2021-07-13 19:01:27,935 INFO L226 Difference]: Without dead ends: 19679 [2021-07-13 19:01:27,935 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1324.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:01:27,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19679 states. [2021-07-13 19:01:28,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19679 to 8895. [2021-07-13 19:01:28,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8895 states, 8893 states have (on average 2.6886315079275835) internal successors, (23910), 8894 states have internal predecessors, (23910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:28,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8895 states to 8895 states and 23910 transitions. [2021-07-13 19:01:28,180 INFO L78 Accepts]: Start accepts. Automaton has 8895 states and 23910 transitions. Word has length 114 [2021-07-13 19:01:28,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:28,181 INFO L482 AbstractCegarLoop]: Abstraction has 8895 states and 23910 transitions. [2021-07-13 19:01:28,181 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:28,181 INFO L276 IsEmpty]: Start isEmpty. Operand 8895 states and 23910 transitions. [2021-07-13 19:01:28,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:01:28,191 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:28,191 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:28,191 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2021-07-13 19:01:28,191 INFO L430 AbstractCegarLoop]: === Iteration 159 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:28,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:28,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1628091148, now seen corresponding path program 151 times [2021-07-13 19:01:28,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:28,192 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254596956] [2021-07-13 19:01:28,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:28,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:28,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:28,509 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:28,509 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254596956] [2021-07-13 19:01:28,509 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254596956] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:28,510 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:28,510 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:01:28,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415561737] [2021-07-13 19:01:28,510 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:01:28,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:28,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:01:28,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:01:28,510 INFO L87 Difference]: Start difference. First operand 8895 states and 23910 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:29,274 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:01:29,442 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:01:29,628 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:01:29,822 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:01:29,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:29,974 INFO L93 Difference]: Finished difference Result 18811 states and 49150 transitions. [2021-07-13 19:01:29,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:01:29,974 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:01:29,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:30,001 INFO L225 Difference]: With dead ends: 18811 [2021-07-13 19:01:30,001 INFO L226 Difference]: Without dead ends: 18811 [2021-07-13 19:01:30,002 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1344.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:01:30,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18811 states. [2021-07-13 19:01:30,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18811 to 8943. [2021-07-13 19:01:30,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8943 states, 8941 states have (on average 2.689632032211162) internal successors, (24048), 8942 states have internal predecessors, (24048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:30,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8943 states to 8943 states and 24048 transitions. [2021-07-13 19:01:30,194 INFO L78 Accepts]: Start accepts. Automaton has 8943 states and 24048 transitions. Word has length 114 [2021-07-13 19:01:30,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:30,194 INFO L482 AbstractCegarLoop]: Abstraction has 8943 states and 24048 transitions. [2021-07-13 19:01:30,194 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:30,194 INFO L276 IsEmpty]: Start isEmpty. Operand 8943 states and 24048 transitions. [2021-07-13 19:01:30,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:01:30,204 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:30,204 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:30,204 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2021-07-13 19:01:30,205 INFO L430 AbstractCegarLoop]: === Iteration 160 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:30,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:30,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1379544168, now seen corresponding path program 152 times [2021-07-13 19:01:30,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:30,205 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459624987] [2021-07-13 19:01:30,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:30,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:30,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:30,523 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:30,523 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459624987] [2021-07-13 19:01:30,523 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459624987] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:30,523 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:30,523 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:01:30,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501461905] [2021-07-13 19:01:30,523 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:01:30,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:30,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:01:30,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:01:30,524 INFO L87 Difference]: Start difference. First operand 8943 states and 24048 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:31,313 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:01:31,482 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:01:31,657 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:01:31,855 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:01:31,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:31,999 INFO L93 Difference]: Finished difference Result 18651 states and 48748 transitions. [2021-07-13 19:01:31,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:01:31,999 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:01:31,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:32,025 INFO L225 Difference]: With dead ends: 18651 [2021-07-13 19:01:32,026 INFO L226 Difference]: Without dead ends: 18651 [2021-07-13 19:01:32,026 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1362.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:01:32,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18651 states. [2021-07-13 19:01:32,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18651 to 8927. [2021-07-13 19:01:32,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8927 states, 8925 states have (on average 2.689299719887955) internal successors, (24002), 8926 states have internal predecessors, (24002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:32,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8927 states to 8927 states and 24002 transitions. [2021-07-13 19:01:32,202 INFO L78 Accepts]: Start accepts. Automaton has 8927 states and 24002 transitions. Word has length 114 [2021-07-13 19:01:32,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:32,202 INFO L482 AbstractCegarLoop]: Abstraction has 8927 states and 24002 transitions. [2021-07-13 19:01:32,202 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:32,202 INFO L276 IsEmpty]: Start isEmpty. Operand 8927 states and 24002 transitions. [2021-07-13 19:01:32,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:01:32,212 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:32,212 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:32,212 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2021-07-13 19:01:32,212 INFO L430 AbstractCegarLoop]: === Iteration 161 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:32,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:32,213 INFO L82 PathProgramCache]: Analyzing trace with hash 222726864, now seen corresponding path program 153 times [2021-07-13 19:01:32,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:32,213 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076692318] [2021-07-13 19:01:32,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:32,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:32,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:32,536 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:32,536 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076692318] [2021-07-13 19:01:32,536 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076692318] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:32,536 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:32,536 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:01:32,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814730747] [2021-07-13 19:01:32,537 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:01:32,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:32,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:01:32,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:01:32,537 INFO L87 Difference]: Start difference. First operand 8927 states and 24002 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:33,321 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:01:33,473 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:01:33,690 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:01:33,907 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:01:34,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:34,045 INFO L93 Difference]: Finished difference Result 15802 states and 41488 transitions. [2021-07-13 19:01:34,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:01:34,046 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:01:34,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:34,070 INFO L225 Difference]: With dead ends: 15802 [2021-07-13 19:01:34,070 INFO L226 Difference]: Without dead ends: 15802 [2021-07-13 19:01:34,070 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1381.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:01:34,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15802 states. [2021-07-13 19:01:34,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15802 to 8799. [2021-07-13 19:01:34,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8799 states, 8797 states have (on average 2.6865977037626463) internal successors, (23634), 8798 states have internal predecessors, (23634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:34,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8799 states to 8799 states and 23634 transitions. [2021-07-13 19:01:34,246 INFO L78 Accepts]: Start accepts. Automaton has 8799 states and 23634 transitions. Word has length 114 [2021-07-13 19:01:34,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:34,246 INFO L482 AbstractCegarLoop]: Abstraction has 8799 states and 23634 transitions. [2021-07-13 19:01:34,247 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:34,247 INFO L276 IsEmpty]: Start isEmpty. Operand 8799 states and 23634 transitions. [2021-07-13 19:01:34,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:01:34,257 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:34,257 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:34,257 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2021-07-13 19:01:34,257 INFO L430 AbstractCegarLoop]: === Iteration 162 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:34,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:34,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1213368690, now seen corresponding path program 154 times [2021-07-13 19:01:34,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:34,258 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722896096] [2021-07-13 19:01:34,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:34,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:34,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:34,568 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:34,568 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722896096] [2021-07-13 19:01:34,569 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722896096] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:34,569 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:34,569 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:01:34,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102869572] [2021-07-13 19:01:34,569 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:01:34,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:34,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:01:34,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:01:34,570 INFO L87 Difference]: Start difference. First operand 8799 states and 23634 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:35,344 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:01:35,500 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:01:35,674 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:01:35,869 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:01:36,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:36,005 INFO L93 Difference]: Finished difference Result 13786 states and 36347 transitions. [2021-07-13 19:01:36,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:01:36,005 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:01:36,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:36,024 INFO L225 Difference]: With dead ends: 13786 [2021-07-13 19:01:36,024 INFO L226 Difference]: Without dead ends: 13786 [2021-07-13 19:01:36,025 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1329.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:01:36,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13786 states. [2021-07-13 19:01:36,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13786 to 8877. [2021-07-13 19:01:36,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8877 states, 8875 states have (on average 2.688338028169014) internal successors, (23859), 8876 states have internal predecessors, (23859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:36,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 23859 transitions. [2021-07-13 19:01:36,195 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 23859 transitions. Word has length 114 [2021-07-13 19:01:36,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:36,195 INFO L482 AbstractCegarLoop]: Abstraction has 8877 states and 23859 transitions. [2021-07-13 19:01:36,195 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:36,195 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 23859 transitions. [2021-07-13 19:01:36,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:01:36,204 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:36,204 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:36,205 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2021-07-13 19:01:36,205 INFO L430 AbstractCegarLoop]: === Iteration 163 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:36,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:36,205 INFO L82 PathProgramCache]: Analyzing trace with hash 996219660, now seen corresponding path program 155 times [2021-07-13 19:01:36,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:36,205 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919129489] [2021-07-13 19:01:36,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:36,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:36,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:36,562 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:36,562 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919129489] [2021-07-13 19:01:36,562 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919129489] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:36,562 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:36,562 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:01:36,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608820304] [2021-07-13 19:01:36,562 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:01:36,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:36,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:01:36,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:01:36,563 INFO L87 Difference]: Start difference. First operand 8877 states and 23859 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:37,346 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:01:37,503 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:01:37,691 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:01:37,884 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:01:38,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:38,038 INFO L93 Difference]: Finished difference Result 14599 states and 38151 transitions. [2021-07-13 19:01:38,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:01:38,039 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:01:38,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:38,060 INFO L225 Difference]: With dead ends: 14599 [2021-07-13 19:01:38,061 INFO L226 Difference]: Without dead ends: 14599 [2021-07-13 19:01:38,061 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1329.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:01:38,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14599 states. [2021-07-13 19:01:38,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14599 to 8861. [2021-07-13 19:01:38,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8861 states, 8859 states have (on average 2.68800090303646) internal successors, (23813), 8860 states have internal predecessors, (23813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:38,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8861 states to 8861 states and 23813 transitions. [2021-07-13 19:01:38,222 INFO L78 Accepts]: Start accepts. Automaton has 8861 states and 23813 transitions. Word has length 114 [2021-07-13 19:01:38,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:38,222 INFO L482 AbstractCegarLoop]: Abstraction has 8861 states and 23813 transitions. [2021-07-13 19:01:38,222 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:38,222 INFO L276 IsEmpty]: Start isEmpty. Operand 8861 states and 23813 transitions. [2021-07-13 19:01:38,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:01:38,232 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:38,232 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:38,232 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2021-07-13 19:01:38,232 INFO L430 AbstractCegarLoop]: === Iteration 164 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:38,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:38,233 INFO L82 PathProgramCache]: Analyzing trace with hash 721994862, now seen corresponding path program 156 times [2021-07-13 19:01:38,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:38,233 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641277190] [2021-07-13 19:01:38,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:38,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:38,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:38,545 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:38,545 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641277190] [2021-07-13 19:01:38,545 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641277190] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:38,545 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:38,545 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:01:38,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176523703] [2021-07-13 19:01:38,545 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:01:38,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:38,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:01:38,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:01:38,546 INFO L87 Difference]: Start difference. First operand 8861 states and 23813 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:39,196 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-13 19:01:39,346 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:01:39,502 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:01:39,683 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:01:39,876 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:01:40,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:40,026 INFO L93 Difference]: Finished difference Result 17712 states and 46101 transitions. [2021-07-13 19:01:40,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:01:40,027 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:01:40,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:40,053 INFO L225 Difference]: With dead ends: 17712 [2021-07-13 19:01:40,053 INFO L226 Difference]: Without dead ends: 17712 [2021-07-13 19:01:40,053 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1371.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:01:40,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17712 states. [2021-07-13 19:01:40,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17712 to 8877. [2021-07-13 19:01:40,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8877 states, 8875 states have (on average 2.688338028169014) internal successors, (23859), 8876 states have internal predecessors, (23859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:40,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 23859 transitions. [2021-07-13 19:01:40,234 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 23859 transitions. Word has length 114 [2021-07-13 19:01:40,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:40,234 INFO L482 AbstractCegarLoop]: Abstraction has 8877 states and 23859 transitions. [2021-07-13 19:01:40,234 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:40,235 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 23859 transitions. [2021-07-13 19:01:40,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:01:40,244 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:40,244 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:40,244 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2021-07-13 19:01:40,245 INFO L430 AbstractCegarLoop]: === Iteration 165 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:40,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:40,245 INFO L82 PathProgramCache]: Analyzing trace with hash 473447882, now seen corresponding path program 157 times [2021-07-13 19:01:40,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:40,245 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34015241] [2021-07-13 19:01:40,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:40,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:40,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:40,550 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:40,550 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34015241] [2021-07-13 19:01:40,550 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34015241] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:40,550 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:40,550 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:01:40,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605601918] [2021-07-13 19:01:40,551 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:01:40,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:40,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:01:40,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:01:40,551 INFO L87 Difference]: Start difference. First operand 8877 states and 23859 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:41,334 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:01:41,495 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:01:41,673 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:01:41,871 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:01:42,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:42,008 INFO L93 Difference]: Finished difference Result 14777 states and 38627 transitions. [2021-07-13 19:01:42,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:01:42,009 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:01:42,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:42,030 INFO L225 Difference]: With dead ends: 14777 [2021-07-13 19:01:42,030 INFO L226 Difference]: Without dead ends: 14777 [2021-07-13 19:01:42,030 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1327.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:01:42,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14777 states. [2021-07-13 19:01:42,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14777 to 8845. [2021-07-13 19:01:42,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8845 states, 8843 states have (on average 2.687662557955445) internal successors, (23767), 8844 states have internal predecessors, (23767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:42,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8845 states to 8845 states and 23767 transitions. [2021-07-13 19:01:42,221 INFO L78 Accepts]: Start accepts. Automaton has 8845 states and 23767 transitions. Word has length 114 [2021-07-13 19:01:42,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:42,221 INFO L482 AbstractCegarLoop]: Abstraction has 8845 states and 23767 transitions. [2021-07-13 19:01:42,221 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:42,221 INFO L276 IsEmpty]: Start isEmpty. Operand 8845 states and 23767 transitions. [2021-07-13 19:01:42,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:01:42,233 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:42,233 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:42,233 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2021-07-13 19:01:42,234 INFO L430 AbstractCegarLoop]: === Iteration 166 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:42,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:42,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1951910668, now seen corresponding path program 158 times [2021-07-13 19:01:42,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:42,234 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084334695] [2021-07-13 19:01:42,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:42,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:42,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:42,592 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:42,592 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084334695] [2021-07-13 19:01:42,592 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084334695] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:42,592 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:42,592 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:01:42,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685511733] [2021-07-13 19:01:42,593 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:01:42,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:42,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:01:42,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:01:42,593 INFO L87 Difference]: Start difference. First operand 8845 states and 23767 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:43,349 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:01:43,521 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:01:43,707 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:01:43,902 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:01:44,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:44,062 INFO L93 Difference]: Finished difference Result 18222 states and 47493 transitions. [2021-07-13 19:01:44,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:01:44,062 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:01:44,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:44,092 INFO L225 Difference]: With dead ends: 18222 [2021-07-13 19:01:44,092 INFO L226 Difference]: Without dead ends: 18222 [2021-07-13 19:01:44,092 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1369.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:01:44,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18222 states. [2021-07-13 19:01:44,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18222 to 8893. [2021-07-13 19:01:44,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8893 states, 8891 states have (on average 2.6886739399392643) internal successors, (23905), 8892 states have internal predecessors, (23905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:44,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8893 states to 8893 states and 23905 transitions. [2021-07-13 19:01:44,280 INFO L78 Accepts]: Start accepts. Automaton has 8893 states and 23905 transitions. Word has length 114 [2021-07-13 19:01:44,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:44,280 INFO L482 AbstractCegarLoop]: Abstraction has 8893 states and 23905 transitions. [2021-07-13 19:01:44,280 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:44,280 INFO L276 IsEmpty]: Start isEmpty. Operand 8893 states and 23905 transitions. [2021-07-13 19:01:44,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:01:44,290 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:44,290 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:44,290 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2021-07-13 19:01:44,290 INFO L430 AbstractCegarLoop]: === Iteration 167 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:44,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:44,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1703363688, now seen corresponding path program 159 times [2021-07-13 19:01:44,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:44,291 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840017987] [2021-07-13 19:01:44,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:44,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:44,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:44,618 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:44,618 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840017987] [2021-07-13 19:01:44,618 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840017987] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:44,618 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:44,618 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:01:44,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462552395] [2021-07-13 19:01:44,618 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:01:44,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:44,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:01:44,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:01:44,619 INFO L87 Difference]: Start difference. First operand 8893 states and 23905 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:45,404 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:01:45,588 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:01:45,763 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:01:45,960 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:01:46,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:46,107 INFO L93 Difference]: Finished difference Result 18062 states and 47091 transitions. [2021-07-13 19:01:46,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:01:46,107 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:01:46,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:46,132 INFO L225 Difference]: With dead ends: 18062 [2021-07-13 19:01:46,133 INFO L226 Difference]: Without dead ends: 18062 [2021-07-13 19:01:46,133 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1362.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:01:46,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18062 states. [2021-07-13 19:01:46,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18062 to 8877. [2021-07-13 19:01:46,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8877 states, 8875 states have (on average 2.688338028169014) internal successors, (23859), 8876 states have internal predecessors, (23859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:46,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 23859 transitions. [2021-07-13 19:01:46,311 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 23859 transitions. Word has length 114 [2021-07-13 19:01:46,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:46,312 INFO L482 AbstractCegarLoop]: Abstraction has 8877 states and 23859 transitions. [2021-07-13 19:01:46,312 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:46,312 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 23859 transitions. [2021-07-13 19:01:46,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:01:46,322 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:46,322 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:46,322 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2021-07-13 19:01:46,322 INFO L430 AbstractCegarLoop]: === Iteration 168 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:46,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:46,323 INFO L82 PathProgramCache]: Analyzing trace with hash 546546384, now seen corresponding path program 160 times [2021-07-13 19:01:46,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:46,323 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896739403] [2021-07-13 19:01:46,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:46,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:46,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:46,646 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:46,646 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896739403] [2021-07-13 19:01:46,646 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896739403] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:46,646 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:46,646 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:01:46,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397011518] [2021-07-13 19:01:46,647 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:01:46,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:46,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:01:46,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:01:46,647 INFO L87 Difference]: Start difference. First operand 8877 states and 23859 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:47,424 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:01:47,574 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:01:47,792 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:01:48,008 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:01:48,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:48,162 INFO L93 Difference]: Finished difference Result 15213 states and 39831 transitions. [2021-07-13 19:01:48,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:01:48,162 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:01:48,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:48,184 INFO L225 Difference]: With dead ends: 15213 [2021-07-13 19:01:48,184 INFO L226 Difference]: Without dead ends: 15213 [2021-07-13 19:01:48,185 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1373.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:01:48,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15213 states. [2021-07-13 19:01:48,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15213 to 8813. [2021-07-13 19:01:48,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8813 states, 8811 states have (on average 2.6869821813642036) internal successors, (23675), 8812 states have internal predecessors, (23675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:48,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8813 states to 8813 states and 23675 transitions. [2021-07-13 19:01:48,352 INFO L78 Accepts]: Start accepts. Automaton has 8813 states and 23675 transitions. Word has length 114 [2021-07-13 19:01:48,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:48,352 INFO L482 AbstractCegarLoop]: Abstraction has 8813 states and 23675 transitions. [2021-07-13 19:01:48,352 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:48,352 INFO L276 IsEmpty]: Start isEmpty. Operand 8813 states and 23675 transitions. [2021-07-13 19:01:48,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:01:48,362 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:48,362 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:48,362 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2021-07-13 19:01:48,362 INFO L430 AbstractCegarLoop]: === Iteration 169 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:48,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:48,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1444907788, now seen corresponding path program 161 times [2021-07-13 19:01:48,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:48,362 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047734806] [2021-07-13 19:01:48,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:48,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:48,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:48,701 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:48,701 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047734806] [2021-07-13 19:01:48,701 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047734806] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:48,701 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:48,702 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:01:48,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350227169] [2021-07-13 19:01:48,702 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:01:48,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:48,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:01:48,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:01:48,702 INFO L87 Difference]: Start difference. First operand 8813 states and 23675 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:49,479 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:01:49,671 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:01:49,872 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:01:50,071 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:01:50,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:50,222 INFO L93 Difference]: Finished difference Result 13877 states and 36426 transitions. [2021-07-13 19:01:50,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:01:50,222 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:01:50,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:50,241 INFO L225 Difference]: With dead ends: 13877 [2021-07-13 19:01:50,242 INFO L226 Difference]: Without dead ends: 13877 [2021-07-13 19:01:50,242 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1398.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:01:50,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13877 states. [2021-07-13 19:01:50,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13877 to 8875. [2021-07-13 19:01:50,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8875 states, 8873 states have (on average 2.688380480108193) internal successors, (23854), 8874 states have internal predecessors, (23854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:50,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8875 states to 8875 states and 23854 transitions. [2021-07-13 19:01:50,403 INFO L78 Accepts]: Start accepts. Automaton has 8875 states and 23854 transitions. Word has length 114 [2021-07-13 19:01:50,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:50,403 INFO L482 AbstractCegarLoop]: Abstraction has 8875 states and 23854 transitions. [2021-07-13 19:01:50,403 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:50,403 INFO L276 IsEmpty]: Start isEmpty. Operand 8875 states and 23854 transitions. [2021-07-13 19:01:50,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:01:50,465 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:50,465 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:50,465 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2021-07-13 19:01:50,465 INFO L430 AbstractCegarLoop]: === Iteration 170 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:50,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:50,466 INFO L82 PathProgramCache]: Analyzing trace with hash 1196360808, now seen corresponding path program 162 times [2021-07-13 19:01:50,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:50,466 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363281172] [2021-07-13 19:01:50,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:50,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:50,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:50,798 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:50,798 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363281172] [2021-07-13 19:01:50,798 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363281172] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:50,798 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:50,798 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:01:50,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486316184] [2021-07-13 19:01:50,799 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:01:50,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:50,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:01:50,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:01:50,799 INFO L87 Difference]: Start difference. First operand 8875 states and 23854 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:51,569 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:01:51,742 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:01:51,921 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:01:52,120 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:01:52,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:52,259 INFO L93 Difference]: Finished difference Result 13717 states and 36024 transitions. [2021-07-13 19:01:52,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:01:52,259 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:01:52,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:52,283 INFO L225 Difference]: With dead ends: 13717 [2021-07-13 19:01:52,283 INFO L226 Difference]: Without dead ends: 13717 [2021-07-13 19:01:52,284 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1348.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:01:52,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13717 states. [2021-07-13 19:01:52,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13717 to 8859. [2021-07-13 19:01:52,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8859 states, 8857 states have (on average 2.6880433555379923) internal successors, (23808), 8858 states have internal predecessors, (23808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:52,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8859 states to 8859 states and 23808 transitions. [2021-07-13 19:01:52,463 INFO L78 Accepts]: Start accepts. Automaton has 8859 states and 23808 transitions. Word has length 114 [2021-07-13 19:01:52,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:52,463 INFO L482 AbstractCegarLoop]: Abstraction has 8859 states and 23808 transitions. [2021-07-13 19:01:52,463 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:52,463 INFO L276 IsEmpty]: Start isEmpty. Operand 8859 states and 23808 transitions. [2021-07-13 19:01:52,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:01:52,474 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:52,474 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:52,474 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2021-07-13 19:01:52,474 INFO L430 AbstractCegarLoop]: === Iteration 171 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:52,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:52,475 INFO L82 PathProgramCache]: Analyzing trace with hash 39543504, now seen corresponding path program 163 times [2021-07-13 19:01:52,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:52,475 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154568574] [2021-07-13 19:01:52,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:52,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:52,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:52,834 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:52,834 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154568574] [2021-07-13 19:01:52,834 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154568574] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:52,834 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:52,834 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:01:52,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505687821] [2021-07-13 19:01:52,835 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:01:52,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:52,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:01:52,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:01:52,835 INFO L87 Difference]: Start difference. First operand 8859 states and 23808 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:53,495 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-13 19:01:53,635 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:01:53,783 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:01:53,973 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:01:54,174 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:01:54,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:54,310 INFO L93 Difference]: Finished difference Result 14005 states and 36852 transitions. [2021-07-13 19:01:54,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:01:54,310 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:01:54,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:54,332 INFO L225 Difference]: With dead ends: 14005 [2021-07-13 19:01:54,332 INFO L226 Difference]: Without dead ends: 14005 [2021-07-13 19:01:54,333 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1401.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:01:54,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14005 states. [2021-07-13 19:01:54,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14005 to 8827. [2021-07-13 19:01:54,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8827 states, 8825 states have (on average 2.6873654390934845) internal successors, (23716), 8826 states have internal predecessors, (23716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:54,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8827 states to 8827 states and 23716 transitions. [2021-07-13 19:01:54,496 INFO L78 Accepts]: Start accepts. Automaton has 8827 states and 23716 transitions. Word has length 114 [2021-07-13 19:01:54,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:54,496 INFO L482 AbstractCegarLoop]: Abstraction has 8827 states and 23716 transitions. [2021-07-13 19:01:54,496 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:54,497 INFO L276 IsEmpty]: Start isEmpty. Operand 8827 states and 23716 transitions. [2021-07-13 19:01:54,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:01:54,507 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:54,507 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:54,507 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2021-07-13 19:01:54,508 INFO L430 AbstractCegarLoop]: === Iteration 172 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:54,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:54,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1747726642, now seen corresponding path program 164 times [2021-07-13 19:01:54,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:54,508 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424654589] [2021-07-13 19:01:54,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:54,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:54,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:54,845 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:54,845 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424654589] [2021-07-13 19:01:54,845 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424654589] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:54,845 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:54,846 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:01:54,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864780240] [2021-07-13 19:01:54,846 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:01:54,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:54,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:01:54,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:01:54,846 INFO L87 Difference]: Start difference. First operand 8827 states and 23716 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:55,601 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-13 19:01:55,745 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:01:55,933 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:01:56,131 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:01:56,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:56,251 INFO L93 Difference]: Finished difference Result 10720 states and 28388 transitions. [2021-07-13 19:01:56,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:01:56,251 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:01:56,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:56,267 INFO L225 Difference]: With dead ends: 10720 [2021-07-13 19:01:56,267 INFO L226 Difference]: Without dead ends: 10720 [2021-07-13 19:01:56,267 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1333.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:01:56,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10720 states. [2021-07-13 19:01:56,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10720 to 8911. [2021-07-13 19:01:56,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8911 states, 8909 states have (on average 2.6896396902009205) internal successors, (23962), 8910 states have internal predecessors, (23962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:56,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8911 states to 8911 states and 23962 transitions. [2021-07-13 19:01:56,434 INFO L78 Accepts]: Start accepts. Automaton has 8911 states and 23962 transitions. Word has length 114 [2021-07-13 19:01:56,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:56,434 INFO L482 AbstractCegarLoop]: Abstraction has 8911 states and 23962 transitions. [2021-07-13 19:01:56,434 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:56,435 INFO L276 IsEmpty]: Start isEmpty. Operand 8911 states and 23962 transitions. [2021-07-13 19:01:56,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:01:56,445 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:56,445 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:56,445 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2021-07-13 19:01:56,445 INFO L430 AbstractCegarLoop]: === Iteration 173 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:56,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:56,446 INFO L82 PathProgramCache]: Analyzing trace with hash 58718336, now seen corresponding path program 4 times [2021-07-13 19:01:56,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:56,446 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613354296] [2021-07-13 19:01:56,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:56,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:57,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:57,021 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:57,021 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613354296] [2021-07-13 19:01:57,021 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613354296] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:57,021 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:57,021 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-07-13 19:01:57,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137198380] [2021-07-13 19:01:57,021 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-13 19:01:57,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:57,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-13 19:01:57,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=542, Unknown=0, NotChecked=0, Total=650 [2021-07-13 19:01:57,022 INFO L87 Difference]: Start difference. First operand 8911 states and 23962 transitions. Second operand has 26 states, 26 states have (on average 4.384615384615385) internal successors, (114), 26 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:01,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:01,713 INFO L93 Difference]: Finished difference Result 13036 states and 34514 transitions. [2021-07-13 19:02:01,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-07-13 19:02:01,713 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.384615384615385) internal successors, (114), 26 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:02:01,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:01,730 INFO L225 Difference]: With dead ends: 13036 [2021-07-13 19:02:01,731 INFO L226 Difference]: Without dead ends: 12923 [2021-07-13 19:02:01,731 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1206 ImplicationChecksByTransitivity, 3172.1ms TimeCoverageRelationStatistics Valid=1424, Invalid=4896, Unknown=0, NotChecked=0, Total=6320 [2021-07-13 19:02:01,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12923 states. [2021-07-13 19:02:01,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12923 to 10256. [2021-07-13 19:02:01,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10256 states, 10254 states have (on average 2.68860932319095) internal successors, (27569), 10255 states have internal predecessors, (27569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:01,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10256 states to 10256 states and 27569 transitions. [2021-07-13 19:02:01,887 INFO L78 Accepts]: Start accepts. Automaton has 10256 states and 27569 transitions. Word has length 114 [2021-07-13 19:02:01,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:01,887 INFO L482 AbstractCegarLoop]: Abstraction has 10256 states and 27569 transitions. [2021-07-13 19:02:01,887 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.384615384615385) internal successors, (114), 26 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:01,887 INFO L276 IsEmpty]: Start isEmpty. Operand 10256 states and 27569 transitions. [2021-07-13 19:02:01,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:02:01,899 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:01,899 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:01,899 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2021-07-13 19:02:01,899 INFO L430 AbstractCegarLoop]: === Iteration 174 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:01,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:01,899 INFO L82 PathProgramCache]: Analyzing trace with hash 448649464, now seen corresponding path program 165 times [2021-07-13 19:02:01,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:01,900 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287127542] [2021-07-13 19:02:01,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:01,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:02,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:02,205 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:02,205 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287127542] [2021-07-13 19:02:02,205 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287127542] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:02,205 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:02,205 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-13 19:02:02,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620758793] [2021-07-13 19:02:02,206 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-13 19:02:02,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:02,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-13 19:02:02,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-07-13 19:02:02,206 INFO L87 Difference]: Start difference. First operand 10256 states and 27569 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:03,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:03,344 INFO L93 Difference]: Finished difference Result 11823 states and 30921 transitions. [2021-07-13 19:02:03,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-13 19:02:03,344 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:02:03,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:03,359 INFO L225 Difference]: With dead ends: 11823 [2021-07-13 19:02:03,359 INFO L226 Difference]: Without dead ends: 11823 [2021-07-13 19:02:03,359 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 979.3ms TimeCoverageRelationStatistics Valid=327, Invalid=933, Unknown=0, NotChecked=0, Total=1260 [2021-07-13 19:02:03,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11823 states. [2021-07-13 19:02:03,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11823 to 10021. [2021-07-13 19:02:03,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10021 states, 10019 states have (on average 2.697874039325282) internal successors, (27030), 10020 states have internal predecessors, (27030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:03,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10021 states to 10021 states and 27030 transitions. [2021-07-13 19:02:03,527 INFO L78 Accepts]: Start accepts. Automaton has 10021 states and 27030 transitions. Word has length 114 [2021-07-13 19:02:03,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:03,528 INFO L482 AbstractCegarLoop]: Abstraction has 10021 states and 27030 transitions. [2021-07-13 19:02:03,528 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:03,528 INFO L276 IsEmpty]: Start isEmpty. Operand 10021 states and 27030 transitions. [2021-07-13 19:02:03,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:02:03,540 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:03,541 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:03,541 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2021-07-13 19:02:03,541 INFO L430 AbstractCegarLoop]: === Iteration 175 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:03,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:03,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1053788490, now seen corresponding path program 166 times [2021-07-13 19:02:03,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:03,541 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839293301] [2021-07-13 19:02:03,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:03,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:03,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:03,888 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:03,888 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839293301] [2021-07-13 19:02:03,888 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839293301] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:03,888 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:03,888 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:02:03,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271206342] [2021-07-13 19:02:03,888 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:02:03,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:03,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:02:03,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:02:03,889 INFO L87 Difference]: Start difference. First operand 10021 states and 27030 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:04,660 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:02:04,832 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:02:05,003 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:02:05,201 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:02:05,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:05,369 INFO L93 Difference]: Finished difference Result 21627 states and 57583 transitions. [2021-07-13 19:02:05,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:02:05,370 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:02:05,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:05,403 INFO L225 Difference]: With dead ends: 21627 [2021-07-13 19:02:05,403 INFO L226 Difference]: Without dead ends: 21627 [2021-07-13 19:02:05,404 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1344.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:02:05,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21627 states. [2021-07-13 19:02:05,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21627 to 10197. [2021-07-13 19:02:05,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10197 states, 10195 states have (on average 2.700931829328102) internal successors, (27536), 10196 states have internal predecessors, (27536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:05,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10197 states to 10197 states and 27536 transitions. [2021-07-13 19:02:05,639 INFO L78 Accepts]: Start accepts. Automaton has 10197 states and 27536 transitions. Word has length 114 [2021-07-13 19:02:05,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:05,640 INFO L482 AbstractCegarLoop]: Abstraction has 10197 states and 27536 transitions. [2021-07-13 19:02:05,640 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:05,640 INFO L276 IsEmpty]: Start isEmpty. Operand 10197 states and 27536 transitions. [2021-07-13 19:02:05,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:02:05,655 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:05,655 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:05,655 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2021-07-13 19:02:05,655 INFO L430 AbstractCegarLoop]: === Iteration 176 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:05,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:05,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1031590456, now seen corresponding path program 167 times [2021-07-13 19:02:05,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:05,655 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835315543] [2021-07-13 19:02:05,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:05,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:06,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:06,056 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:06,056 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835315543] [2021-07-13 19:02:06,056 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835315543] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:06,056 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:06,056 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:02:06,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126829157] [2021-07-13 19:02:06,056 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:02:06,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:06,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:02:06,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:02:06,057 INFO L87 Difference]: Start difference. First operand 10197 states and 27536 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:06,826 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:02:06,996 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:02:07,180 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:02:07,375 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:02:07,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:07,539 INFO L93 Difference]: Finished difference Result 21205 states and 56069 transitions. [2021-07-13 19:02:07,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:02:07,539 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:02:07,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:07,570 INFO L225 Difference]: With dead ends: 21205 [2021-07-13 19:02:07,570 INFO L226 Difference]: Without dead ends: 21205 [2021-07-13 19:02:07,571 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1352.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:02:07,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21205 states. [2021-07-13 19:02:07,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21205 to 10197. [2021-07-13 19:02:07,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10197 states, 10195 states have (on average 2.6991662579695928) internal successors, (27518), 10196 states have internal predecessors, (27518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:07,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10197 states to 10197 states and 27518 transitions. [2021-07-13 19:02:07,800 INFO L78 Accepts]: Start accepts. Automaton has 10197 states and 27518 transitions. Word has length 114 [2021-07-13 19:02:07,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:07,800 INFO L482 AbstractCegarLoop]: Abstraction has 10197 states and 27518 transitions. [2021-07-13 19:02:07,800 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:07,800 INFO L276 IsEmpty]: Start isEmpty. Operand 10197 states and 27518 transitions. [2021-07-13 19:02:07,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:02:07,812 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:07,812 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:07,812 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2021-07-13 19:02:07,812 INFO L430 AbstractCegarLoop]: === Iteration 177 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:07,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:07,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1624263466, now seen corresponding path program 168 times [2021-07-13 19:02:07,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:07,813 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941912958] [2021-07-13 19:02:07,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:07,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:08,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:08,162 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:08,162 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941912958] [2021-07-13 19:02:08,162 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941912958] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:08,162 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:08,162 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:02:08,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110666817] [2021-07-13 19:02:08,162 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:02:08,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:08,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:02:08,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:02:08,163 INFO L87 Difference]: Start difference. First operand 10197 states and 27518 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:08,696 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-07-13 19:02:08,979 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:02:09,129 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:02:09,315 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:02:09,516 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:02:09,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:09,675 INFO L93 Difference]: Finished difference Result 18683 states and 49562 transitions. [2021-07-13 19:02:09,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:02:09,675 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:02:09,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:09,703 INFO L225 Difference]: With dead ends: 18683 [2021-07-13 19:02:09,703 INFO L226 Difference]: Without dead ends: 18683 [2021-07-13 19:02:09,703 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1370.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:02:09,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18683 states. [2021-07-13 19:02:09,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18683 to 10169. [2021-07-13 19:02:09,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10169 states, 10167 states have (on average 2.6985344742795316) internal successors, (27436), 10168 states have internal predecessors, (27436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:09,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10169 states to 10169 states and 27436 transitions. [2021-07-13 19:02:09,907 INFO L78 Accepts]: Start accepts. Automaton has 10169 states and 27436 transitions. Word has length 114 [2021-07-13 19:02:09,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:09,907 INFO L482 AbstractCegarLoop]: Abstraction has 10169 states and 27436 transitions. [2021-07-13 19:02:09,907 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:09,907 INFO L276 IsEmpty]: Start isEmpty. Operand 10169 states and 27436 transitions. [2021-07-13 19:02:09,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:02:09,919 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:09,919 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:09,920 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2021-07-13 19:02:09,920 INFO L430 AbstractCegarLoop]: === Iteration 178 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:09,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:09,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1922664140, now seen corresponding path program 169 times [2021-07-13 19:02:09,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:09,920 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783875693] [2021-07-13 19:02:09,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:09,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:10,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:10,228 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:10,228 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783875693] [2021-07-13 19:02:10,228 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783875693] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:10,228 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:10,228 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:02:10,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778366379] [2021-07-13 19:02:10,228 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:02:10,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:10,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:02:10,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:02:10,229 INFO L87 Difference]: Start difference. First operand 10169 states and 27436 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:11,032 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:02:11,201 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:02:11,378 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:02:11,614 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:02:11,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:11,789 INFO L93 Difference]: Finished difference Result 22245 states and 58610 transitions. [2021-07-13 19:02:11,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:02:11,790 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:02:11,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:11,822 INFO L225 Difference]: With dead ends: 22245 [2021-07-13 19:02:11,823 INFO L226 Difference]: Without dead ends: 22245 [2021-07-13 19:02:11,823 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1380.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:02:11,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22245 states. [2021-07-13 19:02:12,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22245 to 10201. [2021-07-13 19:02:12,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10201 states, 10199 states have (on average 2.6990881458966567) internal successors, (27528), 10200 states have internal predecessors, (27528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:12,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10201 states to 10201 states and 27528 transitions. [2021-07-13 19:02:12,056 INFO L78 Accepts]: Start accepts. Automaton has 10201 states and 27528 transitions. Word has length 114 [2021-07-13 19:02:12,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:12,056 INFO L482 AbstractCegarLoop]: Abstraction has 10201 states and 27528 transitions. [2021-07-13 19:02:12,056 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:12,056 INFO L276 IsEmpty]: Start isEmpty. Operand 10201 states and 27528 transitions. [2021-07-13 19:02:12,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:02:12,068 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:12,068 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:12,069 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2021-07-13 19:02:12,069 INFO L430 AbstractCegarLoop]: === Iteration 179 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:12,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:12,069 INFO L82 PathProgramCache]: Analyzing trace with hash -162714806, now seen corresponding path program 170 times [2021-07-13 19:02:12,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:12,069 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081496505] [2021-07-13 19:02:12,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:12,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:12,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:12,386 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:12,386 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081496505] [2021-07-13 19:02:12,386 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081496505] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:12,386 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:12,386 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:02:12,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198585525] [2021-07-13 19:02:12,386 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:02:12,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:12,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:02:12,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:02:12,386 INFO L87 Difference]: Start difference. First operand 10201 states and 27528 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:13,165 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:02:13,320 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:02:13,525 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:02:13,717 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:02:13,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:13,895 INFO L93 Difference]: Finished difference Result 23058 states and 60414 transitions. [2021-07-13 19:02:13,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:02:13,895 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:02:13,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:13,928 INFO L225 Difference]: With dead ends: 23058 [2021-07-13 19:02:13,928 INFO L226 Difference]: Without dead ends: 23058 [2021-07-13 19:02:13,929 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1341.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:02:13,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23058 states. [2021-07-13 19:02:14,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23058 to 10185. [2021-07-13 19:02:14,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10185 states, 10183 states have (on average 2.698811745065305) internal successors, (27482), 10184 states have internal predecessors, (27482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:14,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10185 states to 10185 states and 27482 transitions. [2021-07-13 19:02:14,194 INFO L78 Accepts]: Start accepts. Automaton has 10185 states and 27482 transitions. Word has length 114 [2021-07-13 19:02:14,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:14,194 INFO L482 AbstractCegarLoop]: Abstraction has 10185 states and 27482 transitions. [2021-07-13 19:02:14,194 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:14,194 INFO L276 IsEmpty]: Start isEmpty. Operand 10185 states and 27482 transitions. [2021-07-13 19:02:14,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:02:14,206 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:14,206 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:14,206 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2021-07-13 19:02:14,207 INFO L430 AbstractCegarLoop]: === Iteration 180 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:14,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:14,207 INFO L82 PathProgramCache]: Analyzing trace with hash -436939604, now seen corresponding path program 171 times [2021-07-13 19:02:14,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:14,207 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743918624] [2021-07-13 19:02:14,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:14,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:14,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:14,523 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:14,523 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743918624] [2021-07-13 19:02:14,523 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743918624] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:14,523 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:14,523 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:02:14,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661090791] [2021-07-13 19:02:14,524 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:02:14,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:14,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:02:14,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:02:14,524 INFO L87 Difference]: Start difference. First operand 10185 states and 27482 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:15,323 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:02:15,483 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:02:15,670 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:02:15,867 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:02:16,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:16,048 INFO L93 Difference]: Finished difference Result 22384 states and 58827 transitions. [2021-07-13 19:02:16,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:02:16,048 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:02:16,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:16,094 INFO L225 Difference]: With dead ends: 22384 [2021-07-13 19:02:16,095 INFO L226 Difference]: Without dead ends: 22384 [2021-07-13 19:02:16,095 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1349.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:02:16,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22384 states. [2021-07-13 19:02:16,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22384 to 10201. [2021-07-13 19:02:16,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10201 states, 10199 states have (on average 2.6990881458966567) internal successors, (27528), 10200 states have internal predecessors, (27528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:16,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10201 states to 10201 states and 27528 transitions. [2021-07-13 19:02:16,364 INFO L78 Accepts]: Start accepts. Automaton has 10201 states and 27528 transitions. Word has length 114 [2021-07-13 19:02:16,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:16,364 INFO L482 AbstractCegarLoop]: Abstraction has 10201 states and 27528 transitions. [2021-07-13 19:02:16,364 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:16,365 INFO L276 IsEmpty]: Start isEmpty. Operand 10201 states and 27528 transitions. [2021-07-13 19:02:16,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:02:16,376 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:16,376 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:16,376 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2021-07-13 19:02:16,376 INFO L430 AbstractCegarLoop]: === Iteration 181 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:16,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:16,376 INFO L82 PathProgramCache]: Analyzing trace with hash -685486584, now seen corresponding path program 172 times [2021-07-13 19:02:16,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:16,376 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490607062] [2021-07-13 19:02:16,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:16,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:16,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:16,698 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:16,699 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490607062] [2021-07-13 19:02:16,699 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490607062] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:16,699 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:16,699 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:02:16,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133644747] [2021-07-13 19:02:16,699 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:02:16,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:16,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:02:16,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:02:16,699 INFO L87 Difference]: Start difference. First operand 10201 states and 27528 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:17,498 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:02:17,672 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:02:17,845 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:02:18,054 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:02:18,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:18,200 INFO L93 Difference]: Finished difference Result 19449 states and 51353 transitions. [2021-07-13 19:02:18,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:02:18,200 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:02:18,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:18,227 INFO L225 Difference]: With dead ends: 19449 [2021-07-13 19:02:18,227 INFO L226 Difference]: Without dead ends: 19449 [2021-07-13 19:02:18,227 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1382.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:02:18,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19449 states. [2021-07-13 19:02:18,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19449 to 10157. [2021-07-13 19:02:18,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10157 states, 10155 states have (on average 2.697587395371738) internal successors, (27394), 10156 states have internal predecessors, (27394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:18,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10157 states to 10157 states and 27394 transitions. [2021-07-13 19:02:18,430 INFO L78 Accepts]: Start accepts. Automaton has 10157 states and 27394 transitions. Word has length 114 [2021-07-13 19:02:18,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:18,430 INFO L482 AbstractCegarLoop]: Abstraction has 10157 states and 27394 transitions. [2021-07-13 19:02:18,430 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:18,430 INFO L276 IsEmpty]: Start isEmpty. Operand 10157 states and 27394 transitions. [2021-07-13 19:02:18,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:02:18,444 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:18,444 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:18,444 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2021-07-13 19:02:18,444 INFO L430 AbstractCegarLoop]: === Iteration 182 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:18,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:18,444 INFO L82 PathProgramCache]: Analyzing trace with hash 194861866, now seen corresponding path program 173 times [2021-07-13 19:02:18,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:18,444 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554496188] [2021-07-13 19:02:18,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:18,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:18,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:18,771 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:18,771 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554496188] [2021-07-13 19:02:18,771 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554496188] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:18,771 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:18,771 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:02:18,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206924725] [2021-07-13 19:02:18,771 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:02:18,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:18,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:02:18,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:02:18,772 INFO L87 Difference]: Start difference. First operand 10157 states and 27394 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:19,551 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:02:19,709 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:02:19,912 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:02:20,107 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:02:20,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:20,262 INFO L93 Difference]: Finished difference Result 18621 states and 49416 transitions. [2021-07-13 19:02:20,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:02:20,263 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:02:20,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:20,289 INFO L225 Difference]: With dead ends: 18621 [2021-07-13 19:02:20,289 INFO L226 Difference]: Without dead ends: 18621 [2021-07-13 19:02:20,289 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1344.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:02:20,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18621 states. [2021-07-13 19:02:20,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18621 to 10221. [2021-07-13 19:02:20,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10221 states, 10219 states have (on average 2.6986985027889228) internal successors, (27578), 10220 states have internal predecessors, (27578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:20,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10221 states to 10221 states and 27578 transitions. [2021-07-13 19:02:20,485 INFO L78 Accepts]: Start accepts. Automaton has 10221 states and 27578 transitions. Word has length 114 [2021-07-13 19:02:20,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:20,485 INFO L482 AbstractCegarLoop]: Abstraction has 10221 states and 27578 transitions. [2021-07-13 19:02:20,485 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:20,485 INFO L276 IsEmpty]: Start isEmpty. Operand 10221 states and 27578 transitions. [2021-07-13 19:02:20,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:02:20,497 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:20,497 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:20,497 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2021-07-13 19:02:20,497 INFO L430 AbstractCegarLoop]: === Iteration 183 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:20,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:20,498 INFO L82 PathProgramCache]: Analyzing trace with hash -1890517080, now seen corresponding path program 174 times [2021-07-13 19:02:20,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:20,498 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743580930] [2021-07-13 19:02:20,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:20,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:20,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:20,814 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:20,814 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743580930] [2021-07-13 19:02:20,814 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743580930] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:20,814 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:20,814 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:02:20,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531738081] [2021-07-13 19:02:20,815 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:02:20,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:20,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:02:20,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:02:20,815 INFO L87 Difference]: Start difference. First operand 10221 states and 27578 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:21,618 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:02:21,779 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:02:21,971 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:02:22,166 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:02:22,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:22,352 INFO L93 Difference]: Finished difference Result 19434 states and 51220 transitions. [2021-07-13 19:02:22,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:02:22,353 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:02:22,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:22,383 INFO L225 Difference]: With dead ends: 19434 [2021-07-13 19:02:22,383 INFO L226 Difference]: Without dead ends: 19434 [2021-07-13 19:02:22,384 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1347.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:02:22,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19434 states. [2021-07-13 19:02:22,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19434 to 10205. [2021-07-13 19:02:22,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10205 states, 10203 states have (on average 2.6984220327354698) internal successors, (27532), 10204 states have internal predecessors, (27532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:22,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10205 states to 10205 states and 27532 transitions. [2021-07-13 19:02:22,632 INFO L78 Accepts]: Start accepts. Automaton has 10205 states and 27532 transitions. Word has length 114 [2021-07-13 19:02:22,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:22,632 INFO L482 AbstractCegarLoop]: Abstraction has 10205 states and 27532 transitions. [2021-07-13 19:02:22,632 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:22,632 INFO L276 IsEmpty]: Start isEmpty. Operand 10205 states and 27532 transitions. [2021-07-13 19:02:22,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:02:22,644 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:22,644 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:22,644 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2021-07-13 19:02:22,644 INFO L430 AbstractCegarLoop]: === Iteration 184 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:22,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:22,644 INFO L82 PathProgramCache]: Analyzing trace with hash 2130225418, now seen corresponding path program 175 times [2021-07-13 19:02:22,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:22,645 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830268696] [2021-07-13 19:02:22,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:22,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:22,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:22,959 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:22,959 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830268696] [2021-07-13 19:02:22,960 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830268696] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:22,960 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:22,960 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:02:22,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123209396] [2021-07-13 19:02:22,960 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:02:22,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:22,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:02:22,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:02:22,960 INFO L87 Difference]: Start difference. First operand 10205 states and 27532 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:23,736 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:02:23,895 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:02:24,078 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:02:24,272 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:02:24,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:24,447 INFO L93 Difference]: Finished difference Result 22547 states and 59170 transitions. [2021-07-13 19:02:24,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:02:24,448 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:02:24,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:24,480 INFO L225 Difference]: With dead ends: 22547 [2021-07-13 19:02:24,480 INFO L226 Difference]: Without dead ends: 22547 [2021-07-13 19:02:24,480 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1343.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:02:24,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22547 states. [2021-07-13 19:02:24,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22547 to 10221. [2021-07-13 19:02:24,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10221 states, 10219 states have (on average 2.6986985027889228) internal successors, (27578), 10220 states have internal predecessors, (27578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:24,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10221 states to 10221 states and 27578 transitions. [2021-07-13 19:02:24,705 INFO L78 Accepts]: Start accepts. Automaton has 10221 states and 27578 transitions. Word has length 114 [2021-07-13 19:02:24,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:24,705 INFO L482 AbstractCegarLoop]: Abstraction has 10221 states and 27578 transitions. [2021-07-13 19:02:24,705 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:24,705 INFO L276 IsEmpty]: Start isEmpty. Operand 10221 states and 27578 transitions. [2021-07-13 19:02:24,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:02:24,717 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:24,717 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:24,717 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2021-07-13 19:02:24,717 INFO L430 AbstractCegarLoop]: === Iteration 185 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:24,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:24,717 INFO L82 PathProgramCache]: Analyzing trace with hash 1881678438, now seen corresponding path program 176 times [2021-07-13 19:02:24,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:24,718 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301227548] [2021-07-13 19:02:24,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:24,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:25,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:25,084 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:25,084 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301227548] [2021-07-13 19:02:25,084 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301227548] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:25,084 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:25,084 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:02:25,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399139339] [2021-07-13 19:02:25,084 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:02:25,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:25,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:02:25,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:02:25,085 INFO L87 Difference]: Start difference. First operand 10221 states and 27578 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:25,860 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:02:26,019 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:02:26,193 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:02:26,389 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:02:26,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:26,535 INFO L93 Difference]: Finished difference Result 19612 states and 51696 transitions. [2021-07-13 19:02:26,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:02:26,535 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:02:26,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:26,563 INFO L225 Difference]: With dead ends: 19612 [2021-07-13 19:02:26,563 INFO L226 Difference]: Without dead ends: 19612 [2021-07-13 19:02:26,563 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1389.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:02:26,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19612 states. [2021-07-13 19:02:26,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19612 to 10189. [2021-07-13 19:02:26,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10189 states, 10187 states have (on average 2.6981446942181213) internal successors, (27486), 10188 states have internal predecessors, (27486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:26,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10189 states to 10189 states and 27486 transitions. [2021-07-13 19:02:26,765 INFO L78 Accepts]: Start accepts. Automaton has 10189 states and 27486 transitions. Word has length 114 [2021-07-13 19:02:26,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:26,765 INFO L482 AbstractCegarLoop]: Abstraction has 10189 states and 27486 transitions. [2021-07-13 19:02:26,765 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:26,765 INFO L276 IsEmpty]: Start isEmpty. Operand 10189 states and 27486 transitions. [2021-07-13 19:02:26,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:02:26,777 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:26,777 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:26,777 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2021-07-13 19:02:26,777 INFO L430 AbstractCegarLoop]: === Iteration 186 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:26,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:26,777 INFO L82 PathProgramCache]: Analyzing trace with hash -934826072, now seen corresponding path program 177 times [2021-07-13 19:02:26,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:26,777 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497475739] [2021-07-13 19:02:26,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:26,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:27,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:27,100 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:27,100 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497475739] [2021-07-13 19:02:27,100 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497475739] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:27,100 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:27,100 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:02:27,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64752654] [2021-07-13 19:02:27,100 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:02:27,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:27,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:02:27,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:02:27,101 INFO L87 Difference]: Start difference. First operand 10189 states and 27486 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:27,896 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:02:28,062 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:02:28,246 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:02:28,440 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:02:28,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:28,589 INFO L93 Difference]: Finished difference Result 18744 states and 49587 transitions. [2021-07-13 19:02:28,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:02:28,590 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:02:28,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:28,615 INFO L225 Difference]: With dead ends: 18744 [2021-07-13 19:02:28,615 INFO L226 Difference]: Without dead ends: 18744 [2021-07-13 19:02:28,615 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1380.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:02:28,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18744 states. [2021-07-13 19:02:28,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18744 to 10237. [2021-07-13 19:02:28,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10237 states, 10235 states have (on average 2.698974108451392) internal successors, (27624), 10236 states have internal predecessors, (27624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:28,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10237 states to 10237 states and 27624 transitions. [2021-07-13 19:02:28,804 INFO L78 Accepts]: Start accepts. Automaton has 10237 states and 27624 transitions. Word has length 114 [2021-07-13 19:02:28,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:28,805 INFO L482 AbstractCegarLoop]: Abstraction has 10237 states and 27624 transitions. [2021-07-13 19:02:28,805 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:28,805 INFO L276 IsEmpty]: Start isEmpty. Operand 10237 states and 27624 transitions. [2021-07-13 19:02:28,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:02:28,816 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:28,816 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:28,816 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2021-07-13 19:02:28,816 INFO L430 AbstractCegarLoop]: === Iteration 187 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:28,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:28,816 INFO L82 PathProgramCache]: Analyzing trace with hash -1183373052, now seen corresponding path program 178 times [2021-07-13 19:02:28,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:28,817 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398281402] [2021-07-13 19:02:28,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:28,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:29,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:29,131 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:29,131 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398281402] [2021-07-13 19:02:29,131 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398281402] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:29,131 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:29,131 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:02:29,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116472745] [2021-07-13 19:02:29,131 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:02:29,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:29,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:02:29,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:02:29,132 INFO L87 Difference]: Start difference. First operand 10237 states and 27624 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:29,897 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:02:30,065 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:02:30,239 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:02:30,436 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:02:30,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:30,586 INFO L93 Difference]: Finished difference Result 18584 states and 49185 transitions. [2021-07-13 19:02:30,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:02:30,586 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:02:30,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:30,613 INFO L225 Difference]: With dead ends: 18584 [2021-07-13 19:02:30,614 INFO L226 Difference]: Without dead ends: 18584 [2021-07-13 19:02:30,614 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1333.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:02:30,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18584 states. [2021-07-13 19:02:30,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18584 to 10221. [2021-07-13 19:02:30,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10221 states, 10219 states have (on average 2.6986985027889228) internal successors, (27578), 10220 states have internal predecessors, (27578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:30,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10221 states to 10221 states and 27578 transitions. [2021-07-13 19:02:30,829 INFO L78 Accepts]: Start accepts. Automaton has 10221 states and 27578 transitions. Word has length 114 [2021-07-13 19:02:30,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:30,829 INFO L482 AbstractCegarLoop]: Abstraction has 10221 states and 27578 transitions. [2021-07-13 19:02:30,829 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:30,829 INFO L276 IsEmpty]: Start isEmpty. Operand 10221 states and 27578 transitions. [2021-07-13 19:02:30,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:02:30,841 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:30,841 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:30,841 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2021-07-13 19:02:30,841 INFO L430 AbstractCegarLoop]: === Iteration 188 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:30,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:30,841 INFO L82 PathProgramCache]: Analyzing trace with hash 1954776940, now seen corresponding path program 179 times [2021-07-13 19:02:30,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:30,841 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605723367] [2021-07-13 19:02:30,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:30,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:31,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:31,165 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:31,166 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605723367] [2021-07-13 19:02:31,166 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605723367] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:31,166 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:31,166 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:02:31,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782819267] [2021-07-13 19:02:31,166 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:02:31,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:31,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:02:31,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:02:31,166 INFO L87 Difference]: Start difference. First operand 10221 states and 27578 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:31,950 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:02:32,099 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:02:32,288 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:02:32,488 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:02:32,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:32,649 INFO L93 Difference]: Finished difference Result 16017 states and 42639 transitions. [2021-07-13 19:02:32,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:02:32,649 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:02:32,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:32,672 INFO L225 Difference]: With dead ends: 16017 [2021-07-13 19:02:32,673 INFO L226 Difference]: Without dead ends: 16017 [2021-07-13 19:02:32,673 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1328.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:02:32,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16017 states. [2021-07-13 19:02:32,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16017 to 10133. [2021-07-13 19:02:32,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10133 states, 10131 states have (on average 2.6956865067614255) internal successors, (27310), 10132 states have internal predecessors, (27310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:32,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10133 states to 10133 states and 27310 transitions. [2021-07-13 19:02:32,845 INFO L78 Accepts]: Start accepts. Automaton has 10133 states and 27310 transitions. Word has length 114 [2021-07-13 19:02:32,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:32,845 INFO L482 AbstractCegarLoop]: Abstraction has 10133 states and 27310 transitions. [2021-07-13 19:02:32,845 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:32,845 INFO L276 IsEmpty]: Start isEmpty. Operand 10133 states and 27310 transitions. [2021-07-13 19:02:32,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:02:32,857 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:32,857 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:32,857 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2021-07-13 19:02:32,857 INFO L430 AbstractCegarLoop]: === Iteration 189 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:32,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:32,857 INFO L82 PathProgramCache]: Analyzing trace with hash 215767850, now seen corresponding path program 180 times [2021-07-13 19:02:32,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:32,857 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864815761] [2021-07-13 19:02:32,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:32,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:33,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:33,243 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:33,243 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864815761] [2021-07-13 19:02:33,243 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864815761] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:33,243 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:33,243 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:02:33,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206595130] [2021-07-13 19:02:33,243 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:02:33,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:33,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:02:33,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:02:33,244 INFO L87 Difference]: Start difference. First operand 10133 states and 27310 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:34,027 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:02:34,202 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:02:34,392 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:02:34,594 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:02:34,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:34,782 INFO L93 Difference]: Finished difference Result 26376 states and 69810 transitions. [2021-07-13 19:02:34,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:02:34,782 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:02:34,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:34,824 INFO L225 Difference]: With dead ends: 26376 [2021-07-13 19:02:34,824 INFO L226 Difference]: Without dead ends: 26376 [2021-07-13 19:02:34,824 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1425.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:02:34,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26376 states. [2021-07-13 19:02:35,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26376 to 10229. [2021-07-13 19:02:35,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10229 states, 10227 states have (on average 2.697369707636648) internal successors, (27586), 10228 states have internal predecessors, (27586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:35,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10229 states to 10229 states and 27586 transitions. [2021-07-13 19:02:35,091 INFO L78 Accepts]: Start accepts. Automaton has 10229 states and 27586 transitions. Word has length 114 [2021-07-13 19:02:35,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:35,091 INFO L482 AbstractCegarLoop]: Abstraction has 10229 states and 27586 transitions. [2021-07-13 19:02:35,091 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:35,091 INFO L276 IsEmpty]: Start isEmpty. Operand 10229 states and 27586 transitions. [2021-07-13 19:02:35,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:02:35,103 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:35,103 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:35,103 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2021-07-13 19:02:35,103 INFO L430 AbstractCegarLoop]: === Iteration 190 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:35,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:35,103 INFO L82 PathProgramCache]: Analyzing trace with hash -1869611096, now seen corresponding path program 181 times [2021-07-13 19:02:35,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:35,103 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819102366] [2021-07-13 19:02:35,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:35,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:35,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:35,430 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:35,430 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819102366] [2021-07-13 19:02:35,430 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819102366] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:35,430 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:35,430 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:02:35,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4013189] [2021-07-13 19:02:35,430 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:02:35,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:35,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:02:35,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:02:35,431 INFO L87 Difference]: Start difference. First operand 10229 states and 27586 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:35,977 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-07-13 19:02:36,244 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:02:36,417 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:02:36,605 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:02:36,801 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:02:36,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:36,994 INFO L93 Difference]: Finished difference Result 25954 states and 68296 transitions. [2021-07-13 19:02:36,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:02:36,994 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:02:36,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:37,035 INFO L225 Difference]: With dead ends: 25954 [2021-07-13 19:02:37,036 INFO L226 Difference]: Without dead ends: 25954 [2021-07-13 19:02:37,036 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1406.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:02:37,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25954 states. [2021-07-13 19:02:37,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25954 to 10213. [2021-07-13 19:02:37,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10213 states, 10211 states have (on average 2.6970913720497505) internal successors, (27540), 10212 states have internal predecessors, (27540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:37,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10213 states to 10213 states and 27540 transitions. [2021-07-13 19:02:37,296 INFO L78 Accepts]: Start accepts. Automaton has 10213 states and 27540 transitions. Word has length 114 [2021-07-13 19:02:37,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:37,296 INFO L482 AbstractCegarLoop]: Abstraction has 10213 states and 27540 transitions. [2021-07-13 19:02:37,296 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:37,296 INFO L276 IsEmpty]: Start isEmpty. Operand 10213 states and 27540 transitions. [2021-07-13 19:02:37,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:02:37,309 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:37,309 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:37,309 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2021-07-13 19:02:37,309 INFO L430 AbstractCegarLoop]: === Iteration 191 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:37,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:37,309 INFO L82 PathProgramCache]: Analyzing trace with hash 786242826, now seen corresponding path program 182 times [2021-07-13 19:02:37,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:37,309 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823754427] [2021-07-13 19:02:37,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:37,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:37,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:37,743 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:37,743 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823754427] [2021-07-13 19:02:37,743 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823754427] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:37,743 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:37,743 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:02:37,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729800585] [2021-07-13 19:02:37,743 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:02:37,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:37,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:02:37,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:02:37,744 INFO L87 Difference]: Start difference. First operand 10213 states and 27540 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:38,377 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-13 19:02:38,524 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:02:38,676 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:02:38,870 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:02:39,102 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:02:39,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:39,280 INFO L93 Difference]: Finished difference Result 23432 states and 61789 transitions. [2021-07-13 19:02:39,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:02:39,281 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:02:39,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:39,315 INFO L225 Difference]: With dead ends: 23432 [2021-07-13 19:02:39,315 INFO L226 Difference]: Without dead ends: 23432 [2021-07-13 19:02:39,315 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1433.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:02:39,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23432 states. [2021-07-13 19:02:39,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23432 to 10181. [2021-07-13 19:02:39,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10181 states, 10179 states have (on average 2.6965320758424207) internal successors, (27448), 10180 states have internal predecessors, (27448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:39,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10181 states to 10181 states and 27448 transitions. [2021-07-13 19:02:39,561 INFO L78 Accepts]: Start accepts. Automaton has 10181 states and 27448 transitions. Word has length 114 [2021-07-13 19:02:39,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:39,561 INFO L482 AbstractCegarLoop]: Abstraction has 10181 states and 27448 transitions. [2021-07-13 19:02:39,561 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:39,562 INFO L276 IsEmpty]: Start isEmpty. Operand 10181 states and 27448 transitions. [2021-07-13 19:02:39,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:02:39,573 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:39,573 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:39,573 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2021-07-13 19:02:39,573 INFO L430 AbstractCegarLoop]: === Iteration 192 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:39,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:39,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1084643500, now seen corresponding path program 183 times [2021-07-13 19:02:39,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:39,574 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932663181] [2021-07-13 19:02:39,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:39,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:39,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:39,886 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:39,886 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932663181] [2021-07-13 19:02:39,886 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932663181] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:39,886 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:39,886 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:02:39,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151458650] [2021-07-13 19:02:39,886 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:02:39,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:39,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:02:39,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:02:39,887 INFO L87 Difference]: Start difference. First operand 10181 states and 27448 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:40,690 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:02:40,853 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:02:41,030 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:02:41,228 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:02:41,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:41,420 INFO L93 Difference]: Finished difference Result 23242 states and 61275 transitions. [2021-07-13 19:02:41,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:02:41,421 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:02:41,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:41,455 INFO L225 Difference]: With dead ends: 23242 [2021-07-13 19:02:41,455 INFO L226 Difference]: Without dead ends: 23242 [2021-07-13 19:02:41,456 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1337.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:02:41,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23242 states. [2021-07-13 19:02:41,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23242 to 10213. [2021-07-13 19:02:41,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10213 states, 10211 states have (on average 2.6970913720497505) internal successors, (27540), 10212 states have internal predecessors, (27540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:41,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10213 states to 10213 states and 27540 transitions. [2021-07-13 19:02:41,729 INFO L78 Accepts]: Start accepts. Automaton has 10213 states and 27540 transitions. Word has length 114 [2021-07-13 19:02:41,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:41,729 INFO L482 AbstractCegarLoop]: Abstraction has 10213 states and 27540 transitions. [2021-07-13 19:02:41,729 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:41,729 INFO L276 IsEmpty]: Start isEmpty. Operand 10213 states and 27540 transitions. [2021-07-13 19:02:41,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:02:41,741 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:41,741 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:41,742 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2021-07-13 19:02:41,742 INFO L430 AbstractCegarLoop]: === Iteration 193 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:41,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:41,742 INFO L82 PathProgramCache]: Analyzing trace with hash -1000735446, now seen corresponding path program 184 times [2021-07-13 19:02:41,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:41,742 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481914876] [2021-07-13 19:02:41,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:41,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:42,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:42,066 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:42,066 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481914876] [2021-07-13 19:02:42,066 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481914876] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:42,066 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:42,066 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:02:42,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132851758] [2021-07-13 19:02:42,066 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:02:42,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:42,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:02:42,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:02:42,067 INFO L87 Difference]: Start difference. First operand 10213 states and 27540 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:42,846 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:02:43,003 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:02:43,190 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:02:43,381 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:02:43,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:43,563 INFO L93 Difference]: Finished difference Result 24055 states and 63079 transitions. [2021-07-13 19:02:43,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:02:43,563 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:02:43,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:43,598 INFO L225 Difference]: With dead ends: 24055 [2021-07-13 19:02:43,598 INFO L226 Difference]: Without dead ends: 24055 [2021-07-13 19:02:43,598 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1347.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:02:43,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24055 states. [2021-07-13 19:02:43,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24055 to 10197. [2021-07-13 19:02:43,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10197 states, 10195 states have (on average 2.696812162824914) internal successors, (27494), 10196 states have internal predecessors, (27494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:43,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10197 states to 10197 states and 27494 transitions. [2021-07-13 19:02:43,848 INFO L78 Accepts]: Start accepts. Automaton has 10197 states and 27494 transitions. Word has length 114 [2021-07-13 19:02:43,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:43,848 INFO L482 AbstractCegarLoop]: Abstraction has 10197 states and 27494 transitions. [2021-07-13 19:02:43,848 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:43,848 INFO L276 IsEmpty]: Start isEmpty. Operand 10197 states and 27494 transitions. [2021-07-13 19:02:43,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:02:43,860 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:43,860 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:43,860 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2021-07-13 19:02:43,860 INFO L430 AbstractCegarLoop]: === Iteration 194 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:43,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:43,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1274960244, now seen corresponding path program 185 times [2021-07-13 19:02:43,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:43,861 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023159550] [2021-07-13 19:02:43,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:43,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:44,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:44,350 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:44,350 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023159550] [2021-07-13 19:02:44,351 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023159550] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:44,351 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:44,351 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:02:44,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713732635] [2021-07-13 19:02:44,351 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:02:44,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:44,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:02:44,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:02:44,351 INFO L87 Difference]: Start difference. First operand 10197 states and 27494 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:45,150 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:02:45,314 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:02:45,502 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:02:45,698 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:02:45,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:45,891 INFO L93 Difference]: Finished difference Result 23381 states and 61492 transitions. [2021-07-13 19:02:45,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:02:45,892 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:02:45,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:45,929 INFO L225 Difference]: With dead ends: 23381 [2021-07-13 19:02:45,929 INFO L226 Difference]: Without dead ends: 23381 [2021-07-13 19:02:45,930 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1433.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:02:45,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23381 states. [2021-07-13 19:02:46,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23381 to 10213. [2021-07-13 19:02:46,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10213 states, 10211 states have (on average 2.6970913720497505) internal successors, (27540), 10212 states have internal predecessors, (27540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:46,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10213 states to 10213 states and 27540 transitions. [2021-07-13 19:02:46,163 INFO L78 Accepts]: Start accepts. Automaton has 10213 states and 27540 transitions. Word has length 114 [2021-07-13 19:02:46,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:46,163 INFO L482 AbstractCegarLoop]: Abstraction has 10213 states and 27540 transitions. [2021-07-13 19:02:46,163 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:46,163 INFO L276 IsEmpty]: Start isEmpty. Operand 10213 states and 27540 transitions. [2021-07-13 19:02:46,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:02:46,175 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:46,175 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:46,175 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2021-07-13 19:02:46,175 INFO L430 AbstractCegarLoop]: === Iteration 195 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:46,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:46,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1523507224, now seen corresponding path program 186 times [2021-07-13 19:02:46,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:46,175 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613082913] [2021-07-13 19:02:46,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:46,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:46,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:46,480 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:46,480 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613082913] [2021-07-13 19:02:46,480 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613082913] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:46,480 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:46,480 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:02:46,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928396519] [2021-07-13 19:02:46,481 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:02:46,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:46,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:02:46,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:02:46,481 INFO L87 Difference]: Start difference. First operand 10213 states and 27540 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:47,007 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-07-13 19:02:47,282 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:02:47,443 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:02:47,616 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:02:47,808 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:02:47,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:47,976 INFO L93 Difference]: Finished difference Result 20728 states and 54732 transitions. [2021-07-13 19:02:47,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:02:47,976 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:02:47,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:48,005 INFO L225 Difference]: With dead ends: 20728 [2021-07-13 19:02:48,006 INFO L226 Difference]: Without dead ends: 20728 [2021-07-13 19:02:48,006 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1357.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:02:48,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20728 states. [2021-07-13 19:02:48,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20728 to 10149. [2021-07-13 19:02:48,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10149 states, 10147 states have (on average 2.6959692519956637) internal successors, (27356), 10148 states have internal predecessors, (27356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:48,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10149 states to 10149 states and 27356 transitions. [2021-07-13 19:02:48,216 INFO L78 Accepts]: Start accepts. Automaton has 10149 states and 27356 transitions. Word has length 114 [2021-07-13 19:02:48,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:48,216 INFO L482 AbstractCegarLoop]: Abstraction has 10149 states and 27356 transitions. [2021-07-13 19:02:48,216 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:48,216 INFO L276 IsEmpty]: Start isEmpty. Operand 10149 states and 27356 transitions. [2021-07-13 19:02:48,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:02:48,227 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:48,227 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:48,228 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2021-07-13 19:02:48,228 INFO L430 AbstractCegarLoop]: === Iteration 196 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:48,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:48,228 INFO L82 PathProgramCache]: Analyzing trace with hash 121089612, now seen corresponding path program 187 times [2021-07-13 19:02:48,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:48,228 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805663703] [2021-07-13 19:02:48,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:48,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:48,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:48,586 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:48,586 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805663703] [2021-07-13 19:02:48,586 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805663703] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:48,586 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:48,586 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:02:48,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947600571] [2021-07-13 19:02:48,586 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:02:48,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:48,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:02:48,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:02:48,587 INFO L87 Difference]: Start difference. First operand 10149 states and 27356 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:49,379 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:02:49,563 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:02:49,743 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:02:49,989 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:02:50,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:50,166 INFO L93 Difference]: Finished difference Result 20944 states and 55532 transitions. [2021-07-13 19:02:50,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:02:50,167 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:02:50,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:50,200 INFO L225 Difference]: With dead ends: 20944 [2021-07-13 19:02:50,200 INFO L226 Difference]: Without dead ends: 20944 [2021-07-13 19:02:50,200 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1430.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:02:50,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20944 states. [2021-07-13 19:02:50,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20944 to 10213. [2021-07-13 19:02:50,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10213 states, 10211 states have (on average 2.6970913720497505) internal successors, (27540), 10212 states have internal predecessors, (27540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:50,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10213 states to 10213 states and 27540 transitions. [2021-07-13 19:02:50,428 INFO L78 Accepts]: Start accepts. Automaton has 10213 states and 27540 transitions. Word has length 114 [2021-07-13 19:02:50,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:50,428 INFO L482 AbstractCegarLoop]: Abstraction has 10213 states and 27540 transitions. [2021-07-13 19:02:50,428 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:50,428 INFO L276 IsEmpty]: Start isEmpty. Operand 10213 states and 27540 transitions. [2021-07-13 19:02:50,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:02:50,441 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:50,441 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:50,441 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2021-07-13 19:02:50,441 INFO L430 AbstractCegarLoop]: === Iteration 197 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:50,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:50,441 INFO L82 PathProgramCache]: Analyzing trace with hash -1964289334, now seen corresponding path program 188 times [2021-07-13 19:02:50,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:50,441 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633253835] [2021-07-13 19:02:50,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:50,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:50,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:50,815 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:50,815 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633253835] [2021-07-13 19:02:50,815 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633253835] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:50,815 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:50,815 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:02:50,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616483904] [2021-07-13 19:02:50,815 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:02:50,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:50,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:02:50,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:02:50,816 INFO L87 Difference]: Start difference. First operand 10213 states and 27540 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:51,607 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:02:51,787 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:02:51,978 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:02:52,175 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:02:52,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:52,372 INFO L93 Difference]: Finished difference Result 20522 states and 54018 transitions. [2021-07-13 19:02:52,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:02:52,373 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:02:52,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:52,403 INFO L225 Difference]: With dead ends: 20522 [2021-07-13 19:02:52,403 INFO L226 Difference]: Without dead ends: 20522 [2021-07-13 19:02:52,403 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1400.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:02:52,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20522 states. [2021-07-13 19:02:52,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20522 to 10197. [2021-07-13 19:02:52,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10197 states, 10195 states have (on average 2.696812162824914) internal successors, (27494), 10196 states have internal predecessors, (27494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:52,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10197 states to 10197 states and 27494 transitions. [2021-07-13 19:02:52,650 INFO L78 Accepts]: Start accepts. Automaton has 10197 states and 27494 transitions. Word has length 114 [2021-07-13 19:02:52,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:52,650 INFO L482 AbstractCegarLoop]: Abstraction has 10197 states and 27494 transitions. [2021-07-13 19:02:52,650 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:52,650 INFO L276 IsEmpty]: Start isEmpty. Operand 10197 states and 27494 transitions. [2021-07-13 19:02:52,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:02:52,663 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:52,663 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:52,663 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2021-07-13 19:02:52,663 INFO L430 AbstractCegarLoop]: === Iteration 198 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:52,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:52,663 INFO L82 PathProgramCache]: Analyzing trace with hash 691564588, now seen corresponding path program 189 times [2021-07-13 19:02:52,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:52,664 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136991007] [2021-07-13 19:02:52,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:52,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:53,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:53,003 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:53,003 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136991007] [2021-07-13 19:02:53,003 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136991007] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:53,003 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:53,003 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:02:53,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801842817] [2021-07-13 19:02:53,004 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:02:53,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:53,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:02:53,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:02:53,004 INFO L87 Difference]: Start difference. First operand 10197 states and 27494 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:53,797 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:02:53,950 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:02:54,148 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:02:54,352 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:02:54,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:54,515 INFO L93 Difference]: Finished difference Result 20504 states and 54072 transitions. [2021-07-13 19:02:54,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:02:54,516 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:02:54,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:54,544 INFO L225 Difference]: With dead ends: 20504 [2021-07-13 19:02:54,544 INFO L226 Difference]: Without dead ends: 20504 [2021-07-13 19:02:54,545 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1349.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:02:54,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20504 states. [2021-07-13 19:02:54,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20504 to 10165. [2021-07-13 19:02:54,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10165 states, 10163 states have (on average 2.6962511069566073) internal successors, (27402), 10164 states have internal predecessors, (27402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:54,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10165 states to 10165 states and 27402 transitions. [2021-07-13 19:02:54,757 INFO L78 Accepts]: Start accepts. Automaton has 10165 states and 27402 transitions. Word has length 114 [2021-07-13 19:02:54,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:54,757 INFO L482 AbstractCegarLoop]: Abstraction has 10165 states and 27402 transitions. [2021-07-13 19:02:54,758 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:54,758 INFO L276 IsEmpty]: Start isEmpty. Operand 10165 states and 27402 transitions. [2021-07-13 19:02:54,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:02:54,769 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:54,769 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:54,769 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2021-07-13 19:02:54,769 INFO L430 AbstractCegarLoop]: === Iteration 199 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:54,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:54,770 INFO L82 PathProgramCache]: Analyzing trace with hash 312747274, now seen corresponding path program 190 times [2021-07-13 19:02:54,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:54,770 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091828720] [2021-07-13 19:02:54,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:54,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:55,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:55,171 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:55,171 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091828720] [2021-07-13 19:02:55,171 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091828720] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:55,171 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:55,171 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:02:55,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387639509] [2021-07-13 19:02:55,172 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:02:55,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:55,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:02:55,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:02:55,172 INFO L87 Difference]: Start difference. First operand 10165 states and 27402 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:55,942 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-13 19:02:56,092 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:02:56,287 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:02:56,486 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:02:56,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:56,631 INFO L93 Difference]: Finished difference Result 17230 states and 45649 transitions. [2021-07-13 19:02:56,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:02:56,631 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:02:56,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:56,656 INFO L225 Difference]: With dead ends: 17230 [2021-07-13 19:02:56,656 INFO L226 Difference]: Without dead ends: 17230 [2021-07-13 19:02:56,656 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1403.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:02:56,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17230 states. [2021-07-13 19:02:56,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17230 to 10109. [2021-07-13 19:02:56,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 10107 states have (on average 2.694963886415356) internal successors, (27238), 10108 states have internal predecessors, (27238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:56,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 27238 transitions. [2021-07-13 19:02:56,840 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 27238 transitions. Word has length 114 [2021-07-13 19:02:56,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:56,840 INFO L482 AbstractCegarLoop]: Abstraction has 10109 states and 27238 transitions. [2021-07-13 19:02:56,840 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:56,840 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 27238 transitions. [2021-07-13 19:02:56,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:02:56,851 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:56,852 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:56,852 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2021-07-13 19:02:56,852 INFO L430 AbstractCegarLoop]: === Iteration 200 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:56,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:56,852 INFO L82 PathProgramCache]: Analyzing trace with hash -1916635700, now seen corresponding path program 191 times [2021-07-13 19:02:56,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:56,852 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668275303] [2021-07-13 19:02:56,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:56,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:57,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:57,173 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:57,173 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668275303] [2021-07-13 19:02:57,173 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668275303] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:57,173 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:57,173 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:02:57,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883789577] [2021-07-13 19:02:57,174 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:02:57,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:57,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:02:57,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:02:57,174 INFO L87 Difference]: Start difference. First operand 10109 states and 27238 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:57,944 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:02:58,147 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:02:58,320 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:02:58,518 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:02:58,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:58,689 INFO L93 Difference]: Finished difference Result 22065 states and 58759 transitions. [2021-07-13 19:02:58,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:02:58,689 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:02:58,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:58,724 INFO L225 Difference]: With dead ends: 22065 [2021-07-13 19:02:58,724 INFO L226 Difference]: Without dead ends: 22065 [2021-07-13 19:02:58,724 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1377.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:02:58,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22065 states. [2021-07-13 19:02:58,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22065 to 10205. [2021-07-13 19:02:58,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10205 states, 10203 states have (on average 2.6966578457316475) internal successors, (27514), 10204 states have internal predecessors, (27514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:58,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10205 states to 10205 states and 27514 transitions. [2021-07-13 19:02:58,948 INFO L78 Accepts]: Start accepts. Automaton has 10205 states and 27514 transitions. Word has length 114 [2021-07-13 19:02:58,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:58,948 INFO L482 AbstractCegarLoop]: Abstraction has 10205 states and 27514 transitions. [2021-07-13 19:02:58,948 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:58,948 INFO L276 IsEmpty]: Start isEmpty. Operand 10205 states and 27514 transitions. [2021-07-13 19:02:58,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:02:58,960 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:58,960 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:58,960 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2021-07-13 19:02:58,960 INFO L430 AbstractCegarLoop]: === Iteration 201 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:58,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:58,960 INFO L82 PathProgramCache]: Analyzing trace with hash 292952650, now seen corresponding path program 192 times [2021-07-13 19:02:58,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:58,961 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444448541] [2021-07-13 19:02:58,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:58,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:59,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:59,285 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:59,285 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444448541] [2021-07-13 19:02:59,285 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444448541] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:59,285 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:59,285 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:02:59,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110964272] [2021-07-13 19:02:59,285 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:02:59,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:59,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:02:59,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:02:59,286 INFO L87 Difference]: Start difference. First operand 10205 states and 27514 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:00,070 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:03:00,246 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:03:00,438 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:03:00,635 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:03:00,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:00,826 INFO L93 Difference]: Finished difference Result 21643 states and 57245 transitions. [2021-07-13 19:03:00,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:03:00,826 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:03:00,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:00,915 INFO L225 Difference]: With dead ends: 21643 [2021-07-13 19:03:00,915 INFO L226 Difference]: Without dead ends: 21643 [2021-07-13 19:03:00,916 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1352.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:03:00,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21643 states. [2021-07-13 19:03:01,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21643 to 10189. [2021-07-13 19:03:01,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10189 states, 10187 states have (on average 2.6963777363306174) internal successors, (27468), 10188 states have internal predecessors, (27468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:01,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10189 states to 10189 states and 27468 transitions. [2021-07-13 19:03:01,107 INFO L78 Accepts]: Start accepts. Automaton has 10189 states and 27468 transitions. Word has length 114 [2021-07-13 19:03:01,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:01,107 INFO L482 AbstractCegarLoop]: Abstraction has 10189 states and 27468 transitions. [2021-07-13 19:03:01,107 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:01,107 INFO L276 IsEmpty]: Start isEmpty. Operand 10189 states and 27468 transitions. [2021-07-13 19:03:01,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:03:01,119 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:01,119 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:01,119 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2021-07-13 19:03:01,119 INFO L430 AbstractCegarLoop]: === Iteration 202 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:01,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:01,120 INFO L82 PathProgramCache]: Analyzing trace with hash -1346160724, now seen corresponding path program 193 times [2021-07-13 19:03:01,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:01,120 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984115191] [2021-07-13 19:03:01,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:01,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:01,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:01,449 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:01,449 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984115191] [2021-07-13 19:03:01,450 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984115191] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:01,450 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:01,450 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:03:01,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430244966] [2021-07-13 19:03:01,450 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:03:01,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:01,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:03:01,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:03:01,450 INFO L87 Difference]: Start difference. First operand 10189 states and 27468 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:02,240 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:03:02,394 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:03:02,588 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:03:02,792 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:03:02,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:02,973 INFO L93 Difference]: Finished difference Result 19121 states and 50738 transitions. [2021-07-13 19:03:02,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:03:02,974 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:03:02,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:03,004 INFO L225 Difference]: With dead ends: 19121 [2021-07-13 19:03:03,005 INFO L226 Difference]: Without dead ends: 19121 [2021-07-13 19:03:03,005 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1338.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:03:03,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19121 states. [2021-07-13 19:03:03,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19121 to 10157. [2021-07-13 19:03:03,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10157 states, 10155 states have (on average 2.695814869522403) internal successors, (27376), 10156 states have internal predecessors, (27376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:03,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10157 states to 10157 states and 27376 transitions. [2021-07-13 19:03:03,208 INFO L78 Accepts]: Start accepts. Automaton has 10157 states and 27376 transitions. Word has length 114 [2021-07-13 19:03:03,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:03,209 INFO L482 AbstractCegarLoop]: Abstraction has 10157 states and 27376 transitions. [2021-07-13 19:03:03,209 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:03,209 INFO L276 IsEmpty]: Start isEmpty. Operand 10157 states and 27376 transitions. [2021-07-13 19:03:03,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:03:03,220 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:03,220 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:03,220 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2021-07-13 19:03:03,220 INFO L430 AbstractCegarLoop]: === Iteration 203 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:03,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:03,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1047760050, now seen corresponding path program 194 times [2021-07-13 19:03:03,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:03,221 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274105668] [2021-07-13 19:03:03,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:03,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:03,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:03,590 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:03,590 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274105668] [2021-07-13 19:03:03,590 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274105668] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:03,590 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:03,590 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:03:03,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376873343] [2021-07-13 19:03:03,591 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:03:03,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:03,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:03:03,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:03:03,591 INFO L87 Difference]: Start difference. First operand 10157 states and 27376 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:04,382 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:03:04,541 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:03:04,718 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:03:04,914 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:03:05,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:05,090 INFO L93 Difference]: Finished difference Result 18931 states and 50224 transitions. [2021-07-13 19:03:05,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:03:05,091 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:03:05,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:05,119 INFO L225 Difference]: With dead ends: 18931 [2021-07-13 19:03:05,119 INFO L226 Difference]: Without dead ends: 18931 [2021-07-13 19:03:05,119 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1325.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:03:05,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18931 states. [2021-07-13 19:03:05,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18931 to 10189. [2021-07-13 19:03:05,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10189 states, 10187 states have (on average 2.6963777363306174) internal successors, (27468), 10188 states have internal predecessors, (27468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:05,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10189 states to 10189 states and 27468 transitions. [2021-07-13 19:03:05,313 INFO L78 Accepts]: Start accepts. Automaton has 10189 states and 27468 transitions. Word has length 114 [2021-07-13 19:03:05,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:05,313 INFO L482 AbstractCegarLoop]: Abstraction has 10189 states and 27468 transitions. [2021-07-13 19:03:05,313 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:05,313 INFO L276 IsEmpty]: Start isEmpty. Operand 10189 states and 27468 transitions. [2021-07-13 19:03:05,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:03:05,328 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:05,329 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:05,329 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2021-07-13 19:03:05,329 INFO L430 AbstractCegarLoop]: === Iteration 204 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:05,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:05,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1161828300, now seen corresponding path program 195 times [2021-07-13 19:03:05,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:05,329 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564521377] [2021-07-13 19:03:05,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:05,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:05,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:05,668 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:05,668 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564521377] [2021-07-13 19:03:05,668 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564521377] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:05,668 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:05,668 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:03:05,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641621660] [2021-07-13 19:03:05,668 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:03:05,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:05,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:03:05,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:03:05,669 INFO L87 Difference]: Start difference. First operand 10189 states and 27468 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:06,318 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-13 19:03:06,469 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:03:06,624 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:03:06,811 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:03:06,999 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:03:07,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:07,160 INFO L93 Difference]: Finished difference Result 19744 states and 52028 transitions. [2021-07-13 19:03:07,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:03:07,161 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:03:07,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:07,189 INFO L225 Difference]: With dead ends: 19744 [2021-07-13 19:03:07,189 INFO L226 Difference]: Without dead ends: 19744 [2021-07-13 19:03:07,189 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1368.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:03:07,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19744 states. [2021-07-13 19:03:07,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19744 to 10173. [2021-07-13 19:03:07,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10173 states, 10171 states have (on average 2.6960967456493954) internal successors, (27422), 10172 states have internal predecessors, (27422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:07,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10173 states to 10173 states and 27422 transitions. [2021-07-13 19:03:07,385 INFO L78 Accepts]: Start accepts. Automaton has 10173 states and 27422 transitions. Word has length 114 [2021-07-13 19:03:07,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:07,385 INFO L482 AbstractCegarLoop]: Abstraction has 10173 states and 27422 transitions. [2021-07-13 19:03:07,385 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:07,385 INFO L276 IsEmpty]: Start isEmpty. Operand 10173 states and 27422 transitions. [2021-07-13 19:03:07,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:03:07,396 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:07,396 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:07,397 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2021-07-13 19:03:07,397 INFO L430 AbstractCegarLoop]: === Iteration 205 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:07,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:07,397 INFO L82 PathProgramCache]: Analyzing trace with hash 887603502, now seen corresponding path program 196 times [2021-07-13 19:03:07,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:07,397 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856514747] [2021-07-13 19:03:07,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:07,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:07,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:07,709 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:07,709 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856514747] [2021-07-13 19:03:07,709 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856514747] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:07,709 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:07,709 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:03:07,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604015552] [2021-07-13 19:03:07,709 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:03:07,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:07,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:03:07,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:03:07,710 INFO L87 Difference]: Start difference. First operand 10173 states and 27422 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:08,479 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:03:08,635 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:03:08,819 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:03:09,010 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:03:09,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:09,199 INFO L93 Difference]: Finished difference Result 19070 states and 50441 transitions. [2021-07-13 19:03:09,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:03:09,200 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:03:09,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:09,226 INFO L225 Difference]: With dead ends: 19070 [2021-07-13 19:03:09,226 INFO L226 Difference]: Without dead ends: 19070 [2021-07-13 19:03:09,226 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1340.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:03:09,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19070 states. [2021-07-13 19:03:09,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19070 to 10189. [2021-07-13 19:03:09,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10189 states, 10187 states have (on average 2.6963777363306174) internal successors, (27468), 10188 states have internal predecessors, (27468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:09,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10189 states to 10189 states and 27468 transitions. [2021-07-13 19:03:09,417 INFO L78 Accepts]: Start accepts. Automaton has 10189 states and 27468 transitions. Word has length 114 [2021-07-13 19:03:09,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:09,417 INFO L482 AbstractCegarLoop]: Abstraction has 10189 states and 27468 transitions. [2021-07-13 19:03:09,417 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:09,417 INFO L276 IsEmpty]: Start isEmpty. Operand 10189 states and 27468 transitions. [2021-07-13 19:03:09,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:03:09,429 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:09,429 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:09,429 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2021-07-13 19:03:09,429 INFO L430 AbstractCegarLoop]: === Iteration 206 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:09,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:09,429 INFO L82 PathProgramCache]: Analyzing trace with hash 639056522, now seen corresponding path program 197 times [2021-07-13 19:03:09,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:09,430 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318550622] [2021-07-13 19:03:09,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:09,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:09,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:09,767 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:09,767 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318550622] [2021-07-13 19:03:09,767 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318550622] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:09,767 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:09,767 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:03:09,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389505638] [2021-07-13 19:03:09,767 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:03:09,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:09,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:03:09,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:03:09,768 INFO L87 Difference]: Start difference. First operand 10189 states and 27468 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:10,536 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:03:10,695 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:03:10,870 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:03:11,063 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:03:11,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:11,211 INFO L93 Difference]: Finished difference Result 16417 states and 43681 transitions. [2021-07-13 19:03:11,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:03:11,211 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:03:11,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:11,235 INFO L225 Difference]: With dead ends: 16417 [2021-07-13 19:03:11,235 INFO L226 Difference]: Without dead ends: 16417 [2021-07-13 19:03:11,235 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1337.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:03:11,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16417 states. [2021-07-13 19:03:11,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16417 to 10125. [2021-07-13 19:03:11,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10125 states, 10123 states have (on average 2.6952484441371136) internal successors, (27284), 10124 states have internal predecessors, (27284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:11,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10125 states to 10125 states and 27284 transitions. [2021-07-13 19:03:11,408 INFO L78 Accepts]: Start accepts. Automaton has 10125 states and 27284 transitions. Word has length 114 [2021-07-13 19:03:11,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:11,408 INFO L482 AbstractCegarLoop]: Abstraction has 10125 states and 27284 transitions. [2021-07-13 19:03:11,408 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:11,409 INFO L276 IsEmpty]: Start isEmpty. Operand 10125 states and 27284 transitions. [2021-07-13 19:03:11,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:03:11,420 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:11,420 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:11,420 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2021-07-13 19:03:11,420 INFO L430 AbstractCegarLoop]: === Iteration 207 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:11,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:11,421 INFO L82 PathProgramCache]: Analyzing trace with hash -2011313938, now seen corresponding path program 198 times [2021-07-13 19:03:11,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:11,421 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550541559] [2021-07-13 19:03:11,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:11,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:11,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:11,854 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:11,854 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550541559] [2021-07-13 19:03:11,854 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550541559] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:11,854 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:11,854 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:03:11,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760278760] [2021-07-13 19:03:11,854 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:03:11,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:11,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:03:11,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:03:11,855 INFO L87 Difference]: Start difference. First operand 10125 states and 27284 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:12,643 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:03:12,826 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:03:13,007 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:03:13,209 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:03:13,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:13,397 INFO L93 Difference]: Finished difference Result 21366 states and 56662 transitions. [2021-07-13 19:03:13,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:03:13,397 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:03:13,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:13,431 INFO L225 Difference]: With dead ends: 21366 [2021-07-13 19:03:13,431 INFO L226 Difference]: Without dead ends: 21366 [2021-07-13 19:03:13,431 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1449.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:03:13,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21366 states. [2021-07-13 19:03:13,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21366 to 10189. [2021-07-13 19:03:13,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10189 states, 10187 states have (on average 2.6963777363306174) internal successors, (27468), 10188 states have internal predecessors, (27468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:13,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10189 states to 10189 states and 27468 transitions. [2021-07-13 19:03:13,646 INFO L78 Accepts]: Start accepts. Automaton has 10189 states and 27468 transitions. Word has length 114 [2021-07-13 19:03:13,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:13,647 INFO L482 AbstractCegarLoop]: Abstraction has 10189 states and 27468 transitions. [2021-07-13 19:03:13,647 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:13,647 INFO L276 IsEmpty]: Start isEmpty. Operand 10189 states and 27468 transitions. [2021-07-13 19:03:13,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:03:13,658 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:13,658 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:13,658 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2021-07-13 19:03:13,658 INFO L430 AbstractCegarLoop]: === Iteration 208 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:13,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:13,659 INFO L82 PathProgramCache]: Analyzing trace with hash 198274412, now seen corresponding path program 199 times [2021-07-13 19:03:13,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:13,659 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698338957] [2021-07-13 19:03:13,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:13,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:13,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:14,000 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:14,000 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698338957] [2021-07-13 19:03:14,000 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698338957] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:14,000 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:14,000 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:03:14,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852236809] [2021-07-13 19:03:14,000 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:03:14,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:14,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:03:14,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:03:14,001 INFO L87 Difference]: Start difference. First operand 10189 states and 27468 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:14,530 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-07-13 19:03:14,797 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:03:14,973 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:03:15,164 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:03:15,358 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:03:15,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:15,525 INFO L93 Difference]: Finished difference Result 20944 states and 55148 transitions. [2021-07-13 19:03:15,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:03:15,526 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:03:15,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:15,556 INFO L225 Difference]: With dead ends: 20944 [2021-07-13 19:03:15,556 INFO L226 Difference]: Without dead ends: 20944 [2021-07-13 19:03:15,557 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1402.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:03:15,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20944 states. [2021-07-13 19:03:15,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20944 to 10173. [2021-07-13 19:03:15,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10173 states, 10171 states have (on average 2.6960967456493954) internal successors, (27422), 10172 states have internal predecessors, (27422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:15,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10173 states to 10173 states and 27422 transitions. [2021-07-13 19:03:15,792 INFO L78 Accepts]: Start accepts. Automaton has 10173 states and 27422 transitions. Word has length 114 [2021-07-13 19:03:15,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:15,792 INFO L482 AbstractCegarLoop]: Abstraction has 10173 states and 27422 transitions. [2021-07-13 19:03:15,792 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:15,792 INFO L276 IsEmpty]: Start isEmpty. Operand 10173 states and 27422 transitions. [2021-07-13 19:03:15,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:03:15,803 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:15,803 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:15,803 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2021-07-13 19:03:15,804 INFO L430 AbstractCegarLoop]: === Iteration 209 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:15,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:15,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1440838962, now seen corresponding path program 200 times [2021-07-13 19:03:15,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:15,804 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111140786] [2021-07-13 19:03:15,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:15,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:16,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:16,140 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:16,140 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111140786] [2021-07-13 19:03:16,140 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111140786] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:16,140 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:16,140 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:03:16,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036196634] [2021-07-13 19:03:16,141 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:03:16,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:16,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:03:16,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:03:16,141 INFO L87 Difference]: Start difference. First operand 10173 states and 27422 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:16,910 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:03:17,083 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:03:17,280 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:03:17,512 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:03:17,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:17,674 INFO L93 Difference]: Finished difference Result 20926 states and 55202 transitions. [2021-07-13 19:03:17,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:03:17,674 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:03:17,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:17,703 INFO L225 Difference]: With dead ends: 20926 [2021-07-13 19:03:17,704 INFO L226 Difference]: Without dead ends: 20926 [2021-07-13 19:03:17,704 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1397.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:03:17,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20926 states. [2021-07-13 19:03:17,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20926 to 10141. [2021-07-13 19:03:17,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.695532103757767) internal successors, (27330), 10140 states have internal predecessors, (27330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:17,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27330 transitions. [2021-07-13 19:03:17,907 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27330 transitions. Word has length 114 [2021-07-13 19:03:17,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:17,907 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27330 transitions. [2021-07-13 19:03:17,907 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:17,907 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27330 transitions. [2021-07-13 19:03:17,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:03:17,918 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:17,918 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:17,919 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2021-07-13 19:03:17,919 INFO L430 AbstractCegarLoop]: === Iteration 210 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:17,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:17,919 INFO L82 PathProgramCache]: Analyzing trace with hash -1819656276, now seen corresponding path program 201 times [2021-07-13 19:03:17,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:17,919 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610703465] [2021-07-13 19:03:17,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:17,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:18,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:18,260 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:18,260 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610703465] [2021-07-13 19:03:18,260 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610703465] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:18,260 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:18,260 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:03:18,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005584454] [2021-07-13 19:03:18,260 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:03:18,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:18,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:03:18,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:03:18,261 INFO L87 Difference]: Start difference. First operand 10141 states and 27330 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:18,901 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-07-13 19:03:19,081 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-13 19:03:19,228 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-13 19:03:19,379 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:03:19,581 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:03:19,781 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:03:19,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:19,942 INFO L93 Difference]: Finished difference Result 17652 states and 46779 transitions. [2021-07-13 19:03:19,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:03:19,942 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:03:19,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:19,967 INFO L225 Difference]: With dead ends: 17652 [2021-07-13 19:03:19,967 INFO L226 Difference]: Without dead ends: 17652 [2021-07-13 19:03:19,968 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1490.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:03:19,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17652 states. [2021-07-13 19:03:20,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17652 to 10109. [2021-07-13 19:03:20,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 10107 states have (on average 2.694963886415356) internal successors, (27238), 10108 states have internal predecessors, (27238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:20,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 27238 transitions. [2021-07-13 19:03:20,230 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 27238 transitions. Word has length 114 [2021-07-13 19:03:20,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:20,230 INFO L482 AbstractCegarLoop]: Abstraction has 10109 states and 27238 transitions. [2021-07-13 19:03:20,230 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:20,230 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 27238 transitions. [2021-07-13 19:03:20,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:03:20,242 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:20,242 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:20,242 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2021-07-13 19:03:20,242 INFO L430 AbstractCegarLoop]: === Iteration 211 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:20,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:20,243 INFO L82 PathProgramCache]: Analyzing trace with hash 1877751050, now seen corresponding path program 202 times [2021-07-13 19:03:20,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:20,243 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383310856] [2021-07-13 19:03:20,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:20,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:20,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:20,684 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:20,684 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383310856] [2021-07-13 19:03:20,684 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383310856] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:20,684 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:20,684 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:03:20,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539186279] [2021-07-13 19:03:20,684 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:03:20,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:20,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:03:20,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:03:20,685 INFO L87 Difference]: Start difference. First operand 10109 states and 27238 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:21,473 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:03:21,653 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:03:21,835 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:03:22,036 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:03:22,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:22,212 INFO L93 Difference]: Finished difference Result 16617 states and 44435 transitions. [2021-07-13 19:03:22,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:03:22,213 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:03:22,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:22,238 INFO L225 Difference]: With dead ends: 16617 [2021-07-13 19:03:22,239 INFO L226 Difference]: Without dead ends: 16617 [2021-07-13 19:03:22,239 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1440.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:03:22,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16617 states. [2021-07-13 19:03:22,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16617 to 10173. [2021-07-13 19:03:22,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10173 states, 10171 states have (on average 2.6960967456493954) internal successors, (27422), 10172 states have internal predecessors, (27422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:22,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10173 states to 10173 states and 27422 transitions. [2021-07-13 19:03:22,424 INFO L78 Accepts]: Start accepts. Automaton has 10173 states and 27422 transitions. Word has length 114 [2021-07-13 19:03:22,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:22,424 INFO L482 AbstractCegarLoop]: Abstraction has 10173 states and 27422 transitions. [2021-07-13 19:03:22,425 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:22,425 INFO L276 IsEmpty]: Start isEmpty. Operand 10173 states and 27422 transitions. [2021-07-13 19:03:22,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:03:22,436 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:22,437 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:22,437 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2021-07-13 19:03:22,437 INFO L430 AbstractCegarLoop]: === Iteration 212 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:22,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:22,437 INFO L82 PathProgramCache]: Analyzing trace with hash -207627896, now seen corresponding path program 203 times [2021-07-13 19:03:22,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:22,437 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025818960] [2021-07-13 19:03:22,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:22,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:22,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:22,886 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:22,886 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025818960] [2021-07-13 19:03:22,887 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025818960] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:22,887 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:22,887 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:03:22,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078920629] [2021-07-13 19:03:22,887 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:03:22,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:22,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:03:22,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:03:22,887 INFO L87 Difference]: Start difference. First operand 10173 states and 27422 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:23,683 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:03:23,856 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:03:24,045 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:03:24,236 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:03:24,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:24,381 INFO L93 Difference]: Finished difference Result 16195 states and 42921 transitions. [2021-07-13 19:03:24,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:03:24,382 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:03:24,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:24,404 INFO L225 Difference]: With dead ends: 16195 [2021-07-13 19:03:24,404 INFO L226 Difference]: Without dead ends: 16195 [2021-07-13 19:03:24,404 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1483.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:03:24,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16195 states. [2021-07-13 19:03:24,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16195 to 10157. [2021-07-13 19:03:24,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10157 states, 10155 states have (on average 2.695814869522403) internal successors, (27376), 10156 states have internal predecessors, (27376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:24,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10157 states to 10157 states and 27376 transitions. [2021-07-13 19:03:24,571 INFO L78 Accepts]: Start accepts. Automaton has 10157 states and 27376 transitions. Word has length 114 [2021-07-13 19:03:24,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:24,571 INFO L482 AbstractCegarLoop]: Abstraction has 10157 states and 27376 transitions. [2021-07-13 19:03:24,571 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:24,571 INFO L276 IsEmpty]: Start isEmpty. Operand 10157 states and 27376 transitions. [2021-07-13 19:03:24,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:03:24,582 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:24,583 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:24,583 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2021-07-13 19:03:24,583 INFO L430 AbstractCegarLoop]: === Iteration 213 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:24,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:24,583 INFO L82 PathProgramCache]: Analyzing trace with hash -1846741270, now seen corresponding path program 204 times [2021-07-13 19:03:24,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:24,583 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301273587] [2021-07-13 19:03:24,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:24,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:24,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:24,936 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:24,936 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301273587] [2021-07-13 19:03:24,936 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301273587] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:24,936 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:24,936 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:03:24,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409381945] [2021-07-13 19:03:24,936 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:03:24,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:24,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:03:24,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:03:24,937 INFO L87 Difference]: Start difference. First operand 10157 states and 27376 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:25,714 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:03:25,866 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:03:26,061 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:03:26,292 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:03:26,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:26,438 INFO L93 Difference]: Finished difference Result 16177 states and 42975 transitions. [2021-07-13 19:03:26,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:03:26,439 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:03:26,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:26,463 INFO L225 Difference]: With dead ends: 16177 [2021-07-13 19:03:26,463 INFO L226 Difference]: Without dead ends: 16177 [2021-07-13 19:03:26,463 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1400.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:03:26,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16177 states. [2021-07-13 19:03:26,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16177 to 10125. [2021-07-13 19:03:26,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10125 states, 10123 states have (on average 2.6952484441371136) internal successors, (27284), 10124 states have internal predecessors, (27284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:26,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10125 states to 10125 states and 27284 transitions. [2021-07-13 19:03:26,637 INFO L78 Accepts]: Start accepts. Automaton has 10125 states and 27284 transitions. Word has length 114 [2021-07-13 19:03:26,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:26,637 INFO L482 AbstractCegarLoop]: Abstraction has 10125 states and 27284 transitions. [2021-07-13 19:03:26,637 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:26,637 INFO L276 IsEmpty]: Start isEmpty. Operand 10125 states and 27284 transitions. [2021-07-13 19:03:26,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:03:26,649 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:26,649 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:26,649 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2021-07-13 19:03:26,649 INFO L430 AbstractCegarLoop]: === Iteration 214 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:26,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:26,649 INFO L82 PathProgramCache]: Analyzing trace with hash 2069408712, now seen corresponding path program 205 times [2021-07-13 19:03:26,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:26,650 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337113103] [2021-07-13 19:03:26,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:26,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:27,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:27,004 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:27,004 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337113103] [2021-07-13 19:03:27,004 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337113103] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:27,004 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:27,004 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:03:27,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675664325] [2021-07-13 19:03:27,004 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:03:27,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:27,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:03:27,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:03:27,005 INFO L87 Difference]: Start difference. First operand 10125 states and 27284 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:27,793 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-13 19:03:27,944 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:03:28,144 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:03:28,348 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:03:28,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:28,515 INFO L93 Difference]: Finished difference Result 16433 states and 43723 transitions. [2021-07-13 19:03:28,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:03:28,515 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:03:28,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:28,540 INFO L225 Difference]: With dead ends: 16433 [2021-07-13 19:03:28,540 INFO L226 Difference]: Without dead ends: 16433 [2021-07-13 19:03:28,540 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1359.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:03:28,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16433 states. [2021-07-13 19:03:28,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16433 to 10109. [2021-07-13 19:03:28,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 10107 states have (on average 2.694963886415356) internal successors, (27238), 10108 states have internal predecessors, (27238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:28,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 27238 transitions. [2021-07-13 19:03:28,728 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 27238 transitions. Word has length 114 [2021-07-13 19:03:28,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:28,728 INFO L482 AbstractCegarLoop]: Abstraction has 10109 states and 27238 transitions. [2021-07-13 19:03:28,728 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:28,728 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 27238 transitions. [2021-07-13 19:03:28,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:03:28,796 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:28,797 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:28,797 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2021-07-13 19:03:28,797 INFO L430 AbstractCegarLoop]: === Iteration 215 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:28,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:28,797 INFO L82 PathProgramCache]: Analyzing trace with hash -1885314226, now seen corresponding path program 206 times [2021-07-13 19:03:28,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:28,797 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404996001] [2021-07-13 19:03:28,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:28,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:29,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:29,160 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:29,161 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404996001] [2021-07-13 19:03:29,161 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404996001] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:29,161 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:29,161 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:03:29,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138736294] [2021-07-13 19:03:29,161 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:03:29,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:29,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:03:29,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:03:29,161 INFO L87 Difference]: Start difference. First operand 10109 states and 27238 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:29,937 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-13 19:03:30,089 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:03:30,286 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:03:30,486 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:03:30,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:30,642 INFO L93 Difference]: Finished difference Result 13188 states and 35239 transitions. [2021-07-13 19:03:30,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:03:30,643 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:03:30,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:30,661 INFO L225 Difference]: With dead ends: 13188 [2021-07-13 19:03:30,662 INFO L226 Difference]: Without dead ends: 13188 [2021-07-13 19:03:30,662 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1352.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:03:30,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13188 states. [2021-07-13 19:03:30,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13188 to 9965. [2021-07-13 19:03:30,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9965 states, 9963 states have (on average 2.6917595101876945) internal successors, (26818), 9964 states have internal predecessors, (26818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:30,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9965 states to 9965 states and 26818 transitions. [2021-07-13 19:03:30,809 INFO L78 Accepts]: Start accepts. Automaton has 9965 states and 26818 transitions. Word has length 114 [2021-07-13 19:03:30,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:30,810 INFO L482 AbstractCegarLoop]: Abstraction has 9965 states and 26818 transitions. [2021-07-13 19:03:30,810 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:30,810 INFO L276 IsEmpty]: Start isEmpty. Operand 9965 states and 26818 transitions. [2021-07-13 19:03:30,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:03:30,821 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:30,821 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:30,821 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2021-07-13 19:03:30,821 INFO L430 AbstractCegarLoop]: === Iteration 216 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:30,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:30,822 INFO L82 PathProgramCache]: Analyzing trace with hash 491904332, now seen corresponding path program 207 times [2021-07-13 19:03:30,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:30,822 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233390565] [2021-07-13 19:03:30,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:30,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:31,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:31,143 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:31,143 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233390565] [2021-07-13 19:03:31,143 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233390565] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:31,143 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:31,143 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:03:31,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933337640] [2021-07-13 19:03:31,144 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:03:31,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:31,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:03:31,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:03:31,144 INFO L87 Difference]: Start difference. First operand 9965 states and 26818 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:31,666 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-07-13 19:03:31,949 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:03:32,125 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:03:32,300 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:03:32,499 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:03:32,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:32,685 INFO L93 Difference]: Finished difference Result 27724 states and 73540 transitions. [2021-07-13 19:03:32,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:03:32,686 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:03:32,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:32,728 INFO L225 Difference]: With dead ends: 27724 [2021-07-13 19:03:32,728 INFO L226 Difference]: Without dead ends: 27724 [2021-07-13 19:03:32,728 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1371.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:03:32,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27724 states. [2021-07-13 19:03:32,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27724 to 10157. [2021-07-13 19:03:32,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10157 states, 10155 states have (on average 2.6952240275726242) internal successors, (27370), 10156 states have internal predecessors, (27370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:32,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10157 states to 10157 states and 27370 transitions. [2021-07-13 19:03:32,992 INFO L78 Accepts]: Start accepts. Automaton has 10157 states and 27370 transitions. Word has length 114 [2021-07-13 19:03:32,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:32,992 INFO L482 AbstractCegarLoop]: Abstraction has 10157 states and 27370 transitions. [2021-07-13 19:03:32,992 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:32,992 INFO L276 IsEmpty]: Start isEmpty. Operand 10157 states and 27370 transitions. [2021-07-13 19:03:33,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:03:33,003 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:33,003 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:33,004 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2021-07-13 19:03:33,004 INFO L430 AbstractCegarLoop]: === Iteration 217 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:33,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:33,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1593474614, now seen corresponding path program 208 times [2021-07-13 19:03:33,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:33,004 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864787668] [2021-07-13 19:03:33,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:33,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:33,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:33,328 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:33,328 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864787668] [2021-07-13 19:03:33,328 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864787668] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:33,328 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:33,328 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:03:33,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772410024] [2021-07-13 19:03:33,329 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:03:33,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:33,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:03:33,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:03:33,329 INFO L87 Difference]: Start difference. First operand 10157 states and 27370 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:34,126 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:03:34,307 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:03:34,529 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:03:34,733 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:03:34,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:34,939 INFO L93 Difference]: Finished difference Result 27302 states and 72026 transitions. [2021-07-13 19:03:34,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:03:34,939 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:03:34,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:34,982 INFO L225 Difference]: With dead ends: 27302 [2021-07-13 19:03:34,983 INFO L226 Difference]: Without dead ends: 27302 [2021-07-13 19:03:34,983 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1390.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:03:35,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27302 states. [2021-07-13 19:03:35,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27302 to 10141. [2021-07-13 19:03:35,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:35,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-07-13 19:03:35,241 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-07-13 19:03:35,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:35,242 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-07-13 19:03:35,242 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:35,242 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-07-13 19:03:35,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:03:35,253 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:35,253 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:35,253 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2021-07-13 19:03:35,253 INFO L430 AbstractCegarLoop]: === Iteration 218 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:35,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:35,254 INFO L82 PathProgramCache]: Analyzing trace with hash 1062379308, now seen corresponding path program 209 times [2021-07-13 19:03:35,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:35,254 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924968888] [2021-07-13 19:03:35,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:35,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:35,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:35,584 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:35,584 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924968888] [2021-07-13 19:03:35,584 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924968888] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:35,584 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:35,584 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:03:35,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180390166] [2021-07-13 19:03:35,585 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:03:35,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:35,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:03:35,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:03:35,585 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:36,377 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:03:36,531 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:03:36,726 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:03:36,930 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:03:37,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:37,127 INFO L93 Difference]: Finished difference Result 24780 states and 65519 transitions. [2021-07-13 19:03:37,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:03:37,128 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:03:37,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:37,170 INFO L225 Difference]: With dead ends: 24780 [2021-07-13 19:03:37,170 INFO L226 Difference]: Without dead ends: 24780 [2021-07-13 19:03:37,171 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1326.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:03:37,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24780 states. [2021-07-13 19:03:37,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24780 to 10109. [2021-07-13 19:03:37,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 10107 states have (on average 2.6943702384486) internal successors, (27232), 10108 states have internal predecessors, (27232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:37,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 27232 transitions. [2021-07-13 19:03:37,441 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 27232 transitions. Word has length 114 [2021-07-13 19:03:37,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:37,441 INFO L482 AbstractCegarLoop]: Abstraction has 10109 states and 27232 transitions. [2021-07-13 19:03:37,441 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:37,441 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 27232 transitions. [2021-07-13 19:03:37,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:03:37,453 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:37,453 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:37,454 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2021-07-13 19:03:37,454 INFO L430 AbstractCegarLoop]: === Iteration 219 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:37,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:37,454 INFO L82 PathProgramCache]: Analyzing trace with hash 1360779982, now seen corresponding path program 210 times [2021-07-13 19:03:37,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:37,454 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588571564] [2021-07-13 19:03:37,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:37,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:37,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:37,762 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:37,762 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588571564] [2021-07-13 19:03:37,762 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588571564] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:37,762 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:37,762 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:03:37,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991418046] [2021-07-13 19:03:37,762 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:03:37,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:37,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:03:37,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:03:37,763 INFO L87 Difference]: Start difference. First operand 10109 states and 27232 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:38,547 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:03:38,705 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:03:38,878 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:03:39,079 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:03:39,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:39,271 INFO L93 Difference]: Finished difference Result 28342 states and 74567 transitions. [2021-07-13 19:03:39,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:03:39,271 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:03:39,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:39,315 INFO L225 Difference]: With dead ends: 28342 [2021-07-13 19:03:39,315 INFO L226 Difference]: Without dead ends: 28342 [2021-07-13 19:03:39,315 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1325.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:03:39,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28342 states. [2021-07-13 19:03:39,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28342 to 10141. [2021-07-13 19:03:39,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:39,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-07-13 19:03:39,655 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-07-13 19:03:39,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:39,656 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-07-13 19:03:39,656 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:39,656 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-07-13 19:03:39,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:03:39,667 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:39,667 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:39,667 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2021-07-13 19:03:39,667 INFO L430 AbstractCegarLoop]: === Iteration 220 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:39,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:39,667 INFO L82 PathProgramCache]: Analyzing trace with hash -724598964, now seen corresponding path program 211 times [2021-07-13 19:03:39,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:39,667 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953115262] [2021-07-13 19:03:39,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:39,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:39,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:39,977 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:39,978 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953115262] [2021-07-13 19:03:39,978 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953115262] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:39,978 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:39,978 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:03:39,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573252698] [2021-07-13 19:03:39,978 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:03:39,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:39,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:03:39,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:03:39,978 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:40,784 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:03:40,944 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:03:41,137 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:03:41,332 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:03:41,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:41,548 INFO L93 Difference]: Finished difference Result 29155 states and 76371 transitions. [2021-07-13 19:03:41,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:03:41,548 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:03:41,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:41,591 INFO L225 Difference]: With dead ends: 29155 [2021-07-13 19:03:41,591 INFO L226 Difference]: Without dead ends: 29155 [2021-07-13 19:03:41,591 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1338.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:03:41,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29155 states. [2021-07-13 19:03:41,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29155 to 10125. [2021-07-13 19:03:41,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10125 states, 10123 states have (on average 2.6946557344660675) internal successors, (27278), 10124 states have internal predecessors, (27278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:41,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10125 states to 10125 states and 27278 transitions. [2021-07-13 19:03:41,883 INFO L78 Accepts]: Start accepts. Automaton has 10125 states and 27278 transitions. Word has length 114 [2021-07-13 19:03:41,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:41,883 INFO L482 AbstractCegarLoop]: Abstraction has 10125 states and 27278 transitions. [2021-07-13 19:03:41,883 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:41,883 INFO L276 IsEmpty]: Start isEmpty. Operand 10125 states and 27278 transitions. [2021-07-13 19:03:41,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:03:41,895 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:41,895 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:41,895 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2021-07-13 19:03:41,895 INFO L430 AbstractCegarLoop]: === Iteration 221 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:41,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:41,895 INFO L82 PathProgramCache]: Analyzing trace with hash -998823762, now seen corresponding path program 212 times [2021-07-13 19:03:41,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:41,895 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765406288] [2021-07-13 19:03:41,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:41,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:42,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:42,268 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:42,268 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765406288] [2021-07-13 19:03:42,268 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765406288] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:42,268 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:42,268 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:03:42,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955463657] [2021-07-13 19:03:42,268 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:03:42,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:42,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:03:42,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:03:42,269 INFO L87 Difference]: Start difference. First operand 10125 states and 27278 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:43,074 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:03:43,236 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:03:43,424 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:03:43,623 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:03:43,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:43,831 INFO L93 Difference]: Finished difference Result 28481 states and 74784 transitions. [2021-07-13 19:03:43,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:03:43,832 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:03:43,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:43,875 INFO L225 Difference]: With dead ends: 28481 [2021-07-13 19:03:43,876 INFO L226 Difference]: Without dead ends: 28481 [2021-07-13 19:03:43,876 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1396.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:03:43,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28481 states. [2021-07-13 19:03:44,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28481 to 10141. [2021-07-13 19:03:44,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:44,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-07-13 19:03:44,137 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-07-13 19:03:44,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:44,137 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-07-13 19:03:44,137 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:44,137 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-07-13 19:03:44,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:03:44,148 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:44,148 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:44,148 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2021-07-13 19:03:44,149 INFO L430 AbstractCegarLoop]: === Iteration 222 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:44,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:44,149 INFO L82 PathProgramCache]: Analyzing trace with hash -1247370742, now seen corresponding path program 213 times [2021-07-13 19:03:44,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:44,149 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697232490] [2021-07-13 19:03:44,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:44,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:44,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:44,503 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:44,503 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697232490] [2021-07-13 19:03:44,503 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697232490] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:44,503 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:44,503 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:03:44,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390036054] [2021-07-13 19:03:44,503 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:03:44,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:44,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:03:44,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:03:44,504 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:45,318 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:03:45,478 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:03:45,651 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:03:45,846 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:03:46,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:46,018 INFO L93 Difference]: Finished difference Result 25546 states and 67310 transitions. [2021-07-13 19:03:46,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:03:46,018 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:03:46,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:46,057 INFO L225 Difference]: With dead ends: 25546 [2021-07-13 19:03:46,057 INFO L226 Difference]: Without dead ends: 25546 [2021-07-13 19:03:46,057 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1387.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:03:46,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25546 states. [2021-07-13 19:03:46,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25546 to 10077. [2021-07-13 19:03:46,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10077 states, 10075 states have (on average 2.6937965260545904) internal successors, (27140), 10076 states have internal predecessors, (27140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:46,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10077 states to 10077 states and 27140 transitions. [2021-07-13 19:03:46,295 INFO L78 Accepts]: Start accepts. Automaton has 10077 states and 27140 transitions. Word has length 114 [2021-07-13 19:03:46,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:46,295 INFO L482 AbstractCegarLoop]: Abstraction has 10077 states and 27140 transitions. [2021-07-13 19:03:46,295 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:46,296 INFO L276 IsEmpty]: Start isEmpty. Operand 10077 states and 27140 transitions. [2021-07-13 19:03:46,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:03:46,307 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:46,307 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:46,307 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2021-07-13 19:03:46,307 INFO L430 AbstractCegarLoop]: === Iteration 223 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:46,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:46,307 INFO L82 PathProgramCache]: Analyzing trace with hash -367022292, now seen corresponding path program 214 times [2021-07-13 19:03:46,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:46,307 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537224127] [2021-07-13 19:03:46,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:46,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:46,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:46,612 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:46,613 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537224127] [2021-07-13 19:03:46,613 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537224127] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:46,613 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:46,613 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:03:46,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622517076] [2021-07-13 19:03:46,613 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:03:46,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:46,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:03:46,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:03:46,613 INFO L87 Difference]: Start difference. First operand 10077 states and 27140 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:47,425 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:03:47,586 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:03:47,798 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:03:47,994 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:03:48,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:48,186 INFO L93 Difference]: Finished difference Result 24718 states and 65373 transitions. [2021-07-13 19:03:48,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:03:48,187 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:03:48,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:48,224 INFO L225 Difference]: With dead ends: 24718 [2021-07-13 19:03:48,224 INFO L226 Difference]: Without dead ends: 24718 [2021-07-13 19:03:48,224 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1362.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:03:48,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24718 states. [2021-07-13 19:03:48,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24718 to 10141. [2021-07-13 19:03:48,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:48,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-07-13 19:03:48,459 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-07-13 19:03:48,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:48,459 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-07-13 19:03:48,459 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:48,459 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-07-13 19:03:48,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:03:48,472 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:48,472 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:48,472 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2021-07-13 19:03:48,472 INFO L430 AbstractCegarLoop]: === Iteration 224 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:48,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:48,473 INFO L82 PathProgramCache]: Analyzing trace with hash 1842566058, now seen corresponding path program 215 times [2021-07-13 19:03:48,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:48,473 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078488155] [2021-07-13 19:03:48,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:48,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:48,807 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:48,807 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078488155] [2021-07-13 19:03:48,807 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078488155] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:48,807 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:48,807 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:03:48,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171219378] [2021-07-13 19:03:48,807 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:03:48,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:48,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:03:48,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:03:48,808 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:49,595 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:03:49,752 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:03:49,941 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:03:50,131 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:03:50,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:50,321 INFO L93 Difference]: Finished difference Result 25531 states and 67177 transitions. [2021-07-13 19:03:50,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:03:50,322 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:03:50,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:50,367 INFO L225 Difference]: With dead ends: 25531 [2021-07-13 19:03:50,367 INFO L226 Difference]: Without dead ends: 25531 [2021-07-13 19:03:50,367 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1342.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:03:50,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25531 states. [2021-07-13 19:03:50,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25531 to 10125. [2021-07-13 19:03:50,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10125 states, 10123 states have (on average 2.6946557344660675) internal successors, (27278), 10124 states have internal predecessors, (27278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:50,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10125 states to 10125 states and 27278 transitions. [2021-07-13 19:03:50,680 INFO L78 Accepts]: Start accepts. Automaton has 10125 states and 27278 transitions. Word has length 114 [2021-07-13 19:03:50,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:50,680 INFO L482 AbstractCegarLoop]: Abstraction has 10125 states and 27278 transitions. [2021-07-13 19:03:50,680 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:50,680 INFO L276 IsEmpty]: Start isEmpty. Operand 10125 states and 27278 transitions. [2021-07-13 19:03:50,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:03:50,692 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:50,692 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:50,692 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2021-07-13 19:03:50,692 INFO L430 AbstractCegarLoop]: === Iteration 225 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:50,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:50,693 INFO L82 PathProgramCache]: Analyzing trace with hash 1568341260, now seen corresponding path program 216 times [2021-07-13 19:03:50,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:50,693 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090878885] [2021-07-13 19:03:50,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:50,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:51,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:51,004 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:51,004 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090878885] [2021-07-13 19:03:51,004 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090878885] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:51,004 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:51,004 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:03:51,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180465600] [2021-07-13 19:03:51,004 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:03:51,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:51,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:03:51,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:03:51,005 INFO L87 Difference]: Start difference. First operand 10125 states and 27278 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:51,794 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:03:51,952 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:03:52,137 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:03:52,331 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:03:52,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:52,545 INFO L93 Difference]: Finished difference Result 28644 states and 75127 transitions. [2021-07-13 19:03:52,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:03:52,545 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:03:52,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:52,595 INFO L225 Difference]: With dead ends: 28644 [2021-07-13 19:03:52,595 INFO L226 Difference]: Without dead ends: 28644 [2021-07-13 19:03:52,595 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1347.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:03:52,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28644 states. [2021-07-13 19:03:52,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28644 to 10141. [2021-07-13 19:03:52,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:52,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-07-13 19:03:52,979 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-07-13 19:03:52,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:52,979 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-07-13 19:03:52,979 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:52,979 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-07-13 19:03:52,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:03:52,990 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:52,990 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:52,990 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2021-07-13 19:03:52,990 INFO L430 AbstractCegarLoop]: === Iteration 226 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:52,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:52,991 INFO L82 PathProgramCache]: Analyzing trace with hash 1319794280, now seen corresponding path program 217 times [2021-07-13 19:03:52,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:52,991 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61977063] [2021-07-13 19:03:52,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:53,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:53,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:53,301 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:53,301 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61977063] [2021-07-13 19:03:53,301 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61977063] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:53,301 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:53,301 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:03:53,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843550862] [2021-07-13 19:03:53,302 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:03:53,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:53,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:03:53,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:03:53,302 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:54,086 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:03:54,246 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:03:54,421 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:03:54,618 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:03:54,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:54,795 INFO L93 Difference]: Finished difference Result 25709 states and 67653 transitions. [2021-07-13 19:03:54,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:03:54,796 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:03:54,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:54,839 INFO L225 Difference]: With dead ends: 25709 [2021-07-13 19:03:54,839 INFO L226 Difference]: Without dead ends: 25709 [2021-07-13 19:03:54,839 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1333.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:03:54,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25709 states. [2021-07-13 19:03:55,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25709 to 10109. [2021-07-13 19:03:55,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 10107 states have (on average 2.6943702384486) internal successors, (27232), 10108 states have internal predecessors, (27232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:55,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 27232 transitions. [2021-07-13 19:03:55,106 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 27232 transitions. Word has length 114 [2021-07-13 19:03:55,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:55,106 INFO L482 AbstractCegarLoop]: Abstraction has 10109 states and 27232 transitions. [2021-07-13 19:03:55,106 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:55,106 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 27232 transitions. [2021-07-13 19:03:55,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:03:55,119 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:55,119 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:55,119 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2021-07-13 19:03:55,120 INFO L430 AbstractCegarLoop]: === Iteration 227 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:55,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:55,120 INFO L82 PathProgramCache]: Analyzing trace with hash -1496710230, now seen corresponding path program 218 times [2021-07-13 19:03:55,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:55,120 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039759263] [2021-07-13 19:03:55,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:55,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:55,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:55,444 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:55,444 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039759263] [2021-07-13 19:03:55,444 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039759263] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:55,444 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:55,444 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:03:55,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156334141] [2021-07-13 19:03:55,444 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:03:55,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:55,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:03:55,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:03:55,445 INFO L87 Difference]: Start difference. First operand 10109 states and 27232 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:56,241 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:03:56,413 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:03:56,601 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:03:56,795 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:03:56,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:56,974 INFO L93 Difference]: Finished difference Result 24841 states and 65544 transitions. [2021-07-13 19:03:56,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:03:56,974 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:03:56,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:57,014 INFO L225 Difference]: With dead ends: 24841 [2021-07-13 19:03:57,014 INFO L226 Difference]: Without dead ends: 24841 [2021-07-13 19:03:57,014 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1352.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:03:57,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24841 states. [2021-07-13 19:03:57,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24841 to 10157. [2021-07-13 19:03:57,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10157 states, 10155 states have (on average 2.6952240275726242) internal successors, (27370), 10156 states have internal predecessors, (27370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:57,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10157 states to 10157 states and 27370 transitions. [2021-07-13 19:03:57,278 INFO L78 Accepts]: Start accepts. Automaton has 10157 states and 27370 transitions. Word has length 114 [2021-07-13 19:03:57,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:57,278 INFO L482 AbstractCegarLoop]: Abstraction has 10157 states and 27370 transitions. [2021-07-13 19:03:57,278 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:57,278 INFO L276 IsEmpty]: Start isEmpty. Operand 10157 states and 27370 transitions. [2021-07-13 19:03:57,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:03:57,290 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:57,290 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:57,290 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2021-07-13 19:03:57,290 INFO L430 AbstractCegarLoop]: === Iteration 228 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:57,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:57,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1745257210, now seen corresponding path program 219 times [2021-07-13 19:03:57,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:57,290 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737195326] [2021-07-13 19:03:57,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:57,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:57,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:57,608 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:57,608 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737195326] [2021-07-13 19:03:57,608 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737195326] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:57,608 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:57,608 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:03:57,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859604052] [2021-07-13 19:03:57,608 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:03:57,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:57,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:03:57,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:03:57,608 INFO L87 Difference]: Start difference. First operand 10157 states and 27370 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:58,382 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:03:58,601 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:03:58,777 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:03:58,974 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:03:59,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:59,152 INFO L93 Difference]: Finished difference Result 24681 states and 65142 transitions. [2021-07-13 19:03:59,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:03:59,152 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:03:59,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:59,193 INFO L225 Difference]: With dead ends: 24681 [2021-07-13 19:03:59,193 INFO L226 Difference]: Without dead ends: 24681 [2021-07-13 19:03:59,193 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1357.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:03:59,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24681 states. [2021-07-13 19:03:59,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24681 to 10141. [2021-07-13 19:03:59,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:59,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-07-13 19:03:59,450 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-07-13 19:03:59,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:59,450 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-07-13 19:03:59,450 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:59,450 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-07-13 19:03:59,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:03:59,463 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:59,463 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:59,463 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2021-07-13 19:03:59,463 INFO L430 AbstractCegarLoop]: === Iteration 229 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:59,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:59,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1392892782, now seen corresponding path program 220 times [2021-07-13 19:03:59,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:59,464 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949887168] [2021-07-13 19:03:59,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:59,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:59,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:59,799 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:59,799 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949887168] [2021-07-13 19:03:59,799 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949887168] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:59,799 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:59,799 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:03:59,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79113180] [2021-07-13 19:03:59,800 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:03:59,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:59,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:03:59,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:03:59,800 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:00,578 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:04:00,728 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:04:00,916 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:04:01,115 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:04:01,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:01,329 INFO L93 Difference]: Finished difference Result 22114 states and 58596 transitions. [2021-07-13 19:04:01,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:04:01,330 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:04:01,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:01,358 INFO L225 Difference]: With dead ends: 22114 [2021-07-13 19:04:01,358 INFO L226 Difference]: Without dead ends: 22114 [2021-07-13 19:04:01,359 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1340.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:04:01,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22114 states. [2021-07-13 19:04:01,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22114 to 10013. [2021-07-13 19:04:01,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10013 states, 10011 states have (on average 2.6926380980920985) internal successors, (26956), 10012 states have internal predecessors, (26956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:01,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10013 states to 10013 states and 26956 transitions. [2021-07-13 19:04:01,563 INFO L78 Accepts]: Start accepts. Automaton has 10013 states and 26956 transitions. Word has length 114 [2021-07-13 19:04:01,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:01,564 INFO L482 AbstractCegarLoop]: Abstraction has 10013 states and 26956 transitions. [2021-07-13 19:04:01,564 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:01,564 INFO L276 IsEmpty]: Start isEmpty. Operand 10013 states and 26956 transitions. [2021-07-13 19:04:01,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:04:01,575 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:01,575 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:01,575 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2021-07-13 19:04:01,575 INFO L430 AbstractCegarLoop]: === Iteration 230 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:01,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:01,575 INFO L82 PathProgramCache]: Analyzing trace with hash -346116308, now seen corresponding path program 221 times [2021-07-13 19:04:01,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:01,576 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830443833] [2021-07-13 19:04:01,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:01,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:01,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:01,915 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:01,915 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830443833] [2021-07-13 19:04:01,915 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830443833] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:01,915 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:01,916 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:04:01,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326538082] [2021-07-13 19:04:01,916 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:04:01,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:01,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:04:01,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:04:01,916 INFO L87 Difference]: Start difference. First operand 10013 states and 26956 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:02,690 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:04:02,868 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:04:03,043 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:04:03,242 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:04:03,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:03,440 INFO L93 Difference]: Finished difference Result 28046 states and 74378 transitions. [2021-07-13 19:04:03,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:04:03,440 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:04:03,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:03,489 INFO L225 Difference]: With dead ends: 28046 [2021-07-13 19:04:03,489 INFO L226 Difference]: Without dead ends: 28046 [2021-07-13 19:04:03,489 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1337.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:04:03,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28046 states. [2021-07-13 19:04:03,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28046 to 10109. [2021-07-13 19:04:03,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 10107 states have (on average 2.6943702384486) internal successors, (27232), 10108 states have internal predecessors, (27232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:03,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 27232 transitions. [2021-07-13 19:04:03,821 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 27232 transitions. Word has length 114 [2021-07-13 19:04:03,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:03,821 INFO L482 AbstractCegarLoop]: Abstraction has 10109 states and 27232 transitions. [2021-07-13 19:04:03,821 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:03,821 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 27232 transitions. [2021-07-13 19:04:03,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:04:03,832 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:03,832 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:03,833 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2021-07-13 19:04:03,833 INFO L430 AbstractCegarLoop]: === Iteration 231 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:03,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:03,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1863472042, now seen corresponding path program 222 times [2021-07-13 19:04:03,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:03,833 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242670153] [2021-07-13 19:04:03,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:03,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:04,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:04,159 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:04,159 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242670153] [2021-07-13 19:04:04,159 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242670153] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:04,160 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:04,160 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:04:04,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737498399] [2021-07-13 19:04:04,160 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:04:04,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:04,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:04:04,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:04:04,160 INFO L87 Difference]: Start difference. First operand 10109 states and 27232 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:04,931 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:04:05,106 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:04:05,294 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:04:05,489 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:04:05,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:05,689 INFO L93 Difference]: Finished difference Result 27624 states and 72864 transitions. [2021-07-13 19:04:05,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:04:05,690 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:04:05,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:05,731 INFO L225 Difference]: With dead ends: 27624 [2021-07-13 19:04:05,731 INFO L226 Difference]: Without dead ends: 27624 [2021-07-13 19:04:05,731 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1350.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:04:05,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27624 states. [2021-07-13 19:04:05,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27624 to 10093. [2021-07-13 19:04:05,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10093 states, 10091 states have (on average 2.6940838370825486) internal successors, (27186), 10092 states have internal predecessors, (27186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:06,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10093 states to 10093 states and 27186 transitions. [2021-07-13 19:04:06,001 INFO L78 Accepts]: Start accepts. Automaton has 10093 states and 27186 transitions. Word has length 114 [2021-07-13 19:04:06,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:06,001 INFO L482 AbstractCegarLoop]: Abstraction has 10093 states and 27186 transitions. [2021-07-13 19:04:06,001 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:06,001 INFO L276 IsEmpty]: Start isEmpty. Operand 10093 states and 27186 transitions. [2021-07-13 19:04:06,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:04:06,013 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:06,013 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:06,013 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2021-07-13 19:04:06,013 INFO L430 AbstractCegarLoop]: === Iteration 232 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:06,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:06,014 INFO L82 PathProgramCache]: Analyzing trace with hash 224358668, now seen corresponding path program 223 times [2021-07-13 19:04:06,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:06,014 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612051712] [2021-07-13 19:04:06,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:06,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:06,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:06,394 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:06,394 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612051712] [2021-07-13 19:04:06,394 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612051712] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:06,394 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:06,394 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:04:06,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351653534] [2021-07-13 19:04:06,395 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:04:06,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:06,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:04:06,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:04:06,395 INFO L87 Difference]: Start difference. First operand 10093 states and 27186 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:07,196 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:04:07,363 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:04:07,563 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:04:07,765 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:04:07,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:07,970 INFO L93 Difference]: Finished difference Result 25102 states and 66357 transitions. [2021-07-13 19:04:07,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:04:07,971 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:04:07,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:08,012 INFO L225 Difference]: With dead ends: 25102 [2021-07-13 19:04:08,013 INFO L226 Difference]: Without dead ends: 25102 [2021-07-13 19:04:08,013 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1339.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:04:08,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25102 states. [2021-07-13 19:04:08,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25102 to 10061. [2021-07-13 19:04:08,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10061 states, 10059 states have (on average 2.6935083010239587) internal successors, (27094), 10060 states have internal predecessors, (27094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:08,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10061 states to 10061 states and 27094 transitions. [2021-07-13 19:04:08,266 INFO L78 Accepts]: Start accepts. Automaton has 10061 states and 27094 transitions. Word has length 114 [2021-07-13 19:04:08,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:08,266 INFO L482 AbstractCegarLoop]: Abstraction has 10061 states and 27094 transitions. [2021-07-13 19:04:08,267 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:08,267 INFO L276 IsEmpty]: Start isEmpty. Operand 10061 states and 27094 transitions. [2021-07-13 19:04:08,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:04:08,278 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:08,278 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:08,278 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2021-07-13 19:04:08,278 INFO L430 AbstractCegarLoop]: === Iteration 233 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:08,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:08,278 INFO L82 PathProgramCache]: Analyzing trace with hash 522759342, now seen corresponding path program 224 times [2021-07-13 19:04:08,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:08,279 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000728835] [2021-07-13 19:04:08,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:08,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:08,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:08,584 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:08,584 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000728835] [2021-07-13 19:04:08,584 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000728835] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:08,584 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:08,584 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:04:08,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484141190] [2021-07-13 19:04:08,585 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:04:08,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:08,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:04:08,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:04:08,585 INFO L87 Difference]: Start difference. First operand 10061 states and 27094 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:09,142 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-07-13 19:04:09,419 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:04:09,579 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:04:09,754 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:04:09,949 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:04:10,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:10,139 INFO L93 Difference]: Finished difference Result 24912 states and 65843 transitions. [2021-07-13 19:04:10,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:04:10,139 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:04:10,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:10,179 INFO L225 Difference]: With dead ends: 24912 [2021-07-13 19:04:10,179 INFO L226 Difference]: Without dead ends: 24912 [2021-07-13 19:04:10,179 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1377.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:04:10,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24912 states. [2021-07-13 19:04:10,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24912 to 10093. [2021-07-13 19:04:10,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10093 states, 10091 states have (on average 2.6940838370825486) internal successors, (27186), 10092 states have internal predecessors, (27186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:10,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10093 states to 10093 states and 27186 transitions. [2021-07-13 19:04:10,427 INFO L78 Accepts]: Start accepts. Automaton has 10093 states and 27186 transitions. Word has length 114 [2021-07-13 19:04:10,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:10,428 INFO L482 AbstractCegarLoop]: Abstraction has 10093 states and 27186 transitions. [2021-07-13 19:04:10,428 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:10,428 INFO L276 IsEmpty]: Start isEmpty. Operand 10093 states and 27186 transitions. [2021-07-13 19:04:10,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:04:10,439 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:10,439 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:10,440 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2021-07-13 19:04:10,440 INFO L430 AbstractCegarLoop]: === Iteration 234 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:10,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:10,440 INFO L82 PathProgramCache]: Analyzing trace with hash -1562619604, now seen corresponding path program 225 times [2021-07-13 19:04:10,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:10,440 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659852158] [2021-07-13 19:04:10,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:10,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:10,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:10,749 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:10,749 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659852158] [2021-07-13 19:04:10,749 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659852158] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:10,749 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:10,749 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:04:10,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858122731] [2021-07-13 19:04:10,750 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:04:10,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:10,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:04:10,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:04:10,750 INFO L87 Difference]: Start difference. First operand 10093 states and 27186 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:11,558 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:04:11,721 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:04:11,914 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:04:12,138 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:04:12,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:12,348 INFO L93 Difference]: Finished difference Result 25725 states and 67647 transitions. [2021-07-13 19:04:12,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:04:12,348 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:04:12,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:12,388 INFO L225 Difference]: With dead ends: 25725 [2021-07-13 19:04:12,389 INFO L226 Difference]: Without dead ends: 25725 [2021-07-13 19:04:12,389 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1367.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:04:12,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25725 states. [2021-07-13 19:04:12,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25725 to 10077. [2021-07-13 19:04:12,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10077 states, 10075 states have (on average 2.6937965260545904) internal successors, (27140), 10076 states have internal predecessors, (27140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:12,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10077 states to 10077 states and 27140 transitions. [2021-07-13 19:04:12,629 INFO L78 Accepts]: Start accepts. Automaton has 10077 states and 27140 transitions. Word has length 114 [2021-07-13 19:04:12,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:12,629 INFO L482 AbstractCegarLoop]: Abstraction has 10077 states and 27140 transitions. [2021-07-13 19:04:12,629 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:12,629 INFO L276 IsEmpty]: Start isEmpty. Operand 10077 states and 27140 transitions. [2021-07-13 19:04:12,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:04:12,640 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:12,641 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:12,641 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2021-07-13 19:04:12,641 INFO L430 AbstractCegarLoop]: === Iteration 235 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:12,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:12,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1836844402, now seen corresponding path program 226 times [2021-07-13 19:04:12,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:12,641 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077613880] [2021-07-13 19:04:12,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:12,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:12,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:12,950 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:12,950 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077613880] [2021-07-13 19:04:12,950 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077613880] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:12,950 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:12,950 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:04:12,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066729742] [2021-07-13 19:04:12,950 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:04:12,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:12,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:04:12,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:04:12,951 INFO L87 Difference]: Start difference. First operand 10077 states and 27140 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:13,731 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:04:13,891 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:04:14,075 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:04:14,265 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:04:14,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:14,451 INFO L93 Difference]: Finished difference Result 25051 states and 66060 transitions. [2021-07-13 19:04:14,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:04:14,451 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:04:14,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:14,492 INFO L225 Difference]: With dead ends: 25051 [2021-07-13 19:04:14,492 INFO L226 Difference]: Without dead ends: 25051 [2021-07-13 19:04:14,492 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1340.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:04:14,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25051 states. [2021-07-13 19:04:14,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25051 to 10093. [2021-07-13 19:04:14,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10093 states, 10091 states have (on average 2.6940838370825486) internal successors, (27186), 10092 states have internal predecessors, (27186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:14,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10093 states to 10093 states and 27186 transitions. [2021-07-13 19:04:14,768 INFO L78 Accepts]: Start accepts. Automaton has 10093 states and 27186 transitions. Word has length 114 [2021-07-13 19:04:14,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:14,768 INFO L482 AbstractCegarLoop]: Abstraction has 10093 states and 27186 transitions. [2021-07-13 19:04:14,768 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:14,769 INFO L276 IsEmpty]: Start isEmpty. Operand 10093 states and 27186 transitions. [2021-07-13 19:04:14,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:04:14,780 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:14,780 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:14,780 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2021-07-13 19:04:14,780 INFO L430 AbstractCegarLoop]: === Iteration 236 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:14,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:14,780 INFO L82 PathProgramCache]: Analyzing trace with hash -2085391382, now seen corresponding path program 227 times [2021-07-13 19:04:14,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:14,781 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868266528] [2021-07-13 19:04:14,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:14,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:15,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:15,089 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:15,089 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868266528] [2021-07-13 19:04:15,089 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868266528] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:15,089 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:15,089 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:04:15,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126108133] [2021-07-13 19:04:15,090 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:04:15,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:15,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:04:15,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:04:15,090 INFO L87 Difference]: Start difference. First operand 10093 states and 27186 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:15,866 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:04:16,026 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:04:16,199 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:04:16,392 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:04:16,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:16,561 INFO L93 Difference]: Finished difference Result 22398 states and 59300 transitions. [2021-07-13 19:04:16,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:04:16,562 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:04:16,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:16,594 INFO L225 Difference]: With dead ends: 22398 [2021-07-13 19:04:16,594 INFO L226 Difference]: Without dead ends: 22398 [2021-07-13 19:04:16,594 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1321.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:04:16,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22398 states. [2021-07-13 19:04:16,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22398 to 10029. [2021-07-13 19:04:16,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10029 states, 10027 states have (on average 2.6929290914530766) internal successors, (27002), 10028 states have internal predecessors, (27002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:16,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10029 states to 10029 states and 27002 transitions. [2021-07-13 19:04:16,829 INFO L78 Accepts]: Start accepts. Automaton has 10029 states and 27002 transitions. Word has length 114 [2021-07-13 19:04:16,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:16,829 INFO L482 AbstractCegarLoop]: Abstraction has 10029 states and 27002 transitions. [2021-07-13 19:04:16,829 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:16,829 INFO L276 IsEmpty]: Start isEmpty. Operand 10029 states and 27002 transitions. [2021-07-13 19:04:16,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:04:16,840 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:16,840 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:16,840 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2021-07-13 19:04:16,840 INFO L430 AbstractCegarLoop]: === Iteration 237 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:16,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:16,840 INFO L82 PathProgramCache]: Analyzing trace with hash -440794546, now seen corresponding path program 228 times [2021-07-13 19:04:16,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:16,841 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415394815] [2021-07-13 19:04:16,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:16,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:17,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:17,236 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:17,237 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415394815] [2021-07-13 19:04:17,237 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415394815] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:17,237 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:17,237 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:04:17,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263930834] [2021-07-13 19:04:17,237 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:04:17,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:17,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:04:17,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:04:17,237 INFO L87 Difference]: Start difference. First operand 10029 states and 27002 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:18,017 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:04:18,196 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:04:18,376 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:04:18,574 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:04:18,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:18,747 INFO L93 Difference]: Finished difference Result 22614 states and 60100 transitions. [2021-07-13 19:04:18,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:04:18,748 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:04:18,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:18,780 INFO L225 Difference]: With dead ends: 22614 [2021-07-13 19:04:18,780 INFO L226 Difference]: Without dead ends: 22614 [2021-07-13 19:04:18,780 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1420.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:04:18,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22614 states. [2021-07-13 19:04:18,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22614 to 10093. [2021-07-13 19:04:18,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10093 states, 10091 states have (on average 2.6940838370825486) internal successors, (27186), 10092 states have internal predecessors, (27186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:19,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10093 states to 10093 states and 27186 transitions. [2021-07-13 19:04:19,008 INFO L78 Accepts]: Start accepts. Automaton has 10093 states and 27186 transitions. Word has length 114 [2021-07-13 19:04:19,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:19,008 INFO L482 AbstractCegarLoop]: Abstraction has 10093 states and 27186 transitions. [2021-07-13 19:04:19,008 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:19,008 INFO L276 IsEmpty]: Start isEmpty. Operand 10093 states and 27186 transitions. [2021-07-13 19:04:19,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:04:19,019 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:19,019 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:19,019 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2021-07-13 19:04:19,020 INFO L430 AbstractCegarLoop]: === Iteration 238 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:19,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:19,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1768793804, now seen corresponding path program 229 times [2021-07-13 19:04:19,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:19,020 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768569812] [2021-07-13 19:04:19,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:19,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:19,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:19,360 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:19,360 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768569812] [2021-07-13 19:04:19,360 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768569812] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:19,360 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:19,361 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:04:19,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489163200] [2021-07-13 19:04:19,361 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:04:19,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:19,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:04:19,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:04:19,361 INFO L87 Difference]: Start difference. First operand 10093 states and 27186 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:19,904 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-07-13 19:04:20,170 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:04:20,347 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:04:20,538 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:04:20,730 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:04:20,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:20,897 INFO L93 Difference]: Finished difference Result 22192 states and 58586 transitions. [2021-07-13 19:04:20,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:04:20,897 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:04:20,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:20,928 INFO L225 Difference]: With dead ends: 22192 [2021-07-13 19:04:20,928 INFO L226 Difference]: Without dead ends: 22192 [2021-07-13 19:04:20,928 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1400.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:04:20,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22192 states. [2021-07-13 19:04:21,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22192 to 10077. [2021-07-13 19:04:21,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10077 states, 10075 states have (on average 2.6937965260545904) internal successors, (27140), 10076 states have internal predecessors, (27140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:21,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10077 states to 10077 states and 27140 transitions. [2021-07-13 19:04:21,139 INFO L78 Accepts]: Start accepts. Automaton has 10077 states and 27140 transitions. Word has length 114 [2021-07-13 19:04:21,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:21,139 INFO L482 AbstractCegarLoop]: Abstraction has 10077 states and 27140 transitions. [2021-07-13 19:04:21,139 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:21,139 INFO L276 IsEmpty]: Start isEmpty. Operand 10077 states and 27140 transitions. [2021-07-13 19:04:21,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:04:21,150 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:21,150 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:21,151 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2021-07-13 19:04:21,151 INFO L430 AbstractCegarLoop]: === Iteration 239 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:21,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:21,151 INFO L82 PathProgramCache]: Analyzing trace with hash 129680430, now seen corresponding path program 230 times [2021-07-13 19:04:21,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:21,151 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737708553] [2021-07-13 19:04:21,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:21,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:21,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:21,521 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:21,521 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737708553] [2021-07-13 19:04:21,521 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737708553] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:21,522 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:21,522 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:04:21,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080810879] [2021-07-13 19:04:21,522 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:04:21,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:21,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:04:21,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:04:21,522 INFO L87 Difference]: Start difference. First operand 10077 states and 27140 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:22,304 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:04:22,458 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:04:22,658 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:04:22,890 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:04:23,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:23,053 INFO L93 Difference]: Finished difference Result 22174 states and 58640 transitions. [2021-07-13 19:04:23,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:04:23,053 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:04:23,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:23,085 INFO L225 Difference]: With dead ends: 22174 [2021-07-13 19:04:23,085 INFO L226 Difference]: Without dead ends: 22174 [2021-07-13 19:04:23,085 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1395.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:04:23,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22174 states. [2021-07-13 19:04:23,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22174 to 10045. [2021-07-13 19:04:23,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10045 states, 10043 states have (on average 2.6932191576222246) internal successors, (27048), 10044 states have internal predecessors, (27048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:23,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10045 states to 10045 states and 27048 transitions. [2021-07-13 19:04:23,303 INFO L78 Accepts]: Start accepts. Automaton has 10045 states and 27048 transitions. Word has length 114 [2021-07-13 19:04:23,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:23,303 INFO L482 AbstractCegarLoop]: Abstraction has 10045 states and 27048 transitions. [2021-07-13 19:04:23,303 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:23,303 INFO L276 IsEmpty]: Start isEmpty. Operand 10045 states and 27048 transitions. [2021-07-13 19:04:23,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:04:23,314 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:23,314 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:23,314 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2021-07-13 19:04:23,314 INFO L430 AbstractCegarLoop]: === Iteration 240 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:23,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:23,315 INFO L82 PathProgramCache]: Analyzing trace with hash -249136884, now seen corresponding path program 231 times [2021-07-13 19:04:23,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:23,315 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560042075] [2021-07-13 19:04:23,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:23,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:23,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:23,657 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:23,657 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560042075] [2021-07-13 19:04:23,658 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560042075] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:23,658 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:23,658 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:04:23,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994114313] [2021-07-13 19:04:23,658 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:04:23,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:23,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:04:23,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:04:23,658 INFO L87 Difference]: Start difference. First operand 10045 states and 27048 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:24,450 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-13 19:04:24,600 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:04:24,798 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:04:24,997 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:04:25,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:25,166 INFO L93 Difference]: Finished difference Result 19248 states and 51069 transitions. [2021-07-13 19:04:25,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:04:25,167 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:04:25,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:25,194 INFO L225 Difference]: With dead ends: 19248 [2021-07-13 19:04:25,195 INFO L226 Difference]: Without dead ends: 19248 [2021-07-13 19:04:25,195 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1351.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:04:25,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19248 states. [2021-07-13 19:04:25,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19248 to 9981. [2021-07-13 19:04:25,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.6920533119551058) internal successors, (26864), 9980 states have internal predecessors, (26864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:25,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26864 transitions. [2021-07-13 19:04:25,454 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26864 transitions. Word has length 114 [2021-07-13 19:04:25,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:25,454 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26864 transitions. [2021-07-13 19:04:25,454 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:25,454 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26864 transitions. [2021-07-13 19:04:25,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:04:25,465 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:25,465 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:25,465 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2021-07-13 19:04:25,465 INFO L430 AbstractCegarLoop]: === Iteration 241 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:25,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:25,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1788963626, now seen corresponding path program 232 times [2021-07-13 19:04:25,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:25,466 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050383171] [2021-07-13 19:04:25,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:25,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:25,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:25,787 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:25,787 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050383171] [2021-07-13 19:04:25,788 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050383171] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:25,788 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:25,788 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:04:25,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695859484] [2021-07-13 19:04:25,788 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:04:25,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:25,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:04:25,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:04:25,788 INFO L87 Difference]: Start difference. First operand 9981 states and 26864 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:26,440 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-13 19:04:26,582 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:04:26,755 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:04:26,927 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:04:27,125 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:04:27,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:27,294 INFO L93 Difference]: Finished difference Result 21137 states and 56055 transitions. [2021-07-13 19:04:27,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:04:27,295 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:04:27,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:27,326 INFO L225 Difference]: With dead ends: 21137 [2021-07-13 19:04:27,326 INFO L226 Difference]: Without dead ends: 21137 [2021-07-13 19:04:27,326 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1361.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:04:27,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21137 states. [2021-07-13 19:04:27,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21137 to 10157. [2021-07-13 19:04:27,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10157 states, 10155 states have (on average 2.6952240275726242) internal successors, (27370), 10156 states have internal predecessors, (27370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:27,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10157 states to 10157 states and 27370 transitions. [2021-07-13 19:04:27,551 INFO L78 Accepts]: Start accepts. Automaton has 10157 states and 27370 transitions. Word has length 114 [2021-07-13 19:04:27,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:27,551 INFO L482 AbstractCegarLoop]: Abstraction has 10157 states and 27370 transitions. [2021-07-13 19:04:27,551 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:27,552 INFO L276 IsEmpty]: Start isEmpty. Operand 10157 states and 27370 transitions. [2021-07-13 19:04:27,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:04:27,563 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:27,563 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:27,563 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2021-07-13 19:04:27,563 INFO L430 AbstractCegarLoop]: === Iteration 242 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:27,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:27,564 INFO L82 PathProgramCache]: Analyzing trace with hash -296415320, now seen corresponding path program 233 times [2021-07-13 19:04:27,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:27,564 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521255448] [2021-07-13 19:04:27,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:27,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:27,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:27,890 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:27,890 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521255448] [2021-07-13 19:04:27,890 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521255448] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:27,890 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:27,891 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:04:27,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453183139] [2021-07-13 19:04:27,891 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:04:27,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:27,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:04:27,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:04:27,891 INFO L87 Difference]: Start difference. First operand 10157 states and 27370 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:28,689 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:04:28,861 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:04:29,048 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:04:29,243 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:04:29,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:29,405 INFO L93 Difference]: Finished difference Result 20715 states and 54541 transitions. [2021-07-13 19:04:29,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:04:29,405 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:04:29,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:29,436 INFO L225 Difference]: With dead ends: 20715 [2021-07-13 19:04:29,436 INFO L226 Difference]: Without dead ends: 20715 [2021-07-13 19:04:29,436 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1351.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:04:29,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20715 states. [2021-07-13 19:04:29,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20715 to 10141. [2021-07-13 19:04:29,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:29,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-07-13 19:04:29,646 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-07-13 19:04:29,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:29,646 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-07-13 19:04:29,646 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:29,646 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-07-13 19:04:29,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:04:29,658 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:29,658 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:29,658 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2021-07-13 19:04:29,658 INFO L430 AbstractCegarLoop]: === Iteration 243 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:29,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:29,658 INFO L82 PathProgramCache]: Analyzing trace with hash -1935528694, now seen corresponding path program 234 times [2021-07-13 19:04:29,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:29,658 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767031026] [2021-07-13 19:04:29,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:29,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:29,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:29,983 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:29,983 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767031026] [2021-07-13 19:04:29,983 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767031026] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:29,983 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:29,983 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:04:29,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264937221] [2021-07-13 19:04:29,983 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:04:29,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:29,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:04:29,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:04:29,984 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:30,777 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:04:30,930 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:04:31,153 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:04:31,352 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:04:31,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:31,516 INFO L93 Difference]: Finished difference Result 18193 states and 48034 transitions. [2021-07-13 19:04:31,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:04:31,516 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:04:31,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:31,541 INFO L225 Difference]: With dead ends: 18193 [2021-07-13 19:04:31,541 INFO L226 Difference]: Without dead ends: 18193 [2021-07-13 19:04:31,541 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1329.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:04:31,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18193 states. [2021-07-13 19:04:31,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18193 to 10109. [2021-07-13 19:04:31,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 10107 states have (on average 2.6943702384486) internal successors, (27232), 10108 states have internal predecessors, (27232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:31,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 27232 transitions. [2021-07-13 19:04:31,745 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 27232 transitions. Word has length 114 [2021-07-13 19:04:31,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:31,745 INFO L482 AbstractCegarLoop]: Abstraction has 10109 states and 27232 transitions. [2021-07-13 19:04:31,745 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:31,745 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 27232 transitions. [2021-07-13 19:04:31,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:04:31,757 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:31,757 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:31,757 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2021-07-13 19:04:31,757 INFO L430 AbstractCegarLoop]: === Iteration 244 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:31,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:31,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1637128020, now seen corresponding path program 235 times [2021-07-13 19:04:31,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:31,758 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221464618] [2021-07-13 19:04:31,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:31,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:32,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:32,062 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:32,062 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221464618] [2021-07-13 19:04:32,062 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221464618] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:32,062 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:32,063 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:04:32,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570997637] [2021-07-13 19:04:32,063 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:04:32,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:32,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:04:32,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:04:32,063 INFO L87 Difference]: Start difference. First operand 10109 states and 27232 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:32,871 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:04:33,032 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:04:33,210 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:04:33,409 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:04:33,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:33,603 INFO L93 Difference]: Finished difference Result 21755 states and 57082 transitions. [2021-07-13 19:04:33,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:04:33,604 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:04:33,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:33,635 INFO L225 Difference]: With dead ends: 21755 [2021-07-13 19:04:33,635 INFO L226 Difference]: Without dead ends: 21755 [2021-07-13 19:04:33,635 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1328.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:04:33,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21755 states. [2021-07-13 19:04:33,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21755 to 10141. [2021-07-13 19:04:33,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:33,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-07-13 19:04:33,904 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-07-13 19:04:33,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:33,904 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-07-13 19:04:33,904 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:33,905 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-07-13 19:04:33,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:04:33,917 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:33,917 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:33,917 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2021-07-13 19:04:33,917 INFO L430 AbstractCegarLoop]: === Iteration 245 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:33,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:33,917 INFO L82 PathProgramCache]: Analyzing trace with hash 572460330, now seen corresponding path program 236 times [2021-07-13 19:04:33,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:33,917 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089925666] [2021-07-13 19:04:33,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:33,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:34,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:34,229 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:34,229 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089925666] [2021-07-13 19:04:34,229 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089925666] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:34,229 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:34,229 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:04:34,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20859640] [2021-07-13 19:04:34,229 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:04:34,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:34,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:04:34,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:04:34,230 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:35,033 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:04:35,192 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:04:35,384 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:04:35,578 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:04:35,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:35,771 INFO L93 Difference]: Finished difference Result 22568 states and 58886 transitions. [2021-07-13 19:04:35,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:04:35,771 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:04:35,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:35,805 INFO L225 Difference]: With dead ends: 22568 [2021-07-13 19:04:35,805 INFO L226 Difference]: Without dead ends: 22568 [2021-07-13 19:04:35,805 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1334.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:04:35,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22568 states. [2021-07-13 19:04:36,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22568 to 10125. [2021-07-13 19:04:36,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10125 states, 10123 states have (on average 2.6946557344660675) internal successors, (27278), 10124 states have internal predecessors, (27278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:36,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10125 states to 10125 states and 27278 transitions. [2021-07-13 19:04:36,034 INFO L78 Accepts]: Start accepts. Automaton has 10125 states and 27278 transitions. Word has length 114 [2021-07-13 19:04:36,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:36,034 INFO L482 AbstractCegarLoop]: Abstraction has 10125 states and 27278 transitions. [2021-07-13 19:04:36,034 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:36,034 INFO L276 IsEmpty]: Start isEmpty. Operand 10125 states and 27278 transitions. [2021-07-13 19:04:36,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:04:36,046 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:36,046 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:36,046 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2021-07-13 19:04:36,046 INFO L430 AbstractCegarLoop]: === Iteration 246 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:36,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:36,046 INFO L82 PathProgramCache]: Analyzing trace with hash 298235532, now seen corresponding path program 237 times [2021-07-13 19:04:36,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:36,046 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078443851] [2021-07-13 19:04:36,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:36,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:36,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:36,429 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:36,429 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078443851] [2021-07-13 19:04:36,429 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078443851] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:36,429 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:36,429 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:04:36,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940830634] [2021-07-13 19:04:36,429 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:04:36,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:36,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:04:36,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:04:36,430 INFO L87 Difference]: Start difference. First operand 10125 states and 27278 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:37,235 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:04:37,398 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:04:37,585 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:04:37,783 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:04:37,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:37,967 INFO L93 Difference]: Finished difference Result 21894 states and 57299 transitions. [2021-07-13 19:04:37,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:04:37,967 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:04:37,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:37,999 INFO L225 Difference]: With dead ends: 21894 [2021-07-13 19:04:37,999 INFO L226 Difference]: Without dead ends: 21894 [2021-07-13 19:04:37,999 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1338.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:04:38,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21894 states. [2021-07-13 19:04:38,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21894 to 10141. [2021-07-13 19:04:38,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:38,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-07-13 19:04:38,220 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-07-13 19:04:38,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:38,221 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-07-13 19:04:38,221 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:38,221 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-07-13 19:04:38,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:04:38,232 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:38,232 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:38,232 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2021-07-13 19:04:38,232 INFO L430 AbstractCegarLoop]: === Iteration 247 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:38,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:38,232 INFO L82 PathProgramCache]: Analyzing trace with hash 49688552, now seen corresponding path program 238 times [2021-07-13 19:04:38,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:38,232 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983748617] [2021-07-13 19:04:38,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:38,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:38,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:38,548 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:38,548 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983748617] [2021-07-13 19:04:38,548 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983748617] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:38,548 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:38,549 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:04:38,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688914625] [2021-07-13 19:04:38,549 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:04:38,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:38,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:04:38,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:04:38,549 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:39,072 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-07-13 19:04:39,225 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-13 19:04:39,376 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:04:39,534 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:04:39,707 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:04:39,902 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:04:40,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:40,044 INFO L93 Difference]: Finished difference Result 18959 states and 49825 transitions. [2021-07-13 19:04:40,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:04:40,045 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:04:40,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:40,071 INFO L225 Difference]: With dead ends: 18959 [2021-07-13 19:04:40,071 INFO L226 Difference]: Without dead ends: 18959 [2021-07-13 19:04:40,071 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1370.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:04:40,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18959 states. [2021-07-13 19:04:40,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18959 to 10077. [2021-07-13 19:04:40,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10077 states, 10075 states have (on average 2.6937965260545904) internal successors, (27140), 10076 states have internal predecessors, (27140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:40,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10077 states to 10077 states and 27140 transitions. [2021-07-13 19:04:40,266 INFO L78 Accepts]: Start accepts. Automaton has 10077 states and 27140 transitions. Word has length 114 [2021-07-13 19:04:40,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:40,267 INFO L482 AbstractCegarLoop]: Abstraction has 10077 states and 27140 transitions. [2021-07-13 19:04:40,267 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:40,267 INFO L276 IsEmpty]: Start isEmpty. Operand 10077 states and 27140 transitions. [2021-07-13 19:04:40,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:04:40,278 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:40,278 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:40,278 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2021-07-13 19:04:40,278 INFO L430 AbstractCegarLoop]: === Iteration 248 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:40,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:40,278 INFO L82 PathProgramCache]: Analyzing trace with hash 930037002, now seen corresponding path program 239 times [2021-07-13 19:04:40,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:40,278 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360113194] [2021-07-13 19:04:40,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:40,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:40,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:40,581 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:40,581 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360113194] [2021-07-13 19:04:40,581 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360113194] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:40,581 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:40,581 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:04:40,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752399328] [2021-07-13 19:04:40,581 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:04:40,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:40,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:04:40,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:04:40,582 INFO L87 Difference]: Start difference. First operand 10077 states and 27140 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:41,364 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:04:41,522 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:04:41,699 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:04:41,924 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:04:42,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:42,098 INFO L93 Difference]: Finished difference Result 22313 states and 58612 transitions. [2021-07-13 19:04:42,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:04:42,098 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:04:42,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:42,129 INFO L225 Difference]: With dead ends: 22313 [2021-07-13 19:04:42,130 INFO L226 Difference]: Without dead ends: 22313 [2021-07-13 19:04:42,130 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1353.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:04:42,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22313 states. [2021-07-13 19:04:42,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22313 to 10141. [2021-07-13 19:04:42,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:42,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-07-13 19:04:42,357 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-07-13 19:04:42,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:42,357 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-07-13 19:04:42,357 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:42,357 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-07-13 19:04:42,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:04:42,368 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:42,369 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:42,369 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2021-07-13 19:04:42,369 INFO L430 AbstractCegarLoop]: === Iteration 249 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:42,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:42,369 INFO L82 PathProgramCache]: Analyzing trace with hash -1155341944, now seen corresponding path program 240 times [2021-07-13 19:04:42,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:42,369 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650369473] [2021-07-13 19:04:42,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:42,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:42,720 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:42,720 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650369473] [2021-07-13 19:04:42,720 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650369473] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:42,720 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:42,720 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:04:42,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418657595] [2021-07-13 19:04:42,721 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:04:42,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:42,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:04:42,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:04:42,721 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:43,522 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:04:43,679 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:04:43,869 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:04:44,060 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:04:44,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:44,231 INFO L93 Difference]: Finished difference Result 23126 states and 60416 transitions. [2021-07-13 19:04:44,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:04:44,232 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:04:44,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:44,264 INFO L225 Difference]: With dead ends: 23126 [2021-07-13 19:04:44,264 INFO L226 Difference]: Without dead ends: 23126 [2021-07-13 19:04:44,264 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1377.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:04:44,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23126 states. [2021-07-13 19:04:44,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23126 to 10125. [2021-07-13 19:04:44,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10125 states, 10123 states have (on average 2.6946557344660675) internal successors, (27278), 10124 states have internal predecessors, (27278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:44,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10125 states to 10125 states and 27278 transitions. [2021-07-13 19:04:44,534 INFO L78 Accepts]: Start accepts. Automaton has 10125 states and 27278 transitions. Word has length 114 [2021-07-13 19:04:44,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:44,534 INFO L482 AbstractCegarLoop]: Abstraction has 10125 states and 27278 transitions. [2021-07-13 19:04:44,534 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:44,534 INFO L276 IsEmpty]: Start isEmpty. Operand 10125 states and 27278 transitions. [2021-07-13 19:04:44,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:04:44,545 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:44,545 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:44,545 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2021-07-13 19:04:44,545 INFO L430 AbstractCegarLoop]: === Iteration 250 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:44,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:44,546 INFO L82 PathProgramCache]: Analyzing trace with hash -1429566742, now seen corresponding path program 241 times [2021-07-13 19:04:44,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:44,546 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150272661] [2021-07-13 19:04:44,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:44,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:44,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:44,855 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:44,855 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150272661] [2021-07-13 19:04:44,855 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150272661] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:44,855 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:44,855 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:04:44,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473527911] [2021-07-13 19:04:44,855 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:04:44,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:44,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:04:44,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:04:44,856 INFO L87 Difference]: Start difference. First operand 10125 states and 27278 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:45,636 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:04:45,794 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:04:45,979 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:04:46,173 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:04:46,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:46,360 INFO L93 Difference]: Finished difference Result 26239 states and 68366 transitions. [2021-07-13 19:04:46,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:04:46,361 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:04:46,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:46,400 INFO L225 Difference]: With dead ends: 26239 [2021-07-13 19:04:46,400 INFO L226 Difference]: Without dead ends: 26239 [2021-07-13 19:04:46,400 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1342.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:04:46,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26239 states. [2021-07-13 19:04:46,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26239 to 10141. [2021-07-13 19:04:46,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:46,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-07-13 19:04:46,634 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-07-13 19:04:46,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:46,634 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-07-13 19:04:46,634 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:46,634 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-07-13 19:04:46,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:04:46,645 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:46,645 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:46,645 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2021-07-13 19:04:46,645 INFO L430 AbstractCegarLoop]: === Iteration 251 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:46,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:46,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1678113722, now seen corresponding path program 242 times [2021-07-13 19:04:46,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:46,646 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249506291] [2021-07-13 19:04:46,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:46,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:47,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:47,005 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:47,005 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249506291] [2021-07-13 19:04:47,005 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249506291] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:47,005 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:47,005 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:04:47,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058319434] [2021-07-13 19:04:47,005 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:04:47,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:47,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:04:47,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:04:47,006 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:47,638 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-13 19:04:47,790 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:04:47,952 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:04:48,128 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:04:48,325 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:04:48,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:48,485 INFO L93 Difference]: Finished difference Result 23304 states and 60892 transitions. [2021-07-13 19:04:48,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:04:48,486 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:04:48,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:48,519 INFO L225 Difference]: With dead ends: 23304 [2021-07-13 19:04:48,519 INFO L226 Difference]: Without dead ends: 23304 [2021-07-13 19:04:48,519 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1392.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:04:48,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23304 states. [2021-07-13 19:04:48,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23304 to 10109. [2021-07-13 19:04:48,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 10107 states have (on average 2.6943702384486) internal successors, (27232), 10108 states have internal predecessors, (27232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:48,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 27232 transitions. [2021-07-13 19:04:48,759 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 27232 transitions. Word has length 114 [2021-07-13 19:04:48,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:48,760 INFO L482 AbstractCegarLoop]: Abstraction has 10109 states and 27232 transitions. [2021-07-13 19:04:48,760 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:48,760 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 27232 transitions. [2021-07-13 19:04:48,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:04:48,771 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:48,771 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:48,771 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2021-07-13 19:04:48,771 INFO L430 AbstractCegarLoop]: === Iteration 252 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:48,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:48,772 INFO L82 PathProgramCache]: Analyzing trace with hash -199650936, now seen corresponding path program 243 times [2021-07-13 19:04:48,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:48,772 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105446220] [2021-07-13 19:04:48,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:48,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:49,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:49,095 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:49,095 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105446220] [2021-07-13 19:04:49,095 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105446220] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:49,095 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:49,095 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:04:49,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948867934] [2021-07-13 19:04:49,095 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:04:49,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:49,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:04:49,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:04:49,096 INFO L87 Difference]: Start difference. First operand 10109 states and 27232 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:49,905 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:04:50,077 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:04:50,265 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:04:50,461 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:04:50,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:50,628 INFO L93 Difference]: Finished difference Result 22436 states and 58783 transitions. [2021-07-13 19:04:50,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:04:50,628 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:04:50,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:50,661 INFO L225 Difference]: With dead ends: 22436 [2021-07-13 19:04:50,661 INFO L226 Difference]: Without dead ends: 22436 [2021-07-13 19:04:50,661 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1396.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:04:50,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22436 states. [2021-07-13 19:04:50,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22436 to 10157. [2021-07-13 19:04:50,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10157 states, 10155 states have (on average 2.6952240275726242) internal successors, (27370), 10156 states have internal predecessors, (27370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:50,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10157 states to 10157 states and 27370 transitions. [2021-07-13 19:04:50,882 INFO L78 Accepts]: Start accepts. Automaton has 10157 states and 27370 transitions. Word has length 114 [2021-07-13 19:04:50,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:50,882 INFO L482 AbstractCegarLoop]: Abstraction has 10157 states and 27370 transitions. [2021-07-13 19:04:50,882 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:50,882 INFO L276 IsEmpty]: Start isEmpty. Operand 10157 states and 27370 transitions. [2021-07-13 19:04:50,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:04:50,893 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:50,893 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:50,893 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2021-07-13 19:04:50,893 INFO L430 AbstractCegarLoop]: === Iteration 253 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:50,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:50,894 INFO L82 PathProgramCache]: Analyzing trace with hash -448197916, now seen corresponding path program 244 times [2021-07-13 19:04:50,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:50,894 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436935410] [2021-07-13 19:04:50,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:50,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:51,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:51,210 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:51,210 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436935410] [2021-07-13 19:04:51,210 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436935410] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:51,210 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:51,210 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:04:51,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527627730] [2021-07-13 19:04:51,210 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:04:51,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:51,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:04:51,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:04:51,211 INFO L87 Difference]: Start difference. First operand 10157 states and 27370 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:51,982 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:04:52,176 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:04:52,354 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:04:52,555 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:04:52,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:52,758 INFO L93 Difference]: Finished difference Result 22276 states and 58381 transitions. [2021-07-13 19:04:52,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:04:52,758 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:04:52,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:52,787 INFO L225 Difference]: With dead ends: 22276 [2021-07-13 19:04:52,787 INFO L226 Difference]: Without dead ends: 22276 [2021-07-13 19:04:52,788 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1366.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:04:52,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22276 states. [2021-07-13 19:04:52,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22276 to 10141. [2021-07-13 19:04:52,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:53,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-07-13 19:04:53,008 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-07-13 19:04:53,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:53,008 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-07-13 19:04:53,008 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:53,008 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-07-13 19:04:53,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:04:53,019 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:53,019 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:53,020 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2021-07-13 19:04:53,020 INFO L430 AbstractCegarLoop]: === Iteration 254 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:53,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:53,020 INFO L82 PathProgramCache]: Analyzing trace with hash -1605015220, now seen corresponding path program 245 times [2021-07-13 19:04:53,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:53,020 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713778461] [2021-07-13 19:04:53,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:53,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:53,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:53,371 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:53,371 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713778461] [2021-07-13 19:04:53,371 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713778461] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:53,371 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:53,371 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:04:53,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377872636] [2021-07-13 19:04:53,372 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:04:53,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:53,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:04:53,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:04:53,372 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:54,013 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-13 19:04:54,155 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:04:54,307 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:04:54,496 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:04:54,694 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:04:54,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:54,844 INFO L93 Difference]: Finished difference Result 19427 states and 51121 transitions. [2021-07-13 19:04:54,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:04:54,845 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:04:54,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:54,872 INFO L225 Difference]: With dead ends: 19427 [2021-07-13 19:04:54,873 INFO L226 Difference]: Without dead ends: 19427 [2021-07-13 19:04:54,873 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1347.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:04:54,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19427 states. [2021-07-13 19:04:55,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19427 to 10013. [2021-07-13 19:04:55,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10013 states, 10011 states have (on average 2.6926380980920985) internal successors, (26956), 10012 states have internal predecessors, (26956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:55,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10013 states to 10013 states and 26956 transitions. [2021-07-13 19:04:55,078 INFO L78 Accepts]: Start accepts. Automaton has 10013 states and 26956 transitions. Word has length 114 [2021-07-13 19:04:55,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:55,078 INFO L482 AbstractCegarLoop]: Abstraction has 10013 states and 26956 transitions. [2021-07-13 19:04:55,078 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:55,078 INFO L276 IsEmpty]: Start isEmpty. Operand 10013 states and 26956 transitions. [2021-07-13 19:04:55,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:04:55,090 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:55,090 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:55,090 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2021-07-13 19:04:55,090 INFO L430 AbstractCegarLoop]: === Iteration 255 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:55,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:55,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1253856522, now seen corresponding path program 246 times [2021-07-13 19:04:55,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:55,090 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226334843] [2021-07-13 19:04:55,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:55,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:55,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:55,506 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:55,506 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226334843] [2021-07-13 19:04:55,506 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226334843] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:55,506 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:55,506 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:04:55,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392342788] [2021-07-13 19:04:55,506 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:04:55,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:55,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:04:55,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:04:55,507 INFO L87 Difference]: Start difference. First operand 10013 states and 26956 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:56,307 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:04:56,468 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:04:56,646 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:04:56,841 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:04:57,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:57,004 INFO L93 Difference]: Finished difference Result 17411 states and 45980 transitions. [2021-07-13 19:04:57,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:04:57,004 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:04:57,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:57,029 INFO L225 Difference]: With dead ends: 17411 [2021-07-13 19:04:57,029 INFO L226 Difference]: Without dead ends: 17411 [2021-07-13 19:04:57,030 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1333.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:04:57,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17411 states. [2021-07-13 19:04:57,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17411 to 10093. [2021-07-13 19:04:57,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10093 states, 10091 states have (on average 2.6940838370825486) internal successors, (27186), 10092 states have internal predecessors, (27186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:57,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10093 states to 10093 states and 27186 transitions. [2021-07-13 19:04:57,219 INFO L78 Accepts]: Start accepts. Automaton has 10093 states and 27186 transitions. Word has length 114 [2021-07-13 19:04:57,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:57,220 INFO L482 AbstractCegarLoop]: Abstraction has 10093 states and 27186 transitions. [2021-07-13 19:04:57,220 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:57,220 INFO L276 IsEmpty]: Start isEmpty. Operand 10093 states and 27186 transitions. [2021-07-13 19:04:57,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:04:57,233 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:57,233 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:57,233 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2021-07-13 19:04:57,233 INFO L430 AbstractCegarLoop]: === Iteration 256 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:57,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:57,234 INFO L82 PathProgramCache]: Analyzing trace with hash -831522424, now seen corresponding path program 247 times [2021-07-13 19:04:57,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:57,234 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944239527] [2021-07-13 19:04:57,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:57,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:57,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:57,552 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:57,552 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944239527] [2021-07-13 19:04:57,552 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944239527] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:57,552 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:57,552 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:04:57,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137763555] [2021-07-13 19:04:57,553 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:04:57,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:57,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:04:57,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:04:57,553 INFO L87 Difference]: Start difference. First operand 10093 states and 27186 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:58,104 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-07-13 19:04:58,388 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:04:58,549 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:04:58,742 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:04:58,935 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:04:59,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:59,108 INFO L93 Difference]: Finished difference Result 18224 states and 47784 transitions. [2021-07-13 19:04:59,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:04:59,109 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:04:59,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:59,136 INFO L225 Difference]: With dead ends: 18224 [2021-07-13 19:04:59,137 INFO L226 Difference]: Without dead ends: 18224 [2021-07-13 19:04:59,137 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1376.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:04:59,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18224 states. [2021-07-13 19:04:59,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18224 to 10077. [2021-07-13 19:04:59,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10077 states, 10075 states have (on average 2.6937965260545904) internal successors, (27140), 10076 states have internal predecessors, (27140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:59,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10077 states to 10077 states and 27140 transitions. [2021-07-13 19:04:59,333 INFO L78 Accepts]: Start accepts. Automaton has 10077 states and 27140 transitions. Word has length 114 [2021-07-13 19:04:59,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:59,333 INFO L482 AbstractCegarLoop]: Abstraction has 10077 states and 27140 transitions. [2021-07-13 19:04:59,333 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:59,333 INFO L276 IsEmpty]: Start isEmpty. Operand 10077 states and 27140 transitions. [2021-07-13 19:04:59,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:04:59,345 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:59,345 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:59,345 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2021-07-13 19:04:59,345 INFO L430 AbstractCegarLoop]: === Iteration 257 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:59,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:59,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1105747222, now seen corresponding path program 248 times [2021-07-13 19:04:59,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:59,345 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66012379] [2021-07-13 19:04:59,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:59,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:59,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:59,657 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:59,657 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66012379] [2021-07-13 19:04:59,657 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66012379] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:59,657 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:59,657 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:04:59,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636300427] [2021-07-13 19:04:59,657 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:04:59,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:59,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:04:59,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:04:59,658 INFO L87 Difference]: Start difference. First operand 10077 states and 27140 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:00,436 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:05:00,595 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:05:00,779 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:05:01,001 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:05:01,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:01,162 INFO L93 Difference]: Finished difference Result 21337 states and 55734 transitions. [2021-07-13 19:05:01,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:05:01,163 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:05:01,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:01,191 INFO L225 Difference]: With dead ends: 21337 [2021-07-13 19:05:01,191 INFO L226 Difference]: Without dead ends: 21337 [2021-07-13 19:05:01,192 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1374.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:05:01,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21337 states. [2021-07-13 19:05:01,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21337 to 10093. [2021-07-13 19:05:01,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10093 states, 10091 states have (on average 2.6940838370825486) internal successors, (27186), 10092 states have internal predecessors, (27186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:01,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10093 states to 10093 states and 27186 transitions. [2021-07-13 19:05:01,400 INFO L78 Accepts]: Start accepts. Automaton has 10093 states and 27186 transitions. Word has length 114 [2021-07-13 19:05:01,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:01,400 INFO L482 AbstractCegarLoop]: Abstraction has 10093 states and 27186 transitions. [2021-07-13 19:05:01,400 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:01,400 INFO L276 IsEmpty]: Start isEmpty. Operand 10093 states and 27186 transitions. [2021-07-13 19:05:01,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:05:01,412 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:01,412 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:01,412 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2021-07-13 19:05:01,412 INFO L430 AbstractCegarLoop]: === Iteration 258 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:01,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:01,412 INFO L82 PathProgramCache]: Analyzing trace with hash -1354294202, now seen corresponding path program 249 times [2021-07-13 19:05:01,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:01,412 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942610705] [2021-07-13 19:05:01,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:01,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:01,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:01,717 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:01,717 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942610705] [2021-07-13 19:05:01,717 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942610705] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:01,717 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:01,717 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:05:01,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200777057] [2021-07-13 19:05:01,717 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:05:01,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:01,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:05:01,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:05:01,718 INFO L87 Difference]: Start difference. First operand 10093 states and 27186 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:02,496 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:05:02,657 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:05:02,831 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:05:03,027 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:05:03,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:03,173 INFO L93 Difference]: Finished difference Result 18402 states and 48260 transitions. [2021-07-13 19:05:03,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:05:03,174 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:05:03,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:03,202 INFO L225 Difference]: With dead ends: 18402 [2021-07-13 19:05:03,202 INFO L226 Difference]: Without dead ends: 18402 [2021-07-13 19:05:03,202 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1333.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:05:03,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18402 states. [2021-07-13 19:05:03,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18402 to 10061. [2021-07-13 19:05:03,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10061 states, 10059 states have (on average 2.6935083010239587) internal successors, (27094), 10060 states have internal predecessors, (27094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:03,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10061 states to 10061 states and 27094 transitions. [2021-07-13 19:05:03,517 INFO L78 Accepts]: Start accepts. Automaton has 10061 states and 27094 transitions. Word has length 114 [2021-07-13 19:05:03,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:03,517 INFO L482 AbstractCegarLoop]: Abstraction has 10061 states and 27094 transitions. [2021-07-13 19:05:03,517 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:03,517 INFO L276 IsEmpty]: Start isEmpty. Operand 10061 states and 27094 transitions. [2021-07-13 19:05:03,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:05:03,530 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:03,530 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:03,530 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2021-07-13 19:05:03,530 INFO L430 AbstractCegarLoop]: === Iteration 259 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:03,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:03,530 INFO L82 PathProgramCache]: Analyzing trace with hash 124168584, now seen corresponding path program 250 times [2021-07-13 19:05:03,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:03,531 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077201840] [2021-07-13 19:05:03,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:03,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:03,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:03,851 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:03,851 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077201840] [2021-07-13 19:05:03,851 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077201840] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:03,851 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:03,851 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:05:03,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159740127] [2021-07-13 19:05:03,851 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:05:03,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:03,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:05:03,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:05:03,852 INFO L87 Difference]: Start difference. First operand 10061 states and 27094 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:04,639 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:05:04,817 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:05:05,009 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:05:05,208 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:05:05,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:05,398 INFO L93 Difference]: Finished difference Result 21847 states and 57126 transitions. [2021-07-13 19:05:05,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:05:05,398 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:05:05,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:05,432 INFO L225 Difference]: With dead ends: 21847 [2021-07-13 19:05:05,432 INFO L226 Difference]: Without dead ends: 21847 [2021-07-13 19:05:05,433 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1353.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:05:05,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21847 states. [2021-07-13 19:05:05,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21847 to 10109. [2021-07-13 19:05:05,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 10107 states have (on average 2.6943702384486) internal successors, (27232), 10108 states have internal predecessors, (27232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:05,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 27232 transitions. [2021-07-13 19:05:05,669 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 27232 transitions. Word has length 114 [2021-07-13 19:05:05,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:05,669 INFO L482 AbstractCegarLoop]: Abstraction has 10109 states and 27232 transitions. [2021-07-13 19:05:05,669 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:05,669 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 27232 transitions. [2021-07-13 19:05:05,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:05:05,680 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:05,681 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:05,681 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2021-07-13 19:05:05,681 INFO L430 AbstractCegarLoop]: === Iteration 260 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:05,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:05,681 INFO L82 PathProgramCache]: Analyzing trace with hash -124378396, now seen corresponding path program 251 times [2021-07-13 19:05:05,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:05,681 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975171144] [2021-07-13 19:05:05,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:05,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:05,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:05,999 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:05,999 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975171144] [2021-07-13 19:05:05,999 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975171144] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:05,999 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:05,999 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:05:05,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655845089] [2021-07-13 19:05:05,999 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:05:06,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:06,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:05:06,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:05:06,000 INFO L87 Difference]: Start difference. First operand 10109 states and 27232 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:06,807 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:05:06,985 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:05:07,163 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:05:07,362 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:05:07,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:07,534 INFO L93 Difference]: Finished difference Result 21687 states and 56724 transitions. [2021-07-13 19:05:07,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:05:07,534 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:05:07,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:07,565 INFO L225 Difference]: With dead ends: 21687 [2021-07-13 19:05:07,565 INFO L226 Difference]: Without dead ends: 21687 [2021-07-13 19:05:07,565 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1335.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:05:07,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21687 states. [2021-07-13 19:05:07,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21687 to 10093. [2021-07-13 19:05:07,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10093 states, 10091 states have (on average 2.6940838370825486) internal successors, (27186), 10092 states have internal predecessors, (27186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:07,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10093 states to 10093 states and 27186 transitions. [2021-07-13 19:05:07,789 INFO L78 Accepts]: Start accepts. Automaton has 10093 states and 27186 transitions. Word has length 114 [2021-07-13 19:05:07,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:07,789 INFO L482 AbstractCegarLoop]: Abstraction has 10093 states and 27186 transitions. [2021-07-13 19:05:07,789 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:07,789 INFO L276 IsEmpty]: Start isEmpty. Operand 10093 states and 27186 transitions. [2021-07-13 19:05:07,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:05:07,801 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:07,801 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:07,802 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2021-07-13 19:05:07,802 INFO L430 AbstractCegarLoop]: === Iteration 261 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:07,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:07,802 INFO L82 PathProgramCache]: Analyzing trace with hash -1281195700, now seen corresponding path program 252 times [2021-07-13 19:05:07,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:07,802 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672344051] [2021-07-13 19:05:07,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:07,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:08,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:08,133 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:08,133 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672344051] [2021-07-13 19:05:08,133 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672344051] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:08,133 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:08,133 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:05:08,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879902550] [2021-07-13 19:05:08,133 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:05:08,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:08,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:05:08,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:05:08,133 INFO L87 Difference]: Start difference. First operand 10093 states and 27186 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:08,773 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-13 19:05:08,917 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:05:09,101 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:05:09,297 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:05:09,495 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:05:09,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:09,655 INFO L93 Difference]: Finished difference Result 18838 states and 49464 transitions. [2021-07-13 19:05:09,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:05:09,655 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:05:09,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:09,683 INFO L225 Difference]: With dead ends: 18838 [2021-07-13 19:05:09,683 INFO L226 Difference]: Without dead ends: 18838 [2021-07-13 19:05:09,684 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1374.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:05:09,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18838 states. [2021-07-13 19:05:09,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18838 to 10029. [2021-07-13 19:05:09,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10029 states, 10027 states have (on average 2.6929290914530766) internal successors, (27002), 10028 states have internal predecessors, (27002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:09,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10029 states to 10029 states and 27002 transitions. [2021-07-13 19:05:09,886 INFO L78 Accepts]: Start accepts. Automaton has 10029 states and 27002 transitions. Word has length 114 [2021-07-13 19:05:09,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:09,886 INFO L482 AbstractCegarLoop]: Abstraction has 10029 states and 27002 transitions. [2021-07-13 19:05:09,886 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:09,886 INFO L276 IsEmpty]: Start isEmpty. Operand 10029 states and 27002 transitions. [2021-07-13 19:05:09,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:05:09,898 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:09,898 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:09,898 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2021-07-13 19:05:09,898 INFO L430 AbstractCegarLoop]: === Iteration 262 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:09,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:09,898 INFO L82 PathProgramCache]: Analyzing trace with hash -382834296, now seen corresponding path program 253 times [2021-07-13 19:05:09,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:09,898 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676705450] [2021-07-13 19:05:09,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:09,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:10,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:10,236 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:10,236 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676705450] [2021-07-13 19:05:10,236 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676705450] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:10,236 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:10,236 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:05:10,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28683488] [2021-07-13 19:05:10,236 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:05:10,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:10,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:05:10,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:05:10,237 INFO L87 Difference]: Start difference. First operand 10029 states and 27002 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:11,007 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:05:11,179 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:05:11,366 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:05:11,561 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:05:11,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:11,717 INFO L93 Difference]: Finished difference Result 17502 states and 46059 transitions. [2021-07-13 19:05:11,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:05:11,718 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:05:11,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:11,743 INFO L225 Difference]: With dead ends: 17502 [2021-07-13 19:05:11,743 INFO L226 Difference]: Without dead ends: 17502 [2021-07-13 19:05:11,743 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1371.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:05:11,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17502 states. [2021-07-13 19:05:11,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17502 to 10093. [2021-07-13 19:05:11,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10093 states, 10091 states have (on average 2.6940838370825486) internal successors, (27186), 10092 states have internal predecessors, (27186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:11,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10093 states to 10093 states and 27186 transitions. [2021-07-13 19:05:11,975 INFO L78 Accepts]: Start accepts. Automaton has 10093 states and 27186 transitions. Word has length 114 [2021-07-13 19:05:11,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:11,975 INFO L482 AbstractCegarLoop]: Abstraction has 10093 states and 27186 transitions. [2021-07-13 19:05:11,975 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:11,975 INFO L276 IsEmpty]: Start isEmpty. Operand 10093 states and 27186 transitions. [2021-07-13 19:05:11,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:05:11,987 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:11,988 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:11,988 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2021-07-13 19:05:11,988 INFO L430 AbstractCegarLoop]: === Iteration 263 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:11,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:11,988 INFO L82 PathProgramCache]: Analyzing trace with hash -631381276, now seen corresponding path program 254 times [2021-07-13 19:05:11,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:11,988 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686922365] [2021-07-13 19:05:11,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:12,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:12,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:12,318 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:12,318 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686922365] [2021-07-13 19:05:12,318 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686922365] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:12,318 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:12,318 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:05:12,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515597928] [2021-07-13 19:05:12,319 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:05:12,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:12,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:05:12,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:05:12,319 INFO L87 Difference]: Start difference. First operand 10093 states and 27186 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:13,102 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:05:13,281 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:05:13,462 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:05:13,664 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:05:13,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:13,831 INFO L93 Difference]: Finished difference Result 17342 states and 45657 transitions. [2021-07-13 19:05:13,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:05:13,831 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:05:13,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:13,857 INFO L225 Difference]: With dead ends: 17342 [2021-07-13 19:05:13,857 INFO L226 Difference]: Without dead ends: 17342 [2021-07-13 19:05:13,858 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1358.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:05:13,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17342 states. [2021-07-13 19:05:14,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17342 to 10077. [2021-07-13 19:05:14,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10077 states, 10075 states have (on average 2.6937965260545904) internal successors, (27140), 10076 states have internal predecessors, (27140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:14,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10077 states to 10077 states and 27140 transitions. [2021-07-13 19:05:14,052 INFO L78 Accepts]: Start accepts. Automaton has 10077 states and 27140 transitions. Word has length 114 [2021-07-13 19:05:14,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:14,052 INFO L482 AbstractCegarLoop]: Abstraction has 10077 states and 27140 transitions. [2021-07-13 19:05:14,052 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:14,052 INFO L276 IsEmpty]: Start isEmpty. Operand 10077 states and 27140 transitions. [2021-07-13 19:05:14,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:05:14,063 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:14,063 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:14,063 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2021-07-13 19:05:14,063 INFO L430 AbstractCegarLoop]: === Iteration 264 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:14,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:14,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1788198580, now seen corresponding path program 255 times [2021-07-13 19:05:14,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:14,064 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533721694] [2021-07-13 19:05:14,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:14,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:14,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:14,464 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:14,464 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533721694] [2021-07-13 19:05:14,464 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533721694] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:14,464 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:14,464 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:05:14,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565403337] [2021-07-13 19:05:14,465 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:05:14,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:14,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:05:14,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:05:14,465 INFO L87 Difference]: Start difference. First operand 10077 states and 27140 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:15,249 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:05:15,399 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:05:15,593 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:05:15,795 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:05:15,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:15,963 INFO L93 Difference]: Finished difference Result 17630 states and 46485 transitions. [2021-07-13 19:05:15,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:05:15,964 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:05:15,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:15,990 INFO L225 Difference]: With dead ends: 17630 [2021-07-13 19:05:15,990 INFO L226 Difference]: Without dead ends: 17630 [2021-07-13 19:05:15,990 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1411.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:05:16,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17630 states. [2021-07-13 19:05:16,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17630 to 10045. [2021-07-13 19:05:16,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10045 states, 10043 states have (on average 2.6932191576222246) internal successors, (27048), 10044 states have internal predecessors, (27048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:16,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10045 states to 10045 states and 27048 transitions. [2021-07-13 19:05:16,186 INFO L78 Accepts]: Start accepts. Automaton has 10045 states and 27048 transitions. Word has length 114 [2021-07-13 19:05:16,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:16,186 INFO L482 AbstractCegarLoop]: Abstraction has 10045 states and 27048 transitions. [2021-07-13 19:05:16,186 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:16,186 INFO L276 IsEmpty]: Start isEmpty. Operand 10045 states and 27048 transitions. [2021-07-13 19:05:16,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:05:16,198 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:16,198 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:16,198 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2021-07-13 19:05:16,198 INFO L430 AbstractCegarLoop]: === Iteration 265 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:16,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:16,198 INFO L82 PathProgramCache]: Analyzing trace with hash -80015442, now seen corresponding path program 256 times [2021-07-13 19:05:16,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:16,198 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884782772] [2021-07-13 19:05:16,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:16,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:16,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:16,535 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:16,535 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884782772] [2021-07-13 19:05:16,535 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884782772] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:16,535 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:16,536 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:05:16,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492034766] [2021-07-13 19:05:16,536 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:05:16,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:16,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:05:16,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:05:16,536 INFO L87 Difference]: Start difference. First operand 10045 states and 27048 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:17,318 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-13 19:05:17,495 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:05:17,687 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:05:17,886 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:05:18,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:18,029 INFO L93 Difference]: Finished difference Result 14345 states and 38021 transitions. [2021-07-13 19:05:18,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:05:18,030 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:05:18,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:18,054 INFO L225 Difference]: With dead ends: 14345 [2021-07-13 19:05:18,054 INFO L226 Difference]: Without dead ends: 14345 [2021-07-13 19:05:18,054 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1368.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:05:18,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14345 states. [2021-07-13 19:05:18,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14345 to 9973. [2021-07-13 19:05:18,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9973 states, 9971 states have (on average 2.6910039113428943) internal successors, (26832), 9972 states have internal predecessors, (26832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:18,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9973 states to 9973 states and 26832 transitions. [2021-07-13 19:05:18,214 INFO L78 Accepts]: Start accepts. Automaton has 9973 states and 26832 transitions. Word has length 114 [2021-07-13 19:05:18,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:18,214 INFO L482 AbstractCegarLoop]: Abstraction has 9973 states and 26832 transitions. [2021-07-13 19:05:18,214 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:18,215 INFO L276 IsEmpty]: Start isEmpty. Operand 9973 states and 26832 transitions. [2021-07-13 19:05:18,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:05:18,225 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:18,226 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:18,226 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2021-07-13 19:05:18,226 INFO L430 AbstractCegarLoop]: === Iteration 266 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:18,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:18,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1987254184, now seen corresponding path program 257 times [2021-07-13 19:05:18,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:18,226 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652505082] [2021-07-13 19:05:18,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:18,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:18,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:18,553 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:18,553 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652505082] [2021-07-13 19:05:18,553 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652505082] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:18,553 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:18,553 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:05:18,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310941285] [2021-07-13 19:05:18,553 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:05:18,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:18,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:05:18,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:05:18,554 INFO L87 Difference]: Start difference. First operand 9973 states and 26832 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:19,339 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:05:19,517 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:05:19,691 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:05:19,894 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:05:20,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:20,067 INFO L93 Difference]: Finished difference Result 21514 states and 57057 transitions. [2021-07-13 19:05:20,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:05:20,067 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:05:20,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:20,099 INFO L225 Difference]: With dead ends: 21514 [2021-07-13 19:05:20,099 INFO L226 Difference]: Without dead ends: 21514 [2021-07-13 19:05:20,100 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1352.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:05:20,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21514 states. [2021-07-13 19:05:20,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21514 to 10117. [2021-07-13 19:05:20,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10117 states, 10115 states have (on average 2.6936233316856155) internal successors, (27246), 10116 states have internal predecessors, (27246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:20,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10117 states to 10117 states and 27246 transitions. [2021-07-13 19:05:20,365 INFO L78 Accepts]: Start accepts. Automaton has 10117 states and 27246 transitions. Word has length 114 [2021-07-13 19:05:20,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:20,366 INFO L482 AbstractCegarLoop]: Abstraction has 10117 states and 27246 transitions. [2021-07-13 19:05:20,366 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:20,366 INFO L276 IsEmpty]: Start isEmpty. Operand 10117 states and 27246 transitions. [2021-07-13 19:05:20,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:05:20,378 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:20,378 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:20,378 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2021-07-13 19:05:20,378 INFO L430 AbstractCegarLoop]: === Iteration 267 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:20,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:20,378 INFO L82 PathProgramCache]: Analyzing trace with hash -98124762, now seen corresponding path program 258 times [2021-07-13 19:05:20,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:20,378 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247619323] [2021-07-13 19:05:20,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:20,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:20,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:20,704 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:20,704 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247619323] [2021-07-13 19:05:20,704 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247619323] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:20,704 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:20,704 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:05:20,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113936105] [2021-07-13 19:05:20,704 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:05:20,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:20,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:05:20,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:05:20,705 INFO L87 Difference]: Start difference. First operand 10117 states and 27246 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:21,470 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:05:21,643 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:05:21,828 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:05:22,023 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:05:22,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:22,186 INFO L93 Difference]: Finished difference Result 21092 states and 55543 transitions. [2021-07-13 19:05:22,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:05:22,186 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:05:22,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:22,216 INFO L225 Difference]: With dead ends: 21092 [2021-07-13 19:05:22,216 INFO L226 Difference]: Without dead ends: 21092 [2021-07-13 19:05:22,217 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1357.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:05:22,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21092 states. [2021-07-13 19:05:22,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21092 to 10101. [2021-07-13 19:05:22,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10101 states, 10099 states have (on average 2.693335973858798) internal successors, (27200), 10100 states have internal predecessors, (27200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:22,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10101 states to 10101 states and 27200 transitions. [2021-07-13 19:05:22,433 INFO L78 Accepts]: Start accepts. Automaton has 10101 states and 27200 transitions. Word has length 114 [2021-07-13 19:05:22,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:22,433 INFO L482 AbstractCegarLoop]: Abstraction has 10101 states and 27200 transitions. [2021-07-13 19:05:22,433 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:22,433 INFO L276 IsEmpty]: Start isEmpty. Operand 10101 states and 27200 transitions. [2021-07-13 19:05:22,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:05:22,445 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:22,445 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:22,445 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2021-07-13 19:05:22,445 INFO L430 AbstractCegarLoop]: === Iteration 268 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:22,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:22,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1737238136, now seen corresponding path program 259 times [2021-07-13 19:05:22,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:22,445 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438632573] [2021-07-13 19:05:22,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:22,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:22,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:22,828 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:22,828 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438632573] [2021-07-13 19:05:22,828 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438632573] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:22,828 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:22,828 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:05:22,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462978992] [2021-07-13 19:05:22,828 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:05:22,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:22,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:05:22,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:05:22,829 INFO L87 Difference]: Start difference. First operand 10101 states and 27200 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:23,617 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:05:23,770 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:05:23,960 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:05:24,165 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:05:24,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:24,327 INFO L93 Difference]: Finished difference Result 18570 states and 49036 transitions. [2021-07-13 19:05:24,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:05:24,327 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:05:24,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:24,353 INFO L225 Difference]: With dead ends: 18570 [2021-07-13 19:05:24,353 INFO L226 Difference]: Without dead ends: 18570 [2021-07-13 19:05:24,354 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1395.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:05:24,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18570 states. [2021-07-13 19:05:24,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18570 to 10069. [2021-07-13 19:05:24,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10069 states, 10067 states have (on average 2.69275851792987) internal successors, (27108), 10068 states have internal predecessors, (27108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:24,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10069 states to 10069 states and 27108 transitions. [2021-07-13 19:05:24,560 INFO L78 Accepts]: Start accepts. Automaton has 10069 states and 27108 transitions. Word has length 114 [2021-07-13 19:05:24,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:24,560 INFO L482 AbstractCegarLoop]: Abstraction has 10069 states and 27108 transitions. [2021-07-13 19:05:24,560 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:24,560 INFO L276 IsEmpty]: Start isEmpty. Operand 10069 states and 27108 transitions. [2021-07-13 19:05:24,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:05:24,572 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:24,572 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:24,572 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2021-07-13 19:05:24,572 INFO L430 AbstractCegarLoop]: === Iteration 269 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:24,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:24,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1438837462, now seen corresponding path program 260 times [2021-07-13 19:05:24,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:24,572 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290485016] [2021-07-13 19:05:24,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:24,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:24,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:24,880 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:24,880 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290485016] [2021-07-13 19:05:24,880 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290485016] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:24,880 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:24,881 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:05:24,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719922188] [2021-07-13 19:05:24,881 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:05:24,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:24,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:05:24,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:05:24,881 INFO L87 Difference]: Start difference. First operand 10069 states and 27108 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:25,549 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-13 19:05:25,707 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:05:25,866 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:05:26,041 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:05:26,239 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:05:26,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:26,417 INFO L93 Difference]: Finished difference Result 22132 states and 58084 transitions. [2021-07-13 19:05:26,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:05:26,418 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:05:26,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:26,449 INFO L225 Difference]: With dead ends: 22132 [2021-07-13 19:05:26,450 INFO L226 Difference]: Without dead ends: 22132 [2021-07-13 19:05:26,450 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1361.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:05:26,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22132 states. [2021-07-13 19:05:26,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22132 to 10101. [2021-07-13 19:05:26,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10101 states, 10099 states have (on average 2.693335973858798) internal successors, (27200), 10100 states have internal predecessors, (27200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:26,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10101 states to 10101 states and 27200 transitions. [2021-07-13 19:05:26,679 INFO L78 Accepts]: Start accepts. Automaton has 10101 states and 27200 transitions. Word has length 114 [2021-07-13 19:05:26,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:26,679 INFO L482 AbstractCegarLoop]: Abstraction has 10101 states and 27200 transitions. [2021-07-13 19:05:26,679 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:26,679 INFO L276 IsEmpty]: Start isEmpty. Operand 10101 states and 27200 transitions. [2021-07-13 19:05:26,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:05:26,691 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:26,691 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:26,691 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2021-07-13 19:05:26,691 INFO L430 AbstractCegarLoop]: === Iteration 270 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:26,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:26,691 INFO L82 PathProgramCache]: Analyzing trace with hash 770750888, now seen corresponding path program 261 times [2021-07-13 19:05:26,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:26,692 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152005818] [2021-07-13 19:05:26,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:26,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:27,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:27,041 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:27,042 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152005818] [2021-07-13 19:05:27,042 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152005818] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:27,042 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:27,042 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:05:27,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247564671] [2021-07-13 19:05:27,042 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:05:27,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:27,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:05:27,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:05:27,042 INFO L87 Difference]: Start difference. First operand 10101 states and 27200 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:27,687 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-07-13 19:05:27,848 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:05:28,009 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:05:28,202 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:05:28,431 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:05:28,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:28,617 INFO L93 Difference]: Finished difference Result 22945 states and 59888 transitions. [2021-07-13 19:05:28,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:05:28,618 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:05:28,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:28,653 INFO L225 Difference]: With dead ends: 22945 [2021-07-13 19:05:28,654 INFO L226 Difference]: Without dead ends: 22945 [2021-07-13 19:05:28,654 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1408.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:05:28,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22945 states. [2021-07-13 19:05:28,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22945 to 10085. [2021-07-13 19:05:28,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10085 states, 10083 states have (on average 2.6930477040563323) internal successors, (27154), 10084 states have internal predecessors, (27154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:28,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10085 states to 10085 states and 27154 transitions. [2021-07-13 19:05:28,912 INFO L78 Accepts]: Start accepts. Automaton has 10085 states and 27154 transitions. Word has length 114 [2021-07-13 19:05:28,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:28,912 INFO L482 AbstractCegarLoop]: Abstraction has 10085 states and 27154 transitions. [2021-07-13 19:05:28,912 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:28,912 INFO L276 IsEmpty]: Start isEmpty. Operand 10085 states and 27154 transitions. [2021-07-13 19:05:28,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:05:28,924 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:28,924 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:28,924 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2021-07-13 19:05:28,925 INFO L430 AbstractCegarLoop]: === Iteration 271 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:28,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:28,925 INFO L82 PathProgramCache]: Analyzing trace with hash 496526090, now seen corresponding path program 262 times [2021-07-13 19:05:28,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:28,925 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243346318] [2021-07-13 19:05:28,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:28,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:29,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:29,236 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:29,236 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243346318] [2021-07-13 19:05:29,236 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243346318] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:29,236 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:29,236 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:05:29,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356516308] [2021-07-13 19:05:29,236 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:05:29,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:29,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:05:29,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:05:29,237 INFO L87 Difference]: Start difference. First operand 10085 states and 27154 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:30,005 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:05:30,162 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:05:30,344 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:05:30,537 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:05:30,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:30,701 INFO L93 Difference]: Finished difference Result 22271 states and 58301 transitions. [2021-07-13 19:05:30,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:05:30,701 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:05:30,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:30,734 INFO L225 Difference]: With dead ends: 22271 [2021-07-13 19:05:30,734 INFO L226 Difference]: Without dead ends: 22271 [2021-07-13 19:05:30,734 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1338.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:05:30,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22271 states. [2021-07-13 19:05:30,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22271 to 10101. [2021-07-13 19:05:30,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10101 states, 10099 states have (on average 2.693335973858798) internal successors, (27200), 10100 states have internal predecessors, (27200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:31,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10101 states to 10101 states and 27200 transitions. [2021-07-13 19:05:31,008 INFO L78 Accepts]: Start accepts. Automaton has 10101 states and 27200 transitions. Word has length 114 [2021-07-13 19:05:31,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:31,009 INFO L482 AbstractCegarLoop]: Abstraction has 10101 states and 27200 transitions. [2021-07-13 19:05:31,009 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:31,009 INFO L276 IsEmpty]: Start isEmpty. Operand 10101 states and 27200 transitions. [2021-07-13 19:05:31,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:05:31,022 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:31,022 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:31,022 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2021-07-13 19:05:31,022 INFO L430 AbstractCegarLoop]: === Iteration 272 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:31,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:31,022 INFO L82 PathProgramCache]: Analyzing trace with hash 247979110, now seen corresponding path program 263 times [2021-07-13 19:05:31,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:31,022 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936665429] [2021-07-13 19:05:31,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:31,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:31,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:31,329 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:31,329 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936665429] [2021-07-13 19:05:31,329 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936665429] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:31,329 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:31,329 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:05:31,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702047886] [2021-07-13 19:05:31,329 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:05:31,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:31,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:05:31,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:05:31,330 INFO L87 Difference]: Start difference. First operand 10101 states and 27200 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:32,120 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:05:32,280 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:05:32,455 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:05:32,651 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:05:32,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:32,800 INFO L93 Difference]: Finished difference Result 19336 states and 50827 transitions. [2021-07-13 19:05:32,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:05:32,801 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:05:32,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:32,828 INFO L225 Difference]: With dead ends: 19336 [2021-07-13 19:05:32,829 INFO L226 Difference]: Without dead ends: 19336 [2021-07-13 19:05:32,829 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1323.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:05:32,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19336 states. [2021-07-13 19:05:33,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19336 to 10037. [2021-07-13 19:05:33,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10037 states, 10035 states have (on average 2.692177379172895) internal successors, (27016), 10036 states have internal predecessors, (27016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:33,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10037 states to 10037 states and 27016 transitions. [2021-07-13 19:05:33,027 INFO L78 Accepts]: Start accepts. Automaton has 10037 states and 27016 transitions. Word has length 114 [2021-07-13 19:05:33,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:33,027 INFO L482 AbstractCegarLoop]: Abstraction has 10037 states and 27016 transitions. [2021-07-13 19:05:33,027 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:33,027 INFO L276 IsEmpty]: Start isEmpty. Operand 10037 states and 27016 transitions. [2021-07-13 19:05:33,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:05:33,038 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:33,038 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:33,038 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2021-07-13 19:05:33,039 INFO L430 AbstractCegarLoop]: === Iteration 273 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:33,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:33,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1128327560, now seen corresponding path program 264 times [2021-07-13 19:05:33,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:33,039 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381095551] [2021-07-13 19:05:33,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:33,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:33,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:33,350 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:33,350 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381095551] [2021-07-13 19:05:33,350 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381095551] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:33,350 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:33,350 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:05:33,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241753602] [2021-07-13 19:05:33,350 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:05:33,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:33,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:05:33,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:05:33,351 INFO L87 Difference]: Start difference. First operand 10037 states and 27016 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:34,200 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:05:34,359 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:05:34,537 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:05:34,733 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:05:34,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:34,898 INFO L93 Difference]: Finished difference Result 18508 states and 48890 transitions. [2021-07-13 19:05:34,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:05:34,898 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:05:34,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:34,925 INFO L225 Difference]: With dead ends: 18508 [2021-07-13 19:05:34,925 INFO L226 Difference]: Without dead ends: 18508 [2021-07-13 19:05:34,926 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1366.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:05:34,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18508 states. [2021-07-13 19:05:35,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18508 to 10101. [2021-07-13 19:05:35,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10101 states, 10099 states have (on average 2.693335973858798) internal successors, (27200), 10100 states have internal predecessors, (27200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:35,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10101 states to 10101 states and 27200 transitions. [2021-07-13 19:05:35,131 INFO L78 Accepts]: Start accepts. Automaton has 10101 states and 27200 transitions. Word has length 114 [2021-07-13 19:05:35,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:35,131 INFO L482 AbstractCegarLoop]: Abstraction has 10101 states and 27200 transitions. [2021-07-13 19:05:35,131 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:35,131 INFO L276 IsEmpty]: Start isEmpty. Operand 10101 states and 27200 transitions. [2021-07-13 19:05:35,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:05:35,144 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:35,144 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:35,144 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2021-07-13 19:05:35,144 INFO L430 AbstractCegarLoop]: === Iteration 274 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:35,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:35,144 INFO L82 PathProgramCache]: Analyzing trace with hash -957051386, now seen corresponding path program 265 times [2021-07-13 19:05:35,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:35,144 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783862732] [2021-07-13 19:05:35,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:35,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:35,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:35,458 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:35,458 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783862732] [2021-07-13 19:05:35,458 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783862732] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:35,458 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:35,458 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:05:35,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392619788] [2021-07-13 19:05:35,458 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:05:35,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:35,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:05:35,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:05:35,459 INFO L87 Difference]: Start difference. First operand 10101 states and 27200 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:36,288 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:05:36,446 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:05:36,671 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:05:36,864 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:05:37,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:37,036 INFO L93 Difference]: Finished difference Result 19321 states and 50694 transitions. [2021-07-13 19:05:37,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:05:37,036 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:05:37,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:37,064 INFO L225 Difference]: With dead ends: 19321 [2021-07-13 19:05:37,064 INFO L226 Difference]: Without dead ends: 19321 [2021-07-13 19:05:37,064 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1389.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:05:37,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19321 states. [2021-07-13 19:05:37,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19321 to 10085. [2021-07-13 19:05:37,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10085 states, 10083 states have (on average 2.6930477040563323) internal successors, (27154), 10084 states have internal predecessors, (27154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:37,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10085 states to 10085 states and 27154 transitions. [2021-07-13 19:05:37,271 INFO L78 Accepts]: Start accepts. Automaton has 10085 states and 27154 transitions. Word has length 114 [2021-07-13 19:05:37,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:37,271 INFO L482 AbstractCegarLoop]: Abstraction has 10085 states and 27154 transitions. [2021-07-13 19:05:37,271 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:37,271 INFO L276 IsEmpty]: Start isEmpty. Operand 10085 states and 27154 transitions. [2021-07-13 19:05:37,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:05:37,283 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:37,283 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:37,283 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2021-07-13 19:05:37,283 INFO L430 AbstractCegarLoop]: === Iteration 275 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:37,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:37,283 INFO L82 PathProgramCache]: Analyzing trace with hash -1231276184, now seen corresponding path program 266 times [2021-07-13 19:05:37,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:37,283 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519602516] [2021-07-13 19:05:37,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:37,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:37,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:37,624 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:37,624 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519602516] [2021-07-13 19:05:37,624 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519602516] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:37,624 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:37,624 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:05:37,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123654390] [2021-07-13 19:05:37,624 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:05:37,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:37,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:05:37,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:05:37,625 INFO L87 Difference]: Start difference. First operand 10085 states and 27154 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:38,421 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:05:38,583 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:05:38,771 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:05:38,968 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:05:39,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:39,158 INFO L93 Difference]: Finished difference Result 22434 states and 58644 transitions. [2021-07-13 19:05:39,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:05:39,159 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:05:39,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:39,194 INFO L225 Difference]: With dead ends: 22434 [2021-07-13 19:05:39,194 INFO L226 Difference]: Without dead ends: 22434 [2021-07-13 19:05:39,194 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1352.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:05:39,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22434 states. [2021-07-13 19:05:39,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22434 to 10101. [2021-07-13 19:05:39,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10101 states, 10099 states have (on average 2.693335973858798) internal successors, (27200), 10100 states have internal predecessors, (27200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:39,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10101 states to 10101 states and 27200 transitions. [2021-07-13 19:05:39,476 INFO L78 Accepts]: Start accepts. Automaton has 10101 states and 27200 transitions. Word has length 114 [2021-07-13 19:05:39,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:39,476 INFO L482 AbstractCegarLoop]: Abstraction has 10101 states and 27200 transitions. [2021-07-13 19:05:39,476 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:39,476 INFO L276 IsEmpty]: Start isEmpty. Operand 10101 states and 27200 transitions. [2021-07-13 19:05:39,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:05:39,488 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:39,488 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:39,488 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2021-07-13 19:05:39,488 INFO L430 AbstractCegarLoop]: === Iteration 276 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:39,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:39,488 INFO L82 PathProgramCache]: Analyzing trace with hash -1479823164, now seen corresponding path program 267 times [2021-07-13 19:05:39,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:39,488 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042468175] [2021-07-13 19:05:39,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:39,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:39,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:39,819 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:39,819 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042468175] [2021-07-13 19:05:39,819 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042468175] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:39,819 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:39,819 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:05:39,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681254581] [2021-07-13 19:05:39,819 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:05:39,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:39,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:05:39,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:05:39,820 INFO L87 Difference]: Start difference. First operand 10101 states and 27200 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:40,616 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:05:40,777 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:05:40,955 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:05:41,152 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:05:41,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:41,314 INFO L93 Difference]: Finished difference Result 19499 states and 51170 transitions. [2021-07-13 19:05:41,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:05:41,314 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:05:41,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:41,344 INFO L225 Difference]: With dead ends: 19499 [2021-07-13 19:05:41,344 INFO L226 Difference]: Without dead ends: 19499 [2021-07-13 19:05:41,344 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1339.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:05:41,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19499 states. [2021-07-13 19:05:41,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19499 to 10069. [2021-07-13 19:05:41,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10069 states, 10067 states have (on average 2.69275851792987) internal successors, (27108), 10068 states have internal predecessors, (27108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:41,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10069 states to 10069 states and 27108 transitions. [2021-07-13 19:05:41,558 INFO L78 Accepts]: Start accepts. Automaton has 10069 states and 27108 transitions. Word has length 114 [2021-07-13 19:05:41,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:41,558 INFO L482 AbstractCegarLoop]: Abstraction has 10069 states and 27108 transitions. [2021-07-13 19:05:41,558 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:41,558 INFO L276 IsEmpty]: Start isEmpty. Operand 10069 states and 27108 transitions. [2021-07-13 19:05:41,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:05:41,569 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:41,569 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:41,570 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2021-07-13 19:05:41,570 INFO L430 AbstractCegarLoop]: === Iteration 277 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:41,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:41,570 INFO L82 PathProgramCache]: Analyzing trace with hash -1360378, now seen corresponding path program 268 times [2021-07-13 19:05:41,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:41,570 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943893440] [2021-07-13 19:05:41,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:41,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:41,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:41,955 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:41,956 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943893440] [2021-07-13 19:05:41,956 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943893440] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:41,956 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:41,956 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:05:41,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932155915] [2021-07-13 19:05:41,956 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:05:41,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:41,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:05:41,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:05:41,957 INFO L87 Difference]: Start difference. First operand 10069 states and 27108 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:42,722 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:05:42,891 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:05:43,076 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:05:43,272 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:05:43,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:43,423 INFO L93 Difference]: Finished difference Result 18631 states and 49061 transitions. [2021-07-13 19:05:43,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:05:43,424 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:05:43,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:43,451 INFO L225 Difference]: With dead ends: 18631 [2021-07-13 19:05:43,451 INFO L226 Difference]: Without dead ends: 18631 [2021-07-13 19:05:43,451 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1417.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:05:43,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18631 states. [2021-07-13 19:05:43,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18631 to 10117. [2021-07-13 19:05:43,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10117 states, 10115 states have (on average 2.6936233316856155) internal successors, (27246), 10116 states have internal predecessors, (27246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:43,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10117 states to 10117 states and 27246 transitions. [2021-07-13 19:05:43,657 INFO L78 Accepts]: Start accepts. Automaton has 10117 states and 27246 transitions. Word has length 114 [2021-07-13 19:05:43,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:43,657 INFO L482 AbstractCegarLoop]: Abstraction has 10117 states and 27246 transitions. [2021-07-13 19:05:43,657 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:43,657 INFO L276 IsEmpty]: Start isEmpty. Operand 10117 states and 27246 transitions. [2021-07-13 19:05:43,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:05:43,669 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:43,669 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:43,669 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2021-07-13 19:05:43,669 INFO L430 AbstractCegarLoop]: === Iteration 278 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:43,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:43,669 INFO L82 PathProgramCache]: Analyzing trace with hash -249907358, now seen corresponding path program 269 times [2021-07-13 19:05:43,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:43,669 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566502666] [2021-07-13 19:05:43,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:43,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:43,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:43,988 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:43,989 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566502666] [2021-07-13 19:05:43,989 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566502666] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:43,989 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:43,989 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:05:43,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755650209] [2021-07-13 19:05:43,989 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:05:43,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:43,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:05:43,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:05:43,989 INFO L87 Difference]: Start difference. First operand 10117 states and 27246 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:44,788 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:05:44,957 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:05:45,132 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:05:45,330 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:05:45,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:45,473 INFO L93 Difference]: Finished difference Result 18471 states and 48659 transitions. [2021-07-13 19:05:45,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:05:45,474 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:05:45,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:45,500 INFO L225 Difference]: With dead ends: 18471 [2021-07-13 19:05:45,500 INFO L226 Difference]: Without dead ends: 18471 [2021-07-13 19:05:45,500 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1376.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:05:45,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18471 states. [2021-07-13 19:05:45,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18471 to 10101. [2021-07-13 19:05:45,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10101 states, 10099 states have (on average 2.693335973858798) internal successors, (27200), 10100 states have internal predecessors, (27200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:45,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10101 states to 10101 states and 27200 transitions. [2021-07-13 19:05:45,707 INFO L78 Accepts]: Start accepts. Automaton has 10101 states and 27200 transitions. Word has length 114 [2021-07-13 19:05:45,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:45,708 INFO L482 AbstractCegarLoop]: Abstraction has 10101 states and 27200 transitions. [2021-07-13 19:05:45,708 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:45,708 INFO L276 IsEmpty]: Start isEmpty. Operand 10101 states and 27200 transitions. [2021-07-13 19:05:45,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:05:45,720 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:45,720 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:45,720 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2021-07-13 19:05:45,720 INFO L430 AbstractCegarLoop]: === Iteration 279 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:45,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:45,720 INFO L82 PathProgramCache]: Analyzing trace with hash -1406724662, now seen corresponding path program 270 times [2021-07-13 19:05:45,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:45,721 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674442266] [2021-07-13 19:05:45,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:45,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:46,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:46,067 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:46,067 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674442266] [2021-07-13 19:05:46,068 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674442266] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:46,068 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:46,068 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:05:46,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587931703] [2021-07-13 19:05:46,068 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:05:46,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:46,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:05:46,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:05:46,068 INFO L87 Difference]: Start difference. First operand 10101 states and 27200 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:46,841 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:05:46,989 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:05:47,176 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:05:47,375 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:05:47,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:47,524 INFO L93 Difference]: Finished difference Result 15904 states and 42113 transitions. [2021-07-13 19:05:47,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:05:47,525 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:05:47,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:47,547 INFO L225 Difference]: With dead ends: 15904 [2021-07-13 19:05:47,547 INFO L226 Difference]: Without dead ends: 15904 [2021-07-13 19:05:47,547 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1346.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:05:47,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15904 states. [2021-07-13 19:05:47,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15904 to 9973. [2021-07-13 19:05:47,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9973 states, 9971 states have (on average 2.6910039113428943) internal successors, (26832), 9972 states have internal predecessors, (26832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:47,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9973 states to 9973 states and 26832 transitions. [2021-07-13 19:05:47,743 INFO L78 Accepts]: Start accepts. Automaton has 9973 states and 26832 transitions. Word has length 114 [2021-07-13 19:05:47,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:47,744 INFO L482 AbstractCegarLoop]: Abstraction has 9973 states and 26832 transitions. [2021-07-13 19:05:47,744 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:47,744 INFO L276 IsEmpty]: Start isEmpty. Operand 9973 states and 26832 transitions. [2021-07-13 19:05:47,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:05:47,755 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:47,755 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:47,755 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2021-07-13 19:05:47,755 INFO L430 AbstractCegarLoop]: === Iteration 280 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:47,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:47,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1149233544, now seen corresponding path program 271 times [2021-07-13 19:05:47,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:47,755 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148853678] [2021-07-13 19:05:47,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:47,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:48,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:48,158 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:48,159 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148853678] [2021-07-13 19:05:48,159 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148853678] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:48,159 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:48,159 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:05:48,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507257709] [2021-07-13 19:05:48,159 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:05:48,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:48,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:05:48,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:05:48,159 INFO L87 Difference]: Start difference. First operand 9973 states and 26832 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:48,940 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:05:49,119 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:05:49,294 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:05:49,495 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:05:49,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:49,682 INFO L93 Difference]: Finished difference Result 21836 states and 57895 transitions. [2021-07-13 19:05:49,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:05:49,683 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:05:49,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:49,717 INFO L225 Difference]: With dead ends: 21836 [2021-07-13 19:05:49,717 INFO L226 Difference]: Without dead ends: 21836 [2021-07-13 19:05:49,717 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1404.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:05:49,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21836 states. [2021-07-13 19:05:49,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21836 to 10053. [2021-07-13 19:05:49,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10053 states, 10051 states have (on average 2.692468411103373) internal successors, (27062), 10052 states have internal predecessors, (27062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:49,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10053 states to 10053 states and 27062 transitions. [2021-07-13 19:05:49,965 INFO L78 Accepts]: Start accepts. Automaton has 10053 states and 27062 transitions. Word has length 114 [2021-07-13 19:05:49,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:49,965 INFO L482 AbstractCegarLoop]: Abstraction has 10053 states and 27062 transitions. [2021-07-13 19:05:49,965 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:49,965 INFO L276 IsEmpty]: Start isEmpty. Operand 10053 states and 27062 transitions. [2021-07-13 19:05:49,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:05:49,977 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:49,977 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:49,977 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2021-07-13 19:05:49,977 INFO L430 AbstractCegarLoop]: === Iteration 281 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:49,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:49,977 INFO L82 PathProgramCache]: Analyzing trace with hash -936145402, now seen corresponding path program 272 times [2021-07-13 19:05:49,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:49,977 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198531466] [2021-07-13 19:05:49,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:49,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:50,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:50,398 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:50,398 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198531466] [2021-07-13 19:05:50,398 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198531466] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:50,398 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:50,399 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:05:50,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479104692] [2021-07-13 19:05:50,399 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:05:50,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:50,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:05:50,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:05:50,399 INFO L87 Difference]: Start difference. First operand 10053 states and 27062 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:51,163 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:05:51,336 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:05:51,522 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:05:51,717 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:05:51,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:51,895 INFO L93 Difference]: Finished difference Result 21414 states and 56381 transitions. [2021-07-13 19:05:51,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:05:51,896 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:05:51,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:51,931 INFO L225 Difference]: With dead ends: 21414 [2021-07-13 19:05:51,931 INFO L226 Difference]: Without dead ends: 21414 [2021-07-13 19:05:51,931 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1354.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:05:51,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21414 states. [2021-07-13 19:05:52,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21414 to 10037. [2021-07-13 19:05:52,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10037 states, 10035 states have (on average 2.692177379172895) internal successors, (27016), 10036 states have internal predecessors, (27016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:52,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10037 states to 10037 states and 27016 transitions. [2021-07-13 19:05:52,173 INFO L78 Accepts]: Start accepts. Automaton has 10037 states and 27016 transitions. Word has length 114 [2021-07-13 19:05:52,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:52,173 INFO L482 AbstractCegarLoop]: Abstraction has 10037 states and 27016 transitions. [2021-07-13 19:05:52,173 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:52,173 INFO L276 IsEmpty]: Start isEmpty. Operand 10037 states and 27016 transitions. [2021-07-13 19:05:52,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:05:52,185 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:52,185 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:52,185 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2021-07-13 19:05:52,185 INFO L430 AbstractCegarLoop]: === Iteration 282 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:52,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:52,185 INFO L82 PathProgramCache]: Analyzing trace with hash 1719708520, now seen corresponding path program 273 times [2021-07-13 19:05:52,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:52,186 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62713803] [2021-07-13 19:05:52,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:52,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:52,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:52,515 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:52,515 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62713803] [2021-07-13 19:05:52,515 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62713803] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:52,515 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:52,515 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:05:52,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152199976] [2021-07-13 19:05:52,515 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:05:52,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:52,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:05:52,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:05:52,516 INFO L87 Difference]: Start difference. First operand 10037 states and 27016 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:53,064 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-07-13 19:05:53,333 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:05:53,486 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:05:53,680 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:05:53,882 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:05:54,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:54,066 INFO L93 Difference]: Finished difference Result 18892 states and 49874 transitions. [2021-07-13 19:05:54,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:05:54,066 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:05:54,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:54,095 INFO L225 Difference]: With dead ends: 18892 [2021-07-13 19:05:54,095 INFO L226 Difference]: Without dead ends: 18892 [2021-07-13 19:05:54,095 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1373.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:05:54,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18892 states. [2021-07-13 19:05:54,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18892 to 10005. [2021-07-13 19:05:54,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10005 states, 10003 states have (on average 2.691592522243327) internal successors, (26924), 10004 states have internal predecessors, (26924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:54,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10005 states to 10005 states and 26924 transitions. [2021-07-13 19:05:54,298 INFO L78 Accepts]: Start accepts. Automaton has 10005 states and 26924 transitions. Word has length 114 [2021-07-13 19:05:54,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:54,298 INFO L482 AbstractCegarLoop]: Abstraction has 10005 states and 26924 transitions. [2021-07-13 19:05:54,299 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:54,299 INFO L276 IsEmpty]: Start isEmpty. Operand 10005 states and 26924 transitions. [2021-07-13 19:05:54,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:05:54,310 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:54,310 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:54,310 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281 [2021-07-13 19:05:54,310 INFO L430 AbstractCegarLoop]: === Iteration 283 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:54,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:54,310 INFO L82 PathProgramCache]: Analyzing trace with hash 2018109194, now seen corresponding path program 274 times [2021-07-13 19:05:54,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:54,311 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359585900] [2021-07-13 19:05:54,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:54,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:54,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:54,615 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:54,615 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359585900] [2021-07-13 19:05:54,615 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359585900] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:54,615 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:54,615 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:05:54,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543396517] [2021-07-13 19:05:54,616 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:05:54,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:54,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:05:54,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:05:54,616 INFO L87 Difference]: Start difference. First operand 10005 states and 26924 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:55,387 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:05:55,545 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:05:55,718 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:05:55,914 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:05:56,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:56,103 INFO L93 Difference]: Finished difference Result 18702 states and 49360 transitions. [2021-07-13 19:05:56,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:05:56,104 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:05:56,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:56,130 INFO L225 Difference]: With dead ends: 18702 [2021-07-13 19:05:56,131 INFO L226 Difference]: Without dead ends: 18702 [2021-07-13 19:05:56,131 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1328.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:05:56,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18702 states. [2021-07-13 19:05:56,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18702 to 10037. [2021-07-13 19:05:56,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10037 states, 10035 states have (on average 2.692177379172895) internal successors, (27016), 10036 states have internal predecessors, (27016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:56,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10037 states to 10037 states and 27016 transitions. [2021-07-13 19:05:56,323 INFO L78 Accepts]: Start accepts. Automaton has 10037 states and 27016 transitions. Word has length 114 [2021-07-13 19:05:56,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:56,324 INFO L482 AbstractCegarLoop]: Abstraction has 10037 states and 27016 transitions. [2021-07-13 19:05:56,324 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:56,324 INFO L276 IsEmpty]: Start isEmpty. Operand 10037 states and 27016 transitions. [2021-07-13 19:05:56,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:05:56,335 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:56,335 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:56,335 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282 [2021-07-13 19:05:56,335 INFO L430 AbstractCegarLoop]: === Iteration 284 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:56,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:56,335 INFO L82 PathProgramCache]: Analyzing trace with hash -67269752, now seen corresponding path program 275 times [2021-07-13 19:05:56,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:56,335 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067191165] [2021-07-13 19:05:56,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:56,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:56,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:56,643 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:56,643 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067191165] [2021-07-13 19:05:56,643 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067191165] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:56,643 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:56,643 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:05:56,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235091462] [2021-07-13 19:05:56,644 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:05:56,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:56,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:05:56,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:05:56,644 INFO L87 Difference]: Start difference. First operand 10037 states and 27016 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:57,434 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:05:57,596 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:05:57,786 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:05:57,979 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:05:58,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:58,171 INFO L93 Difference]: Finished difference Result 19515 states and 51164 transitions. [2021-07-13 19:05:58,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:05:58,171 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:05:58,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:58,201 INFO L225 Difference]: With dead ends: 19515 [2021-07-13 19:05:58,201 INFO L226 Difference]: Without dead ends: 19515 [2021-07-13 19:05:58,201 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1334.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:05:58,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19515 states. [2021-07-13 19:05:58,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19515 to 10021. [2021-07-13 19:05:58,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10021 states, 10019 states have (on average 2.691885417706358) internal successors, (26970), 10020 states have internal predecessors, (26970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:58,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10021 states to 10021 states and 26970 transitions. [2021-07-13 19:05:58,488 INFO L78 Accepts]: Start accepts. Automaton has 10021 states and 26970 transitions. Word has length 114 [2021-07-13 19:05:58,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:58,489 INFO L482 AbstractCegarLoop]: Abstraction has 10021 states and 26970 transitions. [2021-07-13 19:05:58,489 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:58,489 INFO L276 IsEmpty]: Start isEmpty. Operand 10021 states and 26970 transitions. [2021-07-13 19:05:58,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:05:58,499 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:58,499 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:58,499 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2021-07-13 19:05:58,499 INFO L430 AbstractCegarLoop]: === Iteration 285 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:58,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:58,500 INFO L82 PathProgramCache]: Analyzing trace with hash -341494550, now seen corresponding path program 276 times [2021-07-13 19:05:58,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:58,500 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874375158] [2021-07-13 19:05:58,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:58,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:58,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:58,805 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:58,805 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874375158] [2021-07-13 19:05:58,806 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874375158] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:58,806 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:58,806 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:05:58,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882316336] [2021-07-13 19:05:58,806 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:05:58,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:58,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:05:58,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:05:58,806 INFO L87 Difference]: Start difference. First operand 10021 states and 26970 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:59,577 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:05:59,735 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:05:59,919 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:06:00,110 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:06:00,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:00,265 INFO L93 Difference]: Finished difference Result 18841 states and 49577 transitions. [2021-07-13 19:06:00,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:06:00,265 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:06:00,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:00,291 INFO L225 Difference]: With dead ends: 18841 [2021-07-13 19:06:00,291 INFO L226 Difference]: Without dead ends: 18841 [2021-07-13 19:06:00,292 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1339.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:06:00,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18841 states. [2021-07-13 19:06:00,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18841 to 10037. [2021-07-13 19:06:00,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10037 states, 10035 states have (on average 2.692177379172895) internal successors, (27016), 10036 states have internal predecessors, (27016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:00,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10037 states to 10037 states and 27016 transitions. [2021-07-13 19:06:00,485 INFO L78 Accepts]: Start accepts. Automaton has 10037 states and 27016 transitions. Word has length 114 [2021-07-13 19:06:00,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:00,486 INFO L482 AbstractCegarLoop]: Abstraction has 10037 states and 27016 transitions. [2021-07-13 19:06:00,486 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:00,486 INFO L276 IsEmpty]: Start isEmpty. Operand 10037 states and 27016 transitions. [2021-07-13 19:06:00,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:06:00,497 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:00,497 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:00,497 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2021-07-13 19:06:00,497 INFO L430 AbstractCegarLoop]: === Iteration 286 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:00,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:00,497 INFO L82 PathProgramCache]: Analyzing trace with hash -590041530, now seen corresponding path program 277 times [2021-07-13 19:06:00,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:00,497 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137849603] [2021-07-13 19:06:00,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:00,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:00,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:00,803 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:00,803 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137849603] [2021-07-13 19:06:00,803 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137849603] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:00,804 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:00,804 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:06:00,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947542757] [2021-07-13 19:06:00,804 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:06:00,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:00,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:06:00,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:06:00,804 INFO L87 Difference]: Start difference. First operand 10037 states and 27016 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:01,599 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:06:01,759 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:06:01,931 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:06:02,125 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:06:02,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:02,272 INFO L93 Difference]: Finished difference Result 16188 states and 42817 transitions. [2021-07-13 19:06:02,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:06:02,273 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:06:02,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:02,298 INFO L225 Difference]: With dead ends: 16188 [2021-07-13 19:06:02,298 INFO L226 Difference]: Without dead ends: 16188 [2021-07-13 19:06:02,299 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1325.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:06:02,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16188 states. [2021-07-13 19:06:02,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16188 to 9973. [2021-07-13 19:06:02,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9973 states, 9971 states have (on average 2.6910039113428943) internal successors, (26832), 9972 states have internal predecessors, (26832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:02,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9973 states to 9973 states and 26832 transitions. [2021-07-13 19:06:02,473 INFO L78 Accepts]: Start accepts. Automaton has 9973 states and 26832 transitions. Word has length 114 [2021-07-13 19:06:02,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:02,473 INFO L482 AbstractCegarLoop]: Abstraction has 9973 states and 26832 transitions. [2021-07-13 19:06:02,473 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:02,474 INFO L276 IsEmpty]: Start isEmpty. Operand 9973 states and 26832 transitions. [2021-07-13 19:06:02,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:06:02,485 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:02,485 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:02,485 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2021-07-13 19:06:02,485 INFO L430 AbstractCegarLoop]: === Iteration 287 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:02,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:02,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1054555306, now seen corresponding path program 278 times [2021-07-13 19:06:02,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:02,485 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520935991] [2021-07-13 19:06:02,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:02,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:02,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:02,818 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:02,818 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520935991] [2021-07-13 19:06:02,818 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520935991] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:02,818 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:02,818 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:06:02,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898643879] [2021-07-13 19:06:02,819 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:06:02,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:02,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:06:02,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:06:02,819 INFO L87 Difference]: Start difference. First operand 9973 states and 26832 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:03,453 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-07-13 19:06:03,597 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:06:03,774 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:06:03,950 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:06:04,197 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:06:04,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:04,351 INFO L93 Difference]: Finished difference Result 16404 states and 43617 transitions. [2021-07-13 19:06:04,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:06:04,351 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:06:04,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:04,375 INFO L225 Difference]: With dead ends: 16404 [2021-07-13 19:06:04,375 INFO L226 Difference]: Without dead ends: 16404 [2021-07-13 19:06:04,375 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1417.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:06:04,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16404 states. [2021-07-13 19:06:04,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16404 to 10021. [2021-07-13 19:06:04,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10021 states, 10019 states have (on average 2.691885417706358) internal successors, (26970), 10020 states have internal predecessors, (26970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:04,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10021 states to 10021 states and 26970 transitions. [2021-07-13 19:06:04,555 INFO L78 Accepts]: Start accepts. Automaton has 10021 states and 26970 transitions. Word has length 114 [2021-07-13 19:06:04,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:04,555 INFO L482 AbstractCegarLoop]: Abstraction has 10021 states and 26970 transitions. [2021-07-13 19:06:04,555 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:04,555 INFO L276 IsEmpty]: Start isEmpty. Operand 10021 states and 26970 transitions. [2021-07-13 19:06:04,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:06:04,566 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:04,566 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:04,566 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286 [2021-07-13 19:06:04,566 INFO L430 AbstractCegarLoop]: === Iteration 288 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:04,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:04,567 INFO L82 PathProgramCache]: Analyzing trace with hash -1030823640, now seen corresponding path program 279 times [2021-07-13 19:06:04,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:04,567 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748610676] [2021-07-13 19:06:04,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:04,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:04,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:04,905 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:04,905 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748610676] [2021-07-13 19:06:04,905 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748610676] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:04,905 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:04,905 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:06:04,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025352577] [2021-07-13 19:06:04,905 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:06:04,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:04,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:06:04,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:06:04,905 INFO L87 Difference]: Start difference. First operand 10021 states and 26970 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:05,691 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:06:05,872 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:06:06,065 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:06:06,262 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:06:06,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:06,424 INFO L93 Difference]: Finished difference Result 15982 states and 42103 transitions. [2021-07-13 19:06:06,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:06:06,425 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:06:06,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:06,447 INFO L225 Difference]: With dead ends: 15982 [2021-07-13 19:06:06,447 INFO L226 Difference]: Without dead ends: 15982 [2021-07-13 19:06:06,447 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1375.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:06:06,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15982 states. [2021-07-13 19:06:06,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15982 to 10005. [2021-07-13 19:06:06,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10005 states, 10003 states have (on average 2.691592522243327) internal successors, (26924), 10004 states have internal predecessors, (26924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:06,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10005 states to 10005 states and 26924 transitions. [2021-07-13 19:06:06,612 INFO L78 Accepts]: Start accepts. Automaton has 10005 states and 26924 transitions. Word has length 114 [2021-07-13 19:06:06,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:06,613 INFO L482 AbstractCegarLoop]: Abstraction has 10005 states and 26924 transitions. [2021-07-13 19:06:06,613 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:06,613 INFO L276 IsEmpty]: Start isEmpty. Operand 10005 states and 26924 transitions. [2021-07-13 19:06:06,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:06:06,624 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:06,624 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:06,624 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2021-07-13 19:06:06,624 INFO L430 AbstractCegarLoop]: === Iteration 289 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:06,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:06,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1625030282, now seen corresponding path program 280 times [2021-07-13 19:06:06,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:06,624 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591740573] [2021-07-13 19:06:06,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:06,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:07,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:07,021 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:07,021 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591740573] [2021-07-13 19:06:07,021 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591740573] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:07,021 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:07,021 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:06:07,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086324681] [2021-07-13 19:06:07,022 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:06:07,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:07,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:06:07,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:06:07,022 INFO L87 Difference]: Start difference. First operand 10005 states and 26924 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:07,811 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:06:07,963 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:06:08,162 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:06:08,366 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:06:08,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:08,515 INFO L93 Difference]: Finished difference Result 15964 states and 42157 transitions. [2021-07-13 19:06:08,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:06:08,515 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:06:08,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:08,538 INFO L225 Difference]: With dead ends: 15964 [2021-07-13 19:06:08,538 INFO L226 Difference]: Without dead ends: 15964 [2021-07-13 19:06:08,538 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1356.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:06:08,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15964 states. [2021-07-13 19:06:08,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15964 to 9973. [2021-07-13 19:06:08,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9973 states, 9971 states have (on average 2.6910039113428943) internal successors, (26832), 9972 states have internal predecessors, (26832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:08,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9973 states to 9973 states and 26832 transitions. [2021-07-13 19:06:08,713 INFO L78 Accepts]: Start accepts. Automaton has 9973 states and 26832 transitions. Word has length 114 [2021-07-13 19:06:08,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:08,713 INFO L482 AbstractCegarLoop]: Abstraction has 9973 states and 26832 transitions. [2021-07-13 19:06:08,713 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:08,713 INFO L276 IsEmpty]: Start isEmpty. Operand 9973 states and 26832 transitions. [2021-07-13 19:06:08,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:06:08,724 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:08,724 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:08,724 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2021-07-13 19:06:08,724 INFO L430 AbstractCegarLoop]: === Iteration 290 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:08,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:08,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1246212968, now seen corresponding path program 281 times [2021-07-13 19:06:08,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:08,724 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15682839] [2021-07-13 19:06:08,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:08,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:09,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:09,065 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:09,065 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15682839] [2021-07-13 19:06:09,065 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15682839] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:09,065 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:09,065 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:06:09,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454375619] [2021-07-13 19:06:09,066 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:06:09,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:09,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:06:09,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:06:09,066 INFO L87 Difference]: Start difference. First operand 9973 states and 26832 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:09,623 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-07-13 19:06:09,884 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-13 19:06:10,031 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:06:10,225 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:06:10,424 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:06:10,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:10,572 INFO L93 Difference]: Finished difference Result 13038 states and 34586 transitions. [2021-07-13 19:06:10,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:06:10,572 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:06:10,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:10,592 INFO L225 Difference]: With dead ends: 13038 [2021-07-13 19:06:10,592 INFO L226 Difference]: Without dead ends: 13038 [2021-07-13 19:06:10,592 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1379.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:06:10,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13038 states. [2021-07-13 19:06:10,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13038 to 9821. [2021-07-13 19:06:10,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9821 states, 9819 states have (on average 2.68785008656686) internal successors, (26392), 9820 states have internal predecessors, (26392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:10,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9821 states to 9821 states and 26392 transitions. [2021-07-13 19:06:10,737 INFO L78 Accepts]: Start accepts. Automaton has 9821 states and 26392 transitions. Word has length 114 [2021-07-13 19:06:10,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:10,737 INFO L482 AbstractCegarLoop]: Abstraction has 9821 states and 26392 transitions. [2021-07-13 19:06:10,737 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:10,737 INFO L276 IsEmpty]: Start isEmpty. Operand 9821 states and 26392 transitions. [2021-07-13 19:06:10,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:06:10,748 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:10,748 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:10,748 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable289 [2021-07-13 19:06:10,748 INFO L430 AbstractCegarLoop]: === Iteration 291 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:10,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:10,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1010653818, now seen corresponding path program 282 times [2021-07-13 19:06:10,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:10,748 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914880162] [2021-07-13 19:06:10,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:10,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:11,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:11,066 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:11,066 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914880162] [2021-07-13 19:06:11,066 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914880162] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:11,066 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:11,066 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:06:11,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87117543] [2021-07-13 19:06:11,067 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:06:11,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:11,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:06:11,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:06:11,067 INFO L87 Difference]: Start difference. First operand 9821 states and 26392 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:11,856 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:06:12,033 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:06:12,209 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:06:12,411 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:06:12,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:12,613 INFO L93 Difference]: Finished difference Result 21012 states and 55493 transitions. [2021-07-13 19:06:12,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:06:12,614 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:06:12,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:12,642 INFO L225 Difference]: With dead ends: 21012 [2021-07-13 19:06:12,642 INFO L226 Difference]: Without dead ends: 21012 [2021-07-13 19:06:12,642 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1338.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:06:12,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21012 states. [2021-07-13 19:06:12,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21012 to 9997. [2021-07-13 19:06:12,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9997 states, 9995 states have (on average 2.691145572786393) internal successors, (26898), 9996 states have internal predecessors, (26898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:12,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9997 states to 9997 states and 26898 transitions. [2021-07-13 19:06:12,853 INFO L78 Accepts]: Start accepts. Automaton has 9997 states and 26898 transitions. Word has length 114 [2021-07-13 19:06:12,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:12,853 INFO L482 AbstractCegarLoop]: Abstraction has 9997 states and 26898 transitions. [2021-07-13 19:06:12,853 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:12,853 INFO L276 IsEmpty]: Start isEmpty. Operand 9997 states and 26898 transitions. [2021-07-13 19:06:12,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:06:12,865 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:12,865 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:12,865 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290 [2021-07-13 19:06:12,865 INFO L430 AbstractCegarLoop]: === Iteration 292 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:12,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:12,865 INFO L82 PathProgramCache]: Analyzing trace with hash 1198934532, now seen corresponding path program 283 times [2021-07-13 19:06:12,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:12,865 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045461666] [2021-07-13 19:06:12,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:12,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:13,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:13,188 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:13,188 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045461666] [2021-07-13 19:06:13,188 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045461666] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:13,188 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:13,188 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:06:13,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194402502] [2021-07-13 19:06:13,188 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:06:13,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:13,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:06:13,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:06:13,189 INFO L87 Difference]: Start difference. First operand 9997 states and 26898 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:13,959 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:06:14,129 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:06:14,315 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:06:14,510 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:06:14,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:14,672 INFO L93 Difference]: Finished difference Result 20590 states and 53979 transitions. [2021-07-13 19:06:14,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:06:14,672 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:06:14,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:14,701 INFO L225 Difference]: With dead ends: 20590 [2021-07-13 19:06:14,701 INFO L226 Difference]: Without dead ends: 20590 [2021-07-13 19:06:14,701 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1350.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:06:14,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20590 states. [2021-07-13 19:06:14,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20590 to 9981. [2021-07-13 19:06:14,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.690850786651969) internal successors, (26852), 9980 states have internal predecessors, (26852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:14,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26852 transitions. [2021-07-13 19:06:14,912 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26852 transitions. Word has length 114 [2021-07-13 19:06:14,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:14,912 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26852 transitions. [2021-07-13 19:06:14,912 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:14,912 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26852 transitions. [2021-07-13 19:06:14,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:06:14,979 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:14,979 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:14,979 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291 [2021-07-13 19:06:14,979 INFO L430 AbstractCegarLoop]: === Iteration 293 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:14,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:14,979 INFO L82 PathProgramCache]: Analyzing trace with hash -440178842, now seen corresponding path program 284 times [2021-07-13 19:06:14,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:14,980 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348922919] [2021-07-13 19:06:14,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:14,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:15,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:15,301 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:15,301 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348922919] [2021-07-13 19:06:15,301 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348922919] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:15,301 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:15,301 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:06:15,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250480493] [2021-07-13 19:06:15,302 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:06:15,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:15,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:06:15,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:06:15,302 INFO L87 Difference]: Start difference. First operand 9981 states and 26852 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:16,143 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:06:16,292 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:06:16,482 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:06:16,683 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:06:16,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:16,838 INFO L93 Difference]: Finished difference Result 18068 states and 47472 transitions. [2021-07-13 19:06:16,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:06:16,839 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:06:16,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:16,864 INFO L225 Difference]: With dead ends: 18068 [2021-07-13 19:06:16,864 INFO L226 Difference]: Without dead ends: 18068 [2021-07-13 19:06:16,865 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1372.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:06:16,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18068 states. [2021-07-13 19:06:17,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18068 to 9949. [2021-07-13 19:06:17,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9949 states, 9947 states have (on average 2.690258369357595) internal successors, (26760), 9948 states have internal predecessors, (26760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:17,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9949 states to 9949 states and 26760 transitions. [2021-07-13 19:06:17,057 INFO L78 Accepts]: Start accepts. Automaton has 9949 states and 26760 transitions. Word has length 114 [2021-07-13 19:06:17,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:17,057 INFO L482 AbstractCegarLoop]: Abstraction has 9949 states and 26760 transitions. [2021-07-13 19:06:17,057 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:17,057 INFO L276 IsEmpty]: Start isEmpty. Operand 9949 states and 26760 transitions. [2021-07-13 19:06:17,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:06:17,069 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:17,069 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:17,069 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292 [2021-07-13 19:06:17,070 INFO L430 AbstractCegarLoop]: === Iteration 294 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:17,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:17,070 INFO L82 PathProgramCache]: Analyzing trace with hash -141778168, now seen corresponding path program 285 times [2021-07-13 19:06:17,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:17,070 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077115653] [2021-07-13 19:06:17,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:17,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:17,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:17,379 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:17,379 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077115653] [2021-07-13 19:06:17,379 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077115653] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:17,379 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:17,379 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:06:17,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33932194] [2021-07-13 19:06:17,379 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:06:17,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:17,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:06:17,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:06:17,380 INFO L87 Difference]: Start difference. First operand 9949 states and 26760 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:18,190 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:06:18,350 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:06:18,524 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:06:18,722 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:06:18,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:18,892 INFO L93 Difference]: Finished difference Result 21630 states and 56520 transitions. [2021-07-13 19:06:18,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:06:18,893 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:06:18,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:18,924 INFO L225 Difference]: With dead ends: 21630 [2021-07-13 19:06:18,924 INFO L226 Difference]: Without dead ends: 21630 [2021-07-13 19:06:18,925 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1363.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:06:18,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21630 states. [2021-07-13 19:06:19,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21630 to 9981. [2021-07-13 19:06:19,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.690850786651969) internal successors, (26852), 9980 states have internal predecessors, (26852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:19,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26852 transitions. [2021-07-13 19:06:19,160 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26852 transitions. Word has length 114 [2021-07-13 19:06:19,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:19,161 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26852 transitions. [2021-07-13 19:06:19,161 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:19,161 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26852 transitions. [2021-07-13 19:06:19,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:06:19,172 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:19,172 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:19,172 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293 [2021-07-13 19:06:19,172 INFO L430 AbstractCegarLoop]: === Iteration 295 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:19,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:19,173 INFO L82 PathProgramCache]: Analyzing trace with hash 2067810182, now seen corresponding path program 286 times [2021-07-13 19:06:19,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:19,173 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343294723] [2021-07-13 19:06:19,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:19,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:19,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:19,519 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:19,519 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343294723] [2021-07-13 19:06:19,519 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343294723] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:19,519 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:19,519 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:06:19,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190986819] [2021-07-13 19:06:19,520 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:06:19,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:19,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:06:19,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:06:19,520 INFO L87 Difference]: Start difference. First operand 9981 states and 26852 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:20,321 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:06:20,484 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:06:20,707 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:06:20,903 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:06:21,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:21,092 INFO L93 Difference]: Finished difference Result 22443 states and 58324 transitions. [2021-07-13 19:06:21,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:06:21,093 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:06:21,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:21,124 INFO L225 Difference]: With dead ends: 22443 [2021-07-13 19:06:21,124 INFO L226 Difference]: Without dead ends: 22443 [2021-07-13 19:06:21,125 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1389.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:06:21,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22443 states. [2021-07-13 19:06:21,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22443 to 9965. [2021-07-13 19:06:21,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9965 states, 9963 states have (on average 2.6905550536986853) internal successors, (26806), 9964 states have internal predecessors, (26806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:21,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9965 states to 9965 states and 26806 transitions. [2021-07-13 19:06:21,360 INFO L78 Accepts]: Start accepts. Automaton has 9965 states and 26806 transitions. Word has length 114 [2021-07-13 19:06:21,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:21,360 INFO L482 AbstractCegarLoop]: Abstraction has 9965 states and 26806 transitions. [2021-07-13 19:06:21,360 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:21,361 INFO L276 IsEmpty]: Start isEmpty. Operand 9965 states and 26806 transitions. [2021-07-13 19:06:21,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:06:21,372 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:21,372 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:21,372 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294 [2021-07-13 19:06:21,372 INFO L430 AbstractCegarLoop]: === Iteration 296 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:21,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:21,372 INFO L82 PathProgramCache]: Analyzing trace with hash 1793585384, now seen corresponding path program 287 times [2021-07-13 19:06:21,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:21,373 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498101188] [2021-07-13 19:06:21,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:21,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:21,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:21,680 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:21,681 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498101188] [2021-07-13 19:06:21,681 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498101188] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:21,681 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:21,681 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:06:21,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170096728] [2021-07-13 19:06:21,681 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:06:21,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:21,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:06:21,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:06:21,681 INFO L87 Difference]: Start difference. First operand 9965 states and 26806 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:22,457 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:06:22,616 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:06:22,799 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:06:22,993 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:06:23,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:23,158 INFO L93 Difference]: Finished difference Result 21769 states and 56737 transitions. [2021-07-13 19:06:23,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:06:23,158 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:06:23,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:23,192 INFO L225 Difference]: With dead ends: 21769 [2021-07-13 19:06:23,192 INFO L226 Difference]: Without dead ends: 21769 [2021-07-13 19:06:23,193 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1339.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:06:23,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21769 states. [2021-07-13 19:06:23,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21769 to 9981. [2021-07-13 19:06:23,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.690850786651969) internal successors, (26852), 9980 states have internal predecessors, (26852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:23,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26852 transitions. [2021-07-13 19:06:23,451 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26852 transitions. Word has length 114 [2021-07-13 19:06:23,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:23,452 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26852 transitions. [2021-07-13 19:06:23,452 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:23,452 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26852 transitions. [2021-07-13 19:06:23,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:06:23,463 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:23,463 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:23,463 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2021-07-13 19:06:23,463 INFO L430 AbstractCegarLoop]: === Iteration 297 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:23,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:23,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1545038404, now seen corresponding path program 288 times [2021-07-13 19:06:23,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:23,463 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395050994] [2021-07-13 19:06:23,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:23,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:23,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:23,767 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:23,767 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395050994] [2021-07-13 19:06:23,768 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395050994] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:23,768 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:23,768 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:06:23,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295460966] [2021-07-13 19:06:23,768 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:06:23,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:23,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:06:23,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:06:23,768 INFO L87 Difference]: Start difference. First operand 9981 states and 26852 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:24,548 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:06:24,708 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:06:24,880 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:06:25,076 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:06:25,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:25,219 INFO L93 Difference]: Finished difference Result 18834 states and 49263 transitions. [2021-07-13 19:06:25,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:06:25,219 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:06:25,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:25,246 INFO L225 Difference]: With dead ends: 18834 [2021-07-13 19:06:25,246 INFO L226 Difference]: Without dead ends: 18834 [2021-07-13 19:06:25,246 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1327.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:06:25,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18834 states. [2021-07-13 19:06:25,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18834 to 9917. [2021-07-13 19:06:25,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9917 states, 9915 states have (on average 2.6896621280887545) internal successors, (26668), 9916 states have internal predecessors, (26668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:25,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9917 states to 9917 states and 26668 transitions. [2021-07-13 19:06:25,446 INFO L78 Accepts]: Start accepts. Automaton has 9917 states and 26668 transitions. Word has length 114 [2021-07-13 19:06:25,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:25,446 INFO L482 AbstractCegarLoop]: Abstraction has 9917 states and 26668 transitions. [2021-07-13 19:06:25,446 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:25,447 INFO L276 IsEmpty]: Start isEmpty. Operand 9917 states and 26668 transitions. [2021-07-13 19:06:25,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:06:25,458 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:25,458 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:25,458 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296 [2021-07-13 19:06:25,458 INFO L430 AbstractCegarLoop]: === Iteration 298 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:25,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:25,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1869580442, now seen corresponding path program 289 times [2021-07-13 19:06:25,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:25,458 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425114663] [2021-07-13 19:06:25,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:25,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:25,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:25,827 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:25,827 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425114663] [2021-07-13 19:06:25,827 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425114663] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:25,827 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:25,828 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:06:25,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996669861] [2021-07-13 19:06:25,828 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:06:25,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:25,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:06:25,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:06:25,828 INFO L87 Difference]: Start difference. First operand 9917 states and 26668 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:26,628 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:06:26,788 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:06:26,967 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:06:27,166 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:06:27,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:27,344 INFO L93 Difference]: Finished difference Result 22188 states and 58050 transitions. [2021-07-13 19:06:27,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:06:27,344 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:06:27,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:27,376 INFO L225 Difference]: With dead ends: 22188 [2021-07-13 19:06:27,376 INFO L226 Difference]: Without dead ends: 22188 [2021-07-13 19:06:27,376 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1323.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:06:27,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22188 states. [2021-07-13 19:06:27,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22188 to 9981. [2021-07-13 19:06:27,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.690850786651969) internal successors, (26852), 9980 states have internal predecessors, (26852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:27,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26852 transitions. [2021-07-13 19:06:27,604 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26852 transitions. Word has length 114 [2021-07-13 19:06:27,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:27,605 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26852 transitions. [2021-07-13 19:06:27,605 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:27,605 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26852 transitions. [2021-07-13 19:06:27,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:06:27,616 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:27,616 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:27,616 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297 [2021-07-13 19:06:27,616 INFO L430 AbstractCegarLoop]: === Iteration 299 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:27,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:27,617 INFO L82 PathProgramCache]: Analyzing trace with hash 340007908, now seen corresponding path program 290 times [2021-07-13 19:06:27,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:27,617 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981327633] [2021-07-13 19:06:27,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:27,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:27,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:27,927 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:27,927 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981327633] [2021-07-13 19:06:27,927 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981327633] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:27,927 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:27,927 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:06:27,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179140246] [2021-07-13 19:06:27,927 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:06:27,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:27,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:06:27,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:06:27,928 INFO L87 Difference]: Start difference. First operand 9981 states and 26852 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:28,760 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:06:28,920 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:06:29,114 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:06:29,310 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:06:29,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:29,496 INFO L93 Difference]: Finished difference Result 23001 states and 59854 transitions. [2021-07-13 19:06:29,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:06:29,497 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:06:29,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:29,530 INFO L225 Difference]: With dead ends: 23001 [2021-07-13 19:06:29,531 INFO L226 Difference]: Without dead ends: 23001 [2021-07-13 19:06:29,531 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1338.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:06:29,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23001 states. [2021-07-13 19:06:29,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23001 to 9965. [2021-07-13 19:06:29,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9965 states, 9963 states have (on average 2.6905550536986853) internal successors, (26806), 9964 states have internal predecessors, (26806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:29,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9965 states to 9965 states and 26806 transitions. [2021-07-13 19:06:29,760 INFO L78 Accepts]: Start accepts. Automaton has 9965 states and 26806 transitions. Word has length 114 [2021-07-13 19:06:29,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:29,760 INFO L482 AbstractCegarLoop]: Abstraction has 9965 states and 26806 transitions. [2021-07-13 19:06:29,760 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:29,760 INFO L276 IsEmpty]: Start isEmpty. Operand 9965 states and 26806 transitions. [2021-07-13 19:06:29,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:06:29,771 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:29,771 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:29,771 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298 [2021-07-13 19:06:29,772 INFO L430 AbstractCegarLoop]: === Iteration 300 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:29,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:29,772 INFO L82 PathProgramCache]: Analyzing trace with hash 65783110, now seen corresponding path program 291 times [2021-07-13 19:06:29,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:29,772 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087502162] [2021-07-13 19:06:29,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:29,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:30,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:30,082 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:30,082 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087502162] [2021-07-13 19:06:30,082 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087502162] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:30,082 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:30,083 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:06:30,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128288719] [2021-07-13 19:06:30,083 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:06:30,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:30,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:06:30,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:06:30,083 INFO L87 Difference]: Start difference. First operand 9965 states and 26806 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:30,858 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:06:31,030 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:06:31,215 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:06:31,409 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:06:31,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:31,625 INFO L93 Difference]: Finished difference Result 26114 states and 67804 transitions. [2021-07-13 19:06:31,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:06:31,625 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:06:31,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:31,664 INFO L225 Difference]: With dead ends: 26114 [2021-07-13 19:06:31,664 INFO L226 Difference]: Without dead ends: 26114 [2021-07-13 19:06:31,664 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1351.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:06:31,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26114 states. [2021-07-13 19:06:31,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26114 to 9981. [2021-07-13 19:06:31,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.690850786651969) internal successors, (26852), 9980 states have internal predecessors, (26852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:31,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26852 transitions. [2021-07-13 19:06:31,930 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26852 transitions. Word has length 114 [2021-07-13 19:06:31,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:31,931 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26852 transitions. [2021-07-13 19:06:31,931 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:31,931 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26852 transitions. [2021-07-13 19:06:31,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:06:31,942 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:31,942 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:31,942 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable299 [2021-07-13 19:06:31,942 INFO L430 AbstractCegarLoop]: === Iteration 301 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:31,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:31,942 INFO L82 PathProgramCache]: Analyzing trace with hash -182763870, now seen corresponding path program 292 times [2021-07-13 19:06:31,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:31,942 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39470286] [2021-07-13 19:06:31,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:31,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:32,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:32,244 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:32,245 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39470286] [2021-07-13 19:06:32,245 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39470286] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:32,245 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:32,245 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:06:32,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411239813] [2021-07-13 19:06:32,245 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:06:32,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:32,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:06:32,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:06:32,245 INFO L87 Difference]: Start difference. First operand 9981 states and 26852 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:33,041 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:06:33,204 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:06:33,383 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:06:33,583 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:06:33,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:33,761 INFO L93 Difference]: Finished difference Result 23179 states and 60330 transitions. [2021-07-13 19:06:33,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:06:33,761 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:06:33,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:33,796 INFO L225 Difference]: With dead ends: 23179 [2021-07-13 19:06:33,796 INFO L226 Difference]: Without dead ends: 23179 [2021-07-13 19:06:33,796 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1327.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:06:33,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23179 states. [2021-07-13 19:06:34,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23179 to 9949. [2021-07-13 19:06:34,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9949 states, 9947 states have (on average 2.690258369357595) internal successors, (26760), 9948 states have internal predecessors, (26760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:34,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9949 states to 9949 states and 26760 transitions. [2021-07-13 19:06:34,080 INFO L78 Accepts]: Start accepts. Automaton has 9949 states and 26760 transitions. Word has length 114 [2021-07-13 19:06:34,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:34,081 INFO L482 AbstractCegarLoop]: Abstraction has 9949 states and 26760 transitions. [2021-07-13 19:06:34,081 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:34,081 INFO L276 IsEmpty]: Start isEmpty. Operand 9949 states and 26760 transitions. [2021-07-13 19:06:34,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:06:34,093 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:34,093 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:34,093 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable300 [2021-07-13 19:06:34,093 INFO L430 AbstractCegarLoop]: === Iteration 302 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:34,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:34,093 INFO L82 PathProgramCache]: Analyzing trace with hash 1295698916, now seen corresponding path program 293 times [2021-07-13 19:06:34,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:34,094 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123722846] [2021-07-13 19:06:34,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:34,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:34,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:34,417 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:34,417 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123722846] [2021-07-13 19:06:34,417 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123722846] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:34,417 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:34,417 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:06:34,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529131988] [2021-07-13 19:06:34,417 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:06:34,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:34,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:06:34,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:06:34,418 INFO L87 Difference]: Start difference. First operand 9949 states and 26760 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:35,187 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:06:35,358 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:06:35,545 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:06:35,743 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:06:35,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:35,913 INFO L93 Difference]: Finished difference Result 22311 states and 58221 transitions. [2021-07-13 19:06:35,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:06:35,913 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:06:35,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:35,946 INFO L225 Difference]: With dead ends: 22311 [2021-07-13 19:06:35,946 INFO L226 Difference]: Without dead ends: 22311 [2021-07-13 19:06:35,946 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1359.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:06:35,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22311 states. [2021-07-13 19:06:36,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22311 to 9997. [2021-07-13 19:06:36,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9997 states, 9995 states have (on average 2.691145572786393) internal successors, (26898), 9996 states have internal predecessors, (26898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:36,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9997 states to 9997 states and 26898 transitions. [2021-07-13 19:06:36,183 INFO L78 Accepts]: Start accepts. Automaton has 9997 states and 26898 transitions. Word has length 114 [2021-07-13 19:06:36,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:36,184 INFO L482 AbstractCegarLoop]: Abstraction has 9997 states and 26898 transitions. [2021-07-13 19:06:36,184 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:36,184 INFO L276 IsEmpty]: Start isEmpty. Operand 9997 states and 26898 transitions. [2021-07-13 19:06:36,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:06:36,195 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:36,195 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:36,196 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable301 [2021-07-13 19:06:36,196 INFO L430 AbstractCegarLoop]: === Iteration 303 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:36,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:36,196 INFO L82 PathProgramCache]: Analyzing trace with hash 1047151936, now seen corresponding path program 294 times [2021-07-13 19:06:36,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:36,196 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040083831] [2021-07-13 19:06:36,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:36,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:36,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:36,575 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:36,575 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040083831] [2021-07-13 19:06:36,576 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040083831] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:36,576 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:36,576 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:06:36,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998482778] [2021-07-13 19:06:36,576 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:06:36,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:36,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:06:36,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:06:36,576 INFO L87 Difference]: Start difference. First operand 9997 states and 26898 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:37,348 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:06:37,520 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:06:37,697 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:06:37,894 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:06:38,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:38,056 INFO L93 Difference]: Finished difference Result 22151 states and 57819 transitions. [2021-07-13 19:06:38,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:06:38,056 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:06:38,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:38,088 INFO L225 Difference]: With dead ends: 22151 [2021-07-13 19:06:38,088 INFO L226 Difference]: Without dead ends: 22151 [2021-07-13 19:06:38,089 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1403.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:06:38,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22151 states. [2021-07-13 19:06:38,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22151 to 9981. [2021-07-13 19:06:38,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.690850786651969) internal successors, (26852), 9980 states have internal predecessors, (26852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:38,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26852 transitions. [2021-07-13 19:06:38,322 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26852 transitions. Word has length 114 [2021-07-13 19:06:38,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:38,322 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26852 transitions. [2021-07-13 19:06:38,322 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:38,322 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26852 transitions. [2021-07-13 19:06:38,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:06:38,334 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:38,334 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:38,334 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable302 [2021-07-13 19:06:38,334 INFO L430 AbstractCegarLoop]: === Iteration 304 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:38,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:38,334 INFO L82 PathProgramCache]: Analyzing trace with hash -109665368, now seen corresponding path program 295 times [2021-07-13 19:06:38,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:38,335 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683027998] [2021-07-13 19:06:38,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:38,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:38,654 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:38,654 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683027998] [2021-07-13 19:06:38,654 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683027998] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:38,654 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:38,654 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:06:38,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985955075] [2021-07-13 19:06:38,654 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:06:38,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:38,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:06:38,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:06:38,655 INFO L87 Difference]: Start difference. First operand 9981 states and 26852 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:39,464 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:06:39,623 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:06:39,812 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:06:40,012 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:06:40,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:40,159 INFO L93 Difference]: Finished difference Result 19302 states and 50559 transitions. [2021-07-13 19:06:40,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:06:40,160 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:06:40,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:40,187 INFO L225 Difference]: With dead ends: 19302 [2021-07-13 19:06:40,187 INFO L226 Difference]: Without dead ends: 19302 [2021-07-13 19:06:40,188 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1377.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:06:40,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19302 states. [2021-07-13 19:06:40,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19302 to 9853. [2021-07-13 19:06:40,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9853 states, 9851 states have (on average 2.688458024566034) internal successors, (26484), 9852 states have internal predecessors, (26484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:40,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9853 states to 9853 states and 26484 transitions. [2021-07-13 19:06:40,401 INFO L78 Accepts]: Start accepts. Automaton has 9853 states and 26484 transitions. Word has length 114 [2021-07-13 19:06:40,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:40,401 INFO L482 AbstractCegarLoop]: Abstraction has 9853 states and 26484 transitions. [2021-07-13 19:06:40,401 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:40,401 INFO L276 IsEmpty]: Start isEmpty. Operand 9853 states and 26484 transitions. [2021-07-13 19:06:40,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:06:40,413 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:40,413 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:40,413 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable303 [2021-07-13 19:06:40,413 INFO L430 AbstractCegarLoop]: === Iteration 305 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:40,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:40,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1545760922, now seen corresponding path program 296 times [2021-07-13 19:06:40,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:40,414 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185060158] [2021-07-13 19:06:40,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:40,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:40,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:40,721 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:40,721 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185060158] [2021-07-13 19:06:40,721 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185060158] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:40,721 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:40,721 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:06:40,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134314736] [2021-07-13 19:06:40,721 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:06:40,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:40,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:06:40,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:06:40,721 INFO L87 Difference]: Start difference. First operand 9853 states and 26484 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:41,498 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:06:41,657 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:06:41,832 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:06:42,027 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:06:42,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:42,225 INFO L93 Difference]: Finished difference Result 17286 states and 45418 transitions. [2021-07-13 19:06:42,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:06:42,225 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:06:42,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:42,246 INFO L225 Difference]: With dead ends: 17286 [2021-07-13 19:06:42,246 INFO L226 Difference]: Without dead ends: 17286 [2021-07-13 19:06:42,246 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1331.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:06:42,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17286 states. [2021-07-13 19:06:42,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17286 to 9933. [2021-07-13 19:06:42,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9933 states, 9931 states have (on average 2.689960729030309) internal successors, (26714), 9932 states have internal predecessors, (26714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:42,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9933 states to 9933 states and 26714 transitions. [2021-07-13 19:06:42,429 INFO L78 Accepts]: Start accepts. Automaton has 9933 states and 26714 transitions. Word has length 114 [2021-07-13 19:06:42,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:42,429 INFO L482 AbstractCegarLoop]: Abstraction has 9933 states and 26714 transitions. [2021-07-13 19:06:42,429 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:42,429 INFO L276 IsEmpty]: Start isEmpty. Operand 9933 states and 26714 transitions. [2021-07-13 19:06:42,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:06:42,441 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:42,441 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:42,441 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable304 [2021-07-13 19:06:42,441 INFO L430 AbstractCegarLoop]: === Iteration 306 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:42,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:42,441 INFO L82 PathProgramCache]: Analyzing trace with hash 663827428, now seen corresponding path program 297 times [2021-07-13 19:06:42,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:42,442 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43606828] [2021-07-13 19:06:42,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:42,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:42,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:42,751 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:42,751 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43606828] [2021-07-13 19:06:42,751 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43606828] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:42,751 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:42,751 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:06:42,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076552328] [2021-07-13 19:06:42,752 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:06:42,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:42,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:06:42,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:06:42,752 INFO L87 Difference]: Start difference. First operand 9933 states and 26714 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:43,550 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:06:43,712 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:06:43,903 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:06:44,098 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:06:44,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:44,267 INFO L93 Difference]: Finished difference Result 18099 states and 47222 transitions. [2021-07-13 19:06:44,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:06:44,268 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:06:44,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:44,294 INFO L225 Difference]: With dead ends: 18099 [2021-07-13 19:06:44,294 INFO L226 Difference]: Without dead ends: 18099 [2021-07-13 19:06:44,294 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1342.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:06:44,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18099 states. [2021-07-13 19:06:44,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18099 to 9917. [2021-07-13 19:06:44,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9917 states, 9915 states have (on average 2.6896621280887545) internal successors, (26668), 9916 states have internal predecessors, (26668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:44,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9917 states to 9917 states and 26668 transitions. [2021-07-13 19:06:44,484 INFO L78 Accepts]: Start accepts. Automaton has 9917 states and 26668 transitions. Word has length 114 [2021-07-13 19:06:44,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:44,484 INFO L482 AbstractCegarLoop]: Abstraction has 9917 states and 26668 transitions. [2021-07-13 19:06:44,484 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:44,484 INFO L276 IsEmpty]: Start isEmpty. Operand 9917 states and 26668 transitions. [2021-07-13 19:06:44,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:06:44,495 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:44,495 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:44,495 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305 [2021-07-13 19:06:44,495 INFO L430 AbstractCegarLoop]: === Iteration 307 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:44,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:44,496 INFO L82 PathProgramCache]: Analyzing trace with hash 389602630, now seen corresponding path program 298 times [2021-07-13 19:06:44,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:44,496 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295121887] [2021-07-13 19:06:44,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:44,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:44,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:44,863 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:44,863 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295121887] [2021-07-13 19:06:44,864 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295121887] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:44,864 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:44,864 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:06:44,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479381861] [2021-07-13 19:06:44,864 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:06:44,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:44,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:06:44,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:06:44,864 INFO L87 Difference]: Start difference. First operand 9917 states and 26668 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:45,633 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:06:45,793 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:06:45,977 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:06:46,170 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:06:46,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:46,332 INFO L93 Difference]: Finished difference Result 21212 states and 55172 transitions. [2021-07-13 19:06:46,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:06:46,333 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:06:46,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:46,362 INFO L225 Difference]: With dead ends: 21212 [2021-07-13 19:06:46,363 INFO L226 Difference]: Without dead ends: 21212 [2021-07-13 19:06:46,363 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1341.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:06:46,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21212 states. [2021-07-13 19:06:46,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21212 to 9933. [2021-07-13 19:06:46,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9933 states, 9931 states have (on average 2.689960729030309) internal successors, (26714), 9932 states have internal predecessors, (26714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:46,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9933 states to 9933 states and 26714 transitions. [2021-07-13 19:06:46,580 INFO L78 Accepts]: Start accepts. Automaton has 9933 states and 26714 transitions. Word has length 114 [2021-07-13 19:06:46,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:46,580 INFO L482 AbstractCegarLoop]: Abstraction has 9933 states and 26714 transitions. [2021-07-13 19:06:46,580 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:46,580 INFO L276 IsEmpty]: Start isEmpty. Operand 9933 states and 26714 transitions. [2021-07-13 19:06:46,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:06:46,591 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:46,591 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:46,591 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306 [2021-07-13 19:06:46,591 INFO L430 AbstractCegarLoop]: === Iteration 308 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:46,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:46,591 INFO L82 PathProgramCache]: Analyzing trace with hash 141055650, now seen corresponding path program 299 times [2021-07-13 19:06:46,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:46,591 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840309666] [2021-07-13 19:06:46,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:46,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:46,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:46,894 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:46,895 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840309666] [2021-07-13 19:06:46,895 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840309666] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:46,895 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:46,895 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:06:46,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577236224] [2021-07-13 19:06:46,895 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:06:46,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:46,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:06:46,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:06:46,895 INFO L87 Difference]: Start difference. First operand 9933 states and 26714 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:47,434 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-07-13 19:06:47,715 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:06:47,877 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:06:48,052 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:06:48,249 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:06:48,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:48,400 INFO L93 Difference]: Finished difference Result 18277 states and 47698 transitions. [2021-07-13 19:06:48,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:06:48,400 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:06:48,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:48,426 INFO L225 Difference]: With dead ends: 18277 [2021-07-13 19:06:48,426 INFO L226 Difference]: Without dead ends: 18277 [2021-07-13 19:06:48,427 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1355.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:06:48,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18277 states. [2021-07-13 19:06:48,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18277 to 9901. [2021-07-13 19:06:48,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9901 states, 9899 states have (on average 2.689362561874937) internal successors, (26622), 9900 states have internal predecessors, (26622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:48,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9901 states to 9901 states and 26622 transitions. [2021-07-13 19:06:48,615 INFO L78 Accepts]: Start accepts. Automaton has 9901 states and 26622 transitions. Word has length 114 [2021-07-13 19:06:48,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:48,615 INFO L482 AbstractCegarLoop]: Abstraction has 9901 states and 26622 transitions. [2021-07-13 19:06:48,615 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:48,616 INFO L276 IsEmpty]: Start isEmpty. Operand 9901 states and 26622 transitions. [2021-07-13 19:06:48,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:06:48,627 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:48,627 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:48,627 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable307 [2021-07-13 19:06:48,627 INFO L430 AbstractCegarLoop]: === Iteration 309 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:48,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:48,627 INFO L82 PathProgramCache]: Analyzing trace with hash 1619518436, now seen corresponding path program 300 times [2021-07-13 19:06:48,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:48,627 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968610057] [2021-07-13 19:06:48,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:48,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:48,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:48,945 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:48,945 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968610057] [2021-07-13 19:06:48,945 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968610057] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:48,946 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:48,946 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:06:48,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49823615] [2021-07-13 19:06:48,946 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:06:48,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:48,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:06:48,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:06:48,946 INFO L87 Difference]: Start difference. First operand 9901 states and 26622 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:49,705 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:06:49,876 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:06:50,071 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:06:50,265 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:06:50,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:50,464 INFO L93 Difference]: Finished difference Result 21722 states and 56564 transitions. [2021-07-13 19:06:50,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:06:50,464 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:06:50,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:50,496 INFO L225 Difference]: With dead ends: 21722 [2021-07-13 19:06:50,496 INFO L226 Difference]: Without dead ends: 21722 [2021-07-13 19:06:50,497 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1356.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:06:50,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21722 states. [2021-07-13 19:06:50,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21722 to 9949. [2021-07-13 19:06:50,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9949 states, 9947 states have (on average 2.690258369357595) internal successors, (26760), 9948 states have internal predecessors, (26760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:50,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9949 states to 9949 states and 26760 transitions. [2021-07-13 19:06:50,733 INFO L78 Accepts]: Start accepts. Automaton has 9949 states and 26760 transitions. Word has length 114 [2021-07-13 19:06:50,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:50,733 INFO L482 AbstractCegarLoop]: Abstraction has 9949 states and 26760 transitions. [2021-07-13 19:06:50,733 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:50,733 INFO L276 IsEmpty]: Start isEmpty. Operand 9949 states and 26760 transitions. [2021-07-13 19:06:50,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:06:50,745 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:50,745 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:50,745 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable308 [2021-07-13 19:06:50,745 INFO L430 AbstractCegarLoop]: === Iteration 310 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:50,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:50,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1370971456, now seen corresponding path program 301 times [2021-07-13 19:06:50,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:50,745 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306797731] [2021-07-13 19:06:50,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:50,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:51,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:51,063 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:51,063 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306797731] [2021-07-13 19:06:51,063 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306797731] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:51,063 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:51,063 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:06:51,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642204245] [2021-07-13 19:06:51,063 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:06:51,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:51,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:06:51,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:06:51,064 INFO L87 Difference]: Start difference. First operand 9949 states and 26760 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:51,845 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:06:52,023 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:06:52,202 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:06:52,404 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:06:52,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:52,576 INFO L93 Difference]: Finished difference Result 21562 states and 56162 transitions. [2021-07-13 19:06:52,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:06:52,576 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:06:52,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:52,607 INFO L225 Difference]: With dead ends: 21562 [2021-07-13 19:06:52,607 INFO L226 Difference]: Without dead ends: 21562 [2021-07-13 19:06:52,607 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1342.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:06:52,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21562 states. [2021-07-13 19:06:52,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21562 to 9933. [2021-07-13 19:06:52,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9933 states, 9931 states have (on average 2.689960729030309) internal successors, (26714), 9932 states have internal predecessors, (26714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:52,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9933 states to 9933 states and 26714 transitions. [2021-07-13 19:06:52,885 INFO L78 Accepts]: Start accepts. Automaton has 9933 states and 26714 transitions. Word has length 114 [2021-07-13 19:06:52,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:52,885 INFO L482 AbstractCegarLoop]: Abstraction has 9933 states and 26714 transitions. [2021-07-13 19:06:52,885 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:52,885 INFO L276 IsEmpty]: Start isEmpty. Operand 9933 states and 26714 transitions. [2021-07-13 19:06:52,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:06:52,896 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:52,897 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:52,897 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable309 [2021-07-13 19:06:52,897 INFO L430 AbstractCegarLoop]: === Iteration 311 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:52,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:52,897 INFO L82 PathProgramCache]: Analyzing trace with hash 214154152, now seen corresponding path program 302 times [2021-07-13 19:06:52,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:52,897 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977857635] [2021-07-13 19:06:52,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:52,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:53,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:53,238 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:53,238 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977857635] [2021-07-13 19:06:53,238 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977857635] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:53,239 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:53,239 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:06:53,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249265707] [2021-07-13 19:06:53,239 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:06:53,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:53,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:06:53,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:06:53,239 INFO L87 Difference]: Start difference. First operand 9933 states and 26714 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:54,008 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:06:54,157 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:06:54,349 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:06:54,549 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:06:54,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:54,703 INFO L93 Difference]: Finished difference Result 18713 states and 48902 transitions. [2021-07-13 19:06:54,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:06:54,703 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:06:54,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:54,732 INFO L225 Difference]: With dead ends: 18713 [2021-07-13 19:06:54,733 INFO L226 Difference]: Without dead ends: 18713 [2021-07-13 19:06:54,733 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1340.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:06:54,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18713 states. [2021-07-13 19:06:54,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18713 to 9869. [2021-07-13 19:06:54,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9869 states, 9867 states have (on average 2.6887605148474716) internal successors, (26530), 9868 states have internal predecessors, (26530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:54,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9869 states to 9869 states and 26530 transitions. [2021-07-13 19:06:54,943 INFO L78 Accepts]: Start accepts. Automaton has 9869 states and 26530 transitions. Word has length 114 [2021-07-13 19:06:54,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:54,943 INFO L482 AbstractCegarLoop]: Abstraction has 9869 states and 26530 transitions. [2021-07-13 19:06:54,943 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:54,944 INFO L276 IsEmpty]: Start isEmpty. Operand 9869 states and 26530 transitions. [2021-07-13 19:06:54,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:06:54,955 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:54,955 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:54,955 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable310 [2021-07-13 19:06:54,955 INFO L430 AbstractCegarLoop]: === Iteration 312 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:54,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:54,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1112515556, now seen corresponding path program 303 times [2021-07-13 19:06:54,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:54,956 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843196458] [2021-07-13 19:06:54,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:54,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:55,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:55,292 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:55,292 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843196458] [2021-07-13 19:06:55,292 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843196458] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:55,292 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:55,292 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:06:55,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46162544] [2021-07-13 19:06:55,292 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:06:55,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:55,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:06:55,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:06:55,292 INFO L87 Difference]: Start difference. First operand 9869 states and 26530 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:56,081 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:06:56,251 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:06:56,438 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:06:56,633 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:06:56,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:56,779 INFO L93 Difference]: Finished difference Result 17377 states and 45497 transitions. [2021-07-13 19:06:56,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:06:56,779 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:06:56,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:56,803 INFO L225 Difference]: With dead ends: 17377 [2021-07-13 19:06:56,803 INFO L226 Difference]: Without dead ends: 17377 [2021-07-13 19:06:56,804 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1395.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:06:56,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17377 states. [2021-07-13 19:06:56,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17377 to 9933. [2021-07-13 19:06:56,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9933 states, 9931 states have (on average 2.689960729030309) internal successors, (26714), 9932 states have internal predecessors, (26714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:56,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9933 states to 9933 states and 26714 transitions. [2021-07-13 19:06:56,997 INFO L78 Accepts]: Start accepts. Automaton has 9933 states and 26714 transitions. Word has length 114 [2021-07-13 19:06:56,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:56,997 INFO L482 AbstractCegarLoop]: Abstraction has 9933 states and 26714 transitions. [2021-07-13 19:06:56,997 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:56,997 INFO L276 IsEmpty]: Start isEmpty. Operand 9933 states and 26714 transitions. [2021-07-13 19:06:57,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:06:57,009 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:57,009 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:57,009 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable311 [2021-07-13 19:06:57,009 INFO L430 AbstractCegarLoop]: === Iteration 313 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:57,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:57,010 INFO L82 PathProgramCache]: Analyzing trace with hash 863968576, now seen corresponding path program 304 times [2021-07-13 19:06:57,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:57,010 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137537540] [2021-07-13 19:06:57,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:57,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:57,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:57,344 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:57,344 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137537540] [2021-07-13 19:06:57,344 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137537540] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:57,344 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:57,344 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:06:57,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577190364] [2021-07-13 19:06:57,344 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:06:57,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:57,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:06:57,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:06:57,344 INFO L87 Difference]: Start difference. First operand 9933 states and 26714 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:58,105 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:06:58,277 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:06:58,483 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:06:58,680 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:06:58,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:58,818 INFO L93 Difference]: Finished difference Result 17217 states and 45095 transitions. [2021-07-13 19:06:58,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:06:58,818 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:06:58,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:58,841 INFO L225 Difference]: With dead ends: 17217 [2021-07-13 19:06:58,841 INFO L226 Difference]: Without dead ends: 17217 [2021-07-13 19:06:58,842 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1383.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:06:58,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17217 states. [2021-07-13 19:06:58,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17217 to 9917. [2021-07-13 19:06:59,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9917 states, 9915 states have (on average 2.6896621280887545) internal successors, (26668), 9916 states have internal predecessors, (26668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:59,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9917 states to 9917 states and 26668 transitions. [2021-07-13 19:06:59,018 INFO L78 Accepts]: Start accepts. Automaton has 9917 states and 26668 transitions. Word has length 114 [2021-07-13 19:06:59,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:59,018 INFO L482 AbstractCegarLoop]: Abstraction has 9917 states and 26668 transitions. [2021-07-13 19:06:59,018 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:59,018 INFO L276 IsEmpty]: Start isEmpty. Operand 9917 states and 26668 transitions. [2021-07-13 19:06:59,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:06:59,029 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:59,029 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:59,029 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable312 [2021-07-13 19:06:59,029 INFO L430 AbstractCegarLoop]: === Iteration 314 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:59,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:59,029 INFO L82 PathProgramCache]: Analyzing trace with hash -292848728, now seen corresponding path program 305 times [2021-07-13 19:06:59,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:59,030 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387668636] [2021-07-13 19:06:59,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:59,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:59,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:59,361 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:59,362 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387668636] [2021-07-13 19:06:59,362 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387668636] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:59,362 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:59,362 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:06:59,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884881129] [2021-07-13 19:06:59,362 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:06:59,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:59,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:06:59,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:06:59,362 INFO L87 Difference]: Start difference. First operand 9917 states and 26668 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:00,147 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:07:00,295 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:07:00,490 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:07:00,694 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:07:00,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:07:00,848 INFO L93 Difference]: Finished difference Result 17505 states and 45923 transitions. [2021-07-13 19:07:00,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:07:00,849 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:07:00,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:07:00,873 INFO L225 Difference]: With dead ends: 17505 [2021-07-13 19:07:00,874 INFO L226 Difference]: Without dead ends: 17505 [2021-07-13 19:07:00,874 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1345.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:07:00,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17505 states. [2021-07-13 19:07:01,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17505 to 9885. [2021-07-13 19:07:01,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9885 states, 9883 states have (on average 2.6890620257006983) internal successors, (26576), 9884 states have internal predecessors, (26576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:01,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9885 states to 9885 states and 26576 transitions. [2021-07-13 19:07:01,114 INFO L78 Accepts]: Start accepts. Automaton has 9885 states and 26576 transitions. Word has length 114 [2021-07-13 19:07:01,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:07:01,114 INFO L482 AbstractCegarLoop]: Abstraction has 9885 states and 26576 transitions. [2021-07-13 19:07:01,114 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:01,114 INFO L276 IsEmpty]: Start isEmpty. Operand 9885 states and 26576 transitions. [2021-07-13 19:07:01,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:07:01,124 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:07:01,124 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:07:01,124 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313 [2021-07-13 19:07:01,124 INFO L430 AbstractCegarLoop]: === Iteration 315 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:07:01,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:07:01,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1415334410, now seen corresponding path program 306 times [2021-07-13 19:07:01,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:07:01,125 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486205950] [2021-07-13 19:07:01,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:07:01,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:07:01,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:07:01,512 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:07:01,512 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486205950] [2021-07-13 19:07:01,512 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486205950] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:07:01,512 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:07:01,512 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:07:01,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863259782] [2021-07-13 19:07:01,512 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:07:01,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:07:01,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:07:01,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:07:01,513 INFO L87 Difference]: Start difference. First operand 9885 states and 26576 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:02,290 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-07-13 19:07:02,437 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:07:02,630 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:07:02,831 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:07:02,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:07:02,972 INFO L93 Difference]: Finished difference Result 14220 states and 37459 transitions. [2021-07-13 19:07:02,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:07:02,972 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:07:02,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:07:02,992 INFO L225 Difference]: With dead ends: 14220 [2021-07-13 19:07:02,992 INFO L226 Difference]: Without dead ends: 14220 [2021-07-13 19:07:02,992 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1371.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:07:03,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14220 states. [2021-07-13 19:07:03,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14220 to 9805. [2021-07-13 19:07:03,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9805 states, 9803 states have (on average 2.6875446291951444) internal successors, (26346), 9804 states have internal predecessors, (26346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:03,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9805 states to 9805 states and 26346 transitions. [2021-07-13 19:07:03,154 INFO L78 Accepts]: Start accepts. Automaton has 9805 states and 26346 transitions. Word has length 114 [2021-07-13 19:07:03,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:07:03,154 INFO L482 AbstractCegarLoop]: Abstraction has 9805 states and 26346 transitions. [2021-07-13 19:07:03,154 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:03,154 INFO L276 IsEmpty]: Start isEmpty. Operand 9805 states and 26346 transitions. [2021-07-13 19:07:03,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:07:03,165 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:07:03,165 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:07:03,165 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable314 [2021-07-13 19:07:03,165 INFO L430 AbstractCegarLoop]: === Iteration 316 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:07:03,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:07:03,165 INFO L82 PathProgramCache]: Analyzing trace with hash -352295476, now seen corresponding path program 307 times [2021-07-13 19:07:03,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:07:03,165 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169437394] [2021-07-13 19:07:03,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:07:03,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:07:03,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:07:03,556 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:07:03,556 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169437394] [2021-07-13 19:07:03,557 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169437394] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:07:03,557 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:07:03,557 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:07:03,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240388933] [2021-07-13 19:07:03,557 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:07:03,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:07:03,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:07:03,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:07:03,557 INFO L87 Difference]: Start difference. First operand 9805 states and 26346 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:04,367 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:07:04,541 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:07:04,715 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:07:04,915 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:07:05,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:07:05,060 INFO L93 Difference]: Finished difference Result 14911 states and 39526 transitions. [2021-07-13 19:07:05,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:07:05,061 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:07:05,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:07:05,083 INFO L225 Difference]: With dead ends: 14911 [2021-07-13 19:07:05,083 INFO L226 Difference]: Without dead ends: 14911 [2021-07-13 19:07:05,083 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1433.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:07:05,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14911 states. [2021-07-13 19:07:05,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14911 to 9821. [2021-07-13 19:07:05,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9821 states, 9819 states have (on average 2.68785008656686) internal successors, (26392), 9820 states have internal predecessors, (26392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:05,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9821 states to 9821 states and 26392 transitions. [2021-07-13 19:07:05,247 INFO L78 Accepts]: Start accepts. Automaton has 9821 states and 26392 transitions. Word has length 114 [2021-07-13 19:07:05,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:07:05,247 INFO L482 AbstractCegarLoop]: Abstraction has 9821 states and 26392 transitions. [2021-07-13 19:07:05,247 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:05,247 INFO L276 IsEmpty]: Start isEmpty. Operand 9821 states and 26392 transitions. [2021-07-13 19:07:05,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:07:05,258 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:07:05,258 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:07:05,258 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315 [2021-07-13 19:07:05,258 INFO L430 AbstractCegarLoop]: === Iteration 317 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:07:05,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:07:05,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1857292874, now seen corresponding path program 308 times [2021-07-13 19:07:05,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:07:05,259 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364052185] [2021-07-13 19:07:05,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:07:05,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:07:05,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:07:05,588 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:07:05,588 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364052185] [2021-07-13 19:07:05,588 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364052185] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:07:05,588 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:07:05,588 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:07:05,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086763594] [2021-07-13 19:07:05,589 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:07:05,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:07:05,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:07:05,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:07:05,589 INFO L87 Difference]: Start difference. First operand 9821 states and 26392 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:06,348 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:07:06,516 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:07:06,699 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:07:06,892 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:07:07,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:07:07,061 INFO L93 Difference]: Finished difference Result 14489 states and 38012 transitions. [2021-07-13 19:07:07,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:07:07,062 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:07:07,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:07:07,083 INFO L225 Difference]: With dead ends: 14489 [2021-07-13 19:07:07,083 INFO L226 Difference]: Without dead ends: 14489 [2021-07-13 19:07:07,083 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1352.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:07:07,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14489 states. [2021-07-13 19:07:07,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14489 to 9805. [2021-07-13 19:07:07,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9805 states, 9803 states have (on average 2.6875446291951444) internal successors, (26346), 9804 states have internal predecessors, (26346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:07,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9805 states to 9805 states and 26346 transitions. [2021-07-13 19:07:07,250 INFO L78 Accepts]: Start accepts. Automaton has 9805 states and 26346 transitions. Word has length 114 [2021-07-13 19:07:07,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:07:07,250 INFO L482 AbstractCegarLoop]: Abstraction has 9805 states and 26346 transitions. [2021-07-13 19:07:07,250 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:07,250 INFO L276 IsEmpty]: Start isEmpty. Operand 9805 states and 26346 transitions. [2021-07-13 19:07:07,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:07:07,264 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:07:07,265 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:07:07,265 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable316 [2021-07-13 19:07:07,265 INFO L430 AbstractCegarLoop]: === Iteration 318 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:07:07,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:07:07,265 INFO L82 PathProgramCache]: Analyzing trace with hash 218179500, now seen corresponding path program 309 times [2021-07-13 19:07:07,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:07:07,265 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176167494] [2021-07-13 19:07:07,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:07:07,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:07:07,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:07:07,591 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:07:07,591 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176167494] [2021-07-13 19:07:07,591 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176167494] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:07:07,591 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:07:07,591 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:07:07,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043813427] [2021-07-13 19:07:07,592 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:07:07,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:07:07,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:07:07,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:07:07,592 INFO L87 Difference]: Start difference. First operand 9805 states and 26346 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:08,374 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-07-13 19:07:08,526 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-13 19:07:08,715 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:07:08,916 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:07:09,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:07:09,055 INFO L93 Difference]: Finished difference Result 11967 states and 31505 transitions. [2021-07-13 19:07:09,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:07:09,056 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:07:09,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:07:09,071 INFO L225 Difference]: With dead ends: 11967 [2021-07-13 19:07:09,072 INFO L226 Difference]: Without dead ends: 11967 [2021-07-13 19:07:09,072 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1338.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:07:09,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11967 states. [2021-07-13 19:07:09,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11967 to 9597. [2021-07-13 19:07:09,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9597 states, 9595 states have (on average 2.682855653986451) internal successors, (25742), 9596 states have internal predecessors, (25742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:09,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9597 states to 9597 states and 25742 transitions. [2021-07-13 19:07:09,217 INFO L78 Accepts]: Start accepts. Automaton has 9597 states and 25742 transitions. Word has length 114 [2021-07-13 19:07:09,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:07:09,217 INFO L482 AbstractCegarLoop]: Abstraction has 9597 states and 25742 transitions. [2021-07-13 19:07:09,217 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:09,217 INFO L276 IsEmpty]: Start isEmpty. Operand 9597 states and 25742 transitions. [2021-07-13 19:07:09,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:07:09,228 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:07:09,228 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:07:09,228 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable317 [2021-07-13 19:07:09,228 INFO L430 AbstractCegarLoop]: === Iteration 319 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:07:09,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:07:09,228 INFO L82 PathProgramCache]: Analyzing trace with hash 516580174, now seen corresponding path program 310 times [2021-07-13 19:07:09,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:07:09,228 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098692667] [2021-07-13 19:07:09,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:07:09,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:07:09,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:07:09,587 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:07:09,587 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098692667] [2021-07-13 19:07:09,588 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098692667] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:07:09,588 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:07:09,588 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:07:09,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558087647] [2021-07-13 19:07:09,588 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:07:09,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:07:09,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:07:09,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:07:09,588 INFO L87 Difference]: Start difference. First operand 9597 states and 25742 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:10,391 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:07:10,548 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:07:10,723 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:07:10,921 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:07:11,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:07:11,077 INFO L93 Difference]: Finished difference Result 15529 states and 40553 transitions. [2021-07-13 19:07:11,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:07:11,077 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:07:11,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:07:11,099 INFO L225 Difference]: With dead ends: 15529 [2021-07-13 19:07:11,100 INFO L226 Difference]: Without dead ends: 15529 [2021-07-13 19:07:11,100 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1383.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:07:11,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15529 states. [2021-07-13 19:07:11,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15529 to 9629. [2021-07-13 19:07:11,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9629 states, 9627 states have (on average 2.683494338838683) internal successors, (25834), 9628 states have internal predecessors, (25834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:11,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9629 states to 9629 states and 25834 transitions. [2021-07-13 19:07:11,266 INFO L78 Accepts]: Start accepts. Automaton has 9629 states and 25834 transitions. Word has length 114 [2021-07-13 19:07:11,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:07:11,266 INFO L482 AbstractCegarLoop]: Abstraction has 9629 states and 25834 transitions. [2021-07-13 19:07:11,266 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:11,266 INFO L276 IsEmpty]: Start isEmpty. Operand 9629 states and 25834 transitions. [2021-07-13 19:07:11,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:07:11,277 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:07:11,277 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:07:11,277 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable318 [2021-07-13 19:07:11,277 INFO L430 AbstractCegarLoop]: === Iteration 320 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:07:11,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:07:11,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1568798772, now seen corresponding path program 311 times [2021-07-13 19:07:11,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:07:11,277 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300132464] [2021-07-13 19:07:11,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:07:11,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:07:11,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:07:11,590 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:07:11,590 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300132464] [2021-07-13 19:07:11,590 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300132464] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:07:11,590 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:07:11,590 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:07:11,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391728085] [2021-07-13 19:07:11,590 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:07:11,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:07:11,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:07:11,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:07:11,591 INFO L87 Difference]: Start difference. First operand 9629 states and 25834 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:12,408 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:07:12,565 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:07:12,755 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:07:12,949 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:07:13,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:07:13,119 INFO L93 Difference]: Finished difference Result 16342 states and 42357 transitions. [2021-07-13 19:07:13,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:07:13,119 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:07:13,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:07:13,145 INFO L225 Difference]: With dead ends: 16342 [2021-07-13 19:07:13,145 INFO L226 Difference]: Without dead ends: 16342 [2021-07-13 19:07:13,145 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1368.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:07:13,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16342 states. [2021-07-13 19:07:13,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16342 to 9613. [2021-07-13 19:07:13,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9613 states, 9611 states have (on average 2.6831755280407865) internal successors, (25788), 9612 states have internal predecessors, (25788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:13,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9613 states to 9613 states and 25788 transitions. [2021-07-13 19:07:13,367 INFO L78 Accepts]: Start accepts. Automaton has 9613 states and 25788 transitions. Word has length 114 [2021-07-13 19:07:13,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:07:13,367 INFO L482 AbstractCegarLoop]: Abstraction has 9613 states and 25788 transitions. [2021-07-13 19:07:13,367 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:13,367 INFO L276 IsEmpty]: Start isEmpty. Operand 9613 states and 25788 transitions. [2021-07-13 19:07:13,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:07:13,379 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:07:13,379 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:07:13,379 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable319 [2021-07-13 19:07:13,380 INFO L430 AbstractCegarLoop]: === Iteration 321 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:07:13,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:07:13,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1843023570, now seen corresponding path program 312 times [2021-07-13 19:07:13,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:07:13,380 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729049586] [2021-07-13 19:07:13,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:07:13,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:07:13,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:07:13,693 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:07:13,694 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729049586] [2021-07-13 19:07:13,694 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729049586] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:07:13,694 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:07:13,694 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:07:13,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022023951] [2021-07-13 19:07:13,694 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:07:13,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:07:13,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:07:13,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:07:13,694 INFO L87 Difference]: Start difference. First operand 9613 states and 25788 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:14,462 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:07:14,620 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:07:14,802 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:07:14,997 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:07:15,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:07:15,141 INFO L93 Difference]: Finished difference Result 15668 states and 40770 transitions. [2021-07-13 19:07:15,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:07:15,141 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:07:15,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:07:15,164 INFO L225 Difference]: With dead ends: 15668 [2021-07-13 19:07:15,164 INFO L226 Difference]: Without dead ends: 15668 [2021-07-13 19:07:15,164 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1347.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:07:15,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15668 states. [2021-07-13 19:07:15,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15668 to 9629. [2021-07-13 19:07:15,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9629 states, 9627 states have (on average 2.683494338838683) internal successors, (25834), 9628 states have internal predecessors, (25834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:15,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9629 states to 9629 states and 25834 transitions. [2021-07-13 19:07:15,375 INFO L78 Accepts]: Start accepts. Automaton has 9629 states and 25834 transitions. Word has length 114 [2021-07-13 19:07:15,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:07:15,375 INFO L482 AbstractCegarLoop]: Abstraction has 9629 states and 25834 transitions. [2021-07-13 19:07:15,375 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:15,375 INFO L276 IsEmpty]: Start isEmpty. Operand 9629 states and 25834 transitions. [2021-07-13 19:07:15,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:07:15,386 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:07:15,386 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:07:15,387 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable320 [2021-07-13 19:07:15,387 INFO L430 AbstractCegarLoop]: === Iteration 322 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:07:15,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:07:15,387 INFO L82 PathProgramCache]: Analyzing trace with hash -2091570550, now seen corresponding path program 313 times [2021-07-13 19:07:15,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:07:15,387 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88472063] [2021-07-13 19:07:15,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:07:15,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:07:15,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:07:15,691 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:07:15,692 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88472063] [2021-07-13 19:07:15,692 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88472063] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:07:15,692 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:07:15,692 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:07:15,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995313650] [2021-07-13 19:07:15,692 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:07:15,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:07:15,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:07:15,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:07:15,692 INFO L87 Difference]: Start difference. First operand 9629 states and 25834 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:16,479 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:07:16,639 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:07:16,814 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:07:17,011 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:07:17,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:07:17,144 INFO L93 Difference]: Finished difference Result 12733 states and 33296 transitions. [2021-07-13 19:07:17,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:07:17,144 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:07:17,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:07:17,162 INFO L225 Difference]: With dead ends: 12733 [2021-07-13 19:07:17,162 INFO L226 Difference]: Without dead ends: 12733 [2021-07-13 19:07:17,163 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1325.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:07:17,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12733 states. [2021-07-13 19:07:17,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12733 to 9565. [2021-07-13 19:07:17,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9565 states, 9563 states have (on average 2.6822126947610583) internal successors, (25650), 9564 states have internal predecessors, (25650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:17,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9565 states to 9565 states and 25650 transitions. [2021-07-13 19:07:17,323 INFO L78 Accepts]: Start accepts. Automaton has 9565 states and 25650 transitions. Word has length 114 [2021-07-13 19:07:17,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:07:17,323 INFO L482 AbstractCegarLoop]: Abstraction has 9565 states and 25650 transitions. [2021-07-13 19:07:17,323 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:17,324 INFO L276 IsEmpty]: Start isEmpty. Operand 9565 states and 25650 transitions. [2021-07-13 19:07:17,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:07:17,335 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:07:17,335 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:07:17,335 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable321 [2021-07-13 19:07:17,336 INFO L430 AbstractCegarLoop]: === Iteration 323 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:07:17,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:07:17,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1211222100, now seen corresponding path program 314 times [2021-07-13 19:07:17,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:07:17,336 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078199284] [2021-07-13 19:07:17,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:07:17,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:07:17,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:07:17,644 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:07:17,644 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078199284] [2021-07-13 19:07:17,644 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078199284] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:07:17,644 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:07:17,645 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:07:17,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125116341] [2021-07-13 19:07:17,645 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:07:17,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:07:17,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:07:17,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:07:17,645 INFO L87 Difference]: Start difference. First operand 9565 states and 25650 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:18,483 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:07:18,643 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:07:18,820 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-13 19:07:19,018 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-07-13 19:07:19,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:07:19,172 INFO L93 Difference]: Finished difference Result 16087 states and 42083 transitions. [2021-07-13 19:07:19,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:07:19,173 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:07:19,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:07:19,195 INFO L225 Difference]: With dead ends: 16087 [2021-07-13 19:07:19,195 INFO L226 Difference]: Without dead ends: 16087 [2021-07-13 19:07:19,195 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1376.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:07:19,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16087 states. [2021-07-13 19:07:19,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16087 to 9629. [2021-07-13 19:07:19,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9629 states, 9627 states have (on average 2.683494338838683) internal successors, (25834), 9628 states have internal predecessors, (25834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:19,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9629 states to 9629 states and 25834 transitions. [2021-07-13 19:07:19,368 INFO L78 Accepts]: Start accepts. Automaton has 9629 states and 25834 transitions. Word has length 114 [2021-07-13 19:07:19,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:07:19,368 INFO L482 AbstractCegarLoop]: Abstraction has 9629 states and 25834 transitions. [2021-07-13 19:07:19,368 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:19,368 INFO L276 IsEmpty]: Start isEmpty. Operand 9629 states and 25834 transitions. [2021-07-13 19:07:19,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:07:19,379 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:07:19,379 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:07:19,379 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable322 [2021-07-13 19:07:19,379 INFO L430 AbstractCegarLoop]: === Iteration 324 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:07:19,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:07:19,379 INFO L82 PathProgramCache]: Analyzing trace with hash 998366250, now seen corresponding path program 315 times [2021-07-13 19:07:19,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:07:19,380 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140545527] [2021-07-13 19:07:19,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:07:19,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:07:19,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:07:19,691 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:07:19,691 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140545527] [2021-07-13 19:07:19,691 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140545527] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:07:19,691 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:07:19,691 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:07:19,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036840506] [2021-07-13 19:07:19,691 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:07:19,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:07:19,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:07:19,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:07:19,692 INFO L87 Difference]: Start difference. First operand 9629 states and 25834 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:20,471 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:07:20,627 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:07:20,814 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:07:21,032 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:07:21,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:07:21,179 INFO L93 Difference]: Finished difference Result 16900 states and 43887 transitions. [2021-07-13 19:07:21,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:07:21,179 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:07:21,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:07:21,203 INFO L225 Difference]: With dead ends: 16900 [2021-07-13 19:07:21,203 INFO L226 Difference]: Without dead ends: 16900 [2021-07-13 19:07:21,203 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1349.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:07:21,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16900 states. [2021-07-13 19:07:21,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16900 to 9613. [2021-07-13 19:07:21,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9613 states, 9611 states have (on average 2.6831755280407865) internal successors, (25788), 9612 states have internal predecessors, (25788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:21,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9613 states to 9613 states and 25788 transitions. [2021-07-13 19:07:21,393 INFO L78 Accepts]: Start accepts. Automaton has 9613 states and 25788 transitions. Word has length 114 [2021-07-13 19:07:21,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:07:21,393 INFO L482 AbstractCegarLoop]: Abstraction has 9613 states and 25788 transitions. [2021-07-13 19:07:21,393 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:21,393 INFO L276 IsEmpty]: Start isEmpty. Operand 9613 states and 25788 transitions. [2021-07-13 19:07:21,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-07-13 19:07:21,405 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:07:21,405 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:07:21,405 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable323 [2021-07-13 19:07:21,405 INFO L430 AbstractCegarLoop]: === Iteration 325 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:07:21,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:07:21,405 INFO L82 PathProgramCache]: Analyzing trace with hash 724141452, now seen corresponding path program 316 times [2021-07-13 19:07:21,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:07:21,405 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836896591] [2021-07-13 19:07:21,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:07:21,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:07:21,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:07:21,715 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:07:21,715 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836896591] [2021-07-13 19:07:21,716 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836896591] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:07:21,716 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:07:21,716 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 19:07:21,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774048392] [2021-07-13 19:07:21,716 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 19:07:21,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:07:21,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 19:07:21,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-07-13 19:07:21,716 INFO L87 Difference]: Start difference. First operand 9613 states and 25788 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:22,482 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-07-13 19:07:22,640 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-07-13 19:07:22,825 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-13 19:07:23,018 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-07-13 19:07:23,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:07:23,182 INFO L93 Difference]: Finished difference Result 20013 states and 51837 transitions. [2021-07-13 19:07:23,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 19:07:23,183 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-07-13 19:07:23,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:07:23,212 INFO L225 Difference]: With dead ends: 20013 [2021-07-13 19:07:23,212 INFO L226 Difference]: Without dead ends: 20013 [2021-07-13 19:07:23,212 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1342.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-07-13 19:07:23,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20013 states. Received shutdown request... [2021-07-13 19:07:23,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20013 to 9629. [2021-07-13 19:07:23,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9629 states, 9627 states have (on average 2.683494338838683) internal successors, (25834), 9628 states have internal predecessors, (25834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:23,467 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable324 [2021-07-13 19:07:23,467 WARN L547 AbstractCegarLoop]: Verification canceled [2021-07-13 19:07:23,469 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-13 19:07:23,470 WARN L196 ceAbstractionStarter]: Timeout [2021-07-13 19:07:23,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 07:07:23 BasicIcfg [2021-07-13 19:07:23,471 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-13 19:07:23,471 INFO L168 Benchmark]: Toolchain (without parser) took 707205.13 ms. Allocated memory was 199.2 MB in the beginning and 1.6 GB in the end (delta: 1.4 GB). Free memory was 160.0 MB in the beginning and 1.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.1 GB. Max. memory is 8.0 GB. [2021-07-13 19:07:23,471 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 199.2 MB. Free memory is still 179.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-13 19:07:23,471 INFO L168 Benchmark]: CACSL2BoogieTranslator took 966.32 ms. Allocated memory is still 199.2 MB. Free memory was 159.7 MB in the beginning and 140.0 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-07-13 19:07:23,471 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.30 ms. Allocated memory is still 199.2 MB. Free memory was 140.0 MB in the beginning and 136.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-07-13 19:07:23,472 INFO L168 Benchmark]: Boogie Preprocessor took 46.22 ms. Allocated memory is still 199.2 MB. Free memory was 136.4 MB in the beginning and 133.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-13 19:07:23,472 INFO L168 Benchmark]: RCFGBuilder took 757.86 ms. Allocated memory is still 199.2 MB. Free memory was 133.7 MB in the beginning and 85.5 MB in the end (delta: 48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 8.0 GB. [2021-07-13 19:07:23,472 INFO L168 Benchmark]: TraceAbstraction took 705363.13 ms. Allocated memory was 199.2 MB in the beginning and 1.6 GB in the end (delta: 1.4 GB). Free memory was 85.0 MB in the beginning and 1.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.1 GB. Max. memory is 8.0 GB. [2021-07-13 19:07:23,472 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 199.2 MB. Free memory is still 179.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 966.32 ms. Allocated memory is still 199.2 MB. Free memory was 159.7 MB in the beginning and 140.0 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 63.30 ms. Allocated memory is still 199.2 MB. Free memory was 140.0 MB in the beginning and 136.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 46.22 ms. Allocated memory is still 199.2 MB. Free memory was 136.4 MB in the beginning and 133.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 757.86 ms. Allocated memory is still 199.2 MB. Free memory was 133.7 MB in the beginning and 85.5 MB in the end (delta: 48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 705363.13 ms. Allocated memory was 199.2 MB in the beginning and 1.6 GB in the end (delta: 1.4 GB). Free memory was 85.0 MB in the beginning and 1.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.1 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 4 procedures, 178 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 705201.0ms, OverallIterations: 325, TraceHistogramMax: 1, EmptinessCheckTime: 3894.8ms, AutomataDifference: 510602.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 274.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 125302 SDtfs, 388733 SDslu, 686711 SDs, 0 SdLazy, 178771 SolverSat, 2356 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 94607.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11795 GetRequests, 1287 SyntacticMatches, 639 SemanticMatches, 9869 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23551 ImplicationChecksByTransitivity, 447516.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=10765occurred in iteration=55, InterpolantAutomatonStates: 5695, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 71114.6ms AutomataMinimizationTime, 325 MinimizatonAttempts, 3356072 StatesRemovedByMinimization, 323 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 507.3ms SsaConstructionTime, 3929.7ms SatisfiabilityAnalysisTime, 112314.2ms InterpolantComputationTime, 36764 NumberOfCodeBlocks, 36764 NumberOfCodeBlocksAsserted, 325 NumberOfCheckSat, 36439 ConstructedInterpolants, 0 QuantifiedInterpolants, 231784 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 325 InterpolantComputations, 325 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown