/usr/bin/java -Xmx16000000000 -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 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-10 17:49:31,339 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-10 17:49:31,342 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-10 17:49:31,375 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-10 17:49:31,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-10 17:49:31,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-10 17:49:31,412 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-10 17:49:31,417 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 [2021-03-10 17:49:31,455 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-10 17:49:31,455 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-10 17:49:31,456 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-10 17:49:31,456 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-10 17:49:31,458 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-10 17:49:31,459 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-10 17:49:31,459 INFO L138 SettingsManager]: * Use SBE=true [2021-03-10 17:49:31,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-10 17:49:31,459 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-10 17:49:31,459 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-10 17:49:31,460 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-10 17:49:31,460 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-10 17:49:31,460 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-10 17:49:31,460 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-10 17:49:31,460 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-10 17:49:31,461 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-10 17:49:31,461 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-10 17:49:31,461 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-10 17:49:31,461 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-10 17:49:31,461 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-10 17:49:31,461 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-10 17:49:31,461 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-10 17:49:31,462 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-10 17:49:31,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 17:49:31,462 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-10 17:49:31,462 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-10 17:49:31,462 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-10 17:49:31,462 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-10 17:49:31,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-10 17:49:31,463 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-10 17:49:31,463 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-10 17:49:31,463 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-10 17:49:31,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-10 17:49:31,781 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-10 17:49:31,783 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-10 17:49:31,784 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-10 17:49:31,784 INFO L275 PluginConnector]: CDTParser initialized [2021-03-10 17:49:31,785 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2021-03-10 17:49:31,839 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23a83a4dd/8ae0092217414a82b87f4ef5cd8465f0/FLAGcdb70281d [2021-03-10 17:49:32,432 INFO L306 CDTParser]: Found 1 translation units. [2021-03-10 17:49:32,432 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2021-03-10 17:49:32,444 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23a83a4dd/8ae0092217414a82b87f4ef5cd8465f0/FLAGcdb70281d [2021-03-10 17:49:32,813 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23a83a4dd/8ae0092217414a82b87f4ef5cd8465f0 [2021-03-10 17:49:32,815 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-10 17:49:32,819 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-10 17:49:32,821 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-10 17:49:32,821 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-10 17:49:32,827 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-10 17:49:32,827 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 05:49:32" (1/1) ... [2021-03-10 17:49:32,829 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77d42005 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:49:32, skipping insertion in model container [2021-03-10 17:49:32,829 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 05:49:32" (1/1) ... [2021-03-10 17:49:32,835 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-10 17:49:32,890 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-10 17:49:33,331 WARN L226 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] [2021-03-10 17:49:33,358 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 17:49:33,368 INFO L203 MainTranslator]: Completed pre-run [2021-03-10 17:49:33,420 WARN L226 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] [2021-03-10 17:49:33,432 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 17:49:33,678 INFO L208 MainTranslator]: Completed translation [2021-03-10 17:49:33,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:49:33 WrapperNode [2021-03-10 17:49:33,678 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-10 17:49:33,680 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-10 17:49:33,680 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-10 17:49:33,680 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-10 17:49:33,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:49:33" (1/1) ... [2021-03-10 17:49:33,727 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:49:33" (1/1) ... [2021-03-10 17:49:33,758 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-10 17:49:33,759 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-10 17:49:33,759 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-10 17:49:33,759 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-10 17:49:33,764 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:49:33" (1/1) ... [2021-03-10 17:49:33,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:49:33" (1/1) ... [2021-03-10 17:49:33,766 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:49:33" (1/1) ... [2021-03-10 17:49:33,766 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:49:33" (1/1) ... [2021-03-10 17:49:33,776 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:49:33" (1/1) ... [2021-03-10 17:49:33,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:49:33" (1/1) ... [2021-03-10 17:49:33,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:49:33" (1/1) ... [2021-03-10 17:49:33,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-10 17:49:33,787 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-10 17:49:33,787 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-10 17:49:33,787 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-10 17:49:33,788 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:49:33" (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 [2021-03-10 17:49:33,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-10 17:49:33,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-10 17:49:33,859 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-03-10 17:49:33,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-03-10 17:49:33,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-10 17:49:33,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-10 17:49:33,859 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-03-10 17:49:33,859 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-03-10 17:49:33,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-10 17:49:33,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-10 17:49:33,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-10 17:49:33,861 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-10 17:49:34,414 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-10 17:49:34,414 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-03-10 17:49:34,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 05:49:34 BoogieIcfgContainer [2021-03-10 17:49:34,415 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-10 17:49:34,417 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-10 17:49:34,417 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-10 17:49:34,419 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-10 17:49:34,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.03 05:49:32" (1/3) ... [2021-03-10 17:49:34,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f52fedb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 05:49:34, skipping insertion in model container [2021-03-10 17:49:34,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:49:33" (2/3) ... [2021-03-10 17:49:34,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f52fedb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 05:49:34, skipping insertion in model container [2021-03-10 17:49:34,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 05:49:34" (3/3) ... [2021-03-10 17:49:34,421 INFO L111 eAbstractionObserver]: Analyzing ICFG race-2_1-container_of.i [2021-03-10 17:49:34,425 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-10 17:49:34,425 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-10 17:49:34,429 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2021-03-10 17:49:34,430 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-10 17:49:34,459 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,459 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,459 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,459 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,459 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,460 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,460 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,460 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,460 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,460 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,460 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,460 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,460 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,461 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,461 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,461 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,461 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,461 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,461 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,461 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,461 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,462 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,462 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,462 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,462 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,462 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,462 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,462 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,462 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,462 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,463 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,463 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,463 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,463 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,463 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,463 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,463 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,463 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,463 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,464 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,464 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,464 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,464 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,464 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,464 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,464 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,465 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,465 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,465 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,465 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,465 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,465 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,465 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,465 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,466 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,466 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,466 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,466 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,466 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,466 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,466 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,466 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,467 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,467 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,467 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,467 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,467 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,467 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,467 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,467 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,468 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,468 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,468 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,468 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,468 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,468 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,468 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,468 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,469 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,469 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,469 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,469 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,469 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,469 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,469 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,469 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,469 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,470 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,470 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,470 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,470 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,470 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,470 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,470 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,470 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,470 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,470 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,471 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,471 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,471 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,471 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,471 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,471 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,471 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,471 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,472 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,472 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,472 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,472 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,472 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,472 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,472 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,472 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,473 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,473 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,473 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,473 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,473 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,473 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,473 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,473 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,474 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,474 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,474 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,474 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,474 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,474 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,474 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,474 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,474 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,475 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,475 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,475 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,475 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,475 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,475 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,475 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,475 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,475 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,476 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,477 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,477 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,477 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,478 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,478 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,478 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,478 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,478 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,478 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,478 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,478 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,478 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,482 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,483 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,483 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,483 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,483 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,483 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,483 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,483 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,484 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,484 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,484 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,484 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:49:34,492 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-03-10 17:49:34,507 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-03-10 17:49:34,529 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-10 17:49:34,529 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-10 17:49:34,529 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-10 17:49:34,529 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-10 17:49:34,529 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-10 17:49:34,530 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-10 17:49:34,530 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-10 17:49:34,530 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-10 17:49:34,540 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 161 places, 165 transitions, 352 flow [2021-03-10 17:49:34,873 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9085 states, 9074 states have (on average 2.8522151201234296) internal successors, (25881), 9084 states have internal predecessors, (25881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:34,908 INFO L276 IsEmpty]: Start isEmpty. Operand has 9085 states, 9074 states have (on average 2.8522151201234296) internal successors, (25881), 9084 states have internal predecessors, (25881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:34,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-03-10 17:49:34,913 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:49:34,914 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:49:34,914 INFO L428 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]=== [2021-03-10 17:49:34,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:49:34,919 INFO L82 PathProgramCache]: Analyzing trace with hash -1372983988, now seen corresponding path program 1 times [2021-03-10 17:49:34,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:49:34,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044841263] [2021-03-10 17:49:34,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:49:35,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:49:35,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:49:35,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044841263] [2021-03-10 17:49:35,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:49:35,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 17:49:35,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937147514] [2021-03-10 17:49:35,333 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 17:49:35,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:49:35,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 17:49:35,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 17:49:35,359 INFO L87 Difference]: Start difference. First operand has 9085 states, 9074 states have (on average 2.8522151201234296) internal successors, (25881), 9084 states have internal predecessors, (25881), 0 states have call successors, (0), 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) [2021-03-10 17:49:35,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:49:35,630 INFO L93 Difference]: Finished difference Result 8632 states and 24131 transitions. [2021-03-10 17:49:35,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-10 17:49:35,631 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 [2021-03-10 17:49:35,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:49:35,671 INFO L225 Difference]: With dead ends: 8632 [2021-03-10 17:49:35,671 INFO L226 Difference]: Without dead ends: 7040 [2021-03-10 17:49:35,672 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 62.9ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-03-10 17:49:35,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7040 states. [2021-03-10 17:49:35,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7040 to 7039. [2021-03-10 17:49:35,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7039 states, 7032 states have (on average 2.7869738339021617) internal successors, (19598), 7038 states have internal predecessors, (19598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:35,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7039 states to 7039 states and 19598 transitions. [2021-03-10 17:49:35,987 INFO L78 Accepts]: Start accepts. Automaton has 7039 states and 19598 transitions. Word has length 36 [2021-03-10 17:49:35,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:49:35,987 INFO L480 AbstractCegarLoop]: Abstraction has 7039 states and 19598 transitions. [2021-03-10 17:49:35,988 INFO L481 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) [2021-03-10 17:49:35,988 INFO L276 IsEmpty]: Start isEmpty. Operand 7039 states and 19598 transitions. [2021-03-10 17:49:35,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-03-10 17:49:35,989 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:49:35,990 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:49:35,990 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-10 17:49:35,990 INFO L428 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]=== [2021-03-10 17:49:35,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:49:35,994 INFO L82 PathProgramCache]: Analyzing trace with hash 39219721, now seen corresponding path program 1 times [2021-03-10 17:49:35,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:49:35,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237090838] [2021-03-10 17:49:35,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:49:36,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:49:36,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:49:36,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237090838] [2021-03-10 17:49:36,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:49:36,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 17:49:36,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674305467] [2021-03-10 17:49:36,213 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 17:49:36,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:49:36,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 17:49:36,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 17:49:36,215 INFO L87 Difference]: Start difference. First operand 7039 states and 19598 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) [2021-03-10 17:49:36,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:49:36,475 INFO L93 Difference]: Finished difference Result 7041 states and 19600 transitions. [2021-03-10 17:49:36,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-10 17:49:36,476 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 [2021-03-10 17:49:36,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:49:36,503 INFO L225 Difference]: With dead ends: 7041 [2021-03-10 17:49:36,504 INFO L226 Difference]: Without dead ends: 7041 [2021-03-10 17:49:36,505 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 69.1ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-03-10 17:49:36,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7041 states. [2021-03-10 17:49:36,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7041 to 7037. [2021-03-10 17:49:36,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7037 states, 7031 states have (on average 2.787085763049353) internal successors, (19596), 7036 states have internal predecessors, (19596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:36,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7037 states to 7037 states and 19596 transitions. [2021-03-10 17:49:36,659 INFO L78 Accepts]: Start accepts. Automaton has 7037 states and 19596 transitions. Word has length 42 [2021-03-10 17:49:36,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:49:36,659 INFO L480 AbstractCegarLoop]: Abstraction has 7037 states and 19596 transitions. [2021-03-10 17:49:36,659 INFO L481 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) [2021-03-10 17:49:36,660 INFO L276 IsEmpty]: Start isEmpty. Operand 7037 states and 19596 transitions. [2021-03-10 17:49:36,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-03-10 17:49:36,662 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:49:36,663 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:49:36,663 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-10 17:49:36,663 INFO L428 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]=== [2021-03-10 17:49:36,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:49:36,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1362916787, now seen corresponding path program 1 times [2021-03-10 17:49:36,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:49:36,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503763143] [2021-03-10 17:49:36,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:49:36,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:49:36,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:49:36,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503763143] [2021-03-10 17:49:36,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:49:36,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 17:49:36,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374638654] [2021-03-10 17:49:36,743 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 17:49:36,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:49:36,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 17:49:36,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 17:49:36,744 INFO L87 Difference]: Start difference. First operand 7037 states and 19596 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) [2021-03-10 17:49:37,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:49:37,077 INFO L93 Difference]: Finished difference Result 10288 states and 28562 transitions. [2021-03-10 17:49:37,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-10 17:49:37,078 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 [2021-03-10 17:49:37,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:49:37,125 INFO L225 Difference]: With dead ends: 10288 [2021-03-10 17:49:37,125 INFO L226 Difference]: Without dead ends: 10288 [2021-03-10 17:49:37,126 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 88.7ms TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:49:37,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10288 states. [2021-03-10 17:49:37,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10288 to 7873. [2021-03-10 17:49:37,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7873 states, 7868 states have (on average 2.7869852567361466) internal successors, (21928), 7872 states have internal predecessors, (21928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:37,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7873 states to 7873 states and 21928 transitions. [2021-03-10 17:49:37,423 INFO L78 Accepts]: Start accepts. Automaton has 7873 states and 21928 transitions. Word has length 60 [2021-03-10 17:49:37,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:49:37,425 INFO L480 AbstractCegarLoop]: Abstraction has 7873 states and 21928 transitions. [2021-03-10 17:49:37,426 INFO L481 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) [2021-03-10 17:49:37,426 INFO L276 IsEmpty]: Start isEmpty. Operand 7873 states and 21928 transitions. [2021-03-10 17:49:37,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-03-10 17:49:37,432 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:49:37,432 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:49:37,433 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-10 17:49:37,433 INFO L428 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]=== [2021-03-10 17:49:37,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:49:37,433 INFO L82 PathProgramCache]: Analyzing trace with hash 849159449, now seen corresponding path program 1 times [2021-03-10 17:49:37,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:49:37,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492954507] [2021-03-10 17:49:37,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:49:37,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:49:37,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:49:37,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492954507] [2021-03-10 17:49:37,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:49:37,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 17:49:37,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148441673] [2021-03-10 17:49:37,563 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 17:49:37,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:49:37,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 17:49:37,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 17:49:37,564 INFO L87 Difference]: Start difference. First operand 7873 states and 21928 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) [2021-03-10 17:49:37,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:49:37,806 INFO L93 Difference]: Finished difference Result 11124 states and 30733 transitions. [2021-03-10 17:49:37,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-10 17:49:37,807 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 [2021-03-10 17:49:37,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:49:37,835 INFO L225 Difference]: With dead ends: 11124 [2021-03-10 17:49:37,835 INFO L226 Difference]: Without dead ends: 9335 [2021-03-10 17:49:37,835 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 64.6ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-03-10 17:49:37,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9335 states. [2021-03-10 17:49:38,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9335 to 9013. [2021-03-10 17:49:38,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9013 states, 9009 states have (on average 2.787878787878788) internal successors, (25116), 9012 states have internal predecessors, (25116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:38,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9013 states to 9013 states and 25116 transitions. [2021-03-10 17:49:38,112 INFO L78 Accepts]: Start accepts. Automaton has 9013 states and 25116 transitions. Word has length 66 [2021-03-10 17:49:38,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:49:38,114 INFO L480 AbstractCegarLoop]: Abstraction has 9013 states and 25116 transitions. [2021-03-10 17:49:38,114 INFO L481 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) [2021-03-10 17:49:38,114 INFO L276 IsEmpty]: Start isEmpty. Operand 9013 states and 25116 transitions. [2021-03-10 17:49:38,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-03-10 17:49:38,121 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:49:38,122 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:49:38,122 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-10 17:49:38,122 INFO L428 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]=== [2021-03-10 17:49:38,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:49:38,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1894542270, now seen corresponding path program 1 times [2021-03-10 17:49:38,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:49:38,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428975469] [2021-03-10 17:49:38,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:49:38,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:49:38,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:49:38,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428975469] [2021-03-10 17:49:38,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:49:38,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-10 17:49:38,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017011353] [2021-03-10 17:49:38,242 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-10 17:49:38,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:49:38,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-10 17:49:38,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-10 17:49:38,243 INFO L87 Difference]: Start difference. First operand 9013 states and 25116 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:38,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:49:38,276 INFO L93 Difference]: Finished difference Result 3188 states and 8606 transitions. [2021-03-10 17:49:38,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-10 17:49:38,277 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-03-10 17:49:38,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:49:38,281 INFO L225 Difference]: With dead ends: 3188 [2021-03-10 17:49:38,281 INFO L226 Difference]: Without dead ends: 3188 [2021-03-10 17:49:38,282 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 22.0ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-03-10 17:49:38,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3188 states. [2021-03-10 17:49:38,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3188 to 3188. [2021-03-10 17:49:38,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3188 states, 3186 states have (on average 2.7011927181418707) internal successors, (8606), 3187 states have internal predecessors, (8606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:38,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3188 states to 3188 states and 8606 transitions. [2021-03-10 17:49:38,390 INFO L78 Accepts]: Start accepts. Automaton has 3188 states and 8606 transitions. Word has length 74 [2021-03-10 17:49:38,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:49:38,390 INFO L480 AbstractCegarLoop]: Abstraction has 3188 states and 8606 transitions. [2021-03-10 17:49:38,390 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:38,390 INFO L276 IsEmpty]: Start isEmpty. Operand 3188 states and 8606 transitions. [2021-03-10 17:49:38,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:49:38,396 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:49:38,396 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:49:38,396 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-10 17:49:38,396 INFO L428 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]=== [2021-03-10 17:49:38,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:49:38,397 INFO L82 PathProgramCache]: Analyzing trace with hash 2033668337, now seen corresponding path program 1 times [2021-03-10 17:49:38,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:49:38,397 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812979540] [2021-03-10 17:49:38,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:49:38,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:49:38,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:49:38,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812979540] [2021-03-10 17:49:38,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:49:38,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:49:38,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879655310] [2021-03-10 17:49:38,616 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:49:38,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:49:38,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:49:38,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:49:38,616 INFO L87 Difference]: Start difference. First operand 3188 states and 8606 transitions. Second operand has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:38,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:49:38,778 INFO L93 Difference]: Finished difference Result 3394 states and 9000 transitions. [2021-03-10 17:49:38,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-10 17:49:38,780 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:49:38,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:49:38,786 INFO L225 Difference]: With dead ends: 3394 [2021-03-10 17:49:38,786 INFO L226 Difference]: Without dead ends: 3394 [2021-03-10 17:49:38,787 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 80.9ms TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-03-10 17:49:38,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3394 states. [2021-03-10 17:49:38,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3394 to 3349. [2021-03-10 17:49:38,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3349 states, 3347 states have (on average 2.662981774723633) internal successors, (8913), 3348 states have internal predecessors, (8913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:38,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3349 states to 3349 states and 8913 transitions. [2021-03-10 17:49:38,848 INFO L78 Accepts]: Start accepts. Automaton has 3349 states and 8913 transitions. Word has length 108 [2021-03-10 17:49:38,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:49:38,849 INFO L480 AbstractCegarLoop]: Abstraction has 3349 states and 8913 transitions. [2021-03-10 17:49:38,850 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:38,850 INFO L276 IsEmpty]: Start isEmpty. Operand 3349 states and 8913 transitions. [2021-03-10 17:49:38,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:49:38,860 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:49:38,861 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:49:38,861 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-10 17:49:38,861 INFO L428 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]=== [2021-03-10 17:49:38,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:49:38,862 INFO L82 PathProgramCache]: Analyzing trace with hash 479952555, now seen corresponding path program 1 times [2021-03-10 17:49:38,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:49:38,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609254124] [2021-03-10 17:49:38,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:49:38,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:49:39,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:49:39,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609254124] [2021-03-10 17:49:39,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:49:39,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-10 17:49:39,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629194899] [2021-03-10 17:49:39,509 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 17:49:39,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:49:39,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 17:49:39,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:49:39,510 INFO L87 Difference]: Start difference. First operand 3349 states and 8913 transitions. Second operand has 19 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:40,271 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-03-10 17:49:40,441 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2021-03-10 17:49:41,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:49:41,032 INFO L93 Difference]: Finished difference Result 4827 states and 12032 transitions. [2021-03-10 17:49:41,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-03-10 17:49:41,032 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:49:41,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:49:41,040 INFO L225 Difference]: With dead ends: 4827 [2021-03-10 17:49:41,040 INFO L226 Difference]: Without dead ends: 4827 [2021-03-10 17:49:41,041 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 1290.7ms TimeCoverageRelationStatistics Valid=338, Invalid=922, Unknown=0, NotChecked=0, Total=1260 [2021-03-10 17:49:41,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4827 states. [2021-03-10 17:49:41,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4827 to 3776. [2021-03-10 17:49:41,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3776 states, 3774 states have (on average 2.6033386327503973) internal successors, (9825), 3775 states have internal predecessors, (9825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:41,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3776 states to 3776 states and 9825 transitions. [2021-03-10 17:49:41,121 INFO L78 Accepts]: Start accepts. Automaton has 3776 states and 9825 transitions. Word has length 108 [2021-03-10 17:49:41,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:49:41,121 INFO L480 AbstractCegarLoop]: Abstraction has 3776 states and 9825 transitions. [2021-03-10 17:49:41,121 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:41,121 INFO L276 IsEmpty]: Start isEmpty. Operand 3776 states and 9825 transitions. [2021-03-10 17:49:41,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:49:41,128 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:49:41,128 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:49:41,129 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-10 17:49:41,129 INFO L428 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]=== [2021-03-10 17:49:41,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:49:41,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1470063417, now seen corresponding path program 2 times [2021-03-10 17:49:41,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:49:41,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821901395] [2021-03-10 17:49:41,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:49:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:49:41,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:49:41,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821901395] [2021-03-10 17:49:41,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:49:41,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:49:41,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621838921] [2021-03-10 17:49:41,747 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:49:41,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:49:41,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:49:41,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:49:41,748 INFO L87 Difference]: Start difference. First operand 3776 states and 9825 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:42,510 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-03-10 17:49:42,704 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2021-03-10 17:49:42,907 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2021-03-10 17:49:43,183 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-03-10 17:49:43,423 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 66 [2021-03-10 17:49:43,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:49:43,598 INFO L93 Difference]: Finished difference Result 14771 states and 38004 transitions. [2021-03-10 17:49:43,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:49:43,599 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:49:43,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:49:43,624 INFO L225 Difference]: With dead ends: 14771 [2021-03-10 17:49:43,624 INFO L226 Difference]: Without dead ends: 14771 [2021-03-10 17:49:43,625 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1688.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:49:43,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14771 states. [2021-03-10 17:49:43,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14771 to 4267. [2021-03-10 17:49:43,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4267 states, 4265 states have (on average 2.604689331770223) internal successors, (11109), 4266 states have internal predecessors, (11109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:43,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4267 states to 4267 states and 11109 transitions. [2021-03-10 17:49:43,764 INFO L78 Accepts]: Start accepts. Automaton has 4267 states and 11109 transitions. Word has length 108 [2021-03-10 17:49:43,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:49:43,764 INFO L480 AbstractCegarLoop]: Abstraction has 4267 states and 11109 transitions. [2021-03-10 17:49:43,764 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:43,764 INFO L276 IsEmpty]: Start isEmpty. Operand 4267 states and 11109 transitions. [2021-03-10 17:49:43,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:49:43,772 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:49:43,772 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:49:43,772 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-10 17:49:43,773 INFO L428 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]=== [2021-03-10 17:49:43,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:49:43,773 INFO L82 PathProgramCache]: Analyzing trace with hash -629926479, now seen corresponding path program 3 times [2021-03-10 17:49:43,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:49:43,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289194255] [2021-03-10 17:49:43,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:49:43,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:49:44,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:49:44,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289194255] [2021-03-10 17:49:44,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:49:44,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-10 17:49:44,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837388794] [2021-03-10 17:49:44,300 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 17:49:44,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:49:44,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 17:49:44,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:49:44,302 INFO L87 Difference]: Start difference. First operand 4267 states and 11109 transitions. Second operand has 19 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:45,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:49:45,552 INFO L93 Difference]: Finished difference Result 6019 states and 14940 transitions. [2021-03-10 17:49:45,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-03-10 17:49:45,552 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:49:45,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:49:45,562 INFO L225 Difference]: With dead ends: 6019 [2021-03-10 17:49:45,562 INFO L226 Difference]: Without dead ends: 6019 [2021-03-10 17:49:45,563 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 1108.0ms TimeCoverageRelationStatistics Valid=360, Invalid=900, Unknown=0, NotChecked=0, Total=1260 [2021-03-10 17:49:45,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6019 states. [2021-03-10 17:49:45,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6019 to 4858. [2021-03-10 17:49:45,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4858 states, 4856 states have (on average 2.5965815485996706) internal successors, (12609), 4857 states have internal predecessors, (12609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:45,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4858 states to 4858 states and 12609 transitions. [2021-03-10 17:49:45,691 INFO L78 Accepts]: Start accepts. Automaton has 4858 states and 12609 transitions. Word has length 108 [2021-03-10 17:49:45,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:49:45,692 INFO L480 AbstractCegarLoop]: Abstraction has 4858 states and 12609 transitions. [2021-03-10 17:49:45,692 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:45,692 INFO L276 IsEmpty]: Start isEmpty. Operand 4858 states and 12609 transitions. [2021-03-10 17:49:45,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:49:45,700 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:49:45,701 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:49:45,701 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-10 17:49:45,701 INFO L428 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]=== [2021-03-10 17:49:45,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:49:45,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1720024933, now seen corresponding path program 4 times [2021-03-10 17:49:45,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:49:45,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455487973] [2021-03-10 17:49:45,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:49:45,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:49:46,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:49:46,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455487973] [2021-03-10 17:49:46,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:49:46,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:49:46,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975241458] [2021-03-10 17:49:46,164 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:49:46,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:49:46,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:49:46,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:49:46,165 INFO L87 Difference]: Start difference. First operand 4858 states and 12609 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:46,741 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:49:46,895 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:49:47,068 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:49:47,255 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:49:47,466 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:49:47,652 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:49:47,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:49:47,826 INFO L93 Difference]: Finished difference Result 20641 states and 52587 transitions. [2021-03-10 17:49:47,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:49:47,827 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:49:47,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:49:47,859 INFO L225 Difference]: With dead ends: 20641 [2021-03-10 17:49:47,859 INFO L226 Difference]: Without dead ends: 20641 [2021-03-10 17:49:47,860 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1554.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:49:47,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20641 states. [2021-03-10 17:49:48,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20641 to 4994. [2021-03-10 17:49:48,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4994 states, 4992 states have (on average 2.582331730769231) internal successors, (12891), 4993 states have internal predecessors, (12891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:48,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4994 states to 4994 states and 12891 transitions. [2021-03-10 17:49:48,095 INFO L78 Accepts]: Start accepts. Automaton has 4994 states and 12891 transitions. Word has length 108 [2021-03-10 17:49:48,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:49:48,095 INFO L480 AbstractCegarLoop]: Abstraction has 4994 states and 12891 transitions. [2021-03-10 17:49:48,095 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:48,095 INFO L276 IsEmpty]: Start isEmpty. Operand 4994 states and 12891 transitions. [2021-03-10 17:49:48,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:49:48,108 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:49:48,109 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:49:48,109 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-10 17:49:48,109 INFO L428 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]=== [2021-03-10 17:49:48,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:49:48,110 INFO L82 PathProgramCache]: Analyzing trace with hash 190867115, now seen corresponding path program 5 times [2021-03-10 17:49:48,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:49:48,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276877740] [2021-03-10 17:49:48,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:49:48,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:49:48,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:49:48,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276877740] [2021-03-10 17:49:48,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:49:48,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:49:48,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756714094] [2021-03-10 17:49:48,639 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:49:48,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:49:48,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:49:48,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:49:48,640 INFO L87 Difference]: Start difference. First operand 4994 states and 12891 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:49,522 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2021-03-10 17:49:49,721 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2021-03-10 17:49:49,934 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-03-10 17:49:50,146 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 66 [2021-03-10 17:49:50,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:49:50,303 INFO L93 Difference]: Finished difference Result 18999 states and 48237 transitions. [2021-03-10 17:49:50,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:49:50,303 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:49:50,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:49:50,330 INFO L225 Difference]: With dead ends: 18999 [2021-03-10 17:49:50,330 INFO L226 Difference]: Without dead ends: 18999 [2021-03-10 17:49:50,331 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1591.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:49:50,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18999 states. [2021-03-10 17:49:50,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18999 to 4994. [2021-03-10 17:49:50,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4994 states, 4992 states have (on average 2.582331730769231) internal successors, (12891), 4993 states have internal predecessors, (12891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:50,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4994 states to 4994 states and 12891 transitions. [2021-03-10 17:49:50,516 INFO L78 Accepts]: Start accepts. Automaton has 4994 states and 12891 transitions. Word has length 108 [2021-03-10 17:49:50,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:49:50,517 INFO L480 AbstractCegarLoop]: Abstraction has 4994 states and 12891 transitions. [2021-03-10 17:49:50,517 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:50,517 INFO L276 IsEmpty]: Start isEmpty. Operand 4994 states and 12891 transitions. [2021-03-10 17:49:50,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:49:50,526 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:49:50,526 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:49:50,526 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-10 17:49:50,527 INFO L428 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]=== [2021-03-10 17:49:50,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:49:50,528 INFO L82 PathProgramCache]: Analyzing trace with hash -1453017237, now seen corresponding path program 6 times [2021-03-10 17:49:50,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:49:50,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420827223] [2021-03-10 17:49:50,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:49:50,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:49:51,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:49:51,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420827223] [2021-03-10 17:49:51,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:49:51,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-10 17:49:51,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496401218] [2021-03-10 17:49:51,033 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 17:49:51,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:49:51,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 17:49:51,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:49:51,033 INFO L87 Difference]: Start difference. First operand 4994 states and 12891 transitions. Second operand has 19 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:52,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:49:52,098 INFO L93 Difference]: Finished difference Result 6072 states and 15351 transitions. [2021-03-10 17:49:52,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-10 17:49:52,098 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:49:52,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:49:52,103 INFO L225 Difference]: With dead ends: 6072 [2021-03-10 17:49:52,104 INFO L226 Difference]: Without dead ends: 6072 [2021-03-10 17:49:52,105 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 1063.9ms TimeCoverageRelationStatistics Valid=329, Invalid=793, Unknown=0, NotChecked=0, Total=1122 [2021-03-10 17:49:52,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6072 states. [2021-03-10 17:49:52,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6072 to 5104. [2021-03-10 17:49:52,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5104 states, 5102 states have (on average 2.5870246961975694) internal successors, (13199), 5103 states have internal predecessors, (13199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:52,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5104 states to 5104 states and 13199 transitions. [2021-03-10 17:49:52,187 INFO L78 Accepts]: Start accepts. Automaton has 5104 states and 13199 transitions. Word has length 108 [2021-03-10 17:49:52,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:49:52,187 INFO L480 AbstractCegarLoop]: Abstraction has 5104 states and 13199 transitions. [2021-03-10 17:49:52,187 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:52,187 INFO L276 IsEmpty]: Start isEmpty. Operand 5104 states and 13199 transitions. [2021-03-10 17:49:52,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:49:52,194 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:49:52,194 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:49:52,195 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-10 17:49:52,195 INFO L428 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]=== [2021-03-10 17:49:52,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:49:52,195 INFO L82 PathProgramCache]: Analyzing trace with hash 1161375249, now seen corresponding path program 7 times [2021-03-10 17:49:52,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:49:52,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177140502] [2021-03-10 17:49:52,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:49:52,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:49:52,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:49:52,636 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177140502] [2021-03-10 17:49:52,636 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:49:52,636 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-10 17:49:52,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876352924] [2021-03-10 17:49:52,637 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 17:49:52,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:49:52,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 17:49:52,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:49:52,638 INFO L87 Difference]: Start difference. First operand 5104 states and 13199 transitions. Second operand has 19 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:53,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:49:53,749 INFO L93 Difference]: Finished difference Result 6838 states and 16856 transitions. [2021-03-10 17:49:53,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-03-10 17:49:53,749 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:49:53,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:49:53,756 INFO L225 Difference]: With dead ends: 6838 [2021-03-10 17:49:53,757 INFO L226 Difference]: Without dead ends: 6838 [2021-03-10 17:49:53,757 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1039.8ms TimeCoverageRelationStatistics Valid=360, Invalid=900, Unknown=0, NotChecked=0, Total=1260 [2021-03-10 17:49:53,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6838 states. [2021-03-10 17:49:53,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6838 to 5104. [2021-03-10 17:49:53,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5104 states, 5102 states have (on average 2.5870246961975694) internal successors, (13199), 5103 states have internal predecessors, (13199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:53,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5104 states to 5104 states and 13199 transitions. [2021-03-10 17:49:53,889 INFO L78 Accepts]: Start accepts. Automaton has 5104 states and 13199 transitions. Word has length 108 [2021-03-10 17:49:53,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:49:53,890 INFO L480 AbstractCegarLoop]: Abstraction has 5104 states and 13199 transitions. [2021-03-10 17:49:53,890 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:53,890 INFO L276 IsEmpty]: Start isEmpty. Operand 5104 states and 13199 transitions. [2021-03-10 17:49:53,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:49:53,897 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:49:53,897 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:49:53,897 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-10 17:49:53,897 INFO L428 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]=== [2021-03-10 17:49:53,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:49:53,898 INFO L82 PathProgramCache]: Analyzing trace with hash -1085739251, now seen corresponding path program 8 times [2021-03-10 17:49:53,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:49:53,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325315281] [2021-03-10 17:49:53,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:49:53,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:49:54,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:49:54,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325315281] [2021-03-10 17:49:54,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:49:54,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-10 17:49:54,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589684403] [2021-03-10 17:49:54,297 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 17:49:54,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:49:54,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 17:49:54,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:49:54,297 INFO L87 Difference]: Start difference. First operand 5104 states and 13199 transitions. Second operand has 19 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:54,874 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-03-10 17:49:55,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:49:55,498 INFO L93 Difference]: Finished difference Result 7121 states and 17363 transitions. [2021-03-10 17:49:55,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-03-10 17:49:55,498 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:49:55,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:49:55,506 INFO L225 Difference]: With dead ends: 7121 [2021-03-10 17:49:55,506 INFO L226 Difference]: Without dead ends: 7121 [2021-03-10 17:49:55,507 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1010.4ms TimeCoverageRelationStatistics Valid=349, Invalid=911, Unknown=0, NotChecked=0, Total=1260 [2021-03-10 17:49:55,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7121 states. [2021-03-10 17:49:55,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7121 to 5100. [2021-03-10 17:49:55,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5100 states, 5098 states have (on average 2.5870929776382896) internal successors, (13189), 5099 states have internal predecessors, (13189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:55,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5100 states to 5100 states and 13189 transitions. [2021-03-10 17:49:55,591 INFO L78 Accepts]: Start accepts. Automaton has 5100 states and 13189 transitions. Word has length 108 [2021-03-10 17:49:55,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:49:55,591 INFO L480 AbstractCegarLoop]: Abstraction has 5100 states and 13189 transitions. [2021-03-10 17:49:55,591 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:55,592 INFO L276 IsEmpty]: Start isEmpty. Operand 5100 states and 13189 transitions. [2021-03-10 17:49:55,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:49:55,599 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:49:55,599 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:49:55,599 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-10 17:49:55,599 INFO L428 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]=== [2021-03-10 17:49:55,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:49:55,600 INFO L82 PathProgramCache]: Analyzing trace with hash -2126625105, now seen corresponding path program 9 times [2021-03-10 17:49:55,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:49:55,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567162800] [2021-03-10 17:49:55,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:49:55,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:49:56,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:49:56,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567162800] [2021-03-10 17:49:56,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:49:56,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-10 17:49:56,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651124872] [2021-03-10 17:49:56,014 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 17:49:56,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:49:56,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 17:49:56,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:49:56,015 INFO L87 Difference]: Start difference. First operand 5100 states and 13189 transitions. Second operand has 19 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:56,709 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-03-10 17:49:57,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:49:57,166 INFO L93 Difference]: Finished difference Result 7189 states and 17510 transitions. [2021-03-10 17:49:57,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-03-10 17:49:57,166 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:49:57,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:49:57,172 INFO L225 Difference]: With dead ends: 7189 [2021-03-10 17:49:57,172 INFO L226 Difference]: Without dead ends: 7189 [2021-03-10 17:49:57,173 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1040.4ms TimeCoverageRelationStatistics Valid=349, Invalid=911, Unknown=0, NotChecked=0, Total=1260 [2021-03-10 17:49:57,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7189 states. [2021-03-10 17:49:57,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7189 to 5160. [2021-03-10 17:49:57,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5160 states, 5158 states have (on average 2.584528887165568) internal successors, (13331), 5159 states have internal predecessors, (13331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:57,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5160 states to 5160 states and 13331 transitions. [2021-03-10 17:49:57,244 INFO L78 Accepts]: Start accepts. Automaton has 5160 states and 13331 transitions. Word has length 108 [2021-03-10 17:49:57,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:49:57,245 INFO L480 AbstractCegarLoop]: Abstraction has 5160 states and 13331 transitions. [2021-03-10 17:49:57,245 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:57,245 INFO L276 IsEmpty]: Start isEmpty. Operand 5160 states and 13331 transitions. [2021-03-10 17:49:57,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:49:57,252 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:49:57,253 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:49:57,253 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-10 17:49:57,253 INFO L428 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]=== [2021-03-10 17:49:57,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:49:57,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1427262857, now seen corresponding path program 10 times [2021-03-10 17:49:57,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:49:57,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781837174] [2021-03-10 17:49:57,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:49:57,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:49:57,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:49:57,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781837174] [2021-03-10 17:49:57,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:49:57,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:49:57,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057794182] [2021-03-10 17:49:57,664 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:49:57,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:49:57,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:49:57,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:49:57,665 INFO L87 Difference]: Start difference. First operand 5160 states and 13331 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:58,484 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:49:58,634 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:49:58,799 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:49:58,986 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:49:59,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:49:59,111 INFO L93 Difference]: Finished difference Result 15843 states and 40669 transitions. [2021-03-10 17:49:59,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:49:59,111 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:49:59,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:49:59,125 INFO L225 Difference]: With dead ends: 15843 [2021-03-10 17:49:59,125 INFO L226 Difference]: Without dead ends: 15843 [2021-03-10 17:49:59,125 INFO L775 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 [2021-03-10 17:49:59,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15843 states. [2021-03-10 17:49:59,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15843 to 5292. [2021-03-10 17:49:59,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5292 states, 5290 states have (on average 2.5899810964083176) internal successors, (13701), 5291 states have internal predecessors, (13701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:59,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5292 states to 5292 states and 13701 transitions. [2021-03-10 17:49:59,225 INFO L78 Accepts]: Start accepts. Automaton has 5292 states and 13701 transitions. Word has length 108 [2021-03-10 17:49:59,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:49:59,225 INFO L480 AbstractCegarLoop]: Abstraction has 5292 states and 13701 transitions. [2021-03-10 17:49:59,225 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:49:59,225 INFO L276 IsEmpty]: Start isEmpty. Operand 5292 states and 13701 transitions. [2021-03-10 17:49:59,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:49:59,232 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:49:59,232 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:49:59,233 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-10 17:49:59,233 INFO L428 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]=== [2021-03-10 17:49:59,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:49:59,233 INFO L82 PathProgramCache]: Analyzing trace with hash -929731643, now seen corresponding path program 11 times [2021-03-10 17:49:59,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:49:59,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538432080] [2021-03-10 17:49:59,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:49:59,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:49:59,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:49:59,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538432080] [2021-03-10 17:49:59,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:49:59,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:49:59,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182939396] [2021-03-10 17:49:59,700 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:49:59,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:49:59,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:49:59,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:49:59,701 INFO L87 Difference]: Start difference. First operand 5292 states and 13701 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:00,481 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:50:00,640 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:50:00,819 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:50:00,998 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:50:01,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:01,125 INFO L93 Difference]: Finished difference Result 16787 states and 42691 transitions. [2021-03-10 17:50:01,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:50:01,125 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:50:01,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:01,141 INFO L225 Difference]: With dead ends: 16787 [2021-03-10 17:50:01,141 INFO L226 Difference]: Without dead ends: 16787 [2021-03-10 17:50:01,141 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1373.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:50:01,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16787 states. [2021-03-10 17:50:01,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16787 to 5292. [2021-03-10 17:50:01,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5292 states, 5290 states have (on average 2.5899810964083176) internal successors, (13701), 5291 states have internal predecessors, (13701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:01,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5292 states to 5292 states and 13701 transitions. [2021-03-10 17:50:01,255 INFO L78 Accepts]: Start accepts. Automaton has 5292 states and 13701 transitions. Word has length 108 [2021-03-10 17:50:01,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:01,255 INFO L480 AbstractCegarLoop]: Abstraction has 5292 states and 13701 transitions. [2021-03-10 17:50:01,255 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:01,255 INFO L276 IsEmpty]: Start isEmpty. Operand 5292 states and 13701 transitions. [2021-03-10 17:50:01,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:50:01,262 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:01,263 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:01,263 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-10 17:50:01,263 INFO L428 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]=== [2021-03-10 17:50:01,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:01,263 INFO L82 PathProgramCache]: Analyzing trace with hash -2142378079, now seen corresponding path program 12 times [2021-03-10 17:50:01,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:01,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570723637] [2021-03-10 17:50:01,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:01,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:01,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570723637] [2021-03-10 17:50:01,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:01,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:50:01,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985859672] [2021-03-10 17:50:01,683 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:50:01,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:01,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:50:01,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:50:01,684 INFO L87 Difference]: Start difference. First operand 5292 states and 13701 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:02,397 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:50:02,569 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:50:02,739 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:50:02,933 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:50:03,160 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:50:03,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:03,322 INFO L93 Difference]: Finished difference Result 20108 states and 50904 transitions. [2021-03-10 17:50:03,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:50:03,322 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:50:03,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:03,341 INFO L225 Difference]: With dead ends: 20108 [2021-03-10 17:50:03,342 INFO L226 Difference]: Without dead ends: 20108 [2021-03-10 17:50:03,342 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1509.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:50:03,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20108 states. [2021-03-10 17:50:03,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20108 to 5309. [2021-03-10 17:50:03,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5309 states, 5307 states have (on average 2.5907292255511587) internal successors, (13749), 5308 states have internal predecessors, (13749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:03,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5309 states to 5309 states and 13749 transitions. [2021-03-10 17:50:03,494 INFO L78 Accepts]: Start accepts. Automaton has 5309 states and 13749 transitions. Word has length 108 [2021-03-10 17:50:03,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:03,495 INFO L480 AbstractCegarLoop]: Abstraction has 5309 states and 13749 transitions. [2021-03-10 17:50:03,495 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:03,495 INFO L276 IsEmpty]: Start isEmpty. Operand 5309 states and 13749 transitions. [2021-03-10 17:50:03,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:50:03,499 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:03,499 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:03,499 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-10 17:50:03,499 INFO L428 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]=== [2021-03-10 17:50:03,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:03,499 INFO L82 PathProgramCache]: Analyzing trace with hash 623431399, now seen corresponding path program 13 times [2021-03-10 17:50:03,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:03,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106078309] [2021-03-10 17:50:03,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:03,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:03,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:03,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106078309] [2021-03-10 17:50:03,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:03,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:50:03,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055740464] [2021-03-10 17:50:03,921 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:50:03,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:03,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:50:03,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:50:03,922 INFO L87 Difference]: Start difference. First operand 5309 states and 13749 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:04,587 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 41 [2021-03-10 17:50:04,754 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-03-10 17:50:04,926 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2021-03-10 17:50:05,093 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 55 [2021-03-10 17:50:05,299 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 60 [2021-03-10 17:50:05,496 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 66 [2021-03-10 17:50:05,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:05,616 INFO L93 Difference]: Finished difference Result 16963 states and 43161 transitions. [2021-03-10 17:50:05,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:50:05,616 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:50:05,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:05,631 INFO L225 Difference]: With dead ends: 16963 [2021-03-10 17:50:05,631 INFO L226 Difference]: Without dead ends: 16963 [2021-03-10 17:50:05,631 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1603.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:50:05,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16963 states. [2021-03-10 17:50:05,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16963 to 5292. [2021-03-10 17:50:05,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5292 states, 5290 states have (on average 2.5899810964083176) internal successors, (13701), 5291 states have internal predecessors, (13701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:05,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5292 states to 5292 states and 13701 transitions. [2021-03-10 17:50:05,756 INFO L78 Accepts]: Start accepts. Automaton has 5292 states and 13701 transitions. Word has length 108 [2021-03-10 17:50:05,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:05,756 INFO L480 AbstractCegarLoop]: Abstraction has 5292 states and 13701 transitions. [2021-03-10 17:50:05,756 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:05,756 INFO L276 IsEmpty]: Start isEmpty. Operand 5292 states and 13701 transitions. [2021-03-10 17:50:05,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:50:05,761 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:05,761 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:05,761 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-10 17:50:05,761 INFO L428 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]=== [2021-03-10 17:50:05,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:05,762 INFO L82 PathProgramCache]: Analyzing trace with hash 408522377, now seen corresponding path program 14 times [2021-03-10 17:50:05,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:05,762 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294963612] [2021-03-10 17:50:05,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:05,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:06,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:06,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294963612] [2021-03-10 17:50:06,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:06,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:50:06,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107099806] [2021-03-10 17:50:06,228 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:50:06,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:06,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:50:06,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:50:06,229 INFO L87 Difference]: Start difference. First operand 5292 states and 13701 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:06,897 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2021-03-10 17:50:07,050 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2021-03-10 17:50:07,216 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2021-03-10 17:50:07,422 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2021-03-10 17:50:07,633 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2021-03-10 17:50:07,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:07,776 INFO L93 Difference]: Finished difference Result 17020 states and 44009 transitions. [2021-03-10 17:50:07,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:50:07,777 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:50:07,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:07,793 INFO L225 Difference]: With dead ends: 17020 [2021-03-10 17:50:07,793 INFO L226 Difference]: Without dead ends: 17020 [2021-03-10 17:50:07,793 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1484.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:50:07,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17020 states. [2021-03-10 17:50:07,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17020 to 5341. [2021-03-10 17:50:07,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5341 states, 5339 states have (on average 2.5922457389024163) internal successors, (13840), 5340 states have internal predecessors, (13840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:07,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5341 states to 5341 states and 13840 transitions. [2021-03-10 17:50:07,912 INFO L78 Accepts]: Start accepts. Automaton has 5341 states and 13840 transitions. Word has length 108 [2021-03-10 17:50:07,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:07,913 INFO L480 AbstractCegarLoop]: Abstraction has 5341 states and 13840 transitions. [2021-03-10 17:50:07,913 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:07,913 INFO L276 IsEmpty]: Start isEmpty. Operand 5341 states and 13840 transitions. [2021-03-10 17:50:07,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:50:07,919 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:07,919 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:07,919 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-10 17:50:07,919 INFO L428 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]=== [2021-03-10 17:50:07,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:07,919 INFO L82 PathProgramCache]: Analyzing trace with hash -696356569, now seen corresponding path program 15 times [2021-03-10 17:50:07,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:07,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880375740] [2021-03-10 17:50:07,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:07,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:08,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:08,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880375740] [2021-03-10 17:50:08,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:08,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:50:08,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269164749] [2021-03-10 17:50:08,328 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:50:08,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:08,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:50:08,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:50:08,329 INFO L87 Difference]: Start difference. First operand 5341 states and 13840 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:08,856 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:50:09,109 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:50:09,287 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:50:09,464 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:50:09,653 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:50:09,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:09,792 INFO L93 Difference]: Finished difference Result 16536 states and 42285 transitions. [2021-03-10 17:50:09,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:50:09,792 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:50:09,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:09,806 INFO L225 Difference]: With dead ends: 16536 [2021-03-10 17:50:09,806 INFO L226 Difference]: Without dead ends: 16536 [2021-03-10 17:50:09,807 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1364.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:50:09,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16536 states. [2021-03-10 17:50:09,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16536 to 5358. [2021-03-10 17:50:09,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5358 states, 5356 states have (on average 2.5929798356982823) internal successors, (13888), 5357 states have internal predecessors, (13888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:09,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5358 states to 5358 states and 13888 transitions. [2021-03-10 17:50:09,921 INFO L78 Accepts]: Start accepts. Automaton has 5358 states and 13888 transitions. Word has length 108 [2021-03-10 17:50:09,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:09,921 INFO L480 AbstractCegarLoop]: Abstraction has 5358 states and 13888 transitions. [2021-03-10 17:50:09,921 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:09,921 INFO L276 IsEmpty]: Start isEmpty. Operand 5358 states and 13888 transitions. [2021-03-10 17:50:09,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:50:09,925 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:09,926 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:09,926 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-10 17:50:09,926 INFO L428 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]=== [2021-03-10 17:50:09,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:09,926 INFO L82 PathProgramCache]: Analyzing trace with hash 2069452909, now seen corresponding path program 16 times [2021-03-10 17:50:09,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:09,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937611907] [2021-03-10 17:50:09,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:09,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:10,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:10,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937611907] [2021-03-10 17:50:10,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:10,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:50:10,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700702419] [2021-03-10 17:50:10,414 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:50:10,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:10,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:50:10,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:50:10,414 INFO L87 Difference]: Start difference. First operand 5358 states and 13888 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:11,067 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2021-03-10 17:50:11,220 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2021-03-10 17:50:11,422 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2021-03-10 17:50:11,613 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2021-03-10 17:50:11,824 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2021-03-10 17:50:11,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:11,956 INFO L93 Difference]: Finished difference Result 16366 states and 41875 transitions. [2021-03-10 17:50:11,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:50:11,956 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:50:11,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:11,970 INFO L225 Difference]: With dead ends: 16366 [2021-03-10 17:50:11,971 INFO L226 Difference]: Without dead ends: 16366 [2021-03-10 17:50:11,971 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1516.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:50:11,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16366 states. [2021-03-10 17:50:12,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16366 to 5307. [2021-03-10 17:50:12,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5307 states, 5305 states have (on average 2.5907634307257306) internal successors, (13744), 5306 states have internal predecessors, (13744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:12,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5307 states to 5307 states and 13744 transitions. [2021-03-10 17:50:12,103 INFO L78 Accepts]: Start accepts. Automaton has 5307 states and 13744 transitions. Word has length 108 [2021-03-10 17:50:12,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:12,103 INFO L480 AbstractCegarLoop]: Abstraction has 5307 states and 13744 transitions. [2021-03-10 17:50:12,104 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:12,104 INFO L276 IsEmpty]: Start isEmpty. Operand 5307 states and 13744 transitions. [2021-03-10 17:50:12,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:50:12,110 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:12,110 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:12,110 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-10 17:50:12,110 INFO L428 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]=== [2021-03-10 17:50:12,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:12,111 INFO L82 PathProgramCache]: Analyzing trace with hash 1016479499, now seen corresponding path program 17 times [2021-03-10 17:50:12,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:12,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274627456] [2021-03-10 17:50:12,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:12,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:12,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:12,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274627456] [2021-03-10 17:50:12,468 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:12,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-10 17:50:12,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009295836] [2021-03-10 17:50:12,469 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 17:50:12,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:12,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 17:50:12,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:50:12,470 INFO L87 Difference]: Start difference. First operand 5307 states and 13744 transitions. Second operand has 19 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:13,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:13,470 INFO L93 Difference]: Finished difference Result 7420 states and 18158 transitions. [2021-03-10 17:50:13,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-03-10 17:50:13,471 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:50:13,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:13,478 INFO L225 Difference]: With dead ends: 7420 [2021-03-10 17:50:13,478 INFO L226 Difference]: Without dead ends: 7420 [2021-03-10 17:50:13,479 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 917.5ms TimeCoverageRelationStatistics Valid=327, Invalid=933, Unknown=0, NotChecked=0, Total=1260 [2021-03-10 17:50:13,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7420 states. [2021-03-10 17:50:13,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7420 to 5365. [2021-03-10 17:50:13,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5365 states, 5363 states have (on average 2.5881036733171734) internal successors, (13880), 5364 states have internal predecessors, (13880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:13,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5365 states to 5365 states and 13880 transitions. [2021-03-10 17:50:13,552 INFO L78 Accepts]: Start accepts. Automaton has 5365 states and 13880 transitions. Word has length 108 [2021-03-10 17:50:13,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:13,552 INFO L480 AbstractCegarLoop]: Abstraction has 5365 states and 13880 transitions. [2021-03-10 17:50:13,552 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:13,552 INFO L276 IsEmpty]: Start isEmpty. Operand 5365 states and 13880 transitions. [2021-03-10 17:50:13,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:50:13,556 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:13,556 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:13,556 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-10 17:50:13,556 INFO L428 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]=== [2021-03-10 17:50:13,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:13,557 INFO L82 PathProgramCache]: Analyzing trace with hash 44010791, now seen corresponding path program 18 times [2021-03-10 17:50:13,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:13,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876760342] [2021-03-10 17:50:13,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:13,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:13,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:13,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876760342] [2021-03-10 17:50:13,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:13,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:50:13,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341264032] [2021-03-10 17:50:13,996 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:50:13,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:13,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:50:13,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:50:13,997 INFO L87 Difference]: Start difference. First operand 5365 states and 13880 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:14,647 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2021-03-10 17:50:14,793 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2021-03-10 17:50:14,955 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2021-03-10 17:50:15,166 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2021-03-10 17:50:15,397 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2021-03-10 17:50:15,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:15,519 INFO L93 Difference]: Finished difference Result 13197 states and 33982 transitions. [2021-03-10 17:50:15,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:50:15,519 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:50:15,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:15,530 INFO L225 Difference]: With dead ends: 13197 [2021-03-10 17:50:15,531 INFO L226 Difference]: Without dead ends: 13197 [2021-03-10 17:50:15,531 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1494.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:50:15,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13197 states. [2021-03-10 17:50:15,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13197 to 5463. [2021-03-10 17:50:15,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5463 states, 5461 states have (on average 2.5918329976194836) internal successors, (14154), 5462 states have internal predecessors, (14154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:15,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5463 states to 5463 states and 14154 transitions. [2021-03-10 17:50:15,616 INFO L78 Accepts]: Start accepts. Automaton has 5463 states and 14154 transitions. Word has length 108 [2021-03-10 17:50:15,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:15,617 INFO L480 AbstractCegarLoop]: Abstraction has 5463 states and 14154 transitions. [2021-03-10 17:50:15,617 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:15,617 INFO L276 IsEmpty]: Start isEmpty. Operand 5463 states and 14154 transitions. [2021-03-10 17:50:15,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:50:15,622 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:15,622 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:15,622 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-10 17:50:15,622 INFO L428 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]=== [2021-03-10 17:50:15,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:15,622 INFO L82 PathProgramCache]: Analyzing trace with hash 59298535, now seen corresponding path program 19 times [2021-03-10 17:50:15,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:15,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889944487] [2021-03-10 17:50:15,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:15,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:16,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:16,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889944487] [2021-03-10 17:50:16,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:16,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:50:16,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614323960] [2021-03-10 17:50:16,008 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:50:16,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:16,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:50:16,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:50:16,009 INFO L87 Difference]: Start difference. First operand 5463 states and 14154 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:16,696 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2021-03-10 17:50:16,853 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2021-03-10 17:50:17,015 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2021-03-10 17:50:17,218 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2021-03-10 17:50:17,427 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2021-03-10 17:50:17,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:17,556 INFO L93 Difference]: Finished difference Result 12928 states and 33260 transitions. [2021-03-10 17:50:17,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:50:17,556 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:50:17,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:17,567 INFO L225 Difference]: With dead ends: 12928 [2021-03-10 17:50:17,567 INFO L226 Difference]: Without dead ends: 12928 [2021-03-10 17:50:17,568 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1442.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:50:17,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12928 states. [2021-03-10 17:50:17,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12928 to 5591. [2021-03-10 17:50:17,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5591 states, 5589 states have (on average 2.5976024333512258) internal successors, (14518), 5590 states have internal predecessors, (14518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:17,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5591 states to 5591 states and 14518 transitions. [2021-03-10 17:50:17,654 INFO L78 Accepts]: Start accepts. Automaton has 5591 states and 14518 transitions. Word has length 108 [2021-03-10 17:50:17,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:17,654 INFO L480 AbstractCegarLoop]: Abstraction has 5591 states and 14518 transitions. [2021-03-10 17:50:17,654 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:17,654 INFO L276 IsEmpty]: Start isEmpty. Operand 5591 states and 14518 transitions. [2021-03-10 17:50:17,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:50:17,658 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:17,658 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:17,658 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-10 17:50:17,658 INFO L428 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]=== [2021-03-10 17:50:17,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:17,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1045580411, now seen corresponding path program 20 times [2021-03-10 17:50:17,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:17,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243020806] [2021-03-10 17:50:17,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:17,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:18,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:18,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243020806] [2021-03-10 17:50:18,060 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:18,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:50:18,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917716663] [2021-03-10 17:50:18,061 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:50:18,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:18,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:50:18,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:50:18,062 INFO L87 Difference]: Start difference. First operand 5591 states and 14518 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:18,815 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:50:18,987 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:50:19,161 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:50:19,349 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:50:19,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:19,503 INFO L93 Difference]: Finished difference Result 15973 states and 40749 transitions. [2021-03-10 17:50:19,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:50:19,503 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:50:19,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:19,518 INFO L225 Difference]: With dead ends: 15973 [2021-03-10 17:50:19,518 INFO L226 Difference]: Without dead ends: 15973 [2021-03-10 17:50:19,518 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1324.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:50:19,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15973 states. [2021-03-10 17:50:19,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15973 to 5608. [2021-03-10 17:50:19,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5608 states, 5606 states have (on average 2.5982875490545845) internal successors, (14566), 5607 states have internal predecessors, (14566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:19,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5608 states to 5608 states and 14566 transitions. [2021-03-10 17:50:19,625 INFO L78 Accepts]: Start accepts. Automaton has 5608 states and 14566 transitions. Word has length 108 [2021-03-10 17:50:19,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:19,625 INFO L480 AbstractCegarLoop]: Abstraction has 5608 states and 14566 transitions. [2021-03-10 17:50:19,626 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:19,626 INFO L276 IsEmpty]: Start isEmpty. Operand 5608 states and 14566 transitions. [2021-03-10 17:50:19,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:50:19,632 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:19,632 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:19,632 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-03-10 17:50:19,633 INFO L428 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]=== [2021-03-10 17:50:19,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:19,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1720229067, now seen corresponding path program 21 times [2021-03-10 17:50:19,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:19,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342669699] [2021-03-10 17:50:19,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:19,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:20,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:20,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342669699] [2021-03-10 17:50:20,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:20,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:50:20,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95549288] [2021-03-10 17:50:20,048 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:50:20,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:20,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:50:20,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:50:20,049 INFO L87 Difference]: Start difference. First operand 5608 states and 14566 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:20,711 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2021-03-10 17:50:20,865 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2021-03-10 17:50:21,053 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2021-03-10 17:50:21,237 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2021-03-10 17:50:21,469 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2021-03-10 17:50:21,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:21,586 INFO L93 Difference]: Finished difference Result 14138 states and 35896 transitions. [2021-03-10 17:50:21,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:50:21,587 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:50:21,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:21,600 INFO L225 Difference]: With dead ends: 14138 [2021-03-10 17:50:21,600 INFO L226 Difference]: Without dead ends: 14138 [2021-03-10 17:50:21,601 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1496.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:50:21,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14138 states. [2021-03-10 17:50:21,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14138 to 5557. [2021-03-10 17:50:21,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5557 states, 5555 states have (on average 2.596219621962196) internal successors, (14422), 5556 states have internal predecessors, (14422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:21,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5557 states to 5557 states and 14422 transitions. [2021-03-10 17:50:21,719 INFO L78 Accepts]: Start accepts. Automaton has 5557 states and 14422 transitions. Word has length 108 [2021-03-10 17:50:21,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:21,719 INFO L480 AbstractCegarLoop]: Abstraction has 5557 states and 14422 transitions. [2021-03-10 17:50:21,719 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:21,719 INFO L276 IsEmpty]: Start isEmpty. Operand 5557 states and 14422 transitions. [2021-03-10 17:50:21,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:50:21,724 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:21,725 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:21,725 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-03-10 17:50:21,725 INFO L428 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]=== [2021-03-10 17:50:21,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:21,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1338342487, now seen corresponding path program 22 times [2021-03-10 17:50:21,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:21,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364839197] [2021-03-10 17:50:21,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:21,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:22,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:22,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364839197] [2021-03-10 17:50:22,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:22,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:50:22,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792134519] [2021-03-10 17:50:22,149 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:50:22,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:22,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:50:22,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:50:22,150 INFO L87 Difference]: Start difference. First operand 5557 states and 14422 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:22,892 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:50:23,042 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:50:23,271 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:50:23,474 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:50:23,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:23,596 INFO L93 Difference]: Finished difference Result 15936 states and 40773 transitions. [2021-03-10 17:50:23,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:50:23,597 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:50:23,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:23,610 INFO L225 Difference]: With dead ends: 15936 [2021-03-10 17:50:23,610 INFO L226 Difference]: Without dead ends: 15936 [2021-03-10 17:50:23,611 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1393.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:50:23,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15936 states. [2021-03-10 17:50:23,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15936 to 5591. [2021-03-10 17:50:23,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5591 states, 5589 states have (on average 2.5976024333512258) internal successors, (14518), 5590 states have internal predecessors, (14518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:23,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5591 states to 5591 states and 14518 transitions. [2021-03-10 17:50:23,726 INFO L78 Accepts]: Start accepts. Automaton has 5591 states and 14518 transitions. Word has length 108 [2021-03-10 17:50:23,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:23,727 INFO L480 AbstractCegarLoop]: Abstraction has 5591 states and 14518 transitions. [2021-03-10 17:50:23,727 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:23,727 INFO L276 IsEmpty]: Start isEmpty. Operand 5591 states and 14518 transitions. [2021-03-10 17:50:23,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:50:23,730 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:23,731 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:23,731 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-03-10 17:50:23,731 INFO L428 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]=== [2021-03-10 17:50:23,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:23,731 INFO L82 PathProgramCache]: Analyzing trace with hash 599630309, now seen corresponding path program 23 times [2021-03-10 17:50:23,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:23,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313408291] [2021-03-10 17:50:23,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:23,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:24,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:24,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313408291] [2021-03-10 17:50:24,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:24,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:50:24,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058029896] [2021-03-10 17:50:24,119 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:50:24,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:24,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:50:24,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:50:24,119 INFO L87 Difference]: Start difference. First operand 5591 states and 14518 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:24,866 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:50:25,027 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:50:25,202 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:50:25,384 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:50:25,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:25,505 INFO L93 Difference]: Finished difference Result 16880 states and 42795 transitions. [2021-03-10 17:50:25,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:50:25,505 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:50:25,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:25,521 INFO L225 Difference]: With dead ends: 16880 [2021-03-10 17:50:25,521 INFO L226 Difference]: Without dead ends: 16880 [2021-03-10 17:50:25,521 INFO L775 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 [2021-03-10 17:50:25,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16880 states. [2021-03-10 17:50:25,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16880 to 5574. [2021-03-10 17:50:25,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5574 states, 5572 states have (on average 2.596913137114142) internal successors, (14470), 5573 states have internal predecessors, (14470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:25,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5574 states to 5574 states and 14470 transitions. [2021-03-10 17:50:25,626 INFO L78 Accepts]: Start accepts. Automaton has 5574 states and 14470 transitions. Word has length 108 [2021-03-10 17:50:25,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:25,627 INFO L480 AbstractCegarLoop]: Abstraction has 5574 states and 14470 transitions. [2021-03-10 17:50:25,627 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:25,627 INFO L276 IsEmpty]: Start isEmpty. Operand 5574 states and 14470 transitions. [2021-03-10 17:50:25,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:50:25,631 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:25,631 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:25,631 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-03-10 17:50:25,631 INFO L428 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]=== [2021-03-10 17:50:25,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:25,631 INFO L82 PathProgramCache]: Analyzing trace with hash -613016127, now seen corresponding path program 24 times [2021-03-10 17:50:25,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:25,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814868148] [2021-03-10 17:50:25,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:25,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:26,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:26,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814868148] [2021-03-10 17:50:26,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:26,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:50:26,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051029516] [2021-03-10 17:50:26,014 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:50:26,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:26,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:50:26,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:50:26,015 INFO L87 Difference]: Start difference. First operand 5574 states and 14470 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:26,751 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:50:26,901 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:50:27,077 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:50:27,258 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:50:27,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:27,389 INFO L93 Difference]: Finished difference Result 18766 states and 47061 transitions. [2021-03-10 17:50:27,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:50:27,389 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:50:27,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:27,405 INFO L225 Difference]: With dead ends: 18766 [2021-03-10 17:50:27,405 INFO L226 Difference]: Without dead ends: 18766 [2021-03-10 17:50:27,405 INFO L775 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 [2021-03-10 17:50:27,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18766 states. [2021-03-10 17:50:27,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18766 to 5591. [2021-03-10 17:50:27,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5591 states, 5589 states have (on average 2.5976024333512258) internal successors, (14518), 5590 states have internal predecessors, (14518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:27,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5591 states to 5591 states and 14518 transitions. [2021-03-10 17:50:27,536 INFO L78 Accepts]: Start accepts. Automaton has 5591 states and 14518 transitions. Word has length 108 [2021-03-10 17:50:27,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:27,536 INFO L480 AbstractCegarLoop]: Abstraction has 5591 states and 14518 transitions. [2021-03-10 17:50:27,537 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:27,537 INFO L276 IsEmpty]: Start isEmpty. Operand 5591 states and 14518 transitions. [2021-03-10 17:50:27,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:50:27,540 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:27,540 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:27,540 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-03-10 17:50:27,541 INFO L428 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]=== [2021-03-10 17:50:27,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:27,541 INFO L82 PathProgramCache]: Analyzing trace with hash -2142173945, now seen corresponding path program 25 times [2021-03-10 17:50:27,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:27,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427289665] [2021-03-10 17:50:27,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:27,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:27,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:27,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427289665] [2021-03-10 17:50:27,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:27,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:50:27,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139388390] [2021-03-10 17:50:27,986 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:50:27,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:27,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:50:27,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:50:27,987 INFO L87 Difference]: Start difference. First operand 5591 states and 14518 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:28,661 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2021-03-10 17:50:28,829 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2021-03-10 17:50:28,993 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 55 [2021-03-10 17:50:29,173 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 60 [2021-03-10 17:50:29,371 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 66 [2021-03-10 17:50:29,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:29,487 INFO L93 Difference]: Finished difference Result 15621 states and 39318 transitions. [2021-03-10 17:50:29,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:50:29,488 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:50:29,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:29,502 INFO L225 Difference]: With dead ends: 15621 [2021-03-10 17:50:29,502 INFO L226 Difference]: Without dead ends: 15621 [2021-03-10 17:50:29,502 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1497.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:50:29,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15621 states. [2021-03-10 17:50:29,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15621 to 5523. [2021-03-10 17:50:29,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5523 states, 5521 states have (on average 2.594819779025539) internal successors, (14326), 5522 states have internal predecessors, (14326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:29,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5523 states to 5523 states and 14326 transitions. [2021-03-10 17:50:29,601 INFO L78 Accepts]: Start accepts. Automaton has 5523 states and 14326 transitions. Word has length 108 [2021-03-10 17:50:29,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:29,601 INFO L480 AbstractCegarLoop]: Abstraction has 5523 states and 14326 transitions. [2021-03-10 17:50:29,601 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:29,601 INFO L276 IsEmpty]: Start isEmpty. Operand 5523 states and 14326 transitions. [2021-03-10 17:50:29,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:50:29,605 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:29,605 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:29,606 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-03-10 17:50:29,606 INFO L428 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]=== [2021-03-10 17:50:29,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:29,606 INFO L82 PathProgramCache]: Analyzing trace with hash -1989373423, now seen corresponding path program 26 times [2021-03-10 17:50:29,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:29,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72414109] [2021-03-10 17:50:29,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:29,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:29,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:29,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72414109] [2021-03-10 17:50:29,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:29,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-10 17:50:29,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208984841] [2021-03-10 17:50:29,974 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 17:50:29,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:29,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 17:50:29,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:50:29,975 INFO L87 Difference]: Start difference. First operand 5523 states and 14326 transitions. Second operand has 19 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:31,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:31,122 INFO L93 Difference]: Finished difference Result 7838 states and 19172 transitions. [2021-03-10 17:50:31,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-03-10 17:50:31,122 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:50:31,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:31,153 INFO L225 Difference]: With dead ends: 7838 [2021-03-10 17:50:31,153 INFO L226 Difference]: Without dead ends: 7838 [2021-03-10 17:50:31,154 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 1021.6ms TimeCoverageRelationStatistics Valid=338, Invalid=922, Unknown=0, NotChecked=0, Total=1260 [2021-03-10 17:50:31,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7838 states. [2021-03-10 17:50:31,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7838 to 5635. [2021-03-10 17:50:31,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5635 states, 5633 states have (on average 2.5900940884075982) internal successors, (14590), 5634 states have internal predecessors, (14590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:31,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5635 states to 5635 states and 14590 transitions. [2021-03-10 17:50:31,228 INFO L78 Accepts]: Start accepts. Automaton has 5635 states and 14590 transitions. Word has length 108 [2021-03-10 17:50:31,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:31,228 INFO L480 AbstractCegarLoop]: Abstraction has 5635 states and 14590 transitions. [2021-03-10 17:50:31,228 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:31,228 INFO L276 IsEmpty]: Start isEmpty. Operand 5635 states and 14590 transitions. [2021-03-10 17:50:31,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:50:31,233 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:31,233 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:31,233 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-03-10 17:50:31,233 INFO L428 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]=== [2021-03-10 17:50:31,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:31,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1492835269, now seen corresponding path program 27 times [2021-03-10 17:50:31,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:31,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939769065] [2021-03-10 17:50:31,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:31,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:31,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:31,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939769065] [2021-03-10 17:50:31,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:31,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:50:31,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173319928] [2021-03-10 17:50:31,667 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:50:31,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:31,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:50:31,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:50:31,668 INFO L87 Difference]: Start difference. First operand 5635 states and 14590 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:32,423 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:50:32,574 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:50:32,764 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:50:32,961 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:50:33,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:33,081 INFO L93 Difference]: Finished difference Result 9908 states and 25471 transitions. [2021-03-10 17:50:33,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:50:33,081 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:50:33,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:33,090 INFO L225 Difference]: With dead ends: 9908 [2021-03-10 17:50:33,090 INFO L226 Difference]: Without dead ends: 9908 [2021-03-10 17:50:33,091 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1382.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:50:33,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9908 states. [2021-03-10 17:50:33,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9908 to 5883. [2021-03-10 17:50:33,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5883 states, 5881 states have (on average 2.599897976534603) internal successors, (15290), 5882 states have internal predecessors, (15290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:33,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5883 states to 5883 states and 15290 transitions. [2021-03-10 17:50:33,173 INFO L78 Accepts]: Start accepts. Automaton has 5883 states and 15290 transitions. Word has length 108 [2021-03-10 17:50:33,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:33,173 INFO L480 AbstractCegarLoop]: Abstraction has 5883 states and 15290 transitions. [2021-03-10 17:50:33,173 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:33,173 INFO L276 IsEmpty]: Start isEmpty. Operand 5883 states and 15290 transitions. [2021-03-10 17:50:33,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:50:33,178 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:33,178 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:33,178 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-03-10 17:50:33,178 INFO L428 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]=== [2021-03-10 17:50:33,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:33,178 INFO L82 PathProgramCache]: Analyzing trace with hash -1072992887, now seen corresponding path program 28 times [2021-03-10 17:50:33,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:33,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560712170] [2021-03-10 17:50:33,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:33,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:33,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:33,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560712170] [2021-03-10 17:50:33,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:33,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:50:33,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552711789] [2021-03-10 17:50:33,558 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:50:33,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:33,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:50:33,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:50:33,559 INFO L87 Difference]: Start difference. First operand 5883 states and 15290 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:34,322 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:50:34,516 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:50:34,701 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:50:34,895 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:50:35,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:35,027 INFO L93 Difference]: Finished difference Result 12587 states and 32200 transitions. [2021-03-10 17:50:35,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:50:35,027 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:50:35,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:35,038 INFO L225 Difference]: With dead ends: 12587 [2021-03-10 17:50:35,038 INFO L226 Difference]: Without dead ends: 12587 [2021-03-10 17:50:35,039 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1354.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:50:35,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12587 states. [2021-03-10 17:50:35,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12587 to 5900. [2021-03-10 17:50:35,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5900 states, 5898 states have (on average 2.600542556798915) internal successors, (15338), 5899 states have internal predecessors, (15338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:35,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5900 states to 5900 states and 15338 transitions. [2021-03-10 17:50:35,132 INFO L78 Accepts]: Start accepts. Automaton has 5900 states and 15338 transitions. Word has length 108 [2021-03-10 17:50:35,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:35,132 INFO L480 AbstractCegarLoop]: Abstraction has 5900 states and 15338 transitions. [2021-03-10 17:50:35,132 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:35,132 INFO L276 IsEmpty]: Start isEmpty. Operand 5900 states and 15338 transitions. [2021-03-10 17:50:35,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:50:35,136 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:35,136 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:35,136 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-03-10 17:50:35,136 INFO L428 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]=== [2021-03-10 17:50:35,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:35,136 INFO L82 PathProgramCache]: Analyzing trace with hash 864979909, now seen corresponding path program 29 times [2021-03-10 17:50:35,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:35,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748825856] [2021-03-10 17:50:35,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:35,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:35,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:35,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748825856] [2021-03-10 17:50:35,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:35,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:50:35,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030778424] [2021-03-10 17:50:35,560 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:50:35,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:35,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:50:35,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:50:35,560 INFO L87 Difference]: Start difference. First operand 5900 states and 15338 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:36,318 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:50:36,496 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:50:36,683 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:50:36,873 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:50:36,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:36,996 INFO L93 Difference]: Finished difference Result 10922 states and 27667 transitions. [2021-03-10 17:50:36,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:50:36,996 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:50:36,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:37,005 INFO L225 Difference]: With dead ends: 10922 [2021-03-10 17:50:37,005 INFO L226 Difference]: Without dead ends: 10922 [2021-03-10 17:50:37,005 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1391.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:50:37,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10922 states. [2021-03-10 17:50:37,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10922 to 5883. [2021-03-10 17:50:37,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5883 states, 5881 states have (on average 2.599897976534603) internal successors, (15290), 5882 states have internal predecessors, (15290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:37,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5883 states to 5883 states and 15290 transitions. [2021-03-10 17:50:37,084 INFO L78 Accepts]: Start accepts. Automaton has 5883 states and 15290 transitions. Word has length 108 [2021-03-10 17:50:37,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:37,084 INFO L480 AbstractCegarLoop]: Abstraction has 5883 states and 15290 transitions. [2021-03-10 17:50:37,084 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:37,084 INFO L276 IsEmpty]: Start isEmpty. Operand 5883 states and 15290 transitions. [2021-03-10 17:50:37,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:50:37,088 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:37,088 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:37,088 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-03-10 17:50:37,088 INFO L428 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]=== [2021-03-10 17:50:37,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:37,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1313364977, now seen corresponding path program 30 times [2021-03-10 17:50:37,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:37,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295539266] [2021-03-10 17:50:37,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:37,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:37,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:37,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295539266] [2021-03-10 17:50:37,441 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:37,441 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:50:37,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001110166] [2021-03-10 17:50:37,441 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:50:37,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:37,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:50:37,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:50:37,442 INFO L87 Difference]: Start difference. First operand 5883 states and 15290 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:38,215 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:50:38,370 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:50:38,547 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:50:38,740 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:50:38,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:38,878 INFO L93 Difference]: Finished difference Result 14074 states and 35632 transitions. [2021-03-10 17:50:38,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:50:38,879 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:50:38,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:38,893 INFO L225 Difference]: With dead ends: 14074 [2021-03-10 17:50:38,893 INFO L226 Difference]: Without dead ends: 14074 [2021-03-10 17:50:38,894 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1332.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:50:38,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14074 states. [2021-03-10 17:50:38,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14074 to 5917. [2021-03-10 17:50:38,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5917 states, 5915 states have (on average 2.6011834319526628) internal successors, (15386), 5916 states have internal predecessors, (15386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:39,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5917 states to 5917 states and 15386 transitions. [2021-03-10 17:50:39,007 INFO L78 Accepts]: Start accepts. Automaton has 5917 states and 15386 transitions. Word has length 108 [2021-03-10 17:50:39,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:39,007 INFO L480 AbstractCegarLoop]: Abstraction has 5917 states and 15386 transitions. [2021-03-10 17:50:39,007 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:39,007 INFO L276 IsEmpty]: Start isEmpty. Operand 5917 states and 15386 transitions. [2021-03-10 17:50:39,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:50:39,011 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:39,012 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:39,012 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-03-10 17:50:39,012 INFO L428 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]=== [2021-03-10 17:50:39,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:39,012 INFO L82 PathProgramCache]: Analyzing trace with hash 624607819, now seen corresponding path program 31 times [2021-03-10 17:50:39,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:39,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568243239] [2021-03-10 17:50:39,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:39,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:39,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:39,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568243239] [2021-03-10 17:50:39,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:39,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:50:39,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709881368] [2021-03-10 17:50:39,429 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:50:39,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:39,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:50:39,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:50:39,430 INFO L87 Difference]: Start difference. First operand 5917 states and 15386 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:40,220 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:50:40,379 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:50:40,568 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:50:40,757 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:50:40,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:40,930 INFO L93 Difference]: Finished difference Result 15018 states and 37654 transitions. [2021-03-10 17:50:40,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:50:40,931 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:50:40,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:40,941 INFO L225 Difference]: With dead ends: 15018 [2021-03-10 17:50:40,941 INFO L226 Difference]: Without dead ends: 15018 [2021-03-10 17:50:40,941 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1394.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:50:40,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15018 states. [2021-03-10 17:50:41,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15018 to 5900. [2021-03-10 17:50:41,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5900 states, 5898 states have (on average 2.600542556798915) internal successors, (15338), 5899 states have internal predecessors, (15338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:41,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5900 states to 5900 states and 15338 transitions. [2021-03-10 17:50:41,037 INFO L78 Accepts]: Start accepts. Automaton has 5900 states and 15338 transitions. Word has length 108 [2021-03-10 17:50:41,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:41,037 INFO L480 AbstractCegarLoop]: Abstraction has 5900 states and 15338 transitions. [2021-03-10 17:50:41,037 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:41,037 INFO L276 IsEmpty]: Start isEmpty. Operand 5900 states and 15338 transitions. [2021-03-10 17:50:41,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:50:41,044 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:41,044 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:41,044 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-03-10 17:50:41,044 INFO L428 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]=== [2021-03-10 17:50:41,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:41,044 INFO L82 PathProgramCache]: Analyzing trace with hash -588038617, now seen corresponding path program 32 times [2021-03-10 17:50:41,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:41,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526881002] [2021-03-10 17:50:41,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:41,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:41,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:41,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526881002] [2021-03-10 17:50:41,468 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:41,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:50:41,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494859972] [2021-03-10 17:50:41,469 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:50:41,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:41,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:50:41,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:50:41,470 INFO L87 Difference]: Start difference. First operand 5900 states and 15338 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:42,272 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:50:42,433 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:50:42,615 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:50:42,805 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:50:42,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:42,942 INFO L93 Difference]: Finished difference Result 14260 states and 35928 transitions. [2021-03-10 17:50:42,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:50:42,942 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:50:42,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:42,955 INFO L225 Difference]: With dead ends: 14260 [2021-03-10 17:50:42,956 INFO L226 Difference]: Without dead ends: 14260 [2021-03-10 17:50:42,956 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1405.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:50:42,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14260 states. [2021-03-10 17:50:43,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14260 to 5917. [2021-03-10 17:50:43,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5917 states, 5915 states have (on average 2.6011834319526628) internal successors, (15386), 5916 states have internal predecessors, (15386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:43,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5917 states to 5917 states and 15386 transitions. [2021-03-10 17:50:43,053 INFO L78 Accepts]: Start accepts. Automaton has 5917 states and 15386 transitions. Word has length 108 [2021-03-10 17:50:43,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:43,054 INFO L480 AbstractCegarLoop]: Abstraction has 5917 states and 15386 transitions. [2021-03-10 17:50:43,054 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:43,054 INFO L276 IsEmpty]: Start isEmpty. Operand 5917 states and 15386 transitions. [2021-03-10 17:50:43,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:50:43,058 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:43,058 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:43,058 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-03-10 17:50:43,058 INFO L428 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]=== [2021-03-10 17:50:43,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:43,058 INFO L82 PathProgramCache]: Analyzing trace with hash -2117196435, now seen corresponding path program 33 times [2021-03-10 17:50:43,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:43,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258175606] [2021-03-10 17:50:43,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:43,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:43,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:43,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258175606] [2021-03-10 17:50:43,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:43,393 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:50:43,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417367882] [2021-03-10 17:50:43,393 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:50:43,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:43,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:50:43,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:50:43,394 INFO L87 Difference]: Start difference. First operand 5917 states and 15386 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:44,096 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2021-03-10 17:50:44,264 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2021-03-10 17:50:44,443 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2021-03-10 17:50:44,633 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 63 [2021-03-10 17:50:44,839 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2021-03-10 17:50:44,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:44,949 INFO L93 Difference]: Finished difference Result 11115 states and 28185 transitions. [2021-03-10 17:50:44,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:50:44,949 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:50:44,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:44,958 INFO L225 Difference]: With dead ends: 11115 [2021-03-10 17:50:44,959 INFO L226 Difference]: Without dead ends: 11115 [2021-03-10 17:50:44,959 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1453.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:50:44,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11115 states. [2021-03-10 17:50:45,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11115 to 5883. [2021-03-10 17:50:45,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5883 states, 5881 states have (on average 2.599897976534603) internal successors, (15290), 5882 states have internal predecessors, (15290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:45,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5883 states to 5883 states and 15290 transitions. [2021-03-10 17:50:45,039 INFO L78 Accepts]: Start accepts. Automaton has 5883 states and 15290 transitions. Word has length 108 [2021-03-10 17:50:45,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:45,039 INFO L480 AbstractCegarLoop]: Abstraction has 5883 states and 15290 transitions. [2021-03-10 17:50:45,039 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:45,039 INFO L276 IsEmpty]: Start isEmpty. Operand 5883 states and 15290 transitions. [2021-03-10 17:50:45,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:50:45,043 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:45,043 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:45,043 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-03-10 17:50:45,043 INFO L428 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]=== [2021-03-10 17:50:45,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:45,043 INFO L82 PathProgramCache]: Analyzing trace with hash -873400343, now seen corresponding path program 34 times [2021-03-10 17:50:45,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:45,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399729131] [2021-03-10 17:50:45,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:45,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:45,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:45,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399729131] [2021-03-10 17:50:45,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:45,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:50:45,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637386808] [2021-03-10 17:50:45,426 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:50:45,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:45,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:50:45,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:50:45,427 INFO L87 Difference]: Start difference. First operand 5883 states and 15290 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:46,094 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2021-03-10 17:50:46,251 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2021-03-10 17:50:46,421 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2021-03-10 17:50:46,630 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2021-03-10 17:50:46,845 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2021-03-10 17:50:46,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:46,989 INFO L93 Difference]: Finished difference Result 12731 states and 32704 transitions. [2021-03-10 17:50:46,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:50:46,989 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:50:46,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:47,001 INFO L225 Difference]: With dead ends: 12731 [2021-03-10 17:50:47,001 INFO L226 Difference]: Without dead ends: 12731 [2021-03-10 17:50:47,001 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1481.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:50:47,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12731 states. [2021-03-10 17:50:47,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12731 to 5962. [2021-03-10 17:50:47,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5962 states, 5960 states have (on average 2.603187919463087) internal successors, (15515), 5961 states have internal predecessors, (15515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:47,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5962 states to 5962 states and 15515 transitions. [2021-03-10 17:50:47,093 INFO L78 Accepts]: Start accepts. Automaton has 5962 states and 15515 transitions. Word has length 108 [2021-03-10 17:50:47,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:47,093 INFO L480 AbstractCegarLoop]: Abstraction has 5962 states and 15515 transitions. [2021-03-10 17:50:47,093 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:47,093 INFO L276 IsEmpty]: Start isEmpty. Operand 5962 states and 15515 transitions. [2021-03-10 17:50:47,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:50:47,097 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:47,097 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:47,097 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-03-10 17:50:47,098 INFO L428 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]=== [2021-03-10 17:50:47,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:47,098 INFO L82 PathProgramCache]: Analyzing trace with hash -1978279289, now seen corresponding path program 35 times [2021-03-10 17:50:47,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:47,098 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140784708] [2021-03-10 17:50:47,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:47,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:47,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:47,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140784708] [2021-03-10 17:50:47,596 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:47,596 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:50:47,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607570540] [2021-03-10 17:50:47,596 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:50:47,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:47,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:50:47,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:50:47,597 INFO L87 Difference]: Start difference. First operand 5962 states and 15515 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:48,462 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:50:48,642 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:50:48,824 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:50:49,016 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:50:49,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:49,170 INFO L93 Difference]: Finished difference Result 15776 states and 40193 transitions. [2021-03-10 17:50:49,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:50:49,170 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:50:49,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:49,184 INFO L225 Difference]: With dead ends: 15776 [2021-03-10 17:50:49,184 INFO L226 Difference]: Without dead ends: 15776 [2021-03-10 17:50:49,185 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1501.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:50:49,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15776 states. [2021-03-10 17:50:49,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15776 to 5979. [2021-03-10 17:50:49,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5979 states, 5977 states have (on average 2.6038146227204284) internal successors, (15563), 5978 states have internal predecessors, (15563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:49,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5979 states to 5979 states and 15563 transitions. [2021-03-10 17:50:49,288 INFO L78 Accepts]: Start accepts. Automaton has 5979 states and 15563 transitions. Word has length 108 [2021-03-10 17:50:49,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:49,288 INFO L480 AbstractCegarLoop]: Abstraction has 5979 states and 15563 transitions. [2021-03-10 17:50:49,288 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:49,288 INFO L276 IsEmpty]: Start isEmpty. Operand 5979 states and 15563 transitions. [2021-03-10 17:50:49,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:50:49,292 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:49,292 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:49,292 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-03-10 17:50:49,292 INFO L428 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]=== [2021-03-10 17:50:49,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:49,292 INFO L82 PathProgramCache]: Analyzing trace with hash 787530189, now seen corresponding path program 36 times [2021-03-10 17:50:49,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:49,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826430405] [2021-03-10 17:50:49,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:49,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:49,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:49,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826430405] [2021-03-10 17:50:49,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:49,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:50:49,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958097133] [2021-03-10 17:50:49,655 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:50:49,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:49,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:50:49,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:50:49,655 INFO L87 Difference]: Start difference. First operand 5979 states and 15563 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:50,346 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2021-03-10 17:50:50,507 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2021-03-10 17:50:50,738 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2021-03-10 17:50:50,933 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2021-03-10 17:50:51,152 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2021-03-10 17:50:51,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:51,291 INFO L93 Difference]: Finished difference Result 13941 states and 35340 transitions. [2021-03-10 17:50:51,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:50:51,291 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:50:51,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:51,305 INFO L225 Difference]: With dead ends: 13941 [2021-03-10 17:50:51,305 INFO L226 Difference]: Without dead ends: 13941 [2021-03-10 17:50:51,306 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1514.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:50:51,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13941 states. [2021-03-10 17:50:51,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13941 to 5928. [2021-03-10 17:50:51,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5928 states, 5926 states have (on average 2.6019237259534256) internal successors, (15419), 5927 states have internal predecessors, (15419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:51,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5928 states to 5928 states and 15419 transitions. [2021-03-10 17:50:51,409 INFO L78 Accepts]: Start accepts. Automaton has 5928 states and 15419 transitions. Word has length 108 [2021-03-10 17:50:51,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:51,409 INFO L480 AbstractCegarLoop]: Abstraction has 5928 states and 15419 transitions. [2021-03-10 17:50:51,409 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:51,409 INFO L276 IsEmpty]: Start isEmpty. Operand 5928 states and 15419 transitions. [2021-03-10 17:50:51,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:50:51,413 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:51,413 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:51,413 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-03-10 17:50:51,413 INFO L428 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]=== [2021-03-10 17:50:51,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:51,414 INFO L82 PathProgramCache]: Analyzing trace with hash 2023925931, now seen corresponding path program 37 times [2021-03-10 17:50:51,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:51,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62017829] [2021-03-10 17:50:51,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:51,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:51,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:51,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62017829] [2021-03-10 17:50:51,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:51,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:50:51,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205523735] [2021-03-10 17:50:51,732 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:50:51,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:51,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:50:51,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:50:51,733 INFO L87 Difference]: Start difference. First operand 5928 states and 15419 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:52,504 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:50:52,657 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:50:52,831 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:50:53,019 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:50:53,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:53,141 INFO L93 Difference]: Finished difference Result 10234 states and 26241 transitions. [2021-03-10 17:50:53,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:50:53,142 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:50:53,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:53,150 INFO L225 Difference]: With dead ends: 10234 [2021-03-10 17:50:53,150 INFO L226 Difference]: Without dead ends: 10234 [2021-03-10 17:50:53,150 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1304.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:50:53,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10234 states. [2021-03-10 17:50:53,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10234 to 5954. [2021-03-10 17:50:53,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5954 states, 5952 states have (on average 2.603326612903226) internal successors, (15495), 5953 states have internal predecessors, (15495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:53,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5954 states to 5954 states and 15495 transitions. [2021-03-10 17:50:53,234 INFO L78 Accepts]: Start accepts. Automaton has 5954 states and 15495 transitions. Word has length 108 [2021-03-10 17:50:53,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:53,235 INFO L480 AbstractCegarLoop]: Abstraction has 5954 states and 15495 transitions. [2021-03-10 17:50:53,235 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:53,235 INFO L276 IsEmpty]: Start isEmpty. Operand 5954 states and 15495 transitions. [2021-03-10 17:50:53,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:50:53,239 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:53,240 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:53,240 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-03-10 17:50:53,240 INFO L428 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]=== [2021-03-10 17:50:53,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:53,240 INFO L82 PathProgramCache]: Analyzing trace with hash -333068569, now seen corresponding path program 38 times [2021-03-10 17:50:53,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:53,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936762951] [2021-03-10 17:50:53,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:53,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:53,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:53,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936762951] [2021-03-10 17:50:53,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:53,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:50:53,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487275000] [2021-03-10 17:50:53,613 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:50:53,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:53,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:50:53,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:50:53,614 INFO L87 Difference]: Start difference. First operand 5954 states and 15495 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:54,386 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:50:54,539 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:50:54,728 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:50:54,911 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:50:55,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:55,045 INFO L93 Difference]: Finished difference Result 11178 states and 28263 transitions. [2021-03-10 17:50:55,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:50:55,045 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:50:55,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:55,055 INFO L225 Difference]: With dead ends: 11178 [2021-03-10 17:50:55,055 INFO L226 Difference]: Without dead ends: 11178 [2021-03-10 17:50:55,055 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1354.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:50:55,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11178 states. [2021-03-10 17:50:55,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11178 to 5937. [2021-03-10 17:50:55,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5937 states, 5935 states have (on average 2.6026958719460827) internal successors, (15447), 5936 states have internal predecessors, (15447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:55,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5937 states to 5937 states and 15447 transitions. [2021-03-10 17:50:55,136 INFO L78 Accepts]: Start accepts. Automaton has 5937 states and 15447 transitions. Word has length 108 [2021-03-10 17:50:55,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:55,136 INFO L480 AbstractCegarLoop]: Abstraction has 5937 states and 15447 transitions. [2021-03-10 17:50:55,136 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:55,136 INFO L276 IsEmpty]: Start isEmpty. Operand 5937 states and 15447 transitions. [2021-03-10 17:50:55,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:50:55,140 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:55,140 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:55,140 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-03-10 17:50:55,140 INFO L428 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]=== [2021-03-10 17:50:55,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:55,141 INFO L82 PathProgramCache]: Analyzing trace with hash -1545715005, now seen corresponding path program 39 times [2021-03-10 17:50:55,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:55,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093226395] [2021-03-10 17:50:55,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:55,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:55,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:55,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093226395] [2021-03-10 17:50:55,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:55,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:50:55,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805114591] [2021-03-10 17:50:55,465 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:50:55,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:55,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:50:55,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:50:55,466 INFO L87 Difference]: Start difference. First operand 5937 states and 15447 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:56,230 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:50:56,405 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:50:56,586 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:50:56,768 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:50:56,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:56,919 INFO L93 Difference]: Finished difference Result 14499 states and 36476 transitions. [2021-03-10 17:50:56,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:50:56,920 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:50:56,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:56,930 INFO L225 Difference]: With dead ends: 14499 [2021-03-10 17:50:56,930 INFO L226 Difference]: Without dead ends: 14499 [2021-03-10 17:50:56,930 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1356.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:50:56,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14499 states. [2021-03-10 17:50:57,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14499 to 5954. [2021-03-10 17:50:57,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5954 states, 5952 states have (on average 2.603326612903226) internal successors, (15495), 5953 states have internal predecessors, (15495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:57,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5954 states to 5954 states and 15495 transitions. [2021-03-10 17:50:57,022 INFO L78 Accepts]: Start accepts. Automaton has 5954 states and 15495 transitions. Word has length 108 [2021-03-10 17:50:57,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:57,022 INFO L480 AbstractCegarLoop]: Abstraction has 5954 states and 15495 transitions. [2021-03-10 17:50:57,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:57,023 INFO L276 IsEmpty]: Start isEmpty. Operand 5954 states and 15495 transitions. [2021-03-10 17:50:57,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:50:57,027 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:57,027 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:57,027 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-03-10 17:50:57,027 INFO L428 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]=== [2021-03-10 17:50:57,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:57,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1220094473, now seen corresponding path program 40 times [2021-03-10 17:50:57,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:57,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319553159] [2021-03-10 17:50:57,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:57,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:57,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:57,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319553159] [2021-03-10 17:50:57,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:57,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:50:57,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731897684] [2021-03-10 17:50:57,357 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:50:57,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:57,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:50:57,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:50:57,358 INFO L87 Difference]: Start difference. First operand 5954 states and 15495 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:58,025 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2021-03-10 17:50:58,202 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2021-03-10 17:50:58,378 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2021-03-10 17:50:58,572 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 62 [2021-03-10 17:50:58,776 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2021-03-10 17:50:58,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:58,891 INFO L93 Difference]: Finished difference Result 11354 states and 28733 transitions. [2021-03-10 17:50:58,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:50:58,891 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:50:58,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:58,901 INFO L225 Difference]: With dead ends: 11354 [2021-03-10 17:50:58,901 INFO L226 Difference]: Without dead ends: 11354 [2021-03-10 17:50:58,901 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1459.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:50:58,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11354 states. [2021-03-10 17:50:58,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11354 to 5886. [2021-03-10 17:50:58,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5886 states, 5884 states have (on average 2.6007817811012917) internal successors, (15303), 5885 states have internal predecessors, (15303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:58,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5886 states to 5886 states and 15303 transitions. [2021-03-10 17:50:58,979 INFO L78 Accepts]: Start accepts. Automaton has 5886 states and 15303 transitions. Word has length 108 [2021-03-10 17:50:58,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:58,980 INFO L480 AbstractCegarLoop]: Abstraction has 5886 states and 15303 transitions. [2021-03-10 17:50:58,980 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:58,980 INFO L276 IsEmpty]: Start isEmpty. Operand 5886 states and 15303 transitions. [2021-03-10 17:50:58,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:50:58,984 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:58,984 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:58,984 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-03-10 17:50:58,984 INFO L428 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]=== [2021-03-10 17:50:58,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:58,984 INFO L82 PathProgramCache]: Analyzing trace with hash 1005185451, now seen corresponding path program 41 times [2021-03-10 17:50:58,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:58,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035360655] [2021-03-10 17:50:58,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:58,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:59,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:59,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035360655] [2021-03-10 17:50:59,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:59,440 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:50:59,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798164895] [2021-03-10 17:50:59,440 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:50:59,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:59,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:50:59,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:50:59,440 INFO L87 Difference]: Start difference. First operand 5886 states and 15303 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:59,984 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 38 [2021-03-10 17:51:00,132 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2021-03-10 17:51:00,278 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2021-03-10 17:51:00,442 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2021-03-10 17:51:00,621 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2021-03-10 17:51:00,841 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-03-10 17:51:01,054 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2021-03-10 17:51:01,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:01,211 INFO L93 Difference]: Finished difference Result 15885 states and 40658 transitions. [2021-03-10 17:51:01,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:51:01,211 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:51:01,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:01,225 INFO L225 Difference]: With dead ends: 15885 [2021-03-10 17:51:01,226 INFO L226 Difference]: Without dead ends: 15885 [2021-03-10 17:51:01,226 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1710.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:51:01,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15885 states. [2021-03-10 17:51:01,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15885 to 5937. [2021-03-10 17:51:01,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5937 states, 5935 states have (on average 2.6026958719460827) internal successors, (15447), 5936 states have internal predecessors, (15447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:01,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5937 states to 5937 states and 15447 transitions. [2021-03-10 17:51:01,331 INFO L78 Accepts]: Start accepts. Automaton has 5937 states and 15447 transitions. Word has length 108 [2021-03-10 17:51:01,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:01,331 INFO L480 AbstractCegarLoop]: Abstraction has 5937 states and 15447 transitions. [2021-03-10 17:51:01,331 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:01,331 INFO L276 IsEmpty]: Start isEmpty. Operand 5937 states and 15447 transitions. [2021-03-10 17:51:01,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:51:01,335 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:01,335 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:01,335 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-03-10 17:51:01,335 INFO L428 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]=== [2021-03-10 17:51:01,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:01,335 INFO L82 PathProgramCache]: Analyzing trace with hash -99693495, now seen corresponding path program 42 times [2021-03-10 17:51:01,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:01,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696033894] [2021-03-10 17:51:01,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:01,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:01,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:01,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696033894] [2021-03-10 17:51:01,693 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:01,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:51:01,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823577824] [2021-03-10 17:51:01,693 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:51:01,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:01,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:51:01,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:51:01,694 INFO L87 Difference]: Start difference. First operand 5937 states and 15447 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:02,455 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:51:02,639 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:51:02,826 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:51:03,016 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:51:03,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:03,172 INFO L93 Difference]: Finished difference Result 15401 states and 38934 transitions. [2021-03-10 17:51:03,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:51:03,172 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:51:03,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:03,186 INFO L225 Difference]: With dead ends: 15401 [2021-03-10 17:51:03,186 INFO L226 Difference]: Without dead ends: 15401 [2021-03-10 17:51:03,186 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1356.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:51:03,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15401 states. [2021-03-10 17:51:03,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15401 to 5954. [2021-03-10 17:51:03,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5954 states, 5952 states have (on average 2.603326612903226) internal successors, (15495), 5953 states have internal predecessors, (15495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:03,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5954 states to 5954 states and 15495 transitions. [2021-03-10 17:51:03,309 INFO L78 Accepts]: Start accepts. Automaton has 5954 states and 15495 transitions. Word has length 108 [2021-03-10 17:51:03,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:03,309 INFO L480 AbstractCegarLoop]: Abstraction has 5954 states and 15495 transitions. [2021-03-10 17:51:03,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:03,309 INFO L276 IsEmpty]: Start isEmpty. Operand 5954 states and 15495 transitions. [2021-03-10 17:51:03,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:51:03,313 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:03,313 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:03,313 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-03-10 17:51:03,313 INFO L428 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]=== [2021-03-10 17:51:03,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:03,314 INFO L82 PathProgramCache]: Analyzing trace with hash -1628851313, now seen corresponding path program 43 times [2021-03-10 17:51:03,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:03,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346750873] [2021-03-10 17:51:03,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:03,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:03,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:03,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346750873] [2021-03-10 17:51:03,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:03,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:51:03,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495040702] [2021-03-10 17:51:03,698 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:51:03,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:03,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:51:03,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:51:03,699 INFO L87 Difference]: Start difference. First operand 5954 states and 15495 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:04,390 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2021-03-10 17:51:04,553 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2021-03-10 17:51:04,765 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2021-03-10 17:51:04,971 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-03-10 17:51:05,181 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2021-03-10 17:51:05,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:05,330 INFO L93 Difference]: Finished difference Result 15231 states and 38524 transitions. [2021-03-10 17:51:05,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:51:05,330 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:51:05,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:05,343 INFO L225 Difference]: With dead ends: 15231 [2021-03-10 17:51:05,343 INFO L226 Difference]: Without dead ends: 15231 [2021-03-10 17:51:05,344 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1516.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:51:05,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15231 states. [2021-03-10 17:51:05,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15231 to 5903. [2021-03-10 17:51:05,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5903 states, 5901 states have (on average 2.601423487544484) internal successors, (15351), 5902 states have internal predecessors, (15351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:05,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5903 states to 5903 states and 15351 transitions. [2021-03-10 17:51:05,441 INFO L78 Accepts]: Start accepts. Automaton has 5903 states and 15351 transitions. Word has length 108 [2021-03-10 17:51:05,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:05,441 INFO L480 AbstractCegarLoop]: Abstraction has 5903 states and 15351 transitions. [2021-03-10 17:51:05,441 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:05,442 INFO L276 IsEmpty]: Start isEmpty. Operand 5903 states and 15351 transitions. [2021-03-10 17:51:05,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:51:05,446 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:05,446 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:05,446 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-03-10 17:51:05,446 INFO L428 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]=== [2021-03-10 17:51:05,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:05,446 INFO L82 PathProgramCache]: Analyzing trace with hash 640673865, now seen corresponding path program 44 times [2021-03-10 17:51:05,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:05,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143729394] [2021-03-10 17:51:05,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:05,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:05,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:05,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143729394] [2021-03-10 17:51:05,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:05,919 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:51:05,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418165435] [2021-03-10 17:51:05,920 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:51:05,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:05,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:51:05,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:51:05,920 INFO L87 Difference]: Start difference. First operand 5903 states and 15351 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:06,513 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2021-03-10 17:51:06,661 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2021-03-10 17:51:06,817 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2021-03-10 17:51:06,992 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2021-03-10 17:51:07,243 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-03-10 17:51:07,456 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2021-03-10 17:51:07,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:07,580 INFO L93 Difference]: Finished difference Result 11630 states and 29617 transitions. [2021-03-10 17:51:07,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:51:07,581 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:51:07,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:07,590 INFO L225 Difference]: With dead ends: 11630 [2021-03-10 17:51:07,591 INFO L226 Difference]: Without dead ends: 11630 [2021-03-10 17:51:07,591 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1641.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:51:07,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11630 states. [2021-03-10 17:51:07,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11630 to 5869. [2021-03-10 17:51:07,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5869 states, 5867 states have (on average 2.60013635588887) internal successors, (15255), 5868 states have internal predecessors, (15255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:07,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5869 states to 5869 states and 15255 transitions. [2021-03-10 17:51:07,672 INFO L78 Accepts]: Start accepts. Automaton has 5869 states and 15255 transitions. Word has length 108 [2021-03-10 17:51:07,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:07,673 INFO L480 AbstractCegarLoop]: Abstraction has 5869 states and 15255 transitions. [2021-03-10 17:51:07,673 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:07,673 INFO L276 IsEmpty]: Start isEmpty. Operand 5869 states and 15255 transitions. [2021-03-10 17:51:07,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:51:07,677 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:07,677 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:07,677 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-03-10 17:51:07,677 INFO L428 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]=== [2021-03-10 17:51:07,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:07,677 INFO L82 PathProgramCache]: Analyzing trace with hash -1252217657, now seen corresponding path program 45 times [2021-03-10 17:51:07,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:07,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423665466] [2021-03-10 17:51:07,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:07,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:08,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:08,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423665466] [2021-03-10 17:51:08,079 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:08,079 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:51:08,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398200496] [2021-03-10 17:51:08,080 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:51:08,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:08,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:51:08,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:51:08,080 INFO L87 Difference]: Start difference. First operand 5869 states and 15255 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:08,763 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2021-03-10 17:51:08,927 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2021-03-10 17:51:09,103 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2021-03-10 17:51:09,319 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-03-10 17:51:09,539 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2021-03-10 17:51:09,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:09,674 INFO L93 Difference]: Finished difference Result 10670 states and 27701 transitions. [2021-03-10 17:51:09,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:51:09,675 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:51:09,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:09,684 INFO L225 Difference]: With dead ends: 10670 [2021-03-10 17:51:09,684 INFO L226 Difference]: Without dead ends: 10670 [2021-03-10 17:51:09,685 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1547.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:51:09,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10670 states. [2021-03-10 17:51:09,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10670 to 5914. [2021-03-10 17:51:09,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5914 states, 5912 states have (on average 2.602165087956698) internal successors, (15384), 5913 states have internal predecessors, (15384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:09,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5914 states to 5914 states and 15384 transitions. [2021-03-10 17:51:09,786 INFO L78 Accepts]: Start accepts. Automaton has 5914 states and 15384 transitions. Word has length 108 [2021-03-10 17:51:09,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:09,787 INFO L480 AbstractCegarLoop]: Abstraction has 5914 states and 15384 transitions. [2021-03-10 17:51:09,787 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:09,787 INFO L276 IsEmpty]: Start isEmpty. Operand 5914 states and 15384 transitions. [2021-03-10 17:51:09,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:51:09,793 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:09,793 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:09,793 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-03-10 17:51:09,793 INFO L428 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]=== [2021-03-10 17:51:09,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:09,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1937870693, now seen corresponding path program 46 times [2021-03-10 17:51:09,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:09,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990904737] [2021-03-10 17:51:09,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:09,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:10,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:10,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990904737] [2021-03-10 17:51:10,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:10,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:51:10,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492186515] [2021-03-10 17:51:10,185 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:51:10,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:10,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:51:10,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:51:10,186 INFO L87 Difference]: Start difference. First operand 5914 states and 15384 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:10,922 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:51:11,095 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:51:11,274 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:51:11,460 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:51:11,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:11,583 INFO L93 Difference]: Finished difference Result 10186 states and 25977 transitions. [2021-03-10 17:51:11,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:51:11,584 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:51:11,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:11,592 INFO L225 Difference]: With dead ends: 10186 [2021-03-10 17:51:11,592 INFO L226 Difference]: Without dead ends: 10186 [2021-03-10 17:51:11,592 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1370.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:51:11,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10186 states. [2021-03-10 17:51:11,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10186 to 5923. [2021-03-10 17:51:11,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5923 states, 5921 states have (on average 2.6029386927883804) internal successors, (15412), 5922 states have internal predecessors, (15412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:11,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5923 states to 5923 states and 15412 transitions. [2021-03-10 17:51:11,669 INFO L78 Accepts]: Start accepts. Automaton has 5923 states and 15412 transitions. Word has length 108 [2021-03-10 17:51:11,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:11,669 INFO L480 AbstractCegarLoop]: Abstraction has 5923 states and 15412 transitions. [2021-03-10 17:51:11,669 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:11,669 INFO L276 IsEmpty]: Start isEmpty. Operand 5923 states and 15412 transitions. [2021-03-10 17:51:11,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:51:11,673 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:11,673 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:11,673 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-03-10 17:51:11,673 INFO L428 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]=== [2021-03-10 17:51:11,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:11,674 INFO L82 PathProgramCache]: Analyzing trace with hash 408712875, now seen corresponding path program 47 times [2021-03-10 17:51:11,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:11,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549117062] [2021-03-10 17:51:11,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:11,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:12,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:12,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549117062] [2021-03-10 17:51:12,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:12,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:51:12,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112106966] [2021-03-10 17:51:12,091 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:51:12,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:12,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:51:12,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:51:12,092 INFO L87 Difference]: Start difference. First operand 5923 states and 15412 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:12,774 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2021-03-10 17:51:12,955 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2021-03-10 17:51:13,158 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2021-03-10 17:51:13,357 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-03-10 17:51:13,575 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2021-03-10 17:51:13,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:13,694 INFO L93 Difference]: Finished difference Result 10016 states and 25567 transitions. [2021-03-10 17:51:13,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:51:13,694 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:51:13,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:13,702 INFO L225 Difference]: With dead ends: 10016 [2021-03-10 17:51:13,702 INFO L226 Difference]: Without dead ends: 10016 [2021-03-10 17:51:13,703 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1595.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:51:13,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10016 states. [2021-03-10 17:51:13,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10016 to 5872. [2021-03-10 17:51:13,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5872 states, 5870 states have (on average 2.601022146507666) internal successors, (15268), 5871 states have internal predecessors, (15268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:13,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5872 states to 5872 states and 15268 transitions. [2021-03-10 17:51:13,776 INFO L78 Accepts]: Start accepts. Automaton has 5872 states and 15268 transitions. Word has length 108 [2021-03-10 17:51:13,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:13,776 INFO L480 AbstractCegarLoop]: Abstraction has 5872 states and 15268 transitions. [2021-03-10 17:51:13,777 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:13,777 INFO L276 IsEmpty]: Start isEmpty. Operand 5872 states and 15268 transitions. [2021-03-10 17:51:13,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:51:13,780 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:13,781 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:13,781 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-03-10 17:51:13,781 INFO L428 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]=== [2021-03-10 17:51:13,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:13,781 INFO L82 PathProgramCache]: Analyzing trace with hash -1616729243, now seen corresponding path program 48 times [2021-03-10 17:51:13,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:13,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85840939] [2021-03-10 17:51:13,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:13,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:14,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:14,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85840939] [2021-03-10 17:51:14,236 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:14,236 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:51:14,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549705875] [2021-03-10 17:51:14,236 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:51:14,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:14,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:51:14,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:51:14,237 INFO L87 Difference]: Start difference. First operand 5872 states and 15268 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:14,930 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2021-03-10 17:51:15,087 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2021-03-10 17:51:15,262 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2021-03-10 17:51:15,493 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-03-10 17:51:15,717 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2021-03-10 17:51:15,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:15,834 INFO L93 Difference]: Finished difference Result 10224 states and 26243 transitions. [2021-03-10 17:51:15,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:51:15,834 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:51:15,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:15,843 INFO L225 Difference]: With dead ends: 10224 [2021-03-10 17:51:15,843 INFO L226 Difference]: Without dead ends: 10224 [2021-03-10 17:51:15,843 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1586.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:51:15,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10224 states. [2021-03-10 17:51:15,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10224 to 5855. [2021-03-10 17:51:15,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5855 states, 5853 states have (on average 2.6003758756193407) internal successors, (15220), 5854 states have internal predecessors, (15220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:15,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5855 states to 5855 states and 15220 transitions. [2021-03-10 17:51:15,917 INFO L78 Accepts]: Start accepts. Automaton has 5855 states and 15220 transitions. Word has length 108 [2021-03-10 17:51:15,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:15,917 INFO L480 AbstractCegarLoop]: Abstraction has 5855 states and 15220 transitions. [2021-03-10 17:51:15,917 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:15,917 INFO L276 IsEmpty]: Start isEmpty. Operand 5855 states and 15220 transitions. [2021-03-10 17:51:15,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:51:15,921 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:15,921 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:15,921 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-03-10 17:51:15,921 INFO L428 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]=== [2021-03-10 17:51:15,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:15,921 INFO L82 PathProgramCache]: Analyzing trace with hash 991967371, now seen corresponding path program 49 times [2021-03-10 17:51:15,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:15,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915805347] [2021-03-10 17:51:15,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:15,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:16,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:16,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915805347] [2021-03-10 17:51:16,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:16,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-10 17:51:16,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19599771] [2021-03-10 17:51:16,342 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 17:51:16,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:16,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 17:51:16,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:51:16,342 INFO L87 Difference]: Start difference. First operand 5855 states and 15220 transitions. Second operand has 19 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:17,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:17,367 INFO L93 Difference]: Finished difference Result 6810 states and 17163 transitions. [2021-03-10 17:51:17,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:51:17,367 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:51:17,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:17,373 INFO L225 Difference]: With dead ends: 6810 [2021-03-10 17:51:17,373 INFO L226 Difference]: Without dead ends: 6810 [2021-03-10 17:51:17,373 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 960.6ms TimeCoverageRelationStatistics Valid=316, Invalid=944, Unknown=0, NotChecked=0, Total=1260 [2021-03-10 17:51:17,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6810 states. [2021-03-10 17:51:17,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6810 to 5413. [2021-03-10 17:51:17,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5413 states, 5411 states have (on average 2.6250231010903713) internal successors, (14204), 5412 states have internal predecessors, (14204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:17,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5413 states to 5413 states and 14204 transitions. [2021-03-10 17:51:17,431 INFO L78 Accepts]: Start accepts. Automaton has 5413 states and 14204 transitions. Word has length 108 [2021-03-10 17:51:17,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:17,431 INFO L480 AbstractCegarLoop]: Abstraction has 5413 states and 14204 transitions. [2021-03-10 17:51:17,431 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:17,431 INFO L276 IsEmpty]: Start isEmpty. Operand 5413 states and 14204 transitions. [2021-03-10 17:51:17,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:51:17,435 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:17,435 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:17,435 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-03-10 17:51:17,435 INFO L428 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]=== [2021-03-10 17:51:17,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:17,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1192298901, now seen corresponding path program 50 times [2021-03-10 17:51:17,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:17,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493568574] [2021-03-10 17:51:17,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:17,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:17,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:17,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493568574] [2021-03-10 17:51:17,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:17,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:51:17,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463981035] [2021-03-10 17:51:17,832 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:51:17,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:17,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:51:17,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:51:17,832 INFO L87 Difference]: Start difference. First operand 5413 states and 14204 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:18,527 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2021-03-10 17:51:18,679 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2021-03-10 17:51:18,862 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2021-03-10 17:51:19,090 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-03-10 17:51:19,306 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2021-03-10 17:51:19,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:19,433 INFO L93 Difference]: Finished difference Result 6209 states and 16224 transitions. [2021-03-10 17:51:19,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:51:19,434 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:51:19,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:19,439 INFO L225 Difference]: With dead ends: 6209 [2021-03-10 17:51:19,439 INFO L226 Difference]: Without dead ends: 6209 [2021-03-10 17:51:19,439 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1531.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:51:19,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6209 states. [2021-03-10 17:51:19,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6209 to 5409. [2021-03-10 17:51:19,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5409 states, 5407 states have (on average 2.6251155909006845) internal successors, (14194), 5408 states have internal predecessors, (14194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:19,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5409 states to 5409 states and 14194 transitions. [2021-03-10 17:51:19,513 INFO L78 Accepts]: Start accepts. Automaton has 5409 states and 14194 transitions. Word has length 108 [2021-03-10 17:51:19,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:19,513 INFO L480 AbstractCegarLoop]: Abstraction has 5409 states and 14194 transitions. [2021-03-10 17:51:19,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:19,513 INFO L276 IsEmpty]: Start isEmpty. Operand 5409 states and 14194 transitions. [2021-03-10 17:51:19,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:51:19,517 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:19,517 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:19,517 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-03-10 17:51:19,517 INFO L428 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]=== [2021-03-10 17:51:19,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:19,517 INFO L82 PathProgramCache]: Analyzing trace with hash -1005844151, now seen corresponding path program 51 times [2021-03-10 17:51:19,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:19,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014531279] [2021-03-10 17:51:19,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:19,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:19,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:19,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014531279] [2021-03-10 17:51:19,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:19,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:51:19,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800251703] [2021-03-10 17:51:19,966 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:51:19,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:19,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:51:19,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:51:19,967 INFO L87 Difference]: Start difference. First operand 5409 states and 14194 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:20,650 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-03-10 17:51:20,808 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2021-03-10 17:51:20,977 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2021-03-10 17:51:21,190 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2021-03-10 17:51:21,401 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 67 [2021-03-10 17:51:21,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:21,553 INFO L93 Difference]: Finished difference Result 16863 states and 43438 transitions. [2021-03-10 17:51:21,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:51:21,553 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:51:21,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:21,569 INFO L225 Difference]: With dead ends: 16863 [2021-03-10 17:51:21,569 INFO L226 Difference]: Without dead ends: 16863 [2021-03-10 17:51:21,569 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1539.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:51:21,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16863 states. [2021-03-10 17:51:21,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16863 to 5527. [2021-03-10 17:51:21,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5527 states, 5525 states have (on average 2.6304072398190046) internal successors, (14533), 5526 states have internal predecessors, (14533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:21,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5527 states to 5527 states and 14533 transitions. [2021-03-10 17:51:21,675 INFO L78 Accepts]: Start accepts. Automaton has 5527 states and 14533 transitions. Word has length 108 [2021-03-10 17:51:21,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:21,675 INFO L480 AbstractCegarLoop]: Abstraction has 5527 states and 14533 transitions. [2021-03-10 17:51:21,675 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:21,675 INFO L276 IsEmpty]: Start isEmpty. Operand 5527 states and 14533 transitions. [2021-03-10 17:51:21,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:51:21,679 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:21,679 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:21,679 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-03-10 17:51:21,679 INFO L428 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]=== [2021-03-10 17:51:21,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:21,679 INFO L82 PathProgramCache]: Analyzing trace with hash -2110723097, now seen corresponding path program 52 times [2021-03-10 17:51:21,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:21,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947515701] [2021-03-10 17:51:21,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:21,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:22,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:22,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947515701] [2021-03-10 17:51:22,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:22,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:51:22,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780769602] [2021-03-10 17:51:22,034 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:51:22,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:22,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:51:22,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:51:22,035 INFO L87 Difference]: Start difference. First operand 5527 states and 14533 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:22,832 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:51:23,020 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:51:23,207 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:51:23,404 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:51:23,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:23,570 INFO L93 Difference]: Finished difference Result 19680 states and 50457 transitions. [2021-03-10 17:51:23,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:51:23,570 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:51:23,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:23,587 INFO L225 Difference]: With dead ends: 19680 [2021-03-10 17:51:23,587 INFO L226 Difference]: Without dead ends: 19680 [2021-03-10 17:51:23,587 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1362.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:51:23,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19680 states. [2021-03-10 17:51:23,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19680 to 5542. [2021-03-10 17:51:23,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5542 states, 5540 states have (on average 2.6310469314079423) internal successors, (14576), 5541 states have internal predecessors, (14576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:23,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5542 states to 5542 states and 14576 transitions. [2021-03-10 17:51:23,708 INFO L78 Accepts]: Start accepts. Automaton has 5542 states and 14576 transitions. Word has length 108 [2021-03-10 17:51:23,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:23,708 INFO L480 AbstractCegarLoop]: Abstraction has 5542 states and 14576 transitions. [2021-03-10 17:51:23,709 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:23,709 INFO L276 IsEmpty]: Start isEmpty. Operand 5542 states and 14576 transitions. [2021-03-10 17:51:23,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:51:23,712 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:23,712 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:23,712 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-03-10 17:51:23,713 INFO L428 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]=== [2021-03-10 17:51:23,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:23,713 INFO L82 PathProgramCache]: Analyzing trace with hash 655086381, now seen corresponding path program 53 times [2021-03-10 17:51:23,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:23,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367762091] [2021-03-10 17:51:23,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:23,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:24,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:24,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367762091] [2021-03-10 17:51:24,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:24,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:51:24,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808415564] [2021-03-10 17:51:24,087 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:51:24,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:24,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:51:24,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:51:24,087 INFO L87 Difference]: Start difference. First operand 5542 states and 14576 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:24,769 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-03-10 17:51:24,925 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2021-03-10 17:51:25,133 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2021-03-10 17:51:25,329 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2021-03-10 17:51:25,543 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 67 [2021-03-10 17:51:25,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:25,692 INFO L93 Difference]: Finished difference Result 17909 states and 45758 transitions. [2021-03-10 17:51:25,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:51:25,693 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:51:25,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:25,708 INFO L225 Difference]: With dead ends: 17909 [2021-03-10 17:51:25,708 INFO L226 Difference]: Without dead ends: 17909 [2021-03-10 17:51:25,709 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1463.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:51:25,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17909 states. [2021-03-10 17:51:25,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17909 to 5497. [2021-03-10 17:51:25,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5497 states, 5495 states have (on average 2.6291173794358507) internal successors, (14447), 5496 states have internal predecessors, (14447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:25,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5497 states to 5497 states and 14447 transitions. [2021-03-10 17:51:25,847 INFO L78 Accepts]: Start accepts. Automaton has 5497 states and 14447 transitions. Word has length 108 [2021-03-10 17:51:25,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:25,847 INFO L480 AbstractCegarLoop]: Abstraction has 5497 states and 14447 transitions. [2021-03-10 17:51:25,847 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:25,847 INFO L276 IsEmpty]: Start isEmpty. Operand 5497 states and 14447 transitions. [2021-03-10 17:51:25,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:51:25,851 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:25,851 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:25,851 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-03-10 17:51:25,851 INFO L428 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]=== [2021-03-10 17:51:25,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:25,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1891482123, now seen corresponding path program 54 times [2021-03-10 17:51:25,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:25,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590527622] [2021-03-10 17:51:25,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:25,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:26,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:26,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590527622] [2021-03-10 17:51:26,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:26,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:51:26,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290115241] [2021-03-10 17:51:26,210 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:51:26,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:26,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:51:26,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:51:26,211 INFO L87 Difference]: Start difference. First operand 5497 states and 14447 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:27,000 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:51:27,159 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:51:27,332 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:51:27,539 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:51:27,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:27,667 INFO L93 Difference]: Finished difference Result 14430 states and 37131 transitions. [2021-03-10 17:51:27,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:51:27,668 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:51:27,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:27,680 INFO L225 Difference]: With dead ends: 14430 [2021-03-10 17:51:27,680 INFO L226 Difference]: Without dead ends: 14430 [2021-03-10 17:51:27,681 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1371.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:51:27,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14430 states. [2021-03-10 17:51:27,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14430 to 5527. [2021-03-10 17:51:27,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5527 states, 5525 states have (on average 2.6304072398190046) internal successors, (14533), 5526 states have internal predecessors, (14533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:27,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5527 states to 5527 states and 14533 transitions. [2021-03-10 17:51:27,771 INFO L78 Accepts]: Start accepts. Automaton has 5527 states and 14533 transitions. Word has length 108 [2021-03-10 17:51:27,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:27,771 INFO L480 AbstractCegarLoop]: Abstraction has 5527 states and 14533 transitions. [2021-03-10 17:51:27,771 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:27,771 INFO L276 IsEmpty]: Start isEmpty. Operand 5527 states and 14533 transitions. [2021-03-10 17:51:27,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:51:27,774 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:27,775 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:27,775 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-03-10 17:51:27,775 INFO L428 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]=== [2021-03-10 17:51:27,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:27,775 INFO L82 PathProgramCache]: Analyzing trace with hash -465512377, now seen corresponding path program 55 times [2021-03-10 17:51:27,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:27,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018396914] [2021-03-10 17:51:27,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:27,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:28,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:28,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018396914] [2021-03-10 17:51:28,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:28,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:51:28,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945051815] [2021-03-10 17:51:28,168 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:51:28,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:28,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:51:28,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:51:28,168 INFO L87 Difference]: Start difference. First operand 5527 states and 14533 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:28,954 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:51:29,129 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:51:29,316 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:51:29,505 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:51:29,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:29,633 INFO L93 Difference]: Finished difference Result 15346 states and 39108 transitions. [2021-03-10 17:51:29,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:51:29,633 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:51:29,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:29,646 INFO L225 Difference]: With dead ends: 15346 [2021-03-10 17:51:29,646 INFO L226 Difference]: Without dead ends: 15346 [2021-03-10 17:51:29,647 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1421.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:51:29,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15346 states. [2021-03-10 17:51:29,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15346 to 5512. [2021-03-10 17:51:29,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5512 states, 5510 states have (on average 2.629764065335753) internal successors, (14490), 5511 states have internal predecessors, (14490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:29,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5512 states to 5512 states and 14490 transitions. [2021-03-10 17:51:29,741 INFO L78 Accepts]: Start accepts. Automaton has 5512 states and 14490 transitions. Word has length 108 [2021-03-10 17:51:29,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:29,741 INFO L480 AbstractCegarLoop]: Abstraction has 5512 states and 14490 transitions. [2021-03-10 17:51:29,741 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:29,741 INFO L276 IsEmpty]: Start isEmpty. Operand 5512 states and 14490 transitions. [2021-03-10 17:51:29,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:51:29,745 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:29,745 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:29,745 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-03-10 17:51:29,745 INFO L428 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]=== [2021-03-10 17:51:29,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:29,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1678158813, now seen corresponding path program 56 times [2021-03-10 17:51:29,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:29,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98470313] [2021-03-10 17:51:29,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:29,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:30,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:30,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98470313] [2021-03-10 17:51:30,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:30,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:51:30,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461055037] [2021-03-10 17:51:30,107 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:51:30,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:30,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:51:30,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:51:30,107 INFO L87 Difference]: Start difference. First operand 5512 states and 14490 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:30,913 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:51:31,073 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:51:31,260 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:51:31,451 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:51:31,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:31,591 INFO L93 Difference]: Finished difference Result 18443 states and 46857 transitions. [2021-03-10 17:51:31,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:51:31,592 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:51:31,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:31,608 INFO L225 Difference]: With dead ends: 18443 [2021-03-10 17:51:31,608 INFO L226 Difference]: Without dead ends: 18443 [2021-03-10 17:51:31,608 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1375.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:51:31,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18443 states. [2021-03-10 17:51:31,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18443 to 5527. [2021-03-10 17:51:31,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5527 states, 5525 states have (on average 2.6304072398190046) internal successors, (14533), 5526 states have internal predecessors, (14533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:31,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5527 states to 5527 states and 14533 transitions. [2021-03-10 17:51:31,720 INFO L78 Accepts]: Start accepts. Automaton has 5527 states and 14533 transitions. Word has length 108 [2021-03-10 17:51:31,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:31,720 INFO L480 AbstractCegarLoop]: Abstraction has 5527 states and 14533 transitions. [2021-03-10 17:51:31,720 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:31,720 INFO L276 IsEmpty]: Start isEmpty. Operand 5527 states and 14533 transitions. [2021-03-10 17:51:31,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:51:31,724 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:31,724 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:31,724 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-03-10 17:51:31,724 INFO L428 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]=== [2021-03-10 17:51:31,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:31,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1087650665, now seen corresponding path program 57 times [2021-03-10 17:51:31,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:31,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506779084] [2021-03-10 17:51:31,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:31,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:32,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:32,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506779084] [2021-03-10 17:51:32,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:32,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:51:32,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236288999] [2021-03-10 17:51:32,085 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:51:32,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:32,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:51:32,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:51:32,086 INFO L87 Difference]: Start difference. First operand 5527 states and 14533 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:32,773 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-03-10 17:51:32,943 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2021-03-10 17:51:33,117 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 55 [2021-03-10 17:51:33,305 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 60 [2021-03-10 17:51:33,509 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 67 [2021-03-10 17:51:33,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:33,633 INFO L93 Difference]: Finished difference Result 15478 states and 39491 transitions. [2021-03-10 17:51:33,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:51:33,634 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:51:33,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:33,647 INFO L225 Difference]: With dead ends: 15478 [2021-03-10 17:51:33,648 INFO L226 Difference]: Without dead ends: 15478 [2021-03-10 17:51:33,648 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1451.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:51:33,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15478 states. [2021-03-10 17:51:33,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15478 to 5467. [2021-03-10 17:51:33,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5467 states, 5465 states have (on average 2.6278133577310157) internal successors, (14361), 5466 states have internal predecessors, (14361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:33,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5467 states to 5467 states and 14361 transitions. [2021-03-10 17:51:33,751 INFO L78 Accepts]: Start accepts. Automaton has 5467 states and 14361 transitions. Word has length 108 [2021-03-10 17:51:33,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:33,751 INFO L480 AbstractCegarLoop]: Abstraction has 5467 states and 14361 transitions. [2021-03-10 17:51:33,751 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:33,751 INFO L276 IsEmpty]: Start isEmpty. Operand 5467 states and 14361 transitions. [2021-03-10 17:51:33,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:51:33,755 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:33,755 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:33,756 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-03-10 17:51:33,756 INFO L428 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]=== [2021-03-10 17:51:33,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:33,756 INFO L82 PathProgramCache]: Analyzing trace with hash 872741643, now seen corresponding path program 58 times [2021-03-10 17:51:33,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:33,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352663046] [2021-03-10 17:51:33,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:33,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:34,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:34,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352663046] [2021-03-10 17:51:34,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:34,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:51:34,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030988456] [2021-03-10 17:51:34,167 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:51:34,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:34,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:51:34,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:51:34,168 INFO L87 Difference]: Start difference. First operand 5467 states and 14361 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:34,877 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48 [2021-03-10 17:51:35,036 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2021-03-10 17:51:35,213 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2021-03-10 17:51:35,435 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2021-03-10 17:51:35,676 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 69 [2021-03-10 17:51:35,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:35,831 INFO L93 Difference]: Finished difference Result 15571 states and 40367 transitions. [2021-03-10 17:51:35,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:51:35,832 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:51:35,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:35,846 INFO L225 Difference]: With dead ends: 15571 [2021-03-10 17:51:35,846 INFO L226 Difference]: Without dead ends: 15571 [2021-03-10 17:51:35,846 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1528.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:51:35,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15571 states. [2021-03-10 17:51:35,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15571 to 5512. [2021-03-10 17:51:35,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5512 states, 5510 states have (on average 2.629764065335753) internal successors, (14490), 5511 states have internal predecessors, (14490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:35,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5512 states to 5512 states and 14490 transitions. [2021-03-10 17:51:35,945 INFO L78 Accepts]: Start accepts. Automaton has 5512 states and 14490 transitions. Word has length 108 [2021-03-10 17:51:35,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:35,945 INFO L480 AbstractCegarLoop]: Abstraction has 5512 states and 14490 transitions. [2021-03-10 17:51:35,945 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:35,945 INFO L276 IsEmpty]: Start isEmpty. Operand 5512 states and 14490 transitions. [2021-03-10 17:51:35,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:51:35,949 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:35,949 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:35,950 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-03-10 17:51:35,950 INFO L428 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]=== [2021-03-10 17:51:35,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:35,950 INFO L82 PathProgramCache]: Analyzing trace with hash -232137303, now seen corresponding path program 59 times [2021-03-10 17:51:35,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:35,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525972513] [2021-03-10 17:51:35,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:35,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:36,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:36,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525972513] [2021-03-10 17:51:36,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:36,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:51:36,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634456366] [2021-03-10 17:51:36,344 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:51:36,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:36,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:51:36,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:51:36,347 INFO L87 Difference]: Start difference. First operand 5512 states and 14490 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:37,145 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:51:37,337 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:51:37,526 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:51:37,722 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:51:37,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:37,876 INFO L93 Difference]: Finished difference Result 15051 states and 38609 transitions. [2021-03-10 17:51:37,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:51:37,876 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:51:37,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:37,890 INFO L225 Difference]: With dead ends: 15051 [2021-03-10 17:51:37,890 INFO L226 Difference]: Without dead ends: 15051 [2021-03-10 17:51:37,890 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1401.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:51:37,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15051 states. [2021-03-10 17:51:37,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15051 to 5527. [2021-03-10 17:51:37,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5527 states, 5525 states have (on average 2.6304072398190046) internal successors, (14533), 5526 states have internal predecessors, (14533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:37,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5527 states to 5527 states and 14533 transitions. [2021-03-10 17:51:37,981 INFO L78 Accepts]: Start accepts. Automaton has 5527 states and 14533 transitions. Word has length 108 [2021-03-10 17:51:37,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:37,982 INFO L480 AbstractCegarLoop]: Abstraction has 5527 states and 14533 transitions. [2021-03-10 17:51:37,982 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:37,982 INFO L276 IsEmpty]: Start isEmpty. Operand 5527 states and 14533 transitions. [2021-03-10 17:51:37,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:51:37,986 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:37,986 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:37,986 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-03-10 17:51:37,986 INFO L428 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]=== [2021-03-10 17:51:37,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:37,986 INFO L82 PathProgramCache]: Analyzing trace with hash -1761295121, now seen corresponding path program 60 times [2021-03-10 17:51:37,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:37,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950649023] [2021-03-10 17:51:37,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:38,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:38,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:38,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950649023] [2021-03-10 17:51:38,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:38,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:51:38,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823162781] [2021-03-10 17:51:38,361 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:51:38,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:38,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:51:38,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:51:38,361 INFO L87 Difference]: Start difference. First operand 5527 states and 14533 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:39,068 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48 [2021-03-10 17:51:39,222 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2021-03-10 17:51:39,430 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2021-03-10 17:51:39,628 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2021-03-10 17:51:39,849 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 69 [2021-03-10 17:51:39,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:39,980 INFO L93 Difference]: Finished difference Result 14937 states and 38313 transitions. [2021-03-10 17:51:39,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:51:39,981 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:51:39,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:39,994 INFO L225 Difference]: With dead ends: 14937 [2021-03-10 17:51:39,994 INFO L226 Difference]: Without dead ends: 14937 [2021-03-10 17:51:39,994 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1534.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:51:40,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14937 states. [2021-03-10 17:51:40,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14937 to 5482. [2021-03-10 17:51:40,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5482 states, 5480 states have (on average 2.6284671532846717) internal successors, (14404), 5481 states have internal predecessors, (14404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:40,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5482 states to 5482 states and 14404 transitions. [2021-03-10 17:51:40,086 INFO L78 Accepts]: Start accepts. Automaton has 5482 states and 14404 transitions. Word has length 108 [2021-03-10 17:51:40,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:40,086 INFO L480 AbstractCegarLoop]: Abstraction has 5482 states and 14404 transitions. [2021-03-10 17:51:40,086 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:40,087 INFO L276 IsEmpty]: Start isEmpty. Operand 5482 states and 14404 transitions. [2021-03-10 17:51:40,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:51:40,090 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:40,090 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:40,090 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-03-10 17:51:40,090 INFO L428 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]=== [2021-03-10 17:51:40,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:40,091 INFO L82 PathProgramCache]: Analyzing trace with hash 508230057, now seen corresponding path program 61 times [2021-03-10 17:51:40,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:40,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149256411] [2021-03-10 17:51:40,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:40,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:40,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:40,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149256411] [2021-03-10 17:51:40,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:40,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:51:40,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048555551] [2021-03-10 17:51:40,477 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:51:40,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:40,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:51:40,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:51:40,478 INFO L87 Difference]: Start difference. First operand 5482 states and 14404 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:41,164 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48 [2021-03-10 17:51:41,314 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2021-03-10 17:51:41,485 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2021-03-10 17:51:41,709 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2021-03-10 17:51:41,932 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 69 [2021-03-10 17:51:42,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:42,066 INFO L93 Difference]: Finished difference Result 11938 states and 30780 transitions. [2021-03-10 17:51:42,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:51:42,066 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:51:42,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:42,076 INFO L225 Difference]: With dead ends: 11938 [2021-03-10 17:51:42,076 INFO L226 Difference]: Without dead ends: 11938 [2021-03-10 17:51:42,076 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1492.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:51:42,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11938 states. [2021-03-10 17:51:42,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11938 to 5452. [2021-03-10 17:51:42,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5452 states, 5450 states have (on average 2.6271559633027524) internal successors, (14318), 5451 states have internal predecessors, (14318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:42,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5452 states to 5452 states and 14318 transitions. [2021-03-10 17:51:42,175 INFO L78 Accepts]: Start accepts. Automaton has 5452 states and 14318 transitions. Word has length 108 [2021-03-10 17:51:42,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:42,175 INFO L480 AbstractCegarLoop]: Abstraction has 5452 states and 14318 transitions. [2021-03-10 17:51:42,176 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:42,176 INFO L276 IsEmpty]: Start isEmpty. Operand 5452 states and 14318 transitions. [2021-03-10 17:51:42,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:51:42,179 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:42,179 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:42,179 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-03-10 17:51:42,179 INFO L428 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]=== [2021-03-10 17:51:42,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:42,180 INFO L82 PathProgramCache]: Analyzing trace with hash 523517801, now seen corresponding path program 62 times [2021-03-10 17:51:42,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:42,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950250559] [2021-03-10 17:51:42,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:42,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:42,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:42,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950250559] [2021-03-10 17:51:42,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:42,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:51:42,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628174743] [2021-03-10 17:51:42,579 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:51:42,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:42,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:51:42,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:51:42,580 INFO L87 Difference]: Start difference. First operand 5452 states and 14318 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:43,335 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-03-10 17:51:43,495 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2021-03-10 17:51:43,665 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2021-03-10 17:51:43,879 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 63 [2021-03-10 17:51:44,092 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 67 [2021-03-10 17:51:44,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:44,245 INFO L93 Difference]: Finished difference Result 16381 states and 41949 transitions. [2021-03-10 17:51:44,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:51:44,246 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:51:44,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:44,259 INFO L225 Difference]: With dead ends: 16381 [2021-03-10 17:51:44,260 INFO L226 Difference]: Without dead ends: 16381 [2021-03-10 17:51:44,260 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1545.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:51:44,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16381 states. [2021-03-10 17:51:44,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16381 to 5572. [2021-03-10 17:51:44,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5572 states, 5570 states have (on average 2.632315978456014) internal successors, (14662), 5571 states have internal predecessors, (14662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:44,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5572 states to 5572 states and 14662 transitions. [2021-03-10 17:51:44,357 INFO L78 Accepts]: Start accepts. Automaton has 5572 states and 14662 transitions. Word has length 108 [2021-03-10 17:51:44,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:44,358 INFO L480 AbstractCegarLoop]: Abstraction has 5572 states and 14662 transitions. [2021-03-10 17:51:44,358 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:44,358 INFO L276 IsEmpty]: Start isEmpty. Operand 5572 states and 14662 transitions. [2021-03-10 17:51:44,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:51:44,361 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:44,361 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:44,362 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-03-10 17:51:44,362 INFO L428 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]=== [2021-03-10 17:51:44,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:44,362 INFO L82 PathProgramCache]: Analyzing trace with hash -581361145, now seen corresponding path program 63 times [2021-03-10 17:51:44,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:44,362 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14407752] [2021-03-10 17:51:44,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:44,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:44,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:44,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14407752] [2021-03-10 17:51:44,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:44,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:51:44,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405862509] [2021-03-10 17:51:44,733 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:51:44,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:44,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:51:44,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:51:44,733 INFO L87 Difference]: Start difference. First operand 5572 states and 14662 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:45,405 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:51:45,548 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:51:45,731 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:51:45,919 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:51:46,118 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:51:46,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:46,271 INFO L93 Difference]: Finished difference Result 19198 states and 48968 transitions. [2021-03-10 17:51:46,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:51:46,271 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:51:46,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:46,288 INFO L225 Difference]: With dead ends: 19198 [2021-03-10 17:51:46,288 INFO L226 Difference]: Without dead ends: 19198 [2021-03-10 17:51:46,288 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1431.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:51:46,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19198 states. [2021-03-10 17:51:46,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19198 to 5587. [2021-03-10 17:51:46,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5587 states, 5585 states have (on average 2.632945389435989) internal successors, (14705), 5586 states have internal predecessors, (14705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:46,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5587 states to 5587 states and 14705 transitions. [2021-03-10 17:51:46,401 INFO L78 Accepts]: Start accepts. Automaton has 5587 states and 14705 transitions. Word has length 108 [2021-03-10 17:51:46,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:46,401 INFO L480 AbstractCegarLoop]: Abstraction has 5587 states and 14705 transitions. [2021-03-10 17:51:46,401 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:46,401 INFO L276 IsEmpty]: Start isEmpty. Operand 5587 states and 14705 transitions. [2021-03-10 17:51:46,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:51:46,405 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:46,405 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:46,405 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-03-10 17:51:46,405 INFO L428 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]=== [2021-03-10 17:51:46,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:46,405 INFO L82 PathProgramCache]: Analyzing trace with hash -2110518963, now seen corresponding path program 64 times [2021-03-10 17:51:46,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:46,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61581793] [2021-03-10 17:51:46,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:46,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:46,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:46,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61581793] [2021-03-10 17:51:46,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:46,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:51:46,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335717465] [2021-03-10 17:51:46,803 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:51:46,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:46,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:51:46,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:51:46,803 INFO L87 Difference]: Start difference. First operand 5587 states and 14705 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:47,514 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-03-10 17:51:47,677 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2021-03-10 17:51:47,885 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2021-03-10 17:51:48,084 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 63 [2021-03-10 17:51:48,302 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 67 [2021-03-10 17:51:48,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:48,452 INFO L93 Difference]: Finished difference Result 17427 states and 44269 transitions. [2021-03-10 17:51:48,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:51:48,452 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:51:48,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:48,467 INFO L225 Difference]: With dead ends: 17427 [2021-03-10 17:51:48,467 INFO L226 Difference]: Without dead ends: 17427 [2021-03-10 17:51:48,467 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1494.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:51:48,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17427 states. [2021-03-10 17:51:48,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17427 to 5542. [2021-03-10 17:51:48,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5542 states, 5540 states have (on average 2.6310469314079423) internal successors, (14576), 5541 states have internal predecessors, (14576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:48,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5542 states to 5542 states and 14576 transitions. [2021-03-10 17:51:48,602 INFO L78 Accepts]: Start accepts. Automaton has 5542 states and 14576 transitions. Word has length 108 [2021-03-10 17:51:48,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:48,602 INFO L480 AbstractCegarLoop]: Abstraction has 5542 states and 14576 transitions. [2021-03-10 17:51:48,602 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:48,602 INFO L276 IsEmpty]: Start isEmpty. Operand 5542 states and 14576 transitions. [2021-03-10 17:51:48,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:51:48,605 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:48,606 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:48,606 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-03-10 17:51:48,606 INFO L428 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]=== [2021-03-10 17:51:48,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:48,606 INFO L82 PathProgramCache]: Analyzing trace with hash -874123221, now seen corresponding path program 65 times [2021-03-10 17:51:48,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:48,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675400035] [2021-03-10 17:51:48,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:48,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:48,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:48,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675400035] [2021-03-10 17:51:48,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:48,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:51:48,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227562377] [2021-03-10 17:51:48,943 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:51:48,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:48,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:51:48,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:51:48,943 INFO L87 Difference]: Start difference. First operand 5542 states and 14576 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:49,774 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:51:49,938 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:51:50,121 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:51:50,328 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:51:50,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:50,488 INFO L93 Difference]: Finished difference Result 19161 states and 48974 transitions. [2021-03-10 17:51:50,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:51:50,488 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:51:50,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:50,505 INFO L225 Difference]: With dead ends: 19161 [2021-03-10 17:51:50,505 INFO L226 Difference]: Without dead ends: 19161 [2021-03-10 17:51:50,505 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1373.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:51:50,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19161 states. [2021-03-10 17:51:50,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19161 to 5572. [2021-03-10 17:51:50,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5572 states, 5570 states have (on average 2.632315978456014) internal successors, (14662), 5571 states have internal predecessors, (14662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:50,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5572 states to 5572 states and 14662 transitions. [2021-03-10 17:51:50,621 INFO L78 Accepts]: Start accepts. Automaton has 5572 states and 14662 transitions. Word has length 108 [2021-03-10 17:51:50,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:50,621 INFO L480 AbstractCegarLoop]: Abstraction has 5572 states and 14662 transitions. [2021-03-10 17:51:50,621 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:50,621 INFO L276 IsEmpty]: Start isEmpty. Operand 5572 states and 14662 transitions. [2021-03-10 17:51:50,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:51:50,625 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:50,625 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:50,625 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-03-10 17:51:50,625 INFO L428 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]=== [2021-03-10 17:51:50,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:50,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1063849575, now seen corresponding path program 66 times [2021-03-10 17:51:50,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:50,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779594029] [2021-03-10 17:51:50,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:50,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:50,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:50,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779594029] [2021-03-10 17:51:50,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:50,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:51:50,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981261168] [2021-03-10 17:51:50,972 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:51:50,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:50,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:51:50,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:51:50,972 INFO L87 Difference]: Start difference. First operand 5572 states and 14662 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:51,645 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:51:51,849 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:51:52,013 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:51:52,212 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:51:52,410 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:51:52,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:52,575 INFO L93 Difference]: Finished difference Result 20077 states and 50951 transitions. [2021-03-10 17:51:52,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:51:52,576 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:51:52,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:52,593 INFO L225 Difference]: With dead ends: 20077 [2021-03-10 17:51:52,593 INFO L226 Difference]: Without dead ends: 20077 [2021-03-10 17:51:52,594 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1423.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:51:52,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20077 states. [2021-03-10 17:51:52,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20077 to 5557. [2021-03-10 17:51:52,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5557 states, 5555 states have (on average 2.631683168316832) internal successors, (14619), 5556 states have internal predecessors, (14619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:52,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5557 states to 5557 states and 14619 transitions. [2021-03-10 17:51:52,710 INFO L78 Accepts]: Start accepts. Automaton has 5557 states and 14619 transitions. Word has length 108 [2021-03-10 17:51:52,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:52,710 INFO L480 AbstractCegarLoop]: Abstraction has 5557 states and 14619 transitions. [2021-03-10 17:51:52,710 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:52,710 INFO L276 IsEmpty]: Start isEmpty. Operand 5557 states and 14619 transitions. [2021-03-10 17:51:52,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:51:52,714 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:52,714 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:52,714 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-03-10 17:51:52,714 INFO L428 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]=== [2021-03-10 17:51:52,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:52,714 INFO L82 PathProgramCache]: Analyzing trace with hash -148796861, now seen corresponding path program 67 times [2021-03-10 17:51:52,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:52,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649509689] [2021-03-10 17:51:52,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:52,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:53,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:53,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649509689] [2021-03-10 17:51:53,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:53,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:51:53,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962848261] [2021-03-10 17:51:53,054 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:51:53,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:53,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:51:53,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:51:53,055 INFO L87 Difference]: Start difference. First operand 5557 states and 14619 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:53,893 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:51:54,060 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:51:54,255 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:51:54,455 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:51:54,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:54,633 INFO L93 Difference]: Finished difference Result 21755 states and 54813 transitions. [2021-03-10 17:51:54,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:51:54,634 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:51:54,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:54,652 INFO L225 Difference]: With dead ends: 21755 [2021-03-10 17:51:54,653 INFO L226 Difference]: Without dead ends: 21755 [2021-03-10 17:51:54,653 INFO L775 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 [2021-03-10 17:51:54,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21755 states. [2021-03-10 17:51:54,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21755 to 5572. [2021-03-10 17:51:54,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5572 states, 5570 states have (on average 2.632315978456014) internal successors, (14662), 5571 states have internal predecessors, (14662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:54,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5572 states to 5572 states and 14662 transitions. [2021-03-10 17:51:54,777 INFO L78 Accepts]: Start accepts. Automaton has 5572 states and 14662 transitions. Word has length 108 [2021-03-10 17:51:54,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:54,777 INFO L480 AbstractCegarLoop]: Abstraction has 5572 states and 14662 transitions. [2021-03-10 17:51:54,778 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:54,778 INFO L276 IsEmpty]: Start isEmpty. Operand 5572 states and 14662 transitions. [2021-03-10 17:51:54,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:51:54,781 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:54,781 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:54,781 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-03-10 17:51:54,781 INFO L428 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]=== [2021-03-10 17:51:54,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:54,782 INFO L82 PathProgramCache]: Analyzing trace with hash -1677954679, now seen corresponding path program 68 times [2021-03-10 17:51:54,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:54,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779013840] [2021-03-10 17:51:54,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:54,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:55,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:55,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779013840] [2021-03-10 17:51:55,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:55,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:51:55,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514573080] [2021-03-10 17:51:55,192 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:51:55,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:55,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:51:55,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:51:55,193 INFO L87 Difference]: Start difference. First operand 5572 states and 14662 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:55,900 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-03-10 17:51:56,087 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2021-03-10 17:51:56,261 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 53 [2021-03-10 17:51:56,453 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 58 [2021-03-10 17:51:56,659 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 65 [2021-03-10 17:51:56,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:56,810 INFO L93 Difference]: Finished difference Result 18790 states and 47447 transitions. [2021-03-10 17:51:56,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:51:56,811 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:51:56,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:56,826 INFO L225 Difference]: With dead ends: 18790 [2021-03-10 17:51:56,827 INFO L226 Difference]: Without dead ends: 18790 [2021-03-10 17:51:56,827 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1445.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:51:56,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18790 states. [2021-03-10 17:51:56,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18790 to 5512. [2021-03-10 17:51:56,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5512 states, 5510 states have (on average 2.629764065335753) internal successors, (14490), 5511 states have internal predecessors, (14490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:56,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5512 states to 5512 states and 14490 transitions. [2021-03-10 17:51:56,934 INFO L78 Accepts]: Start accepts. Automaton has 5512 states and 14490 transitions. Word has length 108 [2021-03-10 17:51:56,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:56,934 INFO L480 AbstractCegarLoop]: Abstraction has 5512 states and 14490 transitions. [2021-03-10 17:51:56,934 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:56,935 INFO L276 IsEmpty]: Start isEmpty. Operand 5512 states and 14490 transitions. [2021-03-10 17:51:56,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:51:56,938 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:56,938 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:56,938 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-03-10 17:51:56,938 INFO L428 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]=== [2021-03-10 17:51:56,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:56,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1957054535, now seen corresponding path program 69 times [2021-03-10 17:51:56,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:56,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165400998] [2021-03-10 17:51:56,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:56,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:57,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:57,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165400998] [2021-03-10 17:51:57,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:57,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:51:57,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682654690] [2021-03-10 17:51:57,297 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:51:57,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:57,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:51:57,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:51:57,297 INFO L87 Difference]: Start difference. First operand 5512 states and 14490 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:57,956 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:51:58,102 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:51:58,286 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:51:58,484 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:51:58,691 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:51:58,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:58,836 INFO L93 Difference]: Finished difference Result 14888 states and 38361 transitions. [2021-03-10 17:51:58,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:51:58,836 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:51:58,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:58,849 INFO L225 Difference]: With dead ends: 14888 [2021-03-10 17:51:58,849 INFO L226 Difference]: Without dead ends: 14888 [2021-03-10 17:51:58,849 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1425.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:51:58,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14888 states. [2021-03-10 17:51:58,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14888 to 5572. [2021-03-10 17:51:58,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5572 states, 5570 states have (on average 2.632315978456014) internal successors, (14662), 5571 states have internal predecessors, (14662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:58,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5572 states to 5572 states and 14662 transitions. [2021-03-10 17:51:58,957 INFO L78 Accepts]: Start accepts. Automaton has 5572 states and 14662 transitions. Word has length 108 [2021-03-10 17:51:58,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:58,957 INFO L480 AbstractCegarLoop]: Abstraction has 5572 states and 14662 transitions. [2021-03-10 17:51:58,957 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:58,958 INFO L276 IsEmpty]: Start isEmpty. Operand 5572 states and 14662 transitions. [2021-03-10 17:51:58,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:51:58,962 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:58,962 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:58,963 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-03-10 17:51:58,963 INFO L428 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]=== [2021-03-10 17:51:58,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:58,963 INFO L82 PathProgramCache]: Analyzing trace with hash -608773621, now seen corresponding path program 70 times [2021-03-10 17:51:58,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:58,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928123130] [2021-03-10 17:51:58,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:58,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:59,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:59,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928123130] [2021-03-10 17:51:59,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:59,319 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:51:59,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113885514] [2021-03-10 17:51:59,319 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:51:59,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:59,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:51:59,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:51:59,320 INFO L87 Difference]: Start difference. First operand 5572 states and 14662 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:59,976 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:52:00,121 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:52:00,309 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:52:00,490 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:52:00,697 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:52:00,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:00,848 INFO L93 Difference]: Finished difference Result 17477 states and 44892 transitions. [2021-03-10 17:52:00,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:52:00,849 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:52:00,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:00,864 INFO L225 Difference]: With dead ends: 17477 [2021-03-10 17:52:00,864 INFO L226 Difference]: Without dead ends: 17477 [2021-03-10 17:52:00,864 INFO L775 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 [2021-03-10 17:52:00,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17477 states. [2021-03-10 17:52:00,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17477 to 5587. [2021-03-10 17:52:00,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5587 states, 5585 states have (on average 2.632945389435989) internal successors, (14705), 5586 states have internal predecessors, (14705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:00,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5587 states to 5587 states and 14705 transitions. [2021-03-10 17:52:00,973 INFO L78 Accepts]: Start accepts. Automaton has 5587 states and 14705 transitions. Word has length 108 [2021-03-10 17:52:00,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:00,973 INFO L480 AbstractCegarLoop]: Abstraction has 5587 states and 14705 transitions. [2021-03-10 17:52:00,973 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:00,973 INFO L276 IsEmpty]: Start isEmpty. Operand 5587 states and 14705 transitions. [2021-03-10 17:52:00,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:52:00,977 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:00,977 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:00,977 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-03-10 17:52:00,977 INFO L428 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]=== [2021-03-10 17:52:00,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:00,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1329199175, now seen corresponding path program 71 times [2021-03-10 17:52:00,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:00,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853635541] [2021-03-10 17:52:00,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:00,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:01,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:01,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853635541] [2021-03-10 17:52:01,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:01,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:01,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371129201] [2021-03-10 17:52:01,344 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:01,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:01,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:01,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:01,345 INFO L87 Difference]: Start difference. First operand 5587 states and 14705 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:02,014 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:52:02,159 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:52:02,344 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:52:02,535 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:52:02,729 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:52:02,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:02,860 INFO L93 Difference]: Finished difference Result 15880 states and 40527 transitions. [2021-03-10 17:52:02,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:52:02,860 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:52:02,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:02,876 INFO L225 Difference]: With dead ends: 15880 [2021-03-10 17:52:02,876 INFO L226 Difference]: Without dead ends: 15880 [2021-03-10 17:52:02,876 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1417.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:52:02,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15880 states. [2021-03-10 17:52:02,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15880 to 5542. [2021-03-10 17:52:02,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5542 states, 5540 states have (on average 2.6310469314079423) internal successors, (14576), 5541 states have internal predecessors, (14576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:02,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5542 states to 5542 states and 14576 transitions. [2021-03-10 17:52:02,972 INFO L78 Accepts]: Start accepts. Automaton has 5542 states and 14576 transitions. Word has length 108 [2021-03-10 17:52:02,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:02,973 INFO L480 AbstractCegarLoop]: Abstraction has 5542 states and 14576 transitions. [2021-03-10 17:52:02,973 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:02,973 INFO L276 IsEmpty]: Start isEmpty. Operand 5542 states and 14576 transitions. [2021-03-10 17:52:02,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:52:02,976 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:02,977 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:02,977 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-03-10 17:52:02,977 INFO L428 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]=== [2021-03-10 17:52:02,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:02,977 INFO L82 PathProgramCache]: Analyzing trace with hash -849145711, now seen corresponding path program 72 times [2021-03-10 17:52:02,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:02,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814642885] [2021-03-10 17:52:02,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:02,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:03,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:03,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814642885] [2021-03-10 17:52:03,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:03,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:03,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283296081] [2021-03-10 17:52:03,330 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:03,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:03,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:03,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:03,330 INFO L87 Difference]: Start difference. First operand 5542 states and 14576 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:04,057 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:52:04,223 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:52:04,389 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:52:04,571 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:52:04,774 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:52:04,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:04,966 INFO L93 Difference]: Finished difference Result 17265 states and 43773 transitions. [2021-03-10 17:52:04,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:52:04,967 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:52:04,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:04,977 INFO L225 Difference]: With dead ends: 17265 [2021-03-10 17:52:04,978 INFO L226 Difference]: Without dead ends: 17265 [2021-03-10 17:52:04,978 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1414.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:52:05,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17265 states. [2021-03-10 17:52:05,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17265 to 5572. [2021-03-10 17:52:05,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5572 states, 5570 states have (on average 2.632315978456014) internal successors, (14662), 5571 states have internal predecessors, (14662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:05,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5572 states to 5572 states and 14662 transitions. [2021-03-10 17:52:05,068 INFO L78 Accepts]: Start accepts. Automaton has 5572 states and 14662 transitions. Word has length 108 [2021-03-10 17:52:05,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:05,068 INFO L480 AbstractCegarLoop]: Abstraction has 5572 states and 14662 transitions. [2021-03-10 17:52:05,068 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:05,068 INFO L276 IsEmpty]: Start isEmpty. Operand 5572 states and 14662 transitions. [2021-03-10 17:52:05,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:52:05,072 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:05,072 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:05,072 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-03-10 17:52:05,072 INFO L428 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]=== [2021-03-10 17:52:05,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:05,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1088827085, now seen corresponding path program 73 times [2021-03-10 17:52:05,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:05,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684384348] [2021-03-10 17:52:05,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:05,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:05,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:05,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684384348] [2021-03-10 17:52:05,456 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:05,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:05,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975754756] [2021-03-10 17:52:05,456 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:05,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:05,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:05,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:05,457 INFO L87 Difference]: Start difference. First operand 5572 states and 14662 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:06,130 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:52:06,298 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:52:06,466 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:52:06,663 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:52:06,863 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:52:07,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:07,035 INFO L93 Difference]: Finished difference Result 18181 states and 45750 transitions. [2021-03-10 17:52:07,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:52:07,036 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:52:07,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:07,051 INFO L225 Difference]: With dead ends: 18181 [2021-03-10 17:52:07,051 INFO L226 Difference]: Without dead ends: 18181 [2021-03-10 17:52:07,052 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1422.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:52:07,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18181 states. [2021-03-10 17:52:07,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18181 to 5557. [2021-03-10 17:52:07,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5557 states, 5555 states have (on average 2.631683168316832) internal successors, (14619), 5556 states have internal predecessors, (14619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:07,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5557 states to 5557 states and 14619 transitions. [2021-03-10 17:52:07,157 INFO L78 Accepts]: Start accepts. Automaton has 5557 states and 14619 transitions. Word has length 108 [2021-03-10 17:52:07,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:07,158 INFO L480 AbstractCegarLoop]: Abstraction has 5557 states and 14619 transitions. [2021-03-10 17:52:07,158 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:07,158 INFO L276 IsEmpty]: Start isEmpty. Operand 5557 states and 14619 transitions. [2021-03-10 17:52:07,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:52:07,161 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:07,161 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:07,161 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-03-10 17:52:07,162 INFO L428 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]=== [2021-03-10 17:52:07,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:07,162 INFO L82 PathProgramCache]: Analyzing trace with hash -123819351, now seen corresponding path program 74 times [2021-03-10 17:52:07,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:07,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129246163] [2021-03-10 17:52:07,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:07,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:07,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:07,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129246163] [2021-03-10 17:52:07,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:07,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:07,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243384177] [2021-03-10 17:52:07,603 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:07,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:07,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:07,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:07,603 INFO L87 Difference]: Start difference. First operand 5557 states and 14619 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:08,461 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:52:08,628 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:52:08,817 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:52:09,013 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:52:09,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:09,155 INFO L93 Difference]: Finished difference Result 17445 states and 44072 transitions. [2021-03-10 17:52:09,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:52:09,155 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:52:09,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:09,170 INFO L225 Difference]: With dead ends: 17445 [2021-03-10 17:52:09,170 INFO L226 Difference]: Without dead ends: 17445 [2021-03-10 17:52:09,171 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1493.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:52:09,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17445 states. [2021-03-10 17:52:09,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17445 to 5572. [2021-03-10 17:52:09,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5572 states, 5570 states have (on average 2.632315978456014) internal successors, (14662), 5571 states have internal predecessors, (14662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:09,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5572 states to 5572 states and 14662 transitions. [2021-03-10 17:52:09,280 INFO L78 Accepts]: Start accepts. Automaton has 5572 states and 14662 transitions. Word has length 108 [2021-03-10 17:52:09,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:09,280 INFO L480 AbstractCegarLoop]: Abstraction has 5572 states and 14662 transitions. [2021-03-10 17:52:09,280 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:09,280 INFO L276 IsEmpty]: Start isEmpty. Operand 5572 states and 14662 transitions. [2021-03-10 17:52:09,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:52:09,284 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:09,284 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:09,284 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-03-10 17:52:09,284 INFO L428 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]=== [2021-03-10 17:52:09,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:09,284 INFO L82 PathProgramCache]: Analyzing trace with hash -1652977169, now seen corresponding path program 75 times [2021-03-10 17:52:09,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:09,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108601326] [2021-03-10 17:52:09,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:09,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:09,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:09,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108601326] [2021-03-10 17:52:09,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:09,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:09,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479241861] [2021-03-10 17:52:09,629 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:09,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:09,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:09,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:09,629 INFO L87 Difference]: Start difference. First operand 5572 states and 14662 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:10,337 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2021-03-10 17:52:10,512 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 50 [2021-03-10 17:52:10,699 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2021-03-10 17:52:10,899 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 62 [2021-03-10 17:52:11,117 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 67 [2021-03-10 17:52:11,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:11,248 INFO L93 Difference]: Finished difference Result 14480 states and 36706 transitions. [2021-03-10 17:52:11,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:52:11,249 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:52:11,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:11,262 INFO L225 Difference]: With dead ends: 14480 [2021-03-10 17:52:11,262 INFO L226 Difference]: Without dead ends: 14480 [2021-03-10 17:52:11,262 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1498.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:52:11,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14480 states. [2021-03-10 17:52:11,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14480 to 5422. [2021-03-10 17:52:11,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5422 states, 5420 states have (on average 2.625830258302583) internal successors, (14232), 5421 states have internal predecessors, (14232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:11,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5422 states to 5422 states and 14232 transitions. [2021-03-10 17:52:11,362 INFO L78 Accepts]: Start accepts. Automaton has 5422 states and 14232 transitions. Word has length 108 [2021-03-10 17:52:11,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:11,362 INFO L480 AbstractCegarLoop]: Abstraction has 5422 states and 14232 transitions. [2021-03-10 17:52:11,362 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:11,362 INFO L276 IsEmpty]: Start isEmpty. Operand 5422 states and 14232 transitions. [2021-03-10 17:52:11,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:52:11,366 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:11,366 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:11,366 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-03-10 17:52:11,366 INFO L428 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]=== [2021-03-10 17:52:11,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:11,367 INFO L82 PathProgramCache]: Analyzing trace with hash -735466297, now seen corresponding path program 76 times [2021-03-10 17:52:11,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:11,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883026537] [2021-03-10 17:52:11,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:11,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:11,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:11,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883026537] [2021-03-10 17:52:11,777 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:11,777 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:11,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131495335] [2021-03-10 17:52:11,777 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:11,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:11,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:11,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:11,777 INFO L87 Difference]: Start difference. First operand 5422 states and 14232 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:12,514 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2021-03-10 17:52:12,682 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2021-03-10 17:52:12,861 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2021-03-10 17:52:13,087 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2021-03-10 17:52:13,309 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2021-03-10 17:52:13,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:13,459 INFO L93 Difference]: Finished difference Result 10929 states and 28098 transitions. [2021-03-10 17:52:13,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:52:13,460 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:52:13,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:13,469 INFO L225 Difference]: With dead ends: 10929 [2021-03-10 17:52:13,469 INFO L226 Difference]: Without dead ends: 10929 [2021-03-10 17:52:13,469 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1541.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:52:13,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10929 states. [2021-03-10 17:52:13,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10929 to 5568. [2021-03-10 17:52:13,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5568 states, 5566 states have (on average 2.632411067193676) internal successors, (14652), 5567 states have internal predecessors, (14652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:13,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5568 states to 5568 states and 14652 transitions. [2021-03-10 17:52:13,547 INFO L78 Accepts]: Start accepts. Automaton has 5568 states and 14652 transitions. Word has length 108 [2021-03-10 17:52:13,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:13,547 INFO L480 AbstractCegarLoop]: Abstraction has 5568 states and 14652 transitions. [2021-03-10 17:52:13,547 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:13,548 INFO L276 IsEmpty]: Start isEmpty. Operand 5568 states and 14652 transitions. [2021-03-10 17:52:13,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:52:13,551 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:13,551 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:13,551 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-03-10 17:52:13,551 INFO L428 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]=== [2021-03-10 17:52:13,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:13,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1840345243, now seen corresponding path program 77 times [2021-03-10 17:52:13,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:13,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358556204] [2021-03-10 17:52:13,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:13,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:13,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:13,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358556204] [2021-03-10 17:52:13,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:13,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:13,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249784649] [2021-03-10 17:52:13,938 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:13,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:13,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:13,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:13,938 INFO L87 Difference]: Start difference. First operand 5568 states and 14652 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:14,620 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:52:14,770 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:52:14,991 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:52:15,188 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:52:15,402 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:52:15,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:15,556 INFO L93 Difference]: Finished difference Result 13746 states and 35117 transitions. [2021-03-10 17:52:15,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:52:15,556 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:52:15,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:15,567 INFO L225 Difference]: With dead ends: 13746 [2021-03-10 17:52:15,568 INFO L226 Difference]: Without dead ends: 13746 [2021-03-10 17:52:15,568 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1477.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:52:15,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13746 states. [2021-03-10 17:52:15,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13746 to 5583. [2021-03-10 17:52:15,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5583 states, 5581 states have (on average 2.633040673714388) internal successors, (14695), 5582 states have internal predecessors, (14695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:15,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5583 states to 5583 states and 14695 transitions. [2021-03-10 17:52:15,655 INFO L78 Accepts]: Start accepts. Automaton has 5583 states and 14695 transitions. Word has length 108 [2021-03-10 17:52:15,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:15,655 INFO L480 AbstractCegarLoop]: Abstraction has 5583 states and 14695 transitions. [2021-03-10 17:52:15,655 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:15,655 INFO L276 IsEmpty]: Start isEmpty. Operand 5583 states and 14695 transitions. [2021-03-10 17:52:15,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:52:15,659 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:15,659 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:15,659 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-03-10 17:52:15,659 INFO L428 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]=== [2021-03-10 17:52:15,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:15,659 INFO L82 PathProgramCache]: Analyzing trace with hash 925464235, now seen corresponding path program 78 times [2021-03-10 17:52:15,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:15,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623109449] [2021-03-10 17:52:15,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:15,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:16,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:16,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623109449] [2021-03-10 17:52:16,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:16,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:16,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832991970] [2021-03-10 17:52:16,052 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:16,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:16,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:16,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:16,052 INFO L87 Difference]: Start difference. First operand 5583 states and 14695 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:16,801 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2021-03-10 17:52:16,970 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2021-03-10 17:52:17,186 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2021-03-10 17:52:17,390 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2021-03-10 17:52:17,616 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2021-03-10 17:52:17,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:17,751 INFO L93 Difference]: Finished difference Result 11975 states and 30418 transitions. [2021-03-10 17:52:17,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:52:17,751 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:52:17,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:17,761 INFO L225 Difference]: With dead ends: 11975 [2021-03-10 17:52:17,761 INFO L226 Difference]: Without dead ends: 11975 [2021-03-10 17:52:17,761 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1569.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:52:17,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11975 states. [2021-03-10 17:52:17,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11975 to 5538. [2021-03-10 17:52:17,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5538 states, 5536 states have (on average 2.63114161849711) internal successors, (14566), 5537 states have internal predecessors, (14566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:17,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5538 states to 5538 states and 14566 transitions. [2021-03-10 17:52:17,839 INFO L78 Accepts]: Start accepts. Automaton has 5538 states and 14566 transitions. Word has length 108 [2021-03-10 17:52:17,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:17,839 INFO L480 AbstractCegarLoop]: Abstraction has 5538 states and 14566 transitions. [2021-03-10 17:52:17,839 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:17,839 INFO L276 IsEmpty]: Start isEmpty. Operand 5538 states and 14566 transitions. [2021-03-10 17:52:17,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:52:17,843 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:17,843 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:17,843 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-03-10 17:52:17,843 INFO L428 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]=== [2021-03-10 17:52:17,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:17,844 INFO L82 PathProgramCache]: Analyzing trace with hash -2133107319, now seen corresponding path program 79 times [2021-03-10 17:52:17,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:17,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715247914] [2021-03-10 17:52:17,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:17,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:18,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:18,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715247914] [2021-03-10 17:52:18,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:18,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:18,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728538793] [2021-03-10 17:52:18,337 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:18,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:18,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:18,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:18,338 INFO L87 Difference]: Start difference. First operand 5538 states and 14566 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:19,029 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:52:19,199 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:52:19,365 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:52:19,549 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:52:19,758 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:52:19,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:19,891 INFO L93 Difference]: Finished difference Result 13709 states and 35123 transitions. [2021-03-10 17:52:19,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:52:19,892 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:52:19,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:19,903 INFO L225 Difference]: With dead ends: 13709 [2021-03-10 17:52:19,903 INFO L226 Difference]: Without dead ends: 13709 [2021-03-10 17:52:19,904 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1565.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:52:19,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13709 states. [2021-03-10 17:52:19,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13709 to 5568. [2021-03-10 17:52:19,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5568 states, 5566 states have (on average 2.632411067193676) internal successors, (14652), 5567 states have internal predecessors, (14652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:19,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5568 states to 5568 states and 14652 transitions. [2021-03-10 17:52:19,994 INFO L78 Accepts]: Start accepts. Automaton has 5568 states and 14652 transitions. Word has length 108 [2021-03-10 17:52:19,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:19,994 INFO L480 AbstractCegarLoop]: Abstraction has 5568 states and 14652 transitions. [2021-03-10 17:52:19,994 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:19,994 INFO L276 IsEmpty]: Start isEmpty. Operand 5568 states and 14652 transitions. [2021-03-10 17:52:19,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:52:19,999 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:19,999 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:19,999 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-03-10 17:52:19,999 INFO L428 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]=== [2021-03-10 17:52:19,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:19,999 INFO L82 PathProgramCache]: Analyzing trace with hash -195134523, now seen corresponding path program 80 times [2021-03-10 17:52:19,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:20,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367127036] [2021-03-10 17:52:20,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:20,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:20,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:20,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367127036] [2021-03-10 17:52:20,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:20,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:20,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419534019] [2021-03-10 17:52:20,371 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:20,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:20,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:20,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:20,371 INFO L87 Difference]: Start difference. First operand 5568 states and 14652 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:21,050 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:52:21,219 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:52:21,385 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:52:21,582 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:52:21,782 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:52:21,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:21,936 INFO L93 Difference]: Finished difference Result 14625 states and 37100 transitions. [2021-03-10 17:52:21,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:52:21,936 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:52:21,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:21,948 INFO L225 Difference]: With dead ends: 14625 [2021-03-10 17:52:21,948 INFO L226 Difference]: Without dead ends: 14625 [2021-03-10 17:52:21,948 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1454.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:52:21,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14625 states. [2021-03-10 17:52:22,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14625 to 5553. [2021-03-10 17:52:22,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5553 states, 5551 states have (on average 2.631778058007566) internal successors, (14609), 5552 states have internal predecessors, (14609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:22,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5553 states to 5553 states and 14609 transitions. [2021-03-10 17:52:22,037 INFO L78 Accepts]: Start accepts. Automaton has 5553 states and 14609 transitions. Word has length 108 [2021-03-10 17:52:22,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:22,038 INFO L480 AbstractCegarLoop]: Abstraction has 5553 states and 14609 transitions. [2021-03-10 17:52:22,038 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:22,038 INFO L276 IsEmpty]: Start isEmpty. Operand 5553 states and 14609 transitions. [2021-03-10 17:52:22,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:52:22,042 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:22,042 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:22,042 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-03-10 17:52:22,042 INFO L428 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]=== [2021-03-10 17:52:22,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:22,042 INFO L82 PathProgramCache]: Analyzing trace with hash -1407780959, now seen corresponding path program 81 times [2021-03-10 17:52:22,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:22,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723021443] [2021-03-10 17:52:22,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:22,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:22,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:22,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723021443] [2021-03-10 17:52:22,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:22,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:22,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882802511] [2021-03-10 17:52:22,411 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:22,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:22,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:22,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:22,411 INFO L87 Difference]: Start difference. First operand 5553 states and 14609 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:23,089 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:52:23,258 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:52:23,426 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:52:23,622 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:52:23,823 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:52:23,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:23,968 INFO L93 Difference]: Finished difference Result 16303 states and 40962 transitions. [2021-03-10 17:52:23,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:52:23,969 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:52:23,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:23,983 INFO L225 Difference]: With dead ends: 16303 [2021-03-10 17:52:23,983 INFO L226 Difference]: Without dead ends: 16303 [2021-03-10 17:52:23,983 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1455.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:52:24,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16303 states. [2021-03-10 17:52:24,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16303 to 5568. [2021-03-10 17:52:24,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5568 states, 5566 states have (on average 2.632411067193676) internal successors, (14652), 5567 states have internal predecessors, (14652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:24,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5568 states to 5568 states and 14652 transitions. [2021-03-10 17:52:24,087 INFO L78 Accepts]: Start accepts. Automaton has 5568 states and 14652 transitions. Word has length 108 [2021-03-10 17:52:24,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:24,087 INFO L480 AbstractCegarLoop]: Abstraction has 5568 states and 14652 transitions. [2021-03-10 17:52:24,087 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:24,087 INFO L276 IsEmpty]: Start isEmpty. Operand 5568 states and 14652 transitions. [2021-03-10 17:52:24,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:52:24,091 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:24,091 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:24,091 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-03-10 17:52:24,091 INFO L428 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]=== [2021-03-10 17:52:24,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:24,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1358028519, now seen corresponding path program 82 times [2021-03-10 17:52:24,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:24,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119537134] [2021-03-10 17:52:24,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:24,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:24,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:24,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119537134] [2021-03-10 17:52:24,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:24,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:24,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293648617] [2021-03-10 17:52:24,460 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:24,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:24,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:24,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:24,460 INFO L87 Difference]: Start difference. First operand 5568 states and 14652 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:25,204 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2021-03-10 17:52:25,392 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2021-03-10 17:52:25,578 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 55 [2021-03-10 17:52:25,777 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 60 [2021-03-10 17:52:25,989 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 66 [2021-03-10 17:52:26,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:26,113 INFO L93 Difference]: Finished difference Result 13338 states and 33596 transitions. [2021-03-10 17:52:26,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:52:26,114 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:52:26,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:26,124 INFO L225 Difference]: With dead ends: 13338 [2021-03-10 17:52:26,125 INFO L226 Difference]: Without dead ends: 13338 [2021-03-10 17:52:26,127 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1551.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:52:26,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13338 states. [2021-03-10 17:52:26,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13338 to 5508. [2021-03-10 17:52:26,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5508 states, 5506 states have (on average 2.6298583363603343) internal successors, (14480), 5507 states have internal predecessors, (14480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:26,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5508 states to 5508 states and 14480 transitions. [2021-03-10 17:52:26,212 INFO L78 Accepts]: Start accepts. Automaton has 5508 states and 14480 transitions. Word has length 108 [2021-03-10 17:52:26,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:26,212 INFO L480 AbstractCegarLoop]: Abstraction has 5508 states and 14480 transitions. [2021-03-10 17:52:26,212 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:26,212 INFO L276 IsEmpty]: Start isEmpty. Operand 5508 states and 14480 transitions. [2021-03-10 17:52:26,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:52:26,216 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:26,216 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:26,216 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-03-10 17:52:26,216 INFO L428 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]=== [2021-03-10 17:52:26,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:26,216 INFO L82 PathProgramCache]: Analyzing trace with hash 698070437, now seen corresponding path program 83 times [2021-03-10 17:52:26,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:26,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678373592] [2021-03-10 17:52:26,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:26,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:26,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:26,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678373592] [2021-03-10 17:52:26,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:26,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:26,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480312320] [2021-03-10 17:52:26,601 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:26,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:26,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:26,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:26,602 INFO L87 Difference]: Start difference. First operand 5508 states and 14480 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:27,312 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:52:27,464 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:52:27,635 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:52:27,846 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:52:28,060 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:52:28,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:28,212 INFO L93 Difference]: Finished difference Result 14313 states and 36769 transitions. [2021-03-10 17:52:28,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:52:28,213 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:52:28,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:28,225 INFO L225 Difference]: With dead ends: 14313 [2021-03-10 17:52:28,225 INFO L226 Difference]: Without dead ends: 14313 [2021-03-10 17:52:28,226 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1455.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:52:28,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14313 states. [2021-03-10 17:52:28,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14313 to 5568. [2021-03-10 17:52:28,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5568 states, 5566 states have (on average 2.632411067193676) internal successors, (14652), 5567 states have internal predecessors, (14652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:28,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5568 states to 5568 states and 14652 transitions. [2021-03-10 17:52:28,316 INFO L78 Accepts]: Start accepts. Automaton has 5568 states and 14652 transitions. Word has length 108 [2021-03-10 17:52:28,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:28,316 INFO L480 AbstractCegarLoop]: Abstraction has 5568 states and 14652 transitions. [2021-03-10 17:52:28,316 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:28,316 INFO L276 IsEmpty]: Start isEmpty. Operand 5568 states and 14652 transitions. [2021-03-10 17:52:28,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:52:28,320 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:28,320 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:28,320 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-03-10 17:52:28,320 INFO L428 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]=== [2021-03-10 17:52:28,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:28,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1867757719, now seen corresponding path program 84 times [2021-03-10 17:52:28,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:28,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747111036] [2021-03-10 17:52:28,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:28,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:28,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:28,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747111036] [2021-03-10 17:52:28,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:28,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:28,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669480260] [2021-03-10 17:52:28,719 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:28,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:28,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:28,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:28,720 INFO L87 Difference]: Start difference. First operand 5568 states and 14652 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:29,404 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:52:29,552 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:52:29,746 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:52:29,930 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:52:30,142 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:52:30,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:30,297 INFO L93 Difference]: Finished difference Result 16902 states and 43300 transitions. [2021-03-10 17:52:30,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:52:30,297 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:52:30,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:30,316 INFO L225 Difference]: With dead ends: 16902 [2021-03-10 17:52:30,316 INFO L226 Difference]: Without dead ends: 16902 [2021-03-10 17:52:30,316 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1456.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:52:30,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16902 states. [2021-03-10 17:52:30,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16902 to 5583. [2021-03-10 17:52:30,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5583 states, 5581 states have (on average 2.633040673714388) internal successors, (14695), 5582 states have internal predecessors, (14695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:30,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5583 states to 5583 states and 14695 transitions. [2021-03-10 17:52:30,421 INFO L78 Accepts]: Start accepts. Automaton has 5583 states and 14695 transitions. Word has length 108 [2021-03-10 17:52:30,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:30,421 INFO L480 AbstractCegarLoop]: Abstraction has 5583 states and 14695 transitions. [2021-03-10 17:52:30,422 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:30,422 INFO L276 IsEmpty]: Start isEmpty. Operand 5583 states and 14695 transitions. [2021-03-10 17:52:30,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:52:30,425 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:30,425 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:30,425 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-03-10 17:52:30,426 INFO L428 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]=== [2021-03-10 17:52:30,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:30,426 INFO L82 PathProgramCache]: Analyzing trace with hash 70215077, now seen corresponding path program 85 times [2021-03-10 17:52:30,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:30,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004427360] [2021-03-10 17:52:30,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:30,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:30,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:30,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004427360] [2021-03-10 17:52:30,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:30,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:30,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240328888] [2021-03-10 17:52:30,800 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:30,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:30,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:30,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:30,800 INFO L87 Difference]: Start difference. First operand 5583 states and 14695 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:31,537 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:52:31,691 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:52:31,894 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:52:32,116 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:52:32,323 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:52:32,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:32,479 INFO L93 Difference]: Finished difference Result 15305 states and 38935 transitions. [2021-03-10 17:52:32,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:52:32,479 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:52:32,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:32,492 INFO L225 Difference]: With dead ends: 15305 [2021-03-10 17:52:32,492 INFO L226 Difference]: Without dead ends: 15305 [2021-03-10 17:52:32,493 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1507.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:52:32,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15305 states. [2021-03-10 17:52:32,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15305 to 5538. [2021-03-10 17:52:32,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5538 states, 5536 states have (on average 2.63114161849711) internal successors, (14566), 5537 states have internal predecessors, (14566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:32,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5538 states to 5538 states and 14566 transitions. [2021-03-10 17:52:32,590 INFO L78 Accepts]: Start accepts. Automaton has 5538 states and 14566 transitions. Word has length 108 [2021-03-10 17:52:32,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:32,591 INFO L480 AbstractCegarLoop]: Abstraction has 5538 states and 14566 transitions. [2021-03-10 17:52:32,591 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:32,591 INFO L276 IsEmpty]: Start isEmpty. Operand 5538 states and 14566 transitions. [2021-03-10 17:52:32,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:52:32,595 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:32,595 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:32,595 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-03-10 17:52:32,596 INFO L428 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]=== [2021-03-10 17:52:32,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:32,596 INFO L82 PathProgramCache]: Analyzing trace with hash -2108129809, now seen corresponding path program 86 times [2021-03-10 17:52:32,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:32,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940916313] [2021-03-10 17:52:32,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:32,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:32,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:32,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940916313] [2021-03-10 17:52:32,958 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:32,958 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:32,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851320196] [2021-03-10 17:52:32,958 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:32,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:32,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:32,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:32,959 INFO L87 Difference]: Start difference. First operand 5538 states and 14566 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:33,662 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:52:33,838 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:52:34,011 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:52:34,199 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:52:34,411 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:52:34,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:34,581 INFO L93 Difference]: Finished difference Result 16690 states and 42181 transitions. [2021-03-10 17:52:34,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:52:34,582 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:52:34,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:34,596 INFO L225 Difference]: With dead ends: 16690 [2021-03-10 17:52:34,597 INFO L226 Difference]: Without dead ends: 16690 [2021-03-10 17:52:34,597 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1456.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:52:34,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16690 states. [2021-03-10 17:52:34,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16690 to 5568. [2021-03-10 17:52:34,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5568 states, 5566 states have (on average 2.632411067193676) internal successors, (14652), 5567 states have internal predecessors, (14652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:34,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5568 states to 5568 states and 14652 transitions. [2021-03-10 17:52:34,701 INFO L78 Accepts]: Start accepts. Automaton has 5568 states and 14652 transitions. Word has length 108 [2021-03-10 17:52:34,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:34,701 INFO L480 AbstractCegarLoop]: Abstraction has 5568 states and 14652 transitions. [2021-03-10 17:52:34,701 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:34,701 INFO L276 IsEmpty]: Start isEmpty. Operand 5568 states and 14652 transitions. [2021-03-10 17:52:34,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:52:34,704 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:34,704 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:34,705 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-03-10 17:52:34,705 INFO L428 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]=== [2021-03-10 17:52:34,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:34,705 INFO L82 PathProgramCache]: Analyzing trace with hash -170157013, now seen corresponding path program 87 times [2021-03-10 17:52:34,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:34,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702711143] [2021-03-10 17:52:34,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:34,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:35,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:35,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702711143] [2021-03-10 17:52:35,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:35,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:35,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934590657] [2021-03-10 17:52:35,106 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:35,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:35,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:35,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:35,107 INFO L87 Difference]: Start difference. First operand 5568 states and 14652 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:35,829 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:52:36,005 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:52:36,178 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:52:36,384 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:52:36,588 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:52:36,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:36,770 INFO L93 Difference]: Finished difference Result 17606 states and 44158 transitions. [2021-03-10 17:52:36,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:52:36,771 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:52:36,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:36,786 INFO L225 Difference]: With dead ends: 17606 [2021-03-10 17:52:36,786 INFO L226 Difference]: Without dead ends: 17606 [2021-03-10 17:52:36,786 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1499.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:52:36,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17606 states. [2021-03-10 17:52:36,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17606 to 5553. [2021-03-10 17:52:36,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5553 states, 5551 states have (on average 2.631778058007566) internal successors, (14609), 5552 states have internal predecessors, (14609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:36,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5553 states to 5553 states and 14609 transitions. [2021-03-10 17:52:36,890 INFO L78 Accepts]: Start accepts. Automaton has 5553 states and 14609 transitions. Word has length 108 [2021-03-10 17:52:36,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:36,891 INFO L480 AbstractCegarLoop]: Abstraction has 5553 states and 14609 transitions. [2021-03-10 17:52:36,891 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:36,891 INFO L276 IsEmpty]: Start isEmpty. Operand 5553 states and 14609 transitions. [2021-03-10 17:52:36,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:52:36,894 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:36,894 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:36,895 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-03-10 17:52:36,895 INFO L428 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]=== [2021-03-10 17:52:36,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:36,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1382803449, now seen corresponding path program 88 times [2021-03-10 17:52:36,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:36,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056248315] [2021-03-10 17:52:36,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:36,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:37,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:37,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056248315] [2021-03-10 17:52:37,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:37,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:37,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885543929] [2021-03-10 17:52:37,255 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:37,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:37,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:37,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:37,256 INFO L87 Difference]: Start difference. First operand 5553 states and 14609 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:37,961 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:52:38,137 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:52:38,312 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:52:38,514 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:52:38,718 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:52:38,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:38,926 INFO L93 Difference]: Finished difference Result 16870 states and 42480 transitions. [2021-03-10 17:52:38,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:52:38,926 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:52:38,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:38,938 INFO L225 Difference]: With dead ends: 16870 [2021-03-10 17:52:38,938 INFO L226 Difference]: Without dead ends: 16870 [2021-03-10 17:52:38,938 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1458.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:52:38,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16870 states. [2021-03-10 17:52:39,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16870 to 5568. [2021-03-10 17:52:39,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5568 states, 5566 states have (on average 2.632411067193676) internal successors, (14652), 5567 states have internal predecessors, (14652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:39,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5568 states to 5568 states and 14652 transitions. [2021-03-10 17:52:39,031 INFO L78 Accepts]: Start accepts. Automaton has 5568 states and 14652 transitions. Word has length 108 [2021-03-10 17:52:39,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:39,032 INFO L480 AbstractCegarLoop]: Abstraction has 5568 states and 14652 transitions. [2021-03-10 17:52:39,032 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:39,032 INFO L276 IsEmpty]: Start isEmpty. Operand 5568 states and 14652 transitions. [2021-03-10 17:52:39,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:52:39,035 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:39,035 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:39,036 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-03-10 17:52:39,036 INFO L428 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]=== [2021-03-10 17:52:39,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:39,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1383006029, now seen corresponding path program 89 times [2021-03-10 17:52:39,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:39,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261443761] [2021-03-10 17:52:39,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:39,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:39,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:39,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261443761] [2021-03-10 17:52:39,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:39,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:39,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816480894] [2021-03-10 17:52:39,413 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:39,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:39,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:39,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:39,414 INFO L87 Difference]: Start difference. First operand 5568 states and 14652 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:40,148 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2021-03-10 17:52:40,330 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2021-03-10 17:52:40,523 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2021-03-10 17:52:40,729 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 63 [2021-03-10 17:52:40,952 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2021-03-10 17:52:41,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:41,084 INFO L93 Difference]: Finished difference Result 13905 states and 35114 transitions. [2021-03-10 17:52:41,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:52:41,084 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:52:41,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:41,096 INFO L225 Difference]: With dead ends: 13905 [2021-03-10 17:52:41,096 INFO L226 Difference]: Without dead ends: 13905 [2021-03-10 17:52:41,097 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1575.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:52:41,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13905 states. [2021-03-10 17:52:41,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13905 to 5448. [2021-03-10 17:52:41,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5448 states, 5446 states have (on average 2.627249357326478) internal successors, (14308), 5447 states have internal predecessors, (14308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:41,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5448 states to 5448 states and 14308 transitions. [2021-03-10 17:52:41,185 INFO L78 Accepts]: Start accepts. Automaton has 5448 states and 14308 transitions. Word has length 108 [2021-03-10 17:52:41,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:41,185 INFO L480 AbstractCegarLoop]: Abstraction has 5448 states and 14308 transitions. [2021-03-10 17:52:41,185 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:41,185 INFO L276 IsEmpty]: Start isEmpty. Operand 5448 states and 14308 transitions. [2021-03-10 17:52:41,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:52:41,188 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:41,189 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:41,189 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-03-10 17:52:41,189 INFO L428 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]=== [2021-03-10 17:52:41,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:41,189 INFO L82 PathProgramCache]: Analyzing trace with hash -1450212815, now seen corresponding path program 90 times [2021-03-10 17:52:41,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:41,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805492340] [2021-03-10 17:52:41,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:41,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:41,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:41,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805492340] [2021-03-10 17:52:41,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:41,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-10 17:52:41,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943700682] [2021-03-10 17:52:41,544 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 17:52:41,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:41,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 17:52:41,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:52:41,545 INFO L87 Difference]: Start difference. First operand 5448 states and 14308 transitions. Second operand has 19 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:42,168 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2021-03-10 17:52:42,301 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-03-10 17:52:42,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:42,771 INFO L93 Difference]: Finished difference Result 7419 states and 18408 transitions. [2021-03-10 17:52:42,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-03-10 17:52:42,772 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:52:42,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:42,778 INFO L225 Difference]: With dead ends: 7419 [2021-03-10 17:52:42,778 INFO L226 Difference]: Without dead ends: 7419 [2021-03-10 17:52:42,779 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 1064.6ms TimeCoverageRelationStatistics Valid=327, Invalid=933, Unknown=0, NotChecked=0, Total=1260 [2021-03-10 17:52:42,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7419 states. [2021-03-10 17:52:42,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7419 to 5496. [2021-03-10 17:52:42,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5496 states, 5494 states have (on average 2.624681470695304) internal successors, (14420), 5495 states have internal predecessors, (14420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:42,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5496 states to 5496 states and 14420 transitions. [2021-03-10 17:52:42,847 INFO L78 Accepts]: Start accepts. Automaton has 5496 states and 14420 transitions. Word has length 108 [2021-03-10 17:52:42,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:42,847 INFO L480 AbstractCegarLoop]: Abstraction has 5496 states and 14420 transitions. [2021-03-10 17:52:42,847 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:42,847 INFO L276 IsEmpty]: Start isEmpty. Operand 5496 states and 14420 transitions. [2021-03-10 17:52:42,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:52:42,851 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:42,852 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:42,852 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-03-10 17:52:42,852 INFO L428 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]=== [2021-03-10 17:52:42,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:42,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1349376997, now seen corresponding path program 91 times [2021-03-10 17:52:42,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:42,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005454369] [2021-03-10 17:52:42,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:42,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:43,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:43,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005454369] [2021-03-10 17:52:43,280 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:43,280 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:43,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145024552] [2021-03-10 17:52:43,280 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:43,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:43,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:43,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:43,281 INFO L87 Difference]: Start difference. First operand 5496 states and 14420 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:43,978 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-03-10 17:52:44,125 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:52:44,291 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:52:44,507 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:52:44,722 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:52:44,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:44,851 INFO L93 Difference]: Finished difference Result 9532 states and 24783 transitions. [2021-03-10 17:52:44,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:52:44,852 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:52:44,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:44,860 INFO L225 Difference]: With dead ends: 9532 [2021-03-10 17:52:44,860 INFO L226 Difference]: Without dead ends: 9532 [2021-03-10 17:52:44,860 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1506.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:52:44,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9532 states. [2021-03-10 17:52:44,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9532 to 5624. [2021-03-10 17:52:44,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5624 states, 5622 states have (on average 2.6289576663109213) internal successors, (14780), 5623 states have internal predecessors, (14780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:44,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5624 states to 5624 states and 14780 transitions. [2021-03-10 17:52:44,929 INFO L78 Accepts]: Start accepts. Automaton has 5624 states and 14780 transitions. Word has length 108 [2021-03-10 17:52:44,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:44,929 INFO L480 AbstractCegarLoop]: Abstraction has 5624 states and 14780 transitions. [2021-03-10 17:52:44,929 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:44,929 INFO L276 IsEmpty]: Start isEmpty. Operand 5624 states and 14780 transitions. [2021-03-10 17:52:44,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:52:44,932 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:44,932 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:44,933 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-03-10 17:52:44,933 INFO L428 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]=== [2021-03-10 17:52:44,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:44,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1901108649, now seen corresponding path program 92 times [2021-03-10 17:52:44,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:44,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186919996] [2021-03-10 17:52:44,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:44,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:45,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:45,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186919996] [2021-03-10 17:52:45,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:45,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:45,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915631056] [2021-03-10 17:52:45,340 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:45,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:45,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:45,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:45,340 INFO L87 Difference]: Start difference. First operand 5624 states and 14780 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:46,049 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-03-10 17:52:46,209 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:52:46,374 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:52:46,598 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:52:46,817 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:52:46,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:46,962 INFO L93 Difference]: Finished difference Result 12567 states and 32514 transitions. [2021-03-10 17:52:46,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:52:46,962 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:52:46,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:46,974 INFO L225 Difference]: With dead ends: 12567 [2021-03-10 17:52:46,974 INFO L226 Difference]: Without dead ends: 12567 [2021-03-10 17:52:46,974 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1526.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:52:46,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12567 states. [2021-03-10 17:52:47,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12567 to 5654. [2021-03-10 17:52:47,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5654 states, 5652 states have (on average 2.630219391365888) internal successors, (14866), 5653 states have internal predecessors, (14866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:47,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5654 states to 5654 states and 14866 transitions. [2021-03-10 17:52:47,061 INFO L78 Accepts]: Start accepts. Automaton has 5654 states and 14866 transitions. Word has length 108 [2021-03-10 17:52:47,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:47,061 INFO L480 AbstractCegarLoop]: Abstraction has 5654 states and 14866 transitions. [2021-03-10 17:52:47,061 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:47,061 INFO L276 IsEmpty]: Start isEmpty. Operand 5654 states and 14866 transitions. [2021-03-10 17:52:47,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:52:47,065 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:47,065 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:47,065 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-03-10 17:52:47,065 INFO L428 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]=== [2021-03-10 17:52:47,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:47,065 INFO L82 PathProgramCache]: Analyzing trace with hash 791674281, now seen corresponding path program 93 times [2021-03-10 17:52:47,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:47,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610816514] [2021-03-10 17:52:47,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:47,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:47,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:47,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610816514] [2021-03-10 17:52:47,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:47,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:47,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146555124] [2021-03-10 17:52:47,463 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:47,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:47,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:47,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:47,463 INFO L87 Difference]: Start difference. First operand 5654 states and 14866 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:48,176 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-03-10 17:52:48,336 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:52:48,538 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:52:48,738 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:52:48,955 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:52:49,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:49,098 INFO L93 Difference]: Finished difference Result 12273 states and 31692 transitions. [2021-03-10 17:52:49,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:52:49,099 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:52:49,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:49,109 INFO L225 Difference]: With dead ends: 12273 [2021-03-10 17:52:49,109 INFO L226 Difference]: Without dead ends: 12273 [2021-03-10 17:52:49,109 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1509.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:52:49,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12273 states. [2021-03-10 17:52:49,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12273 to 5669. [2021-03-10 17:52:49,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5669 states, 5667 states have (on average 2.6308452443973884) internal successors, (14909), 5668 states have internal predecessors, (14909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:49,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5669 states to 5669 states and 14909 transitions. [2021-03-10 17:52:49,217 INFO L78 Accepts]: Start accepts. Automaton has 5669 states and 14909 transitions. Word has length 108 [2021-03-10 17:52:49,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:49,217 INFO L480 AbstractCegarLoop]: Abstraction has 5669 states and 14909 transitions. [2021-03-10 17:52:49,218 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:49,218 INFO L276 IsEmpty]: Start isEmpty. Operand 5669 states and 14909 transitions. [2021-03-10 17:52:49,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:52:49,221 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:49,221 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:49,221 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-03-10 17:52:49,222 INFO L428 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]=== [2021-03-10 17:52:49,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:49,222 INFO L82 PathProgramCache]: Analyzing trace with hash -1565320219, now seen corresponding path program 94 times [2021-03-10 17:52:49,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:49,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486417710] [2021-03-10 17:52:49,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:49,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:49,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:49,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486417710] [2021-03-10 17:52:49,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:49,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:49,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653665106] [2021-03-10 17:52:49,651 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:49,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:49,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:49,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:49,652 INFO L87 Difference]: Start difference. First operand 5669 states and 14909 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:50,351 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-03-10 17:52:50,506 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:52:50,701 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:52:50,908 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:52:51,114 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:52:51,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:51,237 INFO L93 Difference]: Finished difference Result 10676 states and 27327 transitions. [2021-03-10 17:52:51,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:52:51,238 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:52:51,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:51,247 INFO L225 Difference]: With dead ends: 10676 [2021-03-10 17:52:51,247 INFO L226 Difference]: Without dead ends: 10676 [2021-03-10 17:52:51,248 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1547.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:52:51,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10676 states. [2021-03-10 17:52:51,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10676 to 5624. [2021-03-10 17:52:51,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5624 states, 5622 states have (on average 2.6289576663109213) internal successors, (14780), 5623 states have internal predecessors, (14780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:51,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5624 states to 5624 states and 14780 transitions. [2021-03-10 17:52:51,330 INFO L78 Accepts]: Start accepts. Automaton has 5624 states and 14780 transitions. Word has length 108 [2021-03-10 17:52:51,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:51,330 INFO L480 AbstractCegarLoop]: Abstraction has 5624 states and 14780 transitions. [2021-03-10 17:52:51,330 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:51,330 INFO L276 IsEmpty]: Start isEmpty. Operand 5624 states and 14780 transitions. [2021-03-10 17:52:51,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:52:51,334 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:51,334 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:51,334 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-03-10 17:52:51,334 INFO L428 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]=== [2021-03-10 17:52:51,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:51,334 INFO L82 PathProgramCache]: Analyzing trace with hash -1936763021, now seen corresponding path program 95 times [2021-03-10 17:52:51,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:51,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952810332] [2021-03-10 17:52:51,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:51,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:51,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:51,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952810332] [2021-03-10 17:52:51,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:51,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:51,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024704708] [2021-03-10 17:52:51,723 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:51,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:51,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:51,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:51,724 INFO L87 Difference]: Start difference. First operand 5624 states and 14780 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:52,445 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:52:52,600 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:52:52,785 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:52:53,007 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:52:53,224 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:52:53,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:53,379 INFO L93 Difference]: Finished difference Result 12281 states and 31139 transitions. [2021-03-10 17:52:53,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:52:53,380 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:52:53,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:53,390 INFO L225 Difference]: With dead ends: 12281 [2021-03-10 17:52:53,390 INFO L226 Difference]: Without dead ends: 12281 [2021-03-10 17:52:53,390 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1508.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:52:53,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12281 states. [2021-03-10 17:52:53,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12281 to 5684. [2021-03-10 17:52:53,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5684 states, 5682 states have (on average 2.631467793030623) internal successors, (14952), 5683 states have internal predecessors, (14952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:53,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5684 states to 5684 states and 14952 transitions. [2021-03-10 17:52:53,474 INFO L78 Accepts]: Start accepts. Automaton has 5684 states and 14952 transitions. Word has length 108 [2021-03-10 17:52:53,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:53,474 INFO L480 AbstractCegarLoop]: Abstraction has 5684 states and 14952 transitions. [2021-03-10 17:52:53,475 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:53,475 INFO L276 IsEmpty]: Start isEmpty. Operand 5684 states and 14952 transitions. [2021-03-10 17:52:53,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:52:53,478 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:53,478 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:53,478 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-03-10 17:52:53,479 INFO L428 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]=== [2021-03-10 17:52:53,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:53,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1248769907, now seen corresponding path program 96 times [2021-03-10 17:52:53,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:53,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131045747] [2021-03-10 17:52:53,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:53,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:53,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:53,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131045747] [2021-03-10 17:52:53,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:53,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:53,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951592434] [2021-03-10 17:52:53,951 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:53,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:53,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:53,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:53,951 INFO L87 Difference]: Start difference. First operand 5684 states and 14952 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:54,665 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:52:54,819 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:52:55,023 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:52:55,219 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:52:55,438 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:52:55,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:55,598 INFO L93 Difference]: Finished difference Result 14870 states and 37670 transitions. [2021-03-10 17:52:55,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:52:55,598 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:52:55,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:55,611 INFO L225 Difference]: With dead ends: 14870 [2021-03-10 17:52:55,612 INFO L226 Difference]: Without dead ends: 14870 [2021-03-10 17:52:55,612 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1582.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:52:55,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14870 states. [2021-03-10 17:52:55,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14870 to 5699. [2021-03-10 17:52:55,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5699 states, 5697 states have (on average 2.632087063366684) internal successors, (14995), 5698 states have internal predecessors, (14995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:55,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5699 states to 5699 states and 14995 transitions. [2021-03-10 17:52:55,705 INFO L78 Accepts]: Start accepts. Automaton has 5699 states and 14995 transitions. Word has length 108 [2021-03-10 17:52:55,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:55,705 INFO L480 AbstractCegarLoop]: Abstraction has 5699 states and 14995 transitions. [2021-03-10 17:52:55,705 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:55,705 INFO L276 IsEmpty]: Start isEmpty. Operand 5699 states and 14995 transitions. [2021-03-10 17:52:55,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:52:55,709 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:55,709 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:55,709 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-03-10 17:52:55,709 INFO L428 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]=== [2021-03-10 17:52:55,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:55,710 INFO L82 PathProgramCache]: Analyzing trace with hash -1108224593, now seen corresponding path program 97 times [2021-03-10 17:52:55,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:55,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557842452] [2021-03-10 17:52:55,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:55,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:56,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:56,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557842452] [2021-03-10 17:52:56,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:56,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:56,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259291666] [2021-03-10 17:52:56,097 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:56,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:56,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:56,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:56,098 INFO L87 Difference]: Start difference. First operand 5699 states and 14995 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:56,835 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:52:56,992 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:52:57,201 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:52:57,415 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:52:57,626 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:52:57,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:57,785 INFO L93 Difference]: Finished difference Result 13273 states and 33305 transitions. [2021-03-10 17:52:57,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:52:57,786 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:52:57,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:57,797 INFO L225 Difference]: With dead ends: 13273 [2021-03-10 17:52:57,797 INFO L226 Difference]: Without dead ends: 13273 [2021-03-10 17:52:57,797 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1518.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:52:57,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13273 states. [2021-03-10 17:52:57,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13273 to 5654. [2021-03-10 17:52:57,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5654 states, 5652 states have (on average 2.630219391365888) internal successors, (14866), 5653 states have internal predecessors, (14866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:57,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5654 states to 5654 states and 14866 transitions. [2021-03-10 17:52:57,885 INFO L78 Accepts]: Start accepts. Automaton has 5654 states and 14866 transitions. Word has length 108 [2021-03-10 17:52:57,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:57,885 INFO L480 AbstractCegarLoop]: Abstraction has 5654 states and 14866 transitions. [2021-03-10 17:52:57,885 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:57,885 INFO L276 IsEmpty]: Start isEmpty. Operand 5654 states and 14866 transitions. [2021-03-10 17:52:57,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:52:57,889 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:57,889 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:57,889 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-03-10 17:52:57,889 INFO L428 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]=== [2021-03-10 17:52:57,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:57,890 INFO L82 PathProgramCache]: Analyzing trace with hash 407317905, now seen corresponding path program 98 times [2021-03-10 17:52:57,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:57,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51260482] [2021-03-10 17:52:57,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:57,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:58,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:58,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51260482] [2021-03-10 17:52:58,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:58,319 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:58,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568449711] [2021-03-10 17:52:58,319 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:58,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:58,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:58,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:58,320 INFO L87 Difference]: Start difference. First operand 5654 states and 14866 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:59,048 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:52:59,227 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:52:59,404 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:52:59,599 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:52:59,814 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:52:59,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:59,990 INFO L93 Difference]: Finished difference Result 11835 states and 29939 transitions. [2021-03-10 17:52:59,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:52:59,991 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:52:59,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:59,997 INFO L225 Difference]: With dead ends: 11835 [2021-03-10 17:52:59,997 INFO L226 Difference]: Without dead ends: 11835 [2021-03-10 17:52:59,997 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1542.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:53:00,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11835 states. [2021-03-10 17:53:00,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11835 to 5684. [2021-03-10 17:53:00,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5684 states, 5682 states have (on average 2.631467793030623) internal successors, (14952), 5683 states have internal predecessors, (14952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:00,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5684 states to 5684 states and 14952 transitions. [2021-03-10 17:53:00,069 INFO L78 Accepts]: Start accepts. Automaton has 5684 states and 14952 transitions. Word has length 108 [2021-03-10 17:53:00,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:00,069 INFO L480 AbstractCegarLoop]: Abstraction has 5684 states and 14952 transitions. [2021-03-10 17:53:00,069 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:00,069 INFO L276 IsEmpty]: Start isEmpty. Operand 5684 states and 14952 transitions. [2021-03-10 17:53:00,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:53:00,073 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:00,073 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:00,073 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-03-10 17:53:00,073 INFO L428 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]=== [2021-03-10 17:53:00,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:00,073 INFO L82 PathProgramCache]: Analyzing trace with hash -1949676595, now seen corresponding path program 99 times [2021-03-10 17:53:00,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:00,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678120406] [2021-03-10 17:53:00,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:00,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:00,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:00,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678120406] [2021-03-10 17:53:00,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:00,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:00,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399099538] [2021-03-10 17:53:00,453 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:00,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:00,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:00,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:00,453 INFO L87 Difference]: Start difference. First operand 5684 states and 14952 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:01,185 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:53:01,364 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:53:01,541 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:53:01,752 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:53:01,959 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:53:02,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:02,119 INFO L93 Difference]: Finished difference Result 12751 states and 31916 transitions. [2021-03-10 17:53:02,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:53:02,120 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:53:02,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:02,131 INFO L225 Difference]: With dead ends: 12751 [2021-03-10 17:53:02,131 INFO L226 Difference]: Without dead ends: 12751 [2021-03-10 17:53:02,131 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1509.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:53:02,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12751 states. [2021-03-10 17:53:02,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12751 to 5669. [2021-03-10 17:53:02,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5669 states, 5667 states have (on average 2.6308452443973884) internal successors, (14909), 5668 states have internal predecessors, (14909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:02,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5669 states to 5669 states and 14909 transitions. [2021-03-10 17:53:02,217 INFO L78 Accepts]: Start accepts. Automaton has 5669 states and 14909 transitions. Word has length 108 [2021-03-10 17:53:02,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:02,217 INFO L480 AbstractCegarLoop]: Abstraction has 5669 states and 14909 transitions. [2021-03-10 17:53:02,217 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:02,217 INFO L276 IsEmpty]: Start isEmpty. Operand 5669 states and 14909 transitions. [2021-03-10 17:53:02,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:53:02,221 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:02,221 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:02,221 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-03-10 17:53:02,221 INFO L428 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]=== [2021-03-10 17:53:02,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:02,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1132644265, now seen corresponding path program 100 times [2021-03-10 17:53:02,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:02,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788052004] [2021-03-10 17:53:02,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:02,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:02,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:02,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788052004] [2021-03-10 17:53:02,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:02,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:02,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614748168] [2021-03-10 17:53:02,594 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:02,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:02,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:02,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:02,594 INFO L87 Difference]: Start difference. First operand 5669 states and 14909 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:03,300 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:53:03,486 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:53:03,660 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:53:03,860 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:53:04,065 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:53:04,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:04,192 INFO L93 Difference]: Finished difference Result 12015 states and 30238 transitions. [2021-03-10 17:53:04,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:53:04,193 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:53:04,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:04,203 INFO L225 Difference]: With dead ends: 12015 [2021-03-10 17:53:04,203 INFO L226 Difference]: Without dead ends: 12015 [2021-03-10 17:53:04,203 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1522.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:53:04,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12015 states. [2021-03-10 17:53:04,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12015 to 5684. [2021-03-10 17:53:04,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5684 states, 5682 states have (on average 2.631467793030623) internal successors, (14952), 5683 states have internal predecessors, (14952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:04,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5684 states to 5684 states and 14952 transitions. [2021-03-10 17:53:04,287 INFO L78 Accepts]: Start accepts. Automaton has 5684 states and 14952 transitions. Word has length 108 [2021-03-10 17:53:04,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:04,287 INFO L480 AbstractCegarLoop]: Abstraction has 5684 states and 14952 transitions. [2021-03-10 17:53:04,287 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:04,287 INFO L276 IsEmpty]: Start isEmpty. Operand 5684 states and 14952 transitions. [2021-03-10 17:53:04,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:53:04,291 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:04,291 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:04,291 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-03-10 17:53:04,291 INFO L428 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]=== [2021-03-10 17:53:04,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:04,292 INFO L82 PathProgramCache]: Analyzing trace with hash -396513553, now seen corresponding path program 101 times [2021-03-10 17:53:04,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:04,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467650891] [2021-03-10 17:53:04,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:04,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:04,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:04,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467650891] [2021-03-10 17:53:04,665 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:04,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:04,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803909991] [2021-03-10 17:53:04,665 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:04,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:04,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:04,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:04,666 INFO L87 Difference]: Start difference. First operand 5684 states and 14952 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:05,435 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2021-03-10 17:53:05,627 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2021-03-10 17:53:05,828 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2021-03-10 17:53:06,043 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 63 [2021-03-10 17:53:06,271 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2021-03-10 17:53:06,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:06,394 INFO L93 Difference]: Finished difference Result 9050 states and 22872 transitions. [2021-03-10 17:53:06,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:53:06,394 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:53:06,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:06,401 INFO L225 Difference]: With dead ends: 9050 [2021-03-10 17:53:06,402 INFO L226 Difference]: Without dead ends: 9050 [2021-03-10 17:53:06,402 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1602.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:53:06,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9050 states. [2021-03-10 17:53:06,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9050 to 5624. [2021-03-10 17:53:06,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5624 states, 5622 states have (on average 2.6289576663109213) internal successors, (14780), 5623 states have internal predecessors, (14780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:06,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5624 states to 5624 states and 14780 transitions. [2021-03-10 17:53:06,468 INFO L78 Accepts]: Start accepts. Automaton has 5624 states and 14780 transitions. Word has length 108 [2021-03-10 17:53:06,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:06,468 INFO L480 AbstractCegarLoop]: Abstraction has 5624 states and 14780 transitions. [2021-03-10 17:53:06,468 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:06,468 INFO L276 IsEmpty]: Start isEmpty. Operand 5624 states and 14780 transitions. [2021-03-10 17:53:06,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:53:06,472 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:06,472 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:06,472 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-03-10 17:53:06,472 INFO L428 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]=== [2021-03-10 17:53:06,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:06,472 INFO L82 PathProgramCache]: Analyzing trace with hash -173004123, now seen corresponding path program 102 times [2021-03-10 17:53:06,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:06,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140059018] [2021-03-10 17:53:06,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:06,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:06,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:06,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140059018] [2021-03-10 17:53:06,911 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:06,911 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:06,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488179319] [2021-03-10 17:53:06,912 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:06,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:06,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:06,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:06,912 INFO L87 Difference]: Start difference. First operand 5624 states and 14780 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:07,644 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-03-10 17:53:07,816 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2021-03-10 17:53:08,003 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2021-03-10 17:53:08,235 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2021-03-10 17:53:08,459 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 66 [2021-03-10 17:53:08,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:08,627 INFO L93 Difference]: Finished difference Result 17373 states and 44805 transitions. [2021-03-10 17:53:08,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:53:08,627 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:53:08,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:08,643 INFO L225 Difference]: With dead ends: 17373 [2021-03-10 17:53:08,643 INFO L226 Difference]: Without dead ends: 17373 [2021-03-10 17:53:08,643 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1603.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:53:08,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17373 states. [2021-03-10 17:53:08,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17373 to 5757. [2021-03-10 17:53:08,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5757 states, 5755 states have (on average 2.6345786272806255) internal successors, (15162), 5756 states have internal predecessors, (15162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:08,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5757 states to 5757 states and 15162 transitions. [2021-03-10 17:53:08,755 INFO L78 Accepts]: Start accepts. Automaton has 5757 states and 15162 transitions. Word has length 108 [2021-03-10 17:53:08,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:08,755 INFO L480 AbstractCegarLoop]: Abstraction has 5757 states and 15162 transitions. [2021-03-10 17:53:08,755 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:08,755 INFO L276 IsEmpty]: Start isEmpty. Operand 5757 states and 15162 transitions. [2021-03-10 17:53:08,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:53:08,759 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:08,759 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:08,759 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-03-10 17:53:08,759 INFO L428 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]=== [2021-03-10 17:53:08,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:08,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1277883069, now seen corresponding path program 103 times [2021-03-10 17:53:08,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:08,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238570205] [2021-03-10 17:53:08,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:08,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:09,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:09,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238570205] [2021-03-10 17:53:09,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:09,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:09,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789489701] [2021-03-10 17:53:09,151 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:09,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:09,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:09,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:09,152 INFO L87 Difference]: Start difference. First operand 5757 states and 15162 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:09,859 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:53:10,012 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:53:10,211 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:53:10,409 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:53:10,637 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:53:10,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:10,806 INFO L93 Difference]: Finished difference Result 20190 states and 51824 transitions. [2021-03-10 17:53:10,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:53:10,807 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:53:10,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:10,826 INFO L225 Difference]: With dead ends: 20190 [2021-03-10 17:53:10,826 INFO L226 Difference]: Without dead ends: 20190 [2021-03-10 17:53:10,826 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1522.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:53:10,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20190 states. [2021-03-10 17:53:10,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20190 to 5772. [2021-03-10 17:53:10,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5772 states, 5770 states have (on average 2.6351819757365686) internal successors, (15205), 5771 states have internal predecessors, (15205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:10,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5772 states to 5772 states and 15205 transitions. [2021-03-10 17:53:10,965 INFO L78 Accepts]: Start accepts. Automaton has 5772 states and 15205 transitions. Word has length 108 [2021-03-10 17:53:10,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:10,965 INFO L480 AbstractCegarLoop]: Abstraction has 5772 states and 15205 transitions. [2021-03-10 17:53:10,965 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:10,965 INFO L276 IsEmpty]: Start isEmpty. Operand 5772 states and 15205 transitions. [2021-03-10 17:53:10,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:53:10,971 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:10,971 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:10,971 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-03-10 17:53:10,971 INFO L428 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]=== [2021-03-10 17:53:10,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:10,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1487926409, now seen corresponding path program 104 times [2021-03-10 17:53:10,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:10,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879662786] [2021-03-10 17:53:10,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:10,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:11,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:11,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879662786] [2021-03-10 17:53:11,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:11,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:11,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639501147] [2021-03-10 17:53:11,392 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:11,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:11,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:11,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:11,393 INFO L87 Difference]: Start difference. First operand 5772 states and 15205 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:12,167 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-03-10 17:53:12,341 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2021-03-10 17:53:12,569 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2021-03-10 17:53:12,783 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2021-03-10 17:53:13,014 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 66 [2021-03-10 17:53:13,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:13,178 INFO L93 Difference]: Finished difference Result 18419 states and 47125 transitions. [2021-03-10 17:53:13,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:53:13,178 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:53:13,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:13,194 INFO L225 Difference]: With dead ends: 18419 [2021-03-10 17:53:13,194 INFO L226 Difference]: Without dead ends: 18419 [2021-03-10 17:53:13,195 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1629.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:53:13,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18419 states. [2021-03-10 17:53:13,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18419 to 5727. [2021-03-10 17:53:13,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5727 states, 5725 states have (on average 2.633362445414847) internal successors, (15076), 5726 states have internal predecessors, (15076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:13,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5727 states to 5727 states and 15076 transitions. [2021-03-10 17:53:13,305 INFO L78 Accepts]: Start accepts. Automaton has 5727 states and 15076 transitions. Word has length 108 [2021-03-10 17:53:13,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:13,305 INFO L480 AbstractCegarLoop]: Abstraction has 5727 states and 15076 transitions. [2021-03-10 17:53:13,306 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:13,306 INFO L276 IsEmpty]: Start isEmpty. Operand 5727 states and 15076 transitions. [2021-03-10 17:53:13,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:53:13,309 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:13,309 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:13,309 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-03-10 17:53:13,309 INFO L428 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]=== [2021-03-10 17:53:13,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:13,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1570645145, now seen corresponding path program 105 times [2021-03-10 17:53:13,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:13,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475620289] [2021-03-10 17:53:13,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:13,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:13,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:13,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475620289] [2021-03-10 17:53:13,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:13,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:13,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594748584] [2021-03-10 17:53:13,689 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:13,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:13,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:13,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:13,690 INFO L87 Difference]: Start difference. First operand 5727 states and 15076 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:14,444 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:53:14,628 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:53:14,805 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:53:14,998 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:53:15,220 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:53:15,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:15,376 INFO L93 Difference]: Finished difference Result 14940 states and 38498 transitions. [2021-03-10 17:53:15,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:53:15,377 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:53:15,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:15,389 INFO L225 Difference]: With dead ends: 14940 [2021-03-10 17:53:15,389 INFO L226 Difference]: Without dead ends: 14940 [2021-03-10 17:53:15,390 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1515.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:53:15,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14940 states. [2021-03-10 17:53:15,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14940 to 5757. [2021-03-10 17:53:15,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5757 states, 5755 states have (on average 2.6345786272806255) internal successors, (15162), 5756 states have internal predecessors, (15162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:15,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5757 states to 5757 states and 15162 transitions. [2021-03-10 17:53:15,484 INFO L78 Accepts]: Start accepts. Automaton has 5757 states and 15162 transitions. Word has length 108 [2021-03-10 17:53:15,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:15,484 INFO L480 AbstractCegarLoop]: Abstraction has 5757 states and 15162 transitions. [2021-03-10 17:53:15,484 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:15,484 INFO L276 IsEmpty]: Start isEmpty. Operand 5757 states and 15162 transitions. [2021-03-10 17:53:15,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:53:15,488 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:15,488 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:15,488 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-03-10 17:53:15,488 INFO L428 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]=== [2021-03-10 17:53:15,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:15,488 INFO L82 PathProgramCache]: Analyzing trace with hash 367327651, now seen corresponding path program 106 times [2021-03-10 17:53:15,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:15,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445122690] [2021-03-10 17:53:15,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:15,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:15,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:15,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445122690] [2021-03-10 17:53:15,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:15,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:15,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066596204] [2021-03-10 17:53:15,866 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:15,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:15,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:15,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:15,866 INFO L87 Difference]: Start difference. First operand 5757 states and 15162 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:16,578 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:53:16,755 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:53:16,930 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:53:17,137 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:53:17,345 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:53:17,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:17,516 INFO L93 Difference]: Finished difference Result 15856 states and 40475 transitions. [2021-03-10 17:53:17,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:53:17,517 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:53:17,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:17,527 INFO L225 Difference]: With dead ends: 15856 [2021-03-10 17:53:17,527 INFO L226 Difference]: Without dead ends: 15856 [2021-03-10 17:53:17,527 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1526.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:53:17,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15856 states. [2021-03-10 17:53:17,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15856 to 5742. [2021-03-10 17:53:17,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5742 states, 5740 states have (on average 2.63397212543554) internal successors, (15119), 5741 states have internal predecessors, (15119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:17,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5742 states to 5742 states and 15119 transitions. [2021-03-10 17:53:17,612 INFO L78 Accepts]: Start accepts. Automaton has 5742 states and 15119 transitions. Word has length 108 [2021-03-10 17:53:17,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:17,612 INFO L480 AbstractCegarLoop]: Abstraction has 5742 states and 15119 transitions. [2021-03-10 17:53:17,612 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:17,612 INFO L276 IsEmpty]: Start isEmpty. Operand 5742 states and 15119 transitions. [2021-03-10 17:53:17,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:53:17,616 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:17,616 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:17,616 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-03-10 17:53:17,616 INFO L428 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]=== [2021-03-10 17:53:17,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:17,617 INFO L82 PathProgramCache]: Analyzing trace with hash -845318785, now seen corresponding path program 107 times [2021-03-10 17:53:17,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:17,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102738892] [2021-03-10 17:53:17,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:17,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:18,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:18,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102738892] [2021-03-10 17:53:18,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:18,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:18,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885742989] [2021-03-10 17:53:18,009 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:18,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:18,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:18,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:18,009 INFO L87 Difference]: Start difference. First operand 5742 states and 15119 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:18,717 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:53:18,892 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:53:19,067 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:53:19,269 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:53:19,473 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:53:19,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:19,635 INFO L93 Difference]: Finished difference Result 18953 states and 48224 transitions. [2021-03-10 17:53:19,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:53:19,635 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:53:19,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:19,652 INFO L225 Difference]: With dead ends: 18953 [2021-03-10 17:53:19,652 INFO L226 Difference]: Without dead ends: 18953 [2021-03-10 17:53:19,653 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1507.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:53:19,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18953 states. [2021-03-10 17:53:19,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18953 to 5757. [2021-03-10 17:53:19,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5757 states, 5755 states have (on average 2.6345786272806255) internal successors, (15162), 5756 states have internal predecessors, (15162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:19,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5757 states to 5757 states and 15162 transitions. [2021-03-10 17:53:19,771 INFO L78 Accepts]: Start accepts. Automaton has 5757 states and 15162 transitions. Word has length 108 [2021-03-10 17:53:19,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:19,771 INFO L480 AbstractCegarLoop]: Abstraction has 5757 states and 15162 transitions. [2021-03-10 17:53:19,771 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:19,771 INFO L276 IsEmpty]: Start isEmpty. Operand 5757 states and 15162 transitions. [2021-03-10 17:53:19,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:53:19,775 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:19,775 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:19,775 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-03-10 17:53:19,775 INFO L428 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]=== [2021-03-10 17:53:19,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:19,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1920490693, now seen corresponding path program 108 times [2021-03-10 17:53:19,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:19,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827673943] [2021-03-10 17:53:19,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:19,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:20,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:20,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827673943] [2021-03-10 17:53:20,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:20,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:20,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303583637] [2021-03-10 17:53:20,148 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:20,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:20,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:20,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:20,149 INFO L87 Difference]: Start difference. First operand 5757 states and 15162 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:20,934 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-03-10 17:53:21,132 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2021-03-10 17:53:21,326 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 55 [2021-03-10 17:53:21,542 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 60 [2021-03-10 17:53:21,775 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 66 [2021-03-10 17:53:21,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:21,937 INFO L93 Difference]: Finished difference Result 15988 states and 40858 transitions. [2021-03-10 17:53:21,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:53:21,937 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:53:21,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:21,953 INFO L225 Difference]: With dead ends: 15988 [2021-03-10 17:53:21,953 INFO L226 Difference]: Without dead ends: 15988 [2021-03-10 17:53:21,953 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1605.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:53:21,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15988 states. [2021-03-10 17:53:22,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15988 to 5697. [2021-03-10 17:53:22,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5697 states, 5695 states have (on average 2.6321334503950835) internal successors, (14990), 5696 states have internal predecessors, (14990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:22,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5697 states to 5697 states and 14990 transitions. [2021-03-10 17:53:22,067 INFO L78 Accepts]: Start accepts. Automaton has 5697 states and 14990 transitions. Word has length 108 [2021-03-10 17:53:22,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:22,067 INFO L480 AbstractCegarLoop]: Abstraction has 5697 states and 14990 transitions. [2021-03-10 17:53:22,067 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:22,067 INFO L276 IsEmpty]: Start isEmpty. Operand 5697 states and 14990 transitions. [2021-03-10 17:53:22,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:53:22,072 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:22,072 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:22,072 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-03-10 17:53:22,072 INFO L428 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]=== [2021-03-10 17:53:22,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:22,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1705581671, now seen corresponding path program 109 times [2021-03-10 17:53:22,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:22,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64716596] [2021-03-10 17:53:22,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:22,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:22,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:22,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64716596] [2021-03-10 17:53:22,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:22,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:22,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79137909] [2021-03-10 17:53:22,609 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:22,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:22,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:22,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:22,609 INFO L87 Difference]: Start difference. First operand 5697 states and 14990 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:23,405 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48 [2021-03-10 17:53:23,582 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2021-03-10 17:53:23,774 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2021-03-10 17:53:24,019 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2021-03-10 17:53:24,257 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2021-03-10 17:53:24,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:24,436 INFO L93 Difference]: Finished difference Result 16081 states and 41734 transitions. [2021-03-10 17:53:24,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:53:24,437 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:53:24,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:24,451 INFO L225 Difference]: With dead ends: 16081 [2021-03-10 17:53:24,451 INFO L226 Difference]: Without dead ends: 16081 [2021-03-10 17:53:24,451 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1749.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:53:24,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16081 states. [2021-03-10 17:53:24,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16081 to 5742. [2021-03-10 17:53:24,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5742 states, 5740 states have (on average 2.63397212543554) internal successors, (15119), 5741 states have internal predecessors, (15119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:24,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5742 states to 5742 states and 15119 transitions. [2021-03-10 17:53:24,576 INFO L78 Accepts]: Start accepts. Automaton has 5742 states and 15119 transitions. Word has length 108 [2021-03-10 17:53:24,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:24,576 INFO L480 AbstractCegarLoop]: Abstraction has 5742 states and 15119 transitions. [2021-03-10 17:53:24,576 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:24,576 INFO L276 IsEmpty]: Start isEmpty. Operand 5742 states and 15119 transitions. [2021-03-10 17:53:24,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:53:24,580 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:24,580 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:24,581 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-03-10 17:53:24,581 INFO L428 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]=== [2021-03-10 17:53:24,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:24,581 INFO L82 PathProgramCache]: Analyzing trace with hash 600702725, now seen corresponding path program 110 times [2021-03-10 17:53:24,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:24,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22569599] [2021-03-10 17:53:24,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:24,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:25,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:25,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22569599] [2021-03-10 17:53:25,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:25,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:25,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750714555] [2021-03-10 17:53:25,031 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:25,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:25,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:25,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:25,031 INFO L87 Difference]: Start difference. First operand 5742 states and 15119 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:25,744 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-03-10 17:53:25,896 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:53:26,098 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:53:26,302 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:53:26,513 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:53:26,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:26,668 INFO L93 Difference]: Finished difference Result 15561 states and 39976 transitions. [2021-03-10 17:53:26,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:53:26,669 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:53:26,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:26,682 INFO L225 Difference]: With dead ends: 15561 [2021-03-10 17:53:26,683 INFO L226 Difference]: Without dead ends: 15561 [2021-03-10 17:53:26,683 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1565.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:53:26,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15561 states. [2021-03-10 17:53:26,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15561 to 5757. [2021-03-10 17:53:26,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5757 states, 5755 states have (on average 2.6345786272806255) internal successors, (15162), 5756 states have internal predecessors, (15162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:26,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5757 states to 5757 states and 15162 transitions. [2021-03-10 17:53:26,779 INFO L78 Accepts]: Start accepts. Automaton has 5757 states and 15162 transitions. Word has length 108 [2021-03-10 17:53:26,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:26,779 INFO L480 AbstractCegarLoop]: Abstraction has 5757 states and 15162 transitions. [2021-03-10 17:53:26,780 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:26,780 INFO L276 IsEmpty]: Start isEmpty. Operand 5757 states and 15162 transitions. [2021-03-10 17:53:26,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:53:26,784 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:26,784 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:26,784 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-03-10 17:53:26,784 INFO L428 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]=== [2021-03-10 17:53:26,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:26,784 INFO L82 PathProgramCache]: Analyzing trace with hash -928455093, now seen corresponding path program 111 times [2021-03-10 17:53:26,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:26,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699977129] [2021-03-10 17:53:26,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:26,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:27,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:27,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699977129] [2021-03-10 17:53:27,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:27,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:27,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114615814] [2021-03-10 17:53:27,202 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:27,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:27,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:27,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:27,203 INFO L87 Difference]: Start difference. First operand 5757 states and 15162 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:27,822 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 41 [2021-03-10 17:53:27,981 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48 [2021-03-10 17:53:28,177 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2021-03-10 17:53:28,405 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2021-03-10 17:53:28,623 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2021-03-10 17:53:28,862 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2021-03-10 17:53:29,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:29,016 INFO L93 Difference]: Finished difference Result 15447 states and 39680 transitions. [2021-03-10 17:53:29,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:53:29,016 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:53:29,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:29,030 INFO L225 Difference]: With dead ends: 15447 [2021-03-10 17:53:29,030 INFO L226 Difference]: Without dead ends: 15447 [2021-03-10 17:53:29,030 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1705.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:53:29,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15447 states. [2021-03-10 17:53:29,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15447 to 5712. [2021-03-10 17:53:29,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5712 states, 5710 states have (on average 2.632749562171629) internal successors, (15033), 5711 states have internal predecessors, (15033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:29,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5712 states to 5712 states and 15033 transitions. [2021-03-10 17:53:29,125 INFO L78 Accepts]: Start accepts. Automaton has 5712 states and 15033 transitions. Word has length 108 [2021-03-10 17:53:29,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:29,125 INFO L480 AbstractCegarLoop]: Abstraction has 5712 states and 15033 transitions. [2021-03-10 17:53:29,125 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:29,125 INFO L276 IsEmpty]: Start isEmpty. Operand 5712 states and 15033 transitions. [2021-03-10 17:53:29,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:53:29,129 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:29,129 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:29,129 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-03-10 17:53:29,129 INFO L428 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]=== [2021-03-10 17:53:29,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:29,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1341070085, now seen corresponding path program 112 times [2021-03-10 17:53:29,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:29,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645027680] [2021-03-10 17:53:29,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:29,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:29,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:29,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645027680] [2021-03-10 17:53:29,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:29,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:29,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515637782] [2021-03-10 17:53:29,558 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:29,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:29,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:29,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:29,558 INFO L87 Difference]: Start difference. First operand 5712 states and 15033 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:30,337 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48 [2021-03-10 17:53:30,502 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2021-03-10 17:53:30,692 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2021-03-10 17:53:30,944 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2021-03-10 17:53:31,185 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2021-03-10 17:53:31,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:31,343 INFO L93 Difference]: Finished difference Result 12448 states and 32147 transitions. [2021-03-10 17:53:31,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:53:31,343 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:53:31,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:31,355 INFO L225 Difference]: With dead ends: 12448 [2021-03-10 17:53:31,355 INFO L226 Difference]: Without dead ends: 12448 [2021-03-10 17:53:31,355 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1664.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:53:31,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12448 states. [2021-03-10 17:53:31,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12448 to 5682. [2021-03-10 17:53:31,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5682 states, 5680 states have (on average 2.6315140845070424) internal successors, (14947), 5681 states have internal predecessors, (14947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:31,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5682 states to 5682 states and 14947 transitions. [2021-03-10 17:53:31,438 INFO L78 Accepts]: Start accepts. Automaton has 5682 states and 14947 transitions. Word has length 108 [2021-03-10 17:53:31,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:31,438 INFO L480 AbstractCegarLoop]: Abstraction has 5682 states and 14947 transitions. [2021-03-10 17:53:31,439 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:31,439 INFO L276 IsEmpty]: Start isEmpty. Operand 5682 states and 14947 transitions. [2021-03-10 17:53:31,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:53:31,442 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:31,442 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:31,442 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-03-10 17:53:31,443 INFO L428 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]=== [2021-03-10 17:53:31,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:31,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1356357829, now seen corresponding path program 113 times [2021-03-10 17:53:31,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:31,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468371384] [2021-03-10 17:53:31,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:31,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:31,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:31,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468371384] [2021-03-10 17:53:31,892 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:31,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:31,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615442074] [2021-03-10 17:53:31,893 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:31,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:31,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:31,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:31,893 INFO L87 Difference]: Start difference. First operand 5682 states and 14947 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:32,676 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-03-10 17:53:32,850 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2021-03-10 17:53:33,035 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2021-03-10 17:53:33,273 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 62 [2021-03-10 17:53:33,504 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 66 [2021-03-10 17:53:33,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:33,693 INFO L93 Difference]: Finished difference Result 16891 states and 43316 transitions. [2021-03-10 17:53:33,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:53:33,694 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:53:33,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:33,708 INFO L225 Difference]: With dead ends: 16891 [2021-03-10 17:53:33,709 INFO L226 Difference]: Without dead ends: 16891 [2021-03-10 17:53:33,709 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1597.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:53:33,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16891 states. [2021-03-10 17:53:33,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16891 to 5802. [2021-03-10 17:53:33,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5802 states, 5800 states have (on average 2.6363793103448274) internal successors, (15291), 5801 states have internal predecessors, (15291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:33,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5802 states to 5802 states and 15291 transitions. [2021-03-10 17:53:33,814 INFO L78 Accepts]: Start accepts. Automaton has 5802 states and 15291 transitions. Word has length 108 [2021-03-10 17:53:33,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:33,814 INFO L480 AbstractCegarLoop]: Abstraction has 5802 states and 15291 transitions. [2021-03-10 17:53:33,814 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:33,814 INFO L276 IsEmpty]: Start isEmpty. Operand 5802 states and 15291 transitions. [2021-03-10 17:53:33,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:53:33,818 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:33,818 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:33,818 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-03-10 17:53:33,818 INFO L428 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]=== [2021-03-10 17:53:33,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:33,819 INFO L82 PathProgramCache]: Analyzing trace with hash 251478883, now seen corresponding path program 114 times [2021-03-10 17:53:33,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:33,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683356748] [2021-03-10 17:53:33,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:33,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:34,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:34,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683356748] [2021-03-10 17:53:34,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:34,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:34,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616580163] [2021-03-10 17:53:34,221 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:34,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:34,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:34,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:34,222 INFO L87 Difference]: Start difference. First operand 5802 states and 15291 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:34,975 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:53:35,139 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:53:35,370 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:53:35,578 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:53:35,801 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:53:35,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:35,996 INFO L93 Difference]: Finished difference Result 19708 states and 50335 transitions. [2021-03-10 17:53:35,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:53:35,997 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:53:35,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:36,014 INFO L225 Difference]: With dead ends: 19708 [2021-03-10 17:53:36,014 INFO L226 Difference]: Without dead ends: 19708 [2021-03-10 17:53:36,014 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1570.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:53:36,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19708 states. [2021-03-10 17:53:36,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19708 to 5817. [2021-03-10 17:53:36,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5817 states, 5815 states have (on average 2.636973344797936) internal successors, (15334), 5816 states have internal predecessors, (15334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:36,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5817 states to 5817 states and 15334 transitions. [2021-03-10 17:53:36,135 INFO L78 Accepts]: Start accepts. Automaton has 5817 states and 15334 transitions. Word has length 108 [2021-03-10 17:53:36,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:36,135 INFO L480 AbstractCegarLoop]: Abstraction has 5817 states and 15334 transitions. [2021-03-10 17:53:36,136 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:36,136 INFO L276 IsEmpty]: Start isEmpty. Operand 5817 states and 15334 transitions. [2021-03-10 17:53:36,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:53:36,139 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:36,139 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:36,140 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-03-10 17:53:36,140 INFO L428 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]=== [2021-03-10 17:53:36,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:36,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1277678935, now seen corresponding path program 115 times [2021-03-10 17:53:36,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:36,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380837181] [2021-03-10 17:53:36,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:36,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:36,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:36,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380837181] [2021-03-10 17:53:36,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:36,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:36,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414454224] [2021-03-10 17:53:36,540 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:36,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:36,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:36,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:36,541 INFO L87 Difference]: Start difference. First operand 5817 states and 15334 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:37,298 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-03-10 17:53:37,467 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2021-03-10 17:53:37,685 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2021-03-10 17:53:37,892 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 62 [2021-03-10 17:53:38,122 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 66 [2021-03-10 17:53:38,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:38,282 INFO L93 Difference]: Finished difference Result 17937 states and 45636 transitions. [2021-03-10 17:53:38,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:53:38,282 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:53:38,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:38,298 INFO L225 Difference]: With dead ends: 17937 [2021-03-10 17:53:38,298 INFO L226 Difference]: Without dead ends: 17937 [2021-03-10 17:53:38,299 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1600.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:53:38,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17937 states. [2021-03-10 17:53:38,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17937 to 5772. [2021-03-10 17:53:38,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5772 states, 5770 states have (on average 2.6351819757365686) internal successors, (15205), 5771 states have internal predecessors, (15205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:38,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5772 states to 5772 states and 15205 transitions. [2021-03-10 17:53:38,406 INFO L78 Accepts]: Start accepts. Automaton has 5772 states and 15205 transitions. Word has length 108 [2021-03-10 17:53:38,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:38,406 INFO L480 AbstractCegarLoop]: Abstraction has 5772 states and 15205 transitions. [2021-03-10 17:53:38,406 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:38,406 INFO L276 IsEmpty]: Start isEmpty. Operand 5772 states and 15205 transitions. [2021-03-10 17:53:38,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:53:38,410 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:38,410 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:38,410 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-03-10 17:53:38,410 INFO L428 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]=== [2021-03-10 17:53:38,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:38,410 INFO L82 PathProgramCache]: Analyzing trace with hash -41283193, now seen corresponding path program 116 times [2021-03-10 17:53:38,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:38,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254684420] [2021-03-10 17:53:38,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:38,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:38,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:38,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254684420] [2021-03-10 17:53:38,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:38,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:38,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101763874] [2021-03-10 17:53:38,841 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:38,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:38,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:38,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:38,841 INFO L87 Difference]: Start difference. First operand 5772 states and 15205 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:39,590 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:53:39,781 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:53:39,961 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:53:40,165 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:53:40,399 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:53:40,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:40,591 INFO L93 Difference]: Finished difference Result 19671 states and 50341 transitions. [2021-03-10 17:53:40,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:53:40,592 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:53:40,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:40,610 INFO L225 Difference]: With dead ends: 19671 [2021-03-10 17:53:40,610 INFO L226 Difference]: Without dead ends: 19671 [2021-03-10 17:53:40,610 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1571.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:53:40,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19671 states. [2021-03-10 17:53:40,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19671 to 5802. [2021-03-10 17:53:40,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5802 states, 5800 states have (on average 2.6363793103448274) internal successors, (15291), 5801 states have internal predecessors, (15291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:40,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5802 states to 5802 states and 15291 transitions. [2021-03-10 17:53:40,733 INFO L78 Accepts]: Start accepts. Automaton has 5802 states and 15291 transitions. Word has length 108 [2021-03-10 17:53:40,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:40,733 INFO L480 AbstractCegarLoop]: Abstraction has 5802 states and 15291 transitions. [2021-03-10 17:53:40,733 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:40,733 INFO L276 IsEmpty]: Start isEmpty. Operand 5802 states and 15291 transitions. [2021-03-10 17:53:40,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:53:40,737 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:40,737 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:40,737 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-03-10 17:53:40,738 INFO L428 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]=== [2021-03-10 17:53:40,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:40,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1896689603, now seen corresponding path program 117 times [2021-03-10 17:53:40,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:40,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117241924] [2021-03-10 17:53:40,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:40,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:41,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:41,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117241924] [2021-03-10 17:53:41,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:41,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:41,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537729225] [2021-03-10 17:53:41,126 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:41,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:41,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:41,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:41,126 INFO L87 Difference]: Start difference. First operand 5802 states and 15291 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:41,904 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:53:42,102 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:53:42,285 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:53:42,528 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:53:42,744 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:53:42,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:42,933 INFO L93 Difference]: Finished difference Result 20587 states and 52318 transitions. [2021-03-10 17:53:42,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:53:42,934 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:53:42,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:42,952 INFO L225 Difference]: With dead ends: 20587 [2021-03-10 17:53:42,952 INFO L226 Difference]: Without dead ends: 20587 [2021-03-10 17:53:42,952 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1593.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:53:42,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20587 states. [2021-03-10 17:53:43,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20587 to 5787. [2021-03-10 17:53:43,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5787 states, 5785 states have (on average 2.635782195332757) internal successors, (15248), 5786 states have internal predecessors, (15248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:43,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5787 states to 5787 states and 15248 transitions. [2021-03-10 17:53:43,075 INFO L78 Accepts]: Start accepts. Automaton has 5787 states and 15248 transitions. Word has length 108 [2021-03-10 17:53:43,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:43,075 INFO L480 AbstractCegarLoop]: Abstraction has 5787 states and 15248 transitions. [2021-03-10 17:53:43,075 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:43,075 INFO L276 IsEmpty]: Start isEmpty. Operand 5787 states and 15248 transitions. [2021-03-10 17:53:43,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:53:43,079 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:43,079 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:43,079 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-03-10 17:53:43,079 INFO L428 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]=== [2021-03-10 17:53:43,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:43,080 INFO L82 PathProgramCache]: Analyzing trace with hash 684043167, now seen corresponding path program 118 times [2021-03-10 17:53:43,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:43,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283625673] [2021-03-10 17:53:43,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:43,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:43,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:43,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283625673] [2021-03-10 17:53:43,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:43,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:43,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877286662] [2021-03-10 17:53:43,464 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:43,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:43,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:43,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:43,465 INFO L87 Difference]: Start difference. First operand 5787 states and 15248 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:44,223 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:53:44,414 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:53:44,597 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:53:44,811 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:53:45,028 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:53:45,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:45,235 INFO L93 Difference]: Finished difference Result 22265 states and 56180 transitions. [2021-03-10 17:53:45,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:53:45,236 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:53:45,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:45,256 INFO L225 Difference]: With dead ends: 22265 [2021-03-10 17:53:45,256 INFO L226 Difference]: Without dead ends: 22265 [2021-03-10 17:53:45,256 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1541.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:53:45,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22265 states. [2021-03-10 17:53:45,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22265 to 5802. [2021-03-10 17:53:45,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5802 states, 5800 states have (on average 2.6363793103448274) internal successors, (15291), 5801 states have internal predecessors, (15291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:45,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5802 states to 5802 states and 15291 transitions. [2021-03-10 17:53:45,385 INFO L78 Accepts]: Start accepts. Automaton has 5802 states and 15291 transitions. Word has length 108 [2021-03-10 17:53:45,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:45,385 INFO L480 AbstractCegarLoop]: Abstraction has 5802 states and 15291 transitions. [2021-03-10 17:53:45,385 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:45,385 INFO L276 IsEmpty]: Start isEmpty. Operand 5802 states and 15291 transitions. [2021-03-10 17:53:45,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:53:45,389 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:45,389 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:45,389 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-03-10 17:53:45,389 INFO L428 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]=== [2021-03-10 17:53:45,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:45,389 INFO L82 PathProgramCache]: Analyzing trace with hash -845114651, now seen corresponding path program 119 times [2021-03-10 17:53:45,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:45,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272857934] [2021-03-10 17:53:45,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:45,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:45,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:45,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272857934] [2021-03-10 17:53:45,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:45,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:45,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823107109] [2021-03-10 17:53:45,804 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:45,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:45,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:45,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:45,804 INFO L87 Difference]: Start difference. First operand 5802 states and 15291 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:46,570 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-03-10 17:53:46,766 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2021-03-10 17:53:46,950 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 53 [2021-03-10 17:53:47,155 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 58 [2021-03-10 17:53:47,372 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 64 [2021-03-10 17:53:47,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:47,529 INFO L93 Difference]: Finished difference Result 19300 states and 48814 transitions. [2021-03-10 17:53:47,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:53:47,530 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:53:47,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:47,547 INFO L225 Difference]: With dead ends: 19300 [2021-03-10 17:53:47,547 INFO L226 Difference]: Without dead ends: 19300 [2021-03-10 17:53:47,547 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1578.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:53:47,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19300 states. [2021-03-10 17:53:47,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19300 to 5742. [2021-03-10 17:53:47,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5742 states, 5740 states have (on average 2.63397212543554) internal successors, (15119), 5741 states have internal predecessors, (15119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:47,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5742 states to 5742 states and 15119 transitions. [2021-03-10 17:53:47,661 INFO L78 Accepts]: Start accepts. Automaton has 5742 states and 15119 transitions. Word has length 108 [2021-03-10 17:53:47,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:47,661 INFO L480 AbstractCegarLoop]: Abstraction has 5742 states and 15119 transitions. [2021-03-10 17:53:47,662 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:47,662 INFO L276 IsEmpty]: Start isEmpty. Operand 5742 states and 15119 transitions. [2021-03-10 17:53:47,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:53:47,665 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:47,665 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:47,665 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-03-10 17:53:47,666 INFO L428 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]=== [2021-03-10 17:53:47,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:47,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1505072733, now seen corresponding path program 120 times [2021-03-10 17:53:47,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:47,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489386811] [2021-03-10 17:53:47,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:47,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:48,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:48,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489386811] [2021-03-10 17:53:48,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:48,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:48,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159319552] [2021-03-10 17:53:48,084 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:48,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:48,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:48,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:48,085 INFO L87 Difference]: Start difference. First operand 5742 states and 15119 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:48,826 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:53:48,986 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:53:49,160 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:53:49,378 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:53:49,620 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:53:49,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:49,776 INFO L93 Difference]: Finished difference Result 15398 states and 39728 transitions. [2021-03-10 17:53:49,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:53:49,777 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:53:49,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:49,790 INFO L225 Difference]: With dead ends: 15398 [2021-03-10 17:53:49,791 INFO L226 Difference]: Without dead ends: 15398 [2021-03-10 17:53:49,791 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1567.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:53:49,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15398 states. [2021-03-10 17:53:49,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15398 to 5802. [2021-03-10 17:53:49,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5802 states, 5800 states have (on average 2.6363793103448274) internal successors, (15291), 5801 states have internal predecessors, (15291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:49,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5802 states to 5802 states and 15291 transitions. [2021-03-10 17:53:49,888 INFO L78 Accepts]: Start accepts. Automaton has 5802 states and 15291 transitions. Word has length 108 [2021-03-10 17:53:49,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:49,888 INFO L480 AbstractCegarLoop]: Abstraction has 5802 states and 15291 transitions. [2021-03-10 17:53:49,888 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:49,888 INFO L276 IsEmpty]: Start isEmpty. Operand 5802 states and 15291 transitions. [2021-03-10 17:53:49,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:53:49,892 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:49,892 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:49,892 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-03-10 17:53:49,893 INFO L428 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]=== [2021-03-10 17:53:49,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:49,893 INFO L82 PathProgramCache]: Analyzing trace with hash 224066407, now seen corresponding path program 121 times [2021-03-10 17:53:49,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:49,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960676198] [2021-03-10 17:53:49,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:49,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:50,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:50,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960676198] [2021-03-10 17:53:50,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:50,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:50,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599711264] [2021-03-10 17:53:50,296 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:50,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:50,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:50,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:50,296 INFO L87 Difference]: Start difference. First operand 5802 states and 15291 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:51,062 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:53:51,226 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:53:51,438 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:53:51,642 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:53:51,875 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:53:52,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:52,071 INFO L93 Difference]: Finished difference Result 17987 states and 46259 transitions. [2021-03-10 17:53:52,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:53:52,071 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:53:52,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:52,088 INFO L225 Difference]: With dead ends: 17987 [2021-03-10 17:53:52,089 INFO L226 Difference]: Without dead ends: 17987 [2021-03-10 17:53:52,089 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1572.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:53:52,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17987 states. [2021-03-10 17:53:52,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17987 to 5817. [2021-03-10 17:53:52,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5817 states, 5815 states have (on average 2.636973344797936) internal successors, (15334), 5816 states have internal predecessors, (15334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:52,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5817 states to 5817 states and 15334 transitions. [2021-03-10 17:53:52,214 INFO L78 Accepts]: Start accepts. Automaton has 5817 states and 15334 transitions. Word has length 108 [2021-03-10 17:53:52,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:52,214 INFO L480 AbstractCegarLoop]: Abstraction has 5817 states and 15334 transitions. [2021-03-10 17:53:52,214 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:52,215 INFO L276 IsEmpty]: Start isEmpty. Operand 5817 states and 15334 transitions. [2021-03-10 17:53:52,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:53:52,219 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:52,219 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:52,219 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-03-10 17:53:52,220 INFO L428 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]=== [2021-03-10 17:53:52,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:52,220 INFO L82 PathProgramCache]: Analyzing trace with hash -2132928093, now seen corresponding path program 122 times [2021-03-10 17:53:52,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:52,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268373410] [2021-03-10 17:53:52,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:52,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:52,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:52,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268373410] [2021-03-10 17:53:52,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:52,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:52,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030026685] [2021-03-10 17:53:52,654 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:52,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:52,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:52,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:52,654 INFO L87 Difference]: Start difference. First operand 5817 states and 15334 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:53,463 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:53:53,629 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:53:53,848 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:53:54,063 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:53:54,281 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:53:54,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:54,452 INFO L93 Difference]: Finished difference Result 16390 states and 41894 transitions. [2021-03-10 17:53:54,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:53:54,453 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:53:54,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:54,468 INFO L225 Difference]: With dead ends: 16390 [2021-03-10 17:53:54,468 INFO L226 Difference]: Without dead ends: 16390 [2021-03-10 17:53:54,468 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1627.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:53:54,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16390 states. [2021-03-10 17:53:54,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16390 to 5772. [2021-03-10 17:53:54,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5772 states, 5770 states have (on average 2.6351819757365686) internal successors, (15205), 5771 states have internal predecessors, (15205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:54,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5772 states to 5772 states and 15205 transitions. [2021-03-10 17:53:54,573 INFO L78 Accepts]: Start accepts. Automaton has 5772 states and 15205 transitions. Word has length 108 [2021-03-10 17:53:54,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:54,573 INFO L480 AbstractCegarLoop]: Abstraction has 5772 states and 15205 transitions. [2021-03-10 17:53:54,573 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:54,573 INFO L276 IsEmpty]: Start isEmpty. Operand 5772 states and 15205 transitions. [2021-03-10 17:53:54,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:53:54,577 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:54,577 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:54,577 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-03-10 17:53:54,577 INFO L428 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]=== [2021-03-10 17:53:54,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:54,578 INFO L82 PathProgramCache]: Analyzing trace with hash -16305683, now seen corresponding path program 123 times [2021-03-10 17:53:54,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:54,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682250152] [2021-03-10 17:53:54,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:54,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:54,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:54,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682250152] [2021-03-10 17:53:54,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:54,983 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:54,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952050926] [2021-03-10 17:53:54,983 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:54,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:54,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:54,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:54,983 INFO L87 Difference]: Start difference. First operand 5772 states and 15205 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:55,748 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:53:55,935 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:53:56,121 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:53:56,322 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:53:56,546 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:53:56,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:56,735 INFO L93 Difference]: Finished difference Result 17775 states and 45140 transitions. [2021-03-10 17:53:56,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:53:56,736 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:53:56,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:56,751 INFO L225 Difference]: With dead ends: 17775 [2021-03-10 17:53:56,751 INFO L226 Difference]: Without dead ends: 17775 [2021-03-10 17:53:56,752 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1567.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:53:56,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17775 states. [2021-03-10 17:53:56,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17775 to 5802. [2021-03-10 17:53:56,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5802 states, 5800 states have (on average 2.6363793103448274) internal successors, (15291), 5801 states have internal predecessors, (15291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:56,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5802 states to 5802 states and 15291 transitions. [2021-03-10 17:53:56,879 INFO L78 Accepts]: Start accepts. Automaton has 5802 states and 15291 transitions. Word has length 108 [2021-03-10 17:53:56,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:56,879 INFO L480 AbstractCegarLoop]: Abstraction has 5802 states and 15291 transitions. [2021-03-10 17:53:56,879 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:56,879 INFO L276 IsEmpty]: Start isEmpty. Operand 5802 states and 15291 transitions. [2021-03-10 17:53:56,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:53:56,884 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:56,884 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:56,884 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-03-10 17:53:56,884 INFO L428 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]=== [2021-03-10 17:53:56,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:56,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1921667113, now seen corresponding path program 124 times [2021-03-10 17:53:56,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:56,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550584177] [2021-03-10 17:53:56,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:56,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:57,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:57,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550584177] [2021-03-10 17:53:57,280 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:57,280 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:57,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452326046] [2021-03-10 17:53:57,280 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:57,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:57,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:57,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:57,281 INFO L87 Difference]: Start difference. First operand 5802 states and 15291 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:58,027 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:53:58,204 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:53:58,382 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:53:58,591 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:53:58,800 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:53:58,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:58,972 INFO L93 Difference]: Finished difference Result 18691 states and 47117 transitions. [2021-03-10 17:53:58,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:53:58,972 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:53:58,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:58,989 INFO L225 Difference]: With dead ends: 18691 [2021-03-10 17:53:58,989 INFO L226 Difference]: Without dead ends: 18691 [2021-03-10 17:53:58,989 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1559.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:53:59,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18691 states. [2021-03-10 17:53:59,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18691 to 5787. [2021-03-10 17:53:59,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5787 states, 5785 states have (on average 2.635782195332757) internal successors, (15248), 5786 states have internal predecessors, (15248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:59,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5787 states to 5787 states and 15248 transitions. [2021-03-10 17:53:59,102 INFO L78 Accepts]: Start accepts. Automaton has 5787 states and 15248 transitions. Word has length 108 [2021-03-10 17:53:59,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:59,102 INFO L480 AbstractCegarLoop]: Abstraction has 5787 states and 15248 transitions. [2021-03-10 17:53:59,102 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:59,102 INFO L276 IsEmpty]: Start isEmpty. Operand 5787 states and 15248 transitions. [2021-03-10 17:53:59,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:53:59,106 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:59,106 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:59,106 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-03-10 17:53:59,106 INFO L428 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]=== [2021-03-10 17:53:59,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:59,106 INFO L82 PathProgramCache]: Analyzing trace with hash 709020677, now seen corresponding path program 125 times [2021-03-10 17:53:59,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:59,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587668852] [2021-03-10 17:53:59,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:59,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:59,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:59,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587668852] [2021-03-10 17:53:59,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:59,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:59,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104107639] [2021-03-10 17:53:59,507 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:59,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:59,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:59,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:59,507 INFO L87 Difference]: Start difference. First operand 5787 states and 15248 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:00,282 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:54:00,491 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:54:00,678 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:54:00,890 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:54:01,108 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:54:01,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:01,296 INFO L93 Difference]: Finished difference Result 17955 states and 45439 transitions. [2021-03-10 17:54:01,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:54:01,297 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:54:01,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:01,313 INFO L225 Difference]: With dead ends: 17955 [2021-03-10 17:54:01,313 INFO L226 Difference]: Without dead ends: 17955 [2021-03-10 17:54:01,313 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1585.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:54:01,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17955 states. [2021-03-10 17:54:01,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17955 to 5802. [2021-03-10 17:54:01,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5802 states, 5800 states have (on average 2.6363793103448274) internal successors, (15291), 5801 states have internal predecessors, (15291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:01,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5802 states to 5802 states and 15291 transitions. [2021-03-10 17:54:01,425 INFO L78 Accepts]: Start accepts. Automaton has 5802 states and 15291 transitions. Word has length 108 [2021-03-10 17:54:01,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:01,425 INFO L480 AbstractCegarLoop]: Abstraction has 5802 states and 15291 transitions. [2021-03-10 17:54:01,425 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:01,425 INFO L276 IsEmpty]: Start isEmpty. Operand 5802 states and 15291 transitions. [2021-03-10 17:54:01,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:54:01,429 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:01,429 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:01,429 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-03-10 17:54:01,429 INFO L428 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]=== [2021-03-10 17:54:01,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:01,430 INFO L82 PathProgramCache]: Analyzing trace with hash -820137141, now seen corresponding path program 126 times [2021-03-10 17:54:01,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:01,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865234165] [2021-03-10 17:54:01,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:01,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:01,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:01,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865234165] [2021-03-10 17:54:01,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:01,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:54:01,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066482052] [2021-03-10 17:54:01,824 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:54:01,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:01,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:54:01,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:54:01,824 INFO L87 Difference]: Start difference. First operand 5802 states and 15291 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:02,623 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2021-03-10 17:54:02,818 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2021-03-10 17:54:03,020 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2021-03-10 17:54:03,234 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2021-03-10 17:54:03,463 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 66 [2021-03-10 17:54:03,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:03,621 INFO L93 Difference]: Finished difference Result 14990 states and 38073 transitions. [2021-03-10 17:54:03,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:54:03,621 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:54:03,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:03,634 INFO L225 Difference]: With dead ends: 14990 [2021-03-10 17:54:03,634 INFO L226 Difference]: Without dead ends: 14990 [2021-03-10 17:54:03,634 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1611.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:54:03,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14990 states. [2021-03-10 17:54:03,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14990 to 5652. [2021-03-10 17:54:03,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5652 states, 5650 states have (on average 2.630265486725664) internal successors, (14861), 5651 states have internal predecessors, (14861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:03,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5652 states to 5652 states and 14861 transitions. [2021-03-10 17:54:03,731 INFO L78 Accepts]: Start accepts. Automaton has 5652 states and 14861 transitions. Word has length 108 [2021-03-10 17:54:03,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:03,731 INFO L480 AbstractCegarLoop]: Abstraction has 5652 states and 14861 transitions. [2021-03-10 17:54:03,731 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:03,731 INFO L276 IsEmpty]: Start isEmpty. Operand 5652 states and 14861 transitions. [2021-03-10 17:54:03,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:54:03,735 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:03,735 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:03,735 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-03-10 17:54:03,735 INFO L428 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]=== [2021-03-10 17:54:03,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:03,735 INFO L82 PathProgramCache]: Analyzing trace with hash 97373731, now seen corresponding path program 127 times [2021-03-10 17:54:03,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:03,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336598186] [2021-03-10 17:54:03,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:03,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:04,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:04,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336598186] [2021-03-10 17:54:04,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:04,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:54:04,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734301969] [2021-03-10 17:54:04,186 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:54:04,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:04,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:54:04,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:54:04,187 INFO L87 Difference]: Start difference. First operand 5652 states and 14861 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:04,987 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-03-10 17:54:05,167 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2021-03-10 17:54:05,359 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2021-03-10 17:54:05,604 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 62 [2021-03-10 17:54:05,837 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 66 [2021-03-10 17:54:06,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:06,029 INFO L93 Difference]: Finished difference Result 17548 states and 45092 transitions. [2021-03-10 17:54:06,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:54:06,030 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:54:06,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:06,045 INFO L225 Difference]: With dead ends: 17548 [2021-03-10 17:54:06,045 INFO L226 Difference]: Without dead ends: 17548 [2021-03-10 17:54:06,046 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1626.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:54:06,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17548 states. [2021-03-10 17:54:06,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17548 to 5802. [2021-03-10 17:54:06,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5802 states, 5800 states have (on average 2.6363793103448274) internal successors, (15291), 5801 states have internal predecessors, (15291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:06,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5802 states to 5802 states and 15291 transitions. [2021-03-10 17:54:06,151 INFO L78 Accepts]: Start accepts. Automaton has 5802 states and 15291 transitions. Word has length 108 [2021-03-10 17:54:06,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:06,151 INFO L480 AbstractCegarLoop]: Abstraction has 5802 states and 15291 transitions. [2021-03-10 17:54:06,151 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:06,151 INFO L276 IsEmpty]: Start isEmpty. Operand 5802 states and 15291 transitions. [2021-03-10 17:54:06,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:54:06,155 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:06,155 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:06,155 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2021-03-10 17:54:06,155 INFO L428 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]=== [2021-03-10 17:54:06,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:06,155 INFO L82 PathProgramCache]: Analyzing trace with hash -1007505215, now seen corresponding path program 128 times [2021-03-10 17:54:06,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:06,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742995935] [2021-03-10 17:54:06,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:06,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:06,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:06,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742995935] [2021-03-10 17:54:06,643 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:06,643 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:54:06,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020705159] [2021-03-10 17:54:06,643 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:54:06,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:06,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:54:06,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:54:06,643 INFO L87 Difference]: Start difference. First operand 5802 states and 15291 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:07,387 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:54:07,546 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:54:07,770 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:54:07,975 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:54:08,192 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:54:08,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:08,371 INFO L93 Difference]: Finished difference Result 20365 states and 52111 transitions. [2021-03-10 17:54:08,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:54:08,372 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:54:08,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:08,390 INFO L225 Difference]: With dead ends: 20365 [2021-03-10 17:54:08,390 INFO L226 Difference]: Without dead ends: 20365 [2021-03-10 17:54:08,390 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1644.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:54:08,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20365 states. [2021-03-10 17:54:08,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20365 to 5817. [2021-03-10 17:54:08,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5817 states, 5815 states have (on average 2.636973344797936) internal successors, (15334), 5816 states have internal predecessors, (15334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:08,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5817 states to 5817 states and 15334 transitions. [2021-03-10 17:54:08,511 INFO L78 Accepts]: Start accepts. Automaton has 5817 states and 15334 transitions. Word has length 108 [2021-03-10 17:54:08,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:08,511 INFO L480 AbstractCegarLoop]: Abstraction has 5817 states and 15334 transitions. [2021-03-10 17:54:08,511 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:08,511 INFO L276 IsEmpty]: Start isEmpty. Operand 5817 states and 15334 transitions. [2021-03-10 17:54:08,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:54:08,515 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:08,515 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:08,515 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-03-10 17:54:08,515 INFO L428 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]=== [2021-03-10 17:54:08,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:08,515 INFO L82 PathProgramCache]: Analyzing trace with hash 1758304263, now seen corresponding path program 129 times [2021-03-10 17:54:08,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:08,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168045872] [2021-03-10 17:54:08,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:08,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:08,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:08,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168045872] [2021-03-10 17:54:08,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:08,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:54:08,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548693618] [2021-03-10 17:54:08,931 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:54:08,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:08,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:54:08,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:54:08,931 INFO L87 Difference]: Start difference. First operand 5817 states and 15334 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:09,702 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-03-10 17:54:09,873 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2021-03-10 17:54:10,094 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2021-03-10 17:54:10,313 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 62 [2021-03-10 17:54:10,557 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 66 [2021-03-10 17:54:10,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:10,735 INFO L93 Difference]: Finished difference Result 18594 states and 47412 transitions. [2021-03-10 17:54:10,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:54:10,736 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:54:10,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:10,753 INFO L225 Difference]: With dead ends: 18594 [2021-03-10 17:54:10,753 INFO L226 Difference]: Without dead ends: 18594 [2021-03-10 17:54:10,753 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1640.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:54:10,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18594 states. [2021-03-10 17:54:10,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18594 to 5772. [2021-03-10 17:54:10,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5772 states, 5770 states have (on average 2.6351819757365686) internal successors, (15205), 5771 states have internal predecessors, (15205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:10,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5772 states to 5772 states and 15205 transitions. [2021-03-10 17:54:10,880 INFO L78 Accepts]: Start accepts. Automaton has 5772 states and 15205 transitions. Word has length 108 [2021-03-10 17:54:10,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:10,880 INFO L480 AbstractCegarLoop]: Abstraction has 5772 states and 15205 transitions. [2021-03-10 17:54:10,880 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:10,880 INFO L276 IsEmpty]: Start isEmpty. Operand 5772 states and 15205 transitions. [2021-03-10 17:54:10,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:54:10,885 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:10,885 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:10,885 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-03-10 17:54:10,885 INFO L428 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]=== [2021-03-10 17:54:10,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:10,885 INFO L82 PathProgramCache]: Analyzing trace with hash -1300267291, now seen corresponding path program 130 times [2021-03-10 17:54:10,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:10,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391806590] [2021-03-10 17:54:10,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:10,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:11,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:11,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391806590] [2021-03-10 17:54:11,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:11,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:54:11,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113025151] [2021-03-10 17:54:11,376 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:54:11,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:11,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:54:11,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:54:11,376 INFO L87 Difference]: Start difference. First operand 5772 states and 15205 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:12,151 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:54:12,340 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:54:12,522 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:54:12,719 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:54:12,943 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:54:13,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:13,114 INFO L93 Difference]: Finished difference Result 20328 states and 52117 transitions. [2021-03-10 17:54:13,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:54:13,114 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:54:13,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:13,132 INFO L225 Difference]: With dead ends: 20328 [2021-03-10 17:54:13,132 INFO L226 Difference]: Without dead ends: 20328 [2021-03-10 17:54:13,133 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1658.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:54:13,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20328 states. [2021-03-10 17:54:13,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20328 to 5802. [2021-03-10 17:54:13,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5802 states, 5800 states have (on average 2.6363793103448274) internal successors, (15291), 5801 states have internal predecessors, (15291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:13,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5802 states to 5802 states and 15291 transitions. [2021-03-10 17:54:13,253 INFO L78 Accepts]: Start accepts. Automaton has 5802 states and 15291 transitions. Word has length 108 [2021-03-10 17:54:13,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:13,253 INFO L480 AbstractCegarLoop]: Abstraction has 5802 states and 15291 transitions. [2021-03-10 17:54:13,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:13,253 INFO L276 IsEmpty]: Start isEmpty. Operand 5802 states and 15291 transitions. [2021-03-10 17:54:13,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:54:13,257 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:13,257 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:13,257 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-03-10 17:54:13,258 INFO L428 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]=== [2021-03-10 17:54:13,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:13,258 INFO L82 PathProgramCache]: Analyzing trace with hash 637705505, now seen corresponding path program 131 times [2021-03-10 17:54:13,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:13,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336340915] [2021-03-10 17:54:13,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:13,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:13,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:13,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336340915] [2021-03-10 17:54:13,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:13,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:54:13,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669342399] [2021-03-10 17:54:13,653 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:54:13,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:13,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:54:13,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:54:13,654 INFO L87 Difference]: Start difference. First operand 5802 states and 15291 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:14,426 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:54:14,619 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:54:14,801 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:54:15,049 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:54:15,268 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:54:15,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:15,461 INFO L93 Difference]: Finished difference Result 21244 states and 54094 transitions. [2021-03-10 17:54:15,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:54:15,462 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:54:15,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:15,481 INFO L225 Difference]: With dead ends: 21244 [2021-03-10 17:54:15,481 INFO L226 Difference]: Without dead ends: 21244 [2021-03-10 17:54:15,481 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1593.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:54:15,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21244 states. [2021-03-10 17:54:15,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21244 to 5787. [2021-03-10 17:54:15,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5787 states, 5785 states have (on average 2.635782195332757) internal successors, (15248), 5786 states have internal predecessors, (15248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:15,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5787 states to 5787 states and 15248 transitions. [2021-03-10 17:54:15,606 INFO L78 Accepts]: Start accepts. Automaton has 5787 states and 15248 transitions. Word has length 108 [2021-03-10 17:54:15,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:15,606 INFO L480 AbstractCegarLoop]: Abstraction has 5787 states and 15248 transitions. [2021-03-10 17:54:15,606 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:15,607 INFO L276 IsEmpty]: Start isEmpty. Operand 5787 states and 15248 transitions. [2021-03-10 17:54:15,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:54:15,611 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:15,611 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:15,611 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-03-10 17:54:15,611 INFO L428 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]=== [2021-03-10 17:54:15,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:15,611 INFO L82 PathProgramCache]: Analyzing trace with hash -574940931, now seen corresponding path program 132 times [2021-03-10 17:54:15,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:15,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007041447] [2021-03-10 17:54:15,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:15,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:16,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:16,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007041447] [2021-03-10 17:54:16,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:16,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:54:16,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616705557] [2021-03-10 17:54:16,005 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:54:16,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:16,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:54:16,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:54:16,005 INFO L87 Difference]: Start difference. First operand 5787 states and 15248 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:16,756 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:54:16,938 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:54:17,119 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:54:17,334 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:54:17,548 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:54:17,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:17,733 INFO L93 Difference]: Finished difference Result 22922 states and 57956 transitions. [2021-03-10 17:54:17,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:54:17,734 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:54:17,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:17,753 INFO L225 Difference]: With dead ends: 22922 [2021-03-10 17:54:17,753 INFO L226 Difference]: Without dead ends: 22922 [2021-03-10 17:54:17,754 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1568.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:54:17,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22922 states. [2021-03-10 17:54:17,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22922 to 5802. [2021-03-10 17:54:17,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5802 states, 5800 states have (on average 2.6363793103448274) internal successors, (15291), 5801 states have internal predecessors, (15291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:17,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5802 states to 5802 states and 15291 transitions. [2021-03-10 17:54:17,883 INFO L78 Accepts]: Start accepts. Automaton has 5802 states and 15291 transitions. Word has length 108 [2021-03-10 17:54:17,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:17,883 INFO L480 AbstractCegarLoop]: Abstraction has 5802 states and 15291 transitions. [2021-03-10 17:54:17,884 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:17,884 INFO L276 IsEmpty]: Start isEmpty. Operand 5802 states and 15291 transitions. [2021-03-10 17:54:17,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:54:17,887 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:17,887 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:17,887 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-03-10 17:54:17,888 INFO L428 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]=== [2021-03-10 17:54:17,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:17,888 INFO L82 PathProgramCache]: Analyzing trace with hash -2104098749, now seen corresponding path program 133 times [2021-03-10 17:54:17,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:17,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600075266] [2021-03-10 17:54:17,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:17,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:18,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:18,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600075266] [2021-03-10 17:54:18,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:18,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:54:18,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032353291] [2021-03-10 17:54:18,305 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:54:18,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:18,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:54:18,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:54:18,305 INFO L87 Difference]: Start difference. First operand 5802 states and 15291 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:19,104 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-03-10 17:54:19,309 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2021-03-10 17:54:19,500 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 53 [2021-03-10 17:54:19,713 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 58 [2021-03-10 17:54:19,935 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 64 [2021-03-10 17:54:20,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:20,115 INFO L93 Difference]: Finished difference Result 19957 states and 50590 transitions. [2021-03-10 17:54:20,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:54:20,116 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:54:20,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:20,134 INFO L225 Difference]: With dead ends: 19957 [2021-03-10 17:54:20,134 INFO L226 Difference]: Without dead ends: 19957 [2021-03-10 17:54:20,134 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1591.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:54:20,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19957 states. [2021-03-10 17:54:20,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19957 to 5742. [2021-03-10 17:54:20,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5742 states, 5740 states have (on average 2.63397212543554) internal successors, (15119), 5741 states have internal predecessors, (15119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:20,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5742 states to 5742 states and 15119 transitions. [2021-03-10 17:54:20,252 INFO L78 Accepts]: Start accepts. Automaton has 5742 states and 15119 transitions. Word has length 108 [2021-03-10 17:54:20,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:20,252 INFO L480 AbstractCegarLoop]: Abstraction has 5742 states and 15119 transitions. [2021-03-10 17:54:20,252 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:20,252 INFO L276 IsEmpty]: Start isEmpty. Operand 5742 states and 15119 transitions. [2021-03-10 17:54:20,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:54:20,256 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:20,256 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:20,256 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-03-10 17:54:20,256 INFO L428 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]=== [2021-03-10 17:54:20,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:20,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1530910465, now seen corresponding path program 134 times [2021-03-10 17:54:20,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:20,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343169121] [2021-03-10 17:54:20,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:20,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:20,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:20,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343169121] [2021-03-10 17:54:20,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:20,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:54:20,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181927220] [2021-03-10 17:54:20,668 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:54:20,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:20,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:54:20,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:54:20,669 INFO L87 Difference]: Start difference. First operand 5742 states and 15119 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:21,458 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:54:21,624 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:54:21,809 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:54:22,049 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:54:22,309 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:54:22,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:22,517 INFO L93 Difference]: Finished difference Result 20932 states and 53763 transitions. [2021-03-10 17:54:22,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:54:22,518 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:54:22,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:22,537 INFO L225 Difference]: With dead ends: 20932 [2021-03-10 17:54:22,537 INFO L226 Difference]: Without dead ends: 20932 [2021-03-10 17:54:22,538 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1614.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:54:22,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20932 states. [2021-03-10 17:54:22,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20932 to 5802. [2021-03-10 17:54:22,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5802 states, 5800 states have (on average 2.6363793103448274) internal successors, (15291), 5801 states have internal predecessors, (15291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:22,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5802 states to 5802 states and 15291 transitions. [2021-03-10 17:54:22,675 INFO L78 Accepts]: Start accepts. Automaton has 5802 states and 15291 transitions. Word has length 108 [2021-03-10 17:54:22,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:22,675 INFO L480 AbstractCegarLoop]: Abstraction has 5802 states and 15291 transitions. [2021-03-10 17:54:22,675 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:22,675 INFO L276 IsEmpty]: Start isEmpty. Operand 5802 states and 15291 transitions. [2021-03-10 17:54:22,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:54:22,680 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:22,680 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:22,680 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-03-10 17:54:22,680 INFO L428 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]=== [2021-03-10 17:54:22,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:22,681 INFO L82 PathProgramCache]: Analyzing trace with hash -1034917691, now seen corresponding path program 135 times [2021-03-10 17:54:22,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:22,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871645909] [2021-03-10 17:54:22,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:22,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:23,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:23,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871645909] [2021-03-10 17:54:23,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:23,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:54:23,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618306984] [2021-03-10 17:54:23,106 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:54:23,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:23,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:54:23,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:54:23,106 INFO L87 Difference]: Start difference. First operand 5802 states and 15291 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:23,929 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:54:24,099 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:54:24,318 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:54:24,522 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:54:24,753 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:54:24,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:24,964 INFO L93 Difference]: Finished difference Result 23521 states and 60294 transitions. [2021-03-10 17:54:24,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:54:24,965 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:54:24,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:24,985 INFO L225 Difference]: With dead ends: 23521 [2021-03-10 17:54:24,986 INFO L226 Difference]: Without dead ends: 23521 [2021-03-10 17:54:24,986 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1629.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:54:25,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23521 states. [2021-03-10 17:54:25,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23521 to 5817. [2021-03-10 17:54:25,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5817 states, 5815 states have (on average 2.636973344797936) internal successors, (15334), 5816 states have internal predecessors, (15334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:25,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5817 states to 5817 states and 15334 transitions. [2021-03-10 17:54:25,123 INFO L78 Accepts]: Start accepts. Automaton has 5817 states and 15334 transitions. Word has length 108 [2021-03-10 17:54:25,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:25,123 INFO L480 AbstractCegarLoop]: Abstraction has 5817 states and 15334 transitions. [2021-03-10 17:54:25,123 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:25,123 INFO L276 IsEmpty]: Start isEmpty. Operand 5817 states and 15334 transitions. [2021-03-10 17:54:25,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:54:25,127 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:25,127 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:25,127 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-03-10 17:54:25,127 INFO L428 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]=== [2021-03-10 17:54:25,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:25,128 INFO L82 PathProgramCache]: Analyzing trace with hash 903055105, now seen corresponding path program 136 times [2021-03-10 17:54:25,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:25,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800595664] [2021-03-10 17:54:25,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:25,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:25,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:25,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800595664] [2021-03-10 17:54:25,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:25,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:54:25,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834949074] [2021-03-10 17:54:25,585 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:54:25,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:25,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:54:25,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:54:25,585 INFO L87 Difference]: Start difference. First operand 5817 states and 15334 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:26,363 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:54:26,523 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:54:26,731 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:54:26,945 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:54:27,162 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:54:27,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:27,337 INFO L93 Difference]: Finished difference Result 21924 states and 55929 transitions. [2021-03-10 17:54:27,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:54:27,338 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:54:27,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:27,357 INFO L225 Difference]: With dead ends: 21924 [2021-03-10 17:54:27,357 INFO L226 Difference]: Without dead ends: 21924 [2021-03-10 17:54:27,357 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1621.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:54:27,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21924 states. [2021-03-10 17:54:27,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21924 to 5772. [2021-03-10 17:54:27,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5772 states, 5770 states have (on average 2.6351819757365686) internal successors, (15205), 5771 states have internal predecessors, (15205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:27,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5772 states to 5772 states and 15205 transitions. [2021-03-10 17:54:27,484 INFO L78 Accepts]: Start accepts. Automaton has 5772 states and 15205 transitions. Word has length 108 [2021-03-10 17:54:27,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:27,484 INFO L480 AbstractCegarLoop]: Abstraction has 5772 states and 15205 transitions. [2021-03-10 17:54:27,485 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:27,485 INFO L276 IsEmpty]: Start isEmpty. Operand 5772 states and 15205 transitions. [2021-03-10 17:54:27,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:54:27,489 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:27,489 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:27,489 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-03-10 17:54:27,489 INFO L428 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]=== [2021-03-10 17:54:27,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:27,489 INFO L82 PathProgramCache]: Analyzing trace with hash -1275289781, now seen corresponding path program 137 times [2021-03-10 17:54:27,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:27,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016606335] [2021-03-10 17:54:27,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:27,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:27,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:27,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016606335] [2021-03-10 17:54:27,894 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:27,895 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:54:27,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701732542] [2021-03-10 17:54:27,895 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:54:27,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:27,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:54:27,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:54:27,895 INFO L87 Difference]: Start difference. First operand 5772 states and 15205 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:28,666 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:54:28,850 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:54:29,033 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:54:29,233 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:54:29,458 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:54:29,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:29,676 INFO L93 Difference]: Finished difference Result 23309 states and 59175 transitions. [2021-03-10 17:54:29,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:54:29,676 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:54:29,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:29,696 INFO L225 Difference]: With dead ends: 23309 [2021-03-10 17:54:29,696 INFO L226 Difference]: Without dead ends: 23309 [2021-03-10 17:54:29,696 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1578.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:54:29,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23309 states. [2021-03-10 17:54:29,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23309 to 5802. [2021-03-10 17:54:29,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5802 states, 5800 states have (on average 2.6363793103448274) internal successors, (15291), 5801 states have internal predecessors, (15291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:29,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5802 states to 5802 states and 15291 transitions. [2021-03-10 17:54:29,828 INFO L78 Accepts]: Start accepts. Automaton has 5802 states and 15291 transitions. Word has length 108 [2021-03-10 17:54:29,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:29,828 INFO L480 AbstractCegarLoop]: Abstraction has 5802 states and 15291 transitions. [2021-03-10 17:54:29,828 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:29,828 INFO L276 IsEmpty]: Start isEmpty. Operand 5802 states and 15291 transitions. [2021-03-10 17:54:29,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:54:29,832 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:29,832 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:29,832 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-03-10 17:54:29,832 INFO L428 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]=== [2021-03-10 17:54:29,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:29,832 INFO L82 PathProgramCache]: Analyzing trace with hash 662683015, now seen corresponding path program 138 times [2021-03-10 17:54:29,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:29,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104904420] [2021-03-10 17:54:29,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:29,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:30,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:30,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104904420] [2021-03-10 17:54:30,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:30,236 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:54:30,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664015260] [2021-03-10 17:54:30,236 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:54:30,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:30,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:54:30,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:54:30,236 INFO L87 Difference]: Start difference. First operand 5802 states and 15291 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:31,025 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:54:31,223 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:54:31,411 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:54:31,635 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:54:31,856 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:54:32,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:32,092 INFO L93 Difference]: Finished difference Result 24225 states and 61152 transitions. [2021-03-10 17:54:32,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:54:32,093 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:54:32,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:32,115 INFO L225 Difference]: With dead ends: 24225 [2021-03-10 17:54:32,115 INFO L226 Difference]: Without dead ends: 24225 [2021-03-10 17:54:32,116 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1591.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:54:32,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24225 states. [2021-03-10 17:54:32,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24225 to 5787. [2021-03-10 17:54:32,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5787 states, 5785 states have (on average 2.635782195332757) internal successors, (15248), 5786 states have internal predecessors, (15248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:32,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5787 states to 5787 states and 15248 transitions. [2021-03-10 17:54:32,255 INFO L78 Accepts]: Start accepts. Automaton has 5787 states and 15248 transitions. Word has length 108 [2021-03-10 17:54:32,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:32,255 INFO L480 AbstractCegarLoop]: Abstraction has 5787 states and 15248 transitions. [2021-03-10 17:54:32,255 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:32,255 INFO L276 IsEmpty]: Start isEmpty. Operand 5787 states and 15248 transitions. [2021-03-10 17:54:32,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:54:32,259 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:32,259 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:32,259 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2021-03-10 17:54:32,259 INFO L428 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]=== [2021-03-10 17:54:32,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:32,259 INFO L82 PathProgramCache]: Analyzing trace with hash -549963421, now seen corresponding path program 139 times [2021-03-10 17:54:32,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:32,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163167605] [2021-03-10 17:54:32,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:32,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:32,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:32,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163167605] [2021-03-10 17:54:32,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:32,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:54:32,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992827262] [2021-03-10 17:54:32,659 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:54:32,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:32,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:54:32,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:54:32,660 INFO L87 Difference]: Start difference. First operand 5787 states and 15248 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:33,475 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:54:33,669 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:54:33,861 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:54:34,080 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:54:34,303 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:54:34,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:34,518 INFO L93 Difference]: Finished difference Result 23489 states and 59474 transitions. [2021-03-10 17:54:34,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:54:34,519 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:54:34,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:34,540 INFO L225 Difference]: With dead ends: 23489 [2021-03-10 17:54:34,540 INFO L226 Difference]: Without dead ends: 23489 [2021-03-10 17:54:34,540 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1605.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:54:34,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23489 states. [2021-03-10 17:54:34,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23489 to 5802. [2021-03-10 17:54:34,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5802 states, 5800 states have (on average 2.6363793103448274) internal successors, (15291), 5801 states have internal predecessors, (15291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:34,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5802 states to 5802 states and 15291 transitions. [2021-03-10 17:54:34,679 INFO L78 Accepts]: Start accepts. Automaton has 5802 states and 15291 transitions. Word has length 108 [2021-03-10 17:54:34,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:34,680 INFO L480 AbstractCegarLoop]: Abstraction has 5802 states and 15291 transitions. [2021-03-10 17:54:34,680 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:34,680 INFO L276 IsEmpty]: Start isEmpty. Operand 5802 states and 15291 transitions. [2021-03-10 17:54:34,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:54:34,684 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:34,684 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:34,684 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-03-10 17:54:34,684 INFO L428 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]=== [2021-03-10 17:54:34,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:34,684 INFO L82 PathProgramCache]: Analyzing trace with hash -2079121239, now seen corresponding path program 140 times [2021-03-10 17:54:34,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:34,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206907291] [2021-03-10 17:54:34,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:34,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:35,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:35,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206907291] [2021-03-10 17:54:35,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:35,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:54:35,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302666280] [2021-03-10 17:54:35,087 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:54:35,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:35,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:54:35,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:54:35,087 INFO L87 Difference]: Start difference. First operand 5802 states and 15291 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:35,886 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2021-03-10 17:54:36,079 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2021-03-10 17:54:36,280 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2021-03-10 17:54:36,496 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2021-03-10 17:54:36,727 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 66 [2021-03-10 17:54:36,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:36,914 INFO L93 Difference]: Finished difference Result 20524 states and 52108 transitions. [2021-03-10 17:54:36,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:54:36,914 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:54:36,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:36,932 INFO L225 Difference]: With dead ends: 20524 [2021-03-10 17:54:36,932 INFO L226 Difference]: Without dead ends: 20524 [2021-03-10 17:54:36,932 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1635.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:54:36,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20524 states. [2021-03-10 17:54:37,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20524 to 5682. [2021-03-10 17:54:37,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5682 states, 5680 states have (on average 2.6315140845070424) internal successors, (14947), 5681 states have internal predecessors, (14947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:37,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5682 states to 5682 states and 14947 transitions. [2021-03-10 17:54:37,051 INFO L78 Accepts]: Start accepts. Automaton has 5682 states and 14947 transitions. Word has length 108 [2021-03-10 17:54:37,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:37,051 INFO L480 AbstractCegarLoop]: Abstraction has 5682 states and 14947 transitions. [2021-03-10 17:54:37,052 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:37,052 INFO L276 IsEmpty]: Start isEmpty. Operand 5682 states and 14947 transitions. [2021-03-10 17:54:37,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:54:37,055 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:37,056 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:37,056 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-03-10 17:54:37,056 INFO L428 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]=== [2021-03-10 17:54:37,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:37,056 INFO L82 PathProgramCache]: Analyzing trace with hash -2112750271, now seen corresponding path program 141 times [2021-03-10 17:54:37,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:37,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746448604] [2021-03-10 17:54:37,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:37,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:37,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:37,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746448604] [2021-03-10 17:54:37,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:37,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:54:37,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764686603] [2021-03-10 17:54:37,499 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:54:37,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:37,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:54:37,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:54:37,500 INFO L87 Difference]: Start difference. First operand 5682 states and 14947 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:38,275 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-03-10 17:54:38,433 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:54:38,613 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:54:38,851 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:54:39,084 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:54:39,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:39,257 INFO L93 Difference]: Finished difference Result 16069 states and 41588 transitions. [2021-03-10 17:54:39,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:54:39,257 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:54:39,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:39,272 INFO L225 Difference]: With dead ends: 16069 [2021-03-10 17:54:39,272 INFO L226 Difference]: Without dead ends: 16069 [2021-03-10 17:54:39,273 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1618.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:54:39,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16069 states. [2021-03-10 17:54:39,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16069 to 5712. [2021-03-10 17:54:39,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5712 states, 5710 states have (on average 2.632749562171629) internal successors, (15033), 5711 states have internal predecessors, (15033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:39,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5712 states to 5712 states and 15033 transitions. [2021-03-10 17:54:39,376 INFO L78 Accepts]: Start accepts. Automaton has 5712 states and 15033 transitions. Word has length 108 [2021-03-10 17:54:39,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:39,376 INFO L480 AbstractCegarLoop]: Abstraction has 5712 states and 15033 transitions. [2021-03-10 17:54:39,376 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:39,376 INFO L276 IsEmpty]: Start isEmpty. Operand 5712 states and 15033 transitions. [2021-03-10 17:54:39,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:54:39,380 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:39,380 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:39,380 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-03-10 17:54:39,380 INFO L428 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]=== [2021-03-10 17:54:39,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:39,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1561018619, now seen corresponding path program 142 times [2021-03-10 17:54:39,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:39,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404871842] [2021-03-10 17:54:39,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:39,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:39,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:39,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404871842] [2021-03-10 17:54:39,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:39,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:54:39,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568305153] [2021-03-10 17:54:39,823 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:54:39,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:39,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:54:39,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:54:39,824 INFO L87 Difference]: Start difference. First operand 5712 states and 15033 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:40,665 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-03-10 17:54:40,846 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:54:41,025 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:54:41,271 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:54:41,506 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:54:41,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:41,701 INFO L93 Difference]: Finished difference Result 19104 states and 49319 transitions. [2021-03-10 17:54:41,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:54:41,702 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:54:41,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:41,720 INFO L225 Difference]: With dead ends: 19104 [2021-03-10 17:54:41,720 INFO L226 Difference]: Without dead ends: 19104 [2021-03-10 17:54:41,720 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1668.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:54:41,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19104 states. [2021-03-10 17:54:41,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19104 to 5742. [2021-03-10 17:54:41,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5742 states, 5740 states have (on average 2.63397212543554) internal successors, (15119), 5741 states have internal predecessors, (15119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:41,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5742 states to 5742 states and 15119 transitions. [2021-03-10 17:54:41,842 INFO L78 Accepts]: Start accepts. Automaton has 5742 states and 15119 transitions. Word has length 108 [2021-03-10 17:54:41,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:41,842 INFO L480 AbstractCegarLoop]: Abstraction has 5742 states and 15119 transitions. [2021-03-10 17:54:41,842 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:41,842 INFO L276 IsEmpty]: Start isEmpty. Operand 5742 states and 15119 transitions. [2021-03-10 17:54:41,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:54:41,846 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:41,846 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:41,846 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-03-10 17:54:41,847 INFO L428 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]=== [2021-03-10 17:54:41,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:41,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1624514309, now seen corresponding path program 143 times [2021-03-10 17:54:41,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:41,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358626984] [2021-03-10 17:54:41,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:41,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:42,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:42,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358626984] [2021-03-10 17:54:42,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:42,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:54:42,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186230530] [2021-03-10 17:54:42,299 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:54:42,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:42,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:54:42,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:54:42,300 INFO L87 Difference]: Start difference. First operand 5742 states and 15119 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:43,102 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-03-10 17:54:43,278 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:54:43,499 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:54:43,711 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:54:43,945 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:54:44,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:44,136 INFO L93 Difference]: Finished difference Result 18810 states and 48497 transitions. [2021-03-10 17:54:44,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:54:44,137 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:54:44,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:44,153 INFO L225 Difference]: With dead ends: 18810 [2021-03-10 17:54:44,153 INFO L226 Difference]: Without dead ends: 18810 [2021-03-10 17:54:44,154 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1655.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:54:44,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18810 states. [2021-03-10 17:54:44,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18810 to 5757. [2021-03-10 17:54:44,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5757 states, 5755 states have (on average 2.6345786272806255) internal successors, (15162), 5756 states have internal predecessors, (15162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:44,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5757 states to 5757 states and 15162 transitions. [2021-03-10 17:54:44,284 INFO L78 Accepts]: Start accepts. Automaton has 5757 states and 15162 transitions. Word has length 108 [2021-03-10 17:54:44,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:44,284 INFO L480 AbstractCegarLoop]: Abstraction has 5757 states and 15162 transitions. [2021-03-10 17:54:44,284 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:44,284 INFO L276 IsEmpty]: Start isEmpty. Operand 5757 states and 15162 transitions. [2021-03-10 17:54:44,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:54:44,288 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:44,288 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:44,288 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-03-10 17:54:44,288 INFO L428 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]=== [2021-03-10 17:54:44,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:44,289 INFO L82 PathProgramCache]: Analyzing trace with hash -732480191, now seen corresponding path program 144 times [2021-03-10 17:54:44,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:44,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231143958] [2021-03-10 17:54:44,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:44,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:44,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:44,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231143958] [2021-03-10 17:54:44,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:44,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:54:44,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061196111] [2021-03-10 17:54:44,742 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:54:44,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:44,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:54:44,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:54:44,743 INFO L87 Difference]: Start difference. First operand 5757 states and 15162 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:45,517 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-03-10 17:54:45,687 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:54:45,902 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:54:46,128 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:54:46,351 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:54:46,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:46,510 INFO L93 Difference]: Finished difference Result 17213 states and 44132 transitions. [2021-03-10 17:54:46,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:54:46,511 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:54:46,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:46,526 INFO L225 Difference]: With dead ends: 17213 [2021-03-10 17:54:46,526 INFO L226 Difference]: Without dead ends: 17213 [2021-03-10 17:54:46,527 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1665.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:54:46,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17213 states. [2021-03-10 17:54:46,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17213 to 5697. [2021-03-10 17:54:46,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5697 states, 5695 states have (on average 2.6321334503950835) internal successors, (14990), 5696 states have internal predecessors, (14990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:46,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5697 states to 5697 states and 14990 transitions. [2021-03-10 17:54:46,631 INFO L78 Accepts]: Start accepts. Automaton has 5697 states and 14990 transitions. Word has length 108 [2021-03-10 17:54:46,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:46,631 INFO L480 AbstractCegarLoop]: Abstraction has 5697 states and 14990 transitions. [2021-03-10 17:54:46,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:46,631 INFO L276 IsEmpty]: Start isEmpty. Operand 5697 states and 14990 transitions. [2021-03-10 17:54:46,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:54:46,635 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:46,635 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:46,635 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2021-03-10 17:54:46,635 INFO L428 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]=== [2021-03-10 17:54:46,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:46,635 INFO L82 PathProgramCache]: Analyzing trace with hash -1103922993, now seen corresponding path program 145 times [2021-03-10 17:54:46,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:46,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869005340] [2021-03-10 17:54:46,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:46,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:47,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:47,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869005340] [2021-03-10 17:54:47,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:47,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:54:47,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871344806] [2021-03-10 17:54:47,108 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:54:47,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:47,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:54:47,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:54:47,109 INFO L87 Difference]: Start difference. First operand 5697 states and 14990 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:47,898 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:54:48,085 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:54:48,262 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:54:48,500 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:54:48,733 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:54:48,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:48,927 INFO L93 Difference]: Finished difference Result 18818 states and 47944 transitions. [2021-03-10 17:54:48,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:54:48,928 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:54:48,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:48,945 INFO L225 Difference]: With dead ends: 18818 [2021-03-10 17:54:48,945 INFO L226 Difference]: Without dead ends: 18818 [2021-03-10 17:54:48,945 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1671.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:54:48,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18818 states. [2021-03-10 17:54:49,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18818 to 5757. [2021-03-10 17:54:49,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5757 states, 5755 states have (on average 2.6345786272806255) internal successors, (15162), 5756 states have internal predecessors, (15162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:49,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5757 states to 5757 states and 15162 transitions. [2021-03-10 17:54:49,059 INFO L78 Accepts]: Start accepts. Automaton has 5757 states and 15162 transitions. Word has length 108 [2021-03-10 17:54:49,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:49,059 INFO L480 AbstractCegarLoop]: Abstraction has 5757 states and 15162 transitions. [2021-03-10 17:54:49,059 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:49,059 INFO L276 IsEmpty]: Start isEmpty. Operand 5757 states and 15162 transitions. [2021-03-10 17:54:49,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:54:49,063 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:49,063 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:49,063 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2021-03-10 17:54:49,063 INFO L428 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]=== [2021-03-10 17:54:49,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:49,063 INFO L82 PathProgramCache]: Analyzing trace with hash 2081609935, now seen corresponding path program 146 times [2021-03-10 17:54:49,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:49,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321816313] [2021-03-10 17:54:49,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:49,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:49,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:49,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321816313] [2021-03-10 17:54:49,485 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:49,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:54:49,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713331321] [2021-03-10 17:54:49,485 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:54:49,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:49,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:54:49,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:54:49,485 INFO L87 Difference]: Start difference. First operand 5757 states and 15162 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:50,291 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:54:50,461 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:54:50,686 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:54:50,900 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:54:51,139 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:54:51,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:51,351 INFO L93 Difference]: Finished difference Result 21407 states and 54475 transitions. [2021-03-10 17:54:51,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:54:51,351 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:54:51,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:51,370 INFO L225 Difference]: With dead ends: 21407 [2021-03-10 17:54:51,370 INFO L226 Difference]: Without dead ends: 21407 [2021-03-10 17:54:51,371 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1632.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:54:51,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21407 states. [2021-03-10 17:54:51,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21407 to 5772. [2021-03-10 17:54:51,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5772 states, 5770 states have (on average 2.6351819757365686) internal successors, (15205), 5771 states have internal predecessors, (15205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:51,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5772 states to 5772 states and 15205 transitions. [2021-03-10 17:54:51,493 INFO L78 Accepts]: Start accepts. Automaton has 5772 states and 15205 transitions. Word has length 108 [2021-03-10 17:54:51,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:51,493 INFO L480 AbstractCegarLoop]: Abstraction has 5772 states and 15205 transitions. [2021-03-10 17:54:51,493 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:51,493 INFO L276 IsEmpty]: Start isEmpty. Operand 5772 states and 15205 transitions. [2021-03-10 17:54:51,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:54:51,497 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:51,497 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:51,497 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2021-03-10 17:54:51,497 INFO L428 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]=== [2021-03-10 17:54:51,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:51,497 INFO L82 PathProgramCache]: Analyzing trace with hash -275384565, now seen corresponding path program 147 times [2021-03-10 17:54:51,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:51,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14338298] [2021-03-10 17:54:51,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:51,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:51,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:51,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14338298] [2021-03-10 17:54:51,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:51,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:54:51,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999153541] [2021-03-10 17:54:51,975 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:54:51,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:51,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:54:51,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:54:51,976 INFO L87 Difference]: Start difference. First operand 5772 states and 15205 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:52,696 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:54:52,863 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:54:53,039 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:54:53,266 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:54:53,496 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:54:53,725 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:54:53,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:53,942 INFO L93 Difference]: Finished difference Result 19810 states and 50110 transitions. [2021-03-10 17:54:53,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:54:53,943 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:54:53,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:53,961 INFO L225 Difference]: With dead ends: 19810 [2021-03-10 17:54:53,961 INFO L226 Difference]: Without dead ends: 19810 [2021-03-10 17:54:53,961 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1710.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:54:53,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19810 states. [2021-03-10 17:54:54,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19810 to 5727. [2021-03-10 17:54:54,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5727 states, 5725 states have (on average 2.633362445414847) internal successors, (15076), 5726 states have internal predecessors, (15076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:54,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5727 states to 5727 states and 15076 transitions. [2021-03-10 17:54:54,078 INFO L78 Accepts]: Start accepts. Automaton has 5727 states and 15076 transitions. Word has length 108 [2021-03-10 17:54:54,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:54,078 INFO L480 AbstractCegarLoop]: Abstraction has 5727 states and 15076 transitions. [2021-03-10 17:54:54,078 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:54,078 INFO L276 IsEmpty]: Start isEmpty. Operand 5727 states and 15076 transitions. [2021-03-10 17:54:54,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:54:54,081 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:54,081 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:54,082 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2021-03-10 17:54:54,082 INFO L428 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]=== [2021-03-10 17:54:54,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:54,082 INFO L82 PathProgramCache]: Analyzing trace with hash 1240157933, now seen corresponding path program 148 times [2021-03-10 17:54:54,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:54,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581516423] [2021-03-10 17:54:54,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:54,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:54,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:54,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581516423] [2021-03-10 17:54:54,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:54,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:54:54,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125004164] [2021-03-10 17:54:54,491 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:54:54,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:54,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:54:54,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:54:54,491 INFO L87 Difference]: Start difference. First operand 5727 states and 15076 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:55,303 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:54:55,499 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:54:55,710 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:54:55,920 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:54:56,157 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:54:56,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:56,351 INFO L93 Difference]: Finished difference Result 18372 states and 46744 transitions. [2021-03-10 17:54:56,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:54:56,352 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:54:56,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:56,367 INFO L225 Difference]: With dead ends: 18372 [2021-03-10 17:54:56,367 INFO L226 Difference]: Without dead ends: 18372 [2021-03-10 17:54:56,368 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1648.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:54:56,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18372 states. [2021-03-10 17:54:56,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18372 to 5757. [2021-03-10 17:54:56,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5757 states, 5755 states have (on average 2.6345786272806255) internal successors, (15162), 5756 states have internal predecessors, (15162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:56,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5757 states to 5757 states and 15162 transitions. [2021-03-10 17:54:56,478 INFO L78 Accepts]: Start accepts. Automaton has 5757 states and 15162 transitions. Word has length 108 [2021-03-10 17:54:56,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:56,478 INFO L480 AbstractCegarLoop]: Abstraction has 5757 states and 15162 transitions. [2021-03-10 17:54:56,479 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:56,479 INFO L276 IsEmpty]: Start isEmpty. Operand 5757 states and 15162 transitions. [2021-03-10 17:54:56,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:54:56,482 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:56,483 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:56,483 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2021-03-10 17:54:56,483 INFO L428 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]=== [2021-03-10 17:54:56,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:56,483 INFO L82 PathProgramCache]: Analyzing trace with hash -1116836567, now seen corresponding path program 149 times [2021-03-10 17:54:56,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:56,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475153529] [2021-03-10 17:54:56,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:56,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:56,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:56,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475153529] [2021-03-10 17:54:56,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:56,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:54:56,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003555639] [2021-03-10 17:54:56,897 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:54:56,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:56,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:54:56,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:54:56,898 INFO L87 Difference]: Start difference. First operand 5757 states and 15162 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:57,687 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:54:57,875 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:54:58,063 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:54:58,288 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:54:58,507 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:54:58,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:58,687 INFO L93 Difference]: Finished difference Result 19288 states and 48721 transitions. [2021-03-10 17:54:58,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:54:58,688 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:54:58,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:58,705 INFO L225 Difference]: With dead ends: 19288 [2021-03-10 17:54:58,705 INFO L226 Difference]: Without dead ends: 19288 [2021-03-10 17:54:58,705 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1642.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:54:58,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19288 states. [2021-03-10 17:54:58,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19288 to 5742. [2021-03-10 17:54:58,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5742 states, 5740 states have (on average 2.63397212543554) internal successors, (15119), 5741 states have internal predecessors, (15119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:58,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5742 states to 5742 states and 15119 transitions. [2021-03-10 17:54:58,818 INFO L78 Accepts]: Start accepts. Automaton has 5742 states and 15119 transitions. Word has length 108 [2021-03-10 17:54:58,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:58,818 INFO L480 AbstractCegarLoop]: Abstraction has 5742 states and 15119 transitions. [2021-03-10 17:54:58,818 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:58,819 INFO L276 IsEmpty]: Start isEmpty. Operand 5742 states and 15119 transitions. [2021-03-10 17:54:58,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:54:58,822 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:58,822 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:58,822 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2021-03-10 17:54:58,822 INFO L428 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]=== [2021-03-10 17:54:58,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:58,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1965484293, now seen corresponding path program 150 times [2021-03-10 17:54:58,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:58,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002226049] [2021-03-10 17:54:58,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:58,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:59,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:59,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002226049] [2021-03-10 17:54:59,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:59,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:54:59,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718383067] [2021-03-10 17:54:59,270 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:54:59,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:59,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:54:59,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:54:59,270 INFO L87 Difference]: Start difference. First operand 5742 states and 15119 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:59,938 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:55:00,101 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:55:00,306 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:55:00,513 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:55:00,760 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:55:00,999 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:55:01,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:01,211 INFO L93 Difference]: Finished difference Result 18552 states and 47043 transitions. [2021-03-10 17:55:01,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:55:01,212 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:55:01,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:01,229 INFO L225 Difference]: With dead ends: 18552 [2021-03-10 17:55:01,229 INFO L226 Difference]: Without dead ends: 18552 [2021-03-10 17:55:01,230 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1685.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:55:01,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18552 states. [2021-03-10 17:55:01,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18552 to 5757. [2021-03-10 17:55:01,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5757 states, 5755 states have (on average 2.6345786272806255) internal successors, (15162), 5756 states have internal predecessors, (15162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:01,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5757 states to 5757 states and 15162 transitions. [2021-03-10 17:55:01,349 INFO L78 Accepts]: Start accepts. Automaton has 5757 states and 15162 transitions. Word has length 108 [2021-03-10 17:55:01,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:01,349 INFO L480 AbstractCegarLoop]: Abstraction has 5757 states and 15162 transitions. [2021-03-10 17:55:01,349 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:01,349 INFO L276 IsEmpty]: Start isEmpty. Operand 5757 states and 15162 transitions. [2021-03-10 17:55:01,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:55:01,353 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:01,353 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:01,353 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2021-03-10 17:55:01,353 INFO L428 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]=== [2021-03-10 17:55:01,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:01,354 INFO L82 PathProgramCache]: Analyzing trace with hash 436326475, now seen corresponding path program 151 times [2021-03-10 17:55:01,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:01,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141115585] [2021-03-10 17:55:01,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:01,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:01,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:01,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141115585] [2021-03-10 17:55:01,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:01,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:55:01,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602372999] [2021-03-10 17:55:01,786 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:55:01,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:01,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:55:01,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:55:01,786 INFO L87 Difference]: Start difference. First operand 5757 states and 15162 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:02,524 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2021-03-10 17:55:02,698 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2021-03-10 17:55:02,910 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2021-03-10 17:55:03,129 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2021-03-10 17:55:03,377 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2021-03-10 17:55:03,624 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 66 [2021-03-10 17:55:03,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:03,798 INFO L93 Difference]: Finished difference Result 15587 states and 39677 transitions. [2021-03-10 17:55:03,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:55:03,799 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:55:03,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:03,812 INFO L225 Difference]: With dead ends: 15587 [2021-03-10 17:55:03,812 INFO L226 Difference]: Without dead ends: 15587 [2021-03-10 17:55:03,813 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1775.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:55:03,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15587 states. [2021-03-10 17:55:03,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15587 to 5637. [2021-03-10 17:55:03,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5637 states, 5635 states have (on average 2.62963620230701) internal successors, (14818), 5636 states have internal predecessors, (14818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:03,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5637 states to 5637 states and 14818 transitions. [2021-03-10 17:55:03,913 INFO L78 Accepts]: Start accepts. Automaton has 5637 states and 14818 transitions. Word has length 108 [2021-03-10 17:55:03,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:03,913 INFO L480 AbstractCegarLoop]: Abstraction has 5637 states and 14818 transitions. [2021-03-10 17:55:03,914 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:03,914 INFO L276 IsEmpty]: Start isEmpty. Operand 5637 states and 14818 transitions. [2021-03-10 17:55:03,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:55:03,918 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:03,918 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:03,918 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2021-03-10 17:55:03,918 INFO L428 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]=== [2021-03-10 17:55:03,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:03,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1072359401, now seen corresponding path program 152 times [2021-03-10 17:55:03,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:03,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619082680] [2021-03-10 17:55:03,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:03,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:04,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:04,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619082680] [2021-03-10 17:55:04,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:04,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:55:04,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589046760] [2021-03-10 17:55:04,387 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:55:04,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:04,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:55:04,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:55:04,387 INFO L87 Difference]: Start difference. First operand 5637 states and 14818 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:05,068 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 41 [2021-03-10 17:55:05,278 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-03-10 17:55:05,472 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2021-03-10 17:55:05,693 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2021-03-10 17:55:05,959 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2021-03-10 17:55:06,215 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2021-03-10 17:55:06,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:06,400 INFO L93 Difference]: Finished difference Result 11424 states and 29422 transitions. [2021-03-10 17:55:06,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:55:06,401 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:55:06,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:06,411 INFO L225 Difference]: With dead ends: 11424 [2021-03-10 17:55:06,411 INFO L226 Difference]: Without dead ends: 11424 [2021-03-10 17:55:06,411 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1825.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:55:06,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11424 states. [2021-03-10 17:55:06,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11424 to 5813. [2021-03-10 17:55:06,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5813 states, 5811 states have (on average 2.637067630356221) internal successors, (15324), 5812 states have internal predecessors, (15324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:06,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5813 states to 5813 states and 15324 transitions. [2021-03-10 17:55:06,489 INFO L78 Accepts]: Start accepts. Automaton has 5813 states and 15324 transitions. Word has length 108 [2021-03-10 17:55:06,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:06,489 INFO L480 AbstractCegarLoop]: Abstraction has 5813 states and 15324 transitions. [2021-03-10 17:55:06,489 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:06,489 INFO L276 IsEmpty]: Start isEmpty. Operand 5813 states and 15324 transitions. [2021-03-10 17:55:06,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:55:06,493 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:06,493 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:06,493 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2021-03-10 17:55:06,494 INFO L428 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]=== [2021-03-10 17:55:06,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:06,494 INFO L82 PathProgramCache]: Analyzing trace with hash -32519545, now seen corresponding path program 153 times [2021-03-10 17:55:06,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:06,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788466299] [2021-03-10 17:55:06,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:06,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:06,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:06,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788466299] [2021-03-10 17:55:06,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:06,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:55:06,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405675250] [2021-03-10 17:55:06,981 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:55:06,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:06,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:55:06,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:55:06,982 INFO L87 Difference]: Start difference. First operand 5813 states and 15324 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:07,649 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:55:07,832 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:55:08,004 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:55:08,231 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:55:08,452 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:55:08,687 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:55:08,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:08,882 INFO L93 Difference]: Finished difference Result 14241 states and 36441 transitions. [2021-03-10 17:55:08,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:55:08,883 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:55:08,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:08,896 INFO L225 Difference]: With dead ends: 14241 [2021-03-10 17:55:08,896 INFO L226 Difference]: Without dead ends: 14241 [2021-03-10 17:55:08,896 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1750.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:55:08,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14241 states. [2021-03-10 17:55:08,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14241 to 5828. [2021-03-10 17:55:08,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5828 states, 5826 states have (on average 2.6376587710264334) internal successors, (15367), 5827 states have internal predecessors, (15367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:08,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5828 states to 5828 states and 15367 transitions. [2021-03-10 17:55:08,992 INFO L78 Accepts]: Start accepts. Automaton has 5828 states and 15367 transitions. Word has length 108 [2021-03-10 17:55:08,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:08,992 INFO L480 AbstractCegarLoop]: Abstraction has 5828 states and 15367 transitions. [2021-03-10 17:55:08,992 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:08,992 INFO L276 IsEmpty]: Start isEmpty. Operand 5828 states and 15367 transitions. [2021-03-10 17:55:08,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:55:08,996 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:08,996 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:08,996 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2021-03-10 17:55:08,996 INFO L428 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]=== [2021-03-10 17:55:08,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:08,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1561677363, now seen corresponding path program 154 times [2021-03-10 17:55:08,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:08,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419985862] [2021-03-10 17:55:08,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:09,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:09,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:09,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419985862] [2021-03-10 17:55:09,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:09,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:55:09,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860904213] [2021-03-10 17:55:09,468 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:55:09,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:09,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:55:09,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:55:09,468 INFO L87 Difference]: Start difference. First operand 5828 states and 15367 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:10,164 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 41 [2021-03-10 17:55:10,356 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-03-10 17:55:10,556 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2021-03-10 17:55:10,815 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2021-03-10 17:55:11,058 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2021-03-10 17:55:11,327 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2021-03-10 17:55:11,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:11,493 INFO L93 Difference]: Finished difference Result 12470 states and 31742 transitions. [2021-03-10 17:55:11,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:55:11,494 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:55:11,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:11,505 INFO L225 Difference]: With dead ends: 12470 [2021-03-10 17:55:11,505 INFO L226 Difference]: Without dead ends: 12470 [2021-03-10 17:55:11,505 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1891.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:55:11,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12470 states. [2021-03-10 17:55:11,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12470 to 5783. [2021-03-10 17:55:11,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5783 states, 5781 states have (on average 2.6358761459955025) internal successors, (15238), 5782 states have internal predecessors, (15238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:11,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5783 states to 5783 states and 15238 transitions. [2021-03-10 17:55:11,610 INFO L78 Accepts]: Start accepts. Automaton has 5783 states and 15238 transitions. Word has length 108 [2021-03-10 17:55:11,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:11,610 INFO L480 AbstractCegarLoop]: Abstraction has 5783 states and 15238 transitions. [2021-03-10 17:55:11,610 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:11,611 INFO L276 IsEmpty]: Start isEmpty. Operand 5783 states and 15238 transitions. [2021-03-10 17:55:11,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:55:11,614 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:11,615 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:11,615 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2021-03-10 17:55:11,615 INFO L428 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]=== [2021-03-10 17:55:11,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:11,615 INFO L82 PathProgramCache]: Analyzing trace with hash -325281621, now seen corresponding path program 155 times [2021-03-10 17:55:11,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:11,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461861765] [2021-03-10 17:55:11,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:11,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:12,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:12,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461861765] [2021-03-10 17:55:12,063 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:12,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:55:12,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77026062] [2021-03-10 17:55:12,064 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:55:12,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:12,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:55:12,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:55:12,064 INFO L87 Difference]: Start difference. First operand 5783 states and 15238 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:12,768 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:55:12,954 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:55:13,156 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:55:13,348 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:55:13,567 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:55:13,812 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:55:13,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:13,979 INFO L93 Difference]: Finished difference Result 14204 states and 36447 transitions. [2021-03-10 17:55:13,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:55:13,980 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:55:13,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:13,992 INFO L225 Difference]: With dead ends: 14204 [2021-03-10 17:55:13,992 INFO L226 Difference]: Without dead ends: 14204 [2021-03-10 17:55:13,992 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1776.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:55:14,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14204 states. [2021-03-10 17:55:14,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14204 to 5813. [2021-03-10 17:55:14,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5813 states, 5811 states have (on average 2.637067630356221) internal successors, (15324), 5812 states have internal predecessors, (15324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:14,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5813 states to 5813 states and 15324 transitions. [2021-03-10 17:55:14,088 INFO L78 Accepts]: Start accepts. Automaton has 5813 states and 15324 transitions. Word has length 108 [2021-03-10 17:55:14,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:14,088 INFO L480 AbstractCegarLoop]: Abstraction has 5813 states and 15324 transitions. [2021-03-10 17:55:14,088 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:14,088 INFO L276 IsEmpty]: Start isEmpty. Operand 5813 states and 15324 transitions. [2021-03-10 17:55:14,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:55:14,092 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:14,092 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:14,092 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2021-03-10 17:55:14,092 INFO L428 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]=== [2021-03-10 17:55:14,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:14,093 INFO L82 PathProgramCache]: Analyzing trace with hash 1612691175, now seen corresponding path program 156 times [2021-03-10 17:55:14,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:14,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113721149] [2021-03-10 17:55:14,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:14,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:14,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:14,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113721149] [2021-03-10 17:55:14,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:14,577 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:55:14,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060924898] [2021-03-10 17:55:14,578 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:55:14,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:14,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:55:14,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:55:14,578 INFO L87 Difference]: Start difference. First operand 5813 states and 15324 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:15,261 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:55:15,464 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:55:15,691 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:55:15,885 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:55:16,127 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:55:16,363 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:55:16,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:16,556 INFO L93 Difference]: Finished difference Result 15120 states and 38424 transitions. [2021-03-10 17:55:16,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:55:16,557 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:55:16,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:16,571 INFO L225 Difference]: With dead ends: 15120 [2021-03-10 17:55:16,571 INFO L226 Difference]: Without dead ends: 15120 [2021-03-10 17:55:16,571 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1784.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:55:16,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15120 states. [2021-03-10 17:55:16,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15120 to 5798. [2021-03-10 17:55:16,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5798 states, 5796 states have (on average 2.6364734299516908) internal successors, (15281), 5797 states have internal predecessors, (15281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:16,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5798 states to 5798 states and 15281 transitions. [2021-03-10 17:55:16,672 INFO L78 Accepts]: Start accepts. Automaton has 5798 states and 15281 transitions. Word has length 108 [2021-03-10 17:55:16,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:16,672 INFO L480 AbstractCegarLoop]: Abstraction has 5798 states and 15281 transitions. [2021-03-10 17:55:16,672 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:16,672 INFO L276 IsEmpty]: Start isEmpty. Operand 5798 states and 15281 transitions. [2021-03-10 17:55:16,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:55:16,676 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:16,676 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:16,676 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2021-03-10 17:55:16,676 INFO L428 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]=== [2021-03-10 17:55:16,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:16,677 INFO L82 PathProgramCache]: Analyzing trace with hash 400044739, now seen corresponding path program 157 times [2021-03-10 17:55:16,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:16,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928994770] [2021-03-10 17:55:16,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:16,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:17,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:17,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928994770] [2021-03-10 17:55:17,116 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:17,116 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:55:17,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759159979] [2021-03-10 17:55:17,116 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:55:17,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:17,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:55:17,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:55:17,116 INFO L87 Difference]: Start difference. First operand 5798 states and 15281 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:17,784 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:55:17,968 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:55:18,186 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:55:18,381 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:55:18,614 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:55:18,852 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:55:19,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:19,073 INFO L93 Difference]: Finished difference Result 16798 states and 42286 transitions. [2021-03-10 17:55:19,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:55:19,074 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:55:19,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:19,089 INFO L225 Difference]: With dead ends: 16798 [2021-03-10 17:55:19,089 INFO L226 Difference]: Without dead ends: 16798 [2021-03-10 17:55:19,089 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1712.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:55:19,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16798 states. [2021-03-10 17:55:19,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16798 to 5813. [2021-03-10 17:55:19,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5813 states, 5811 states have (on average 2.637067630356221) internal successors, (15324), 5812 states have internal predecessors, (15324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:19,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5813 states to 5813 states and 15324 transitions. [2021-03-10 17:55:19,195 INFO L78 Accepts]: Start accepts. Automaton has 5813 states and 15324 transitions. Word has length 108 [2021-03-10 17:55:19,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:19,195 INFO L480 AbstractCegarLoop]: Abstraction has 5813 states and 15324 transitions. [2021-03-10 17:55:19,195 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:19,195 INFO L276 IsEmpty]: Start isEmpty. Operand 5813 states and 15324 transitions. [2021-03-10 17:55:19,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:55:19,199 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:19,199 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:19,200 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2021-03-10 17:55:19,200 INFO L428 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]=== [2021-03-10 17:55:19,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:19,200 INFO L82 PathProgramCache]: Analyzing trace with hash -1129113079, now seen corresponding path program 158 times [2021-03-10 17:55:19,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:19,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488804980] [2021-03-10 17:55:19,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:19,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:19,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:19,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488804980] [2021-03-10 17:55:19,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:19,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:55:19,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953184310] [2021-03-10 17:55:19,679 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:55:19,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:19,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:55:19,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:55:19,680 INFO L87 Difference]: Start difference. First operand 5813 states and 15324 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:20,374 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 41 [2021-03-10 17:55:20,579 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-03-10 17:55:20,789 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2021-03-10 17:55:21,003 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2021-03-10 17:55:21,246 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2021-03-10 17:55:21,490 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 66 [2021-03-10 17:55:21,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:21,652 INFO L93 Difference]: Finished difference Result 13833 states and 34920 transitions. [2021-03-10 17:55:21,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:55:21,653 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:55:21,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:21,666 INFO L225 Difference]: With dead ends: 13833 [2021-03-10 17:55:21,666 INFO L226 Difference]: Without dead ends: 13833 [2021-03-10 17:55:21,666 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1830.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:55:21,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13833 states. [2021-03-10 17:55:21,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13833 to 5753. [2021-03-10 17:55:21,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5753 states, 5751 states have (on average 2.634672230916362) internal successors, (15152), 5752 states have internal predecessors, (15152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:21,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5753 states to 5753 states and 15152 transitions. [2021-03-10 17:55:21,760 INFO L78 Accepts]: Start accepts. Automaton has 5753 states and 15152 transitions. Word has length 108 [2021-03-10 17:55:21,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:21,760 INFO L480 AbstractCegarLoop]: Abstraction has 5753 states and 15152 transitions. [2021-03-10 17:55:21,760 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:21,760 INFO L276 IsEmpty]: Start isEmpty. Operand 5753 states and 15152 transitions. [2021-03-10 17:55:21,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:55:21,764 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:21,764 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:21,764 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2021-03-10 17:55:21,764 INFO L428 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]=== [2021-03-10 17:55:21,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:21,764 INFO L82 PathProgramCache]: Analyzing trace with hash -1789071161, now seen corresponding path program 159 times [2021-03-10 17:55:21,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:21,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356292809] [2021-03-10 17:55:21,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:21,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:22,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:22,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356292809] [2021-03-10 17:55:22,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:22,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:55:22,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913590192] [2021-03-10 17:55:22,238 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:55:22,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:22,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:55:22,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:55:22,239 INFO L87 Difference]: Start difference. First operand 5753 states and 15152 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:22,963 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:55:23,146 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:55:23,319 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:55:23,514 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:55:23,770 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:55:24,035 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:55:24,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:24,230 INFO L93 Difference]: Finished difference Result 14808 states and 38093 transitions. [2021-03-10 17:55:24,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:55:24,231 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:55:24,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:24,243 INFO L225 Difference]: With dead ends: 14808 [2021-03-10 17:55:24,244 INFO L226 Difference]: Without dead ends: 14808 [2021-03-10 17:55:24,244 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1828.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:55:24,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14808 states. [2021-03-10 17:55:24,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14808 to 5813. [2021-03-10 17:55:24,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5813 states, 5811 states have (on average 2.637067630356221) internal successors, (15324), 5812 states have internal predecessors, (15324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:24,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5813 states to 5813 states and 15324 transitions. [2021-03-10 17:55:24,340 INFO L78 Accepts]: Start accepts. Automaton has 5813 states and 15324 transitions. Word has length 108 [2021-03-10 17:55:24,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:24,340 INFO L480 AbstractCegarLoop]: Abstraction has 5813 states and 15324 transitions. [2021-03-10 17:55:24,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:24,340 INFO L276 IsEmpty]: Start isEmpty. Operand 5813 states and 15324 transitions. [2021-03-10 17:55:24,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:55:24,344 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:24,344 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:24,344 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2021-03-10 17:55:24,345 INFO L428 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]=== [2021-03-10 17:55:24,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:24,345 INFO L82 PathProgramCache]: Analyzing trace with hash -59932021, now seen corresponding path program 160 times [2021-03-10 17:55:24,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:24,345 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717806081] [2021-03-10 17:55:24,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:24,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:24,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:24,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717806081] [2021-03-10 17:55:24,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:24,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:55:24,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738943141] [2021-03-10 17:55:24,803 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:55:24,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:24,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:55:24,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:55:24,818 INFO L87 Difference]: Start difference. First operand 5813 states and 15324 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:25,496 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:55:25,689 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:55:25,865 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:55:26,101 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:55:26,317 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:55:26,566 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:55:26,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:26,773 INFO L93 Difference]: Finished difference Result 17397 states and 44624 transitions. [2021-03-10 17:55:26,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:55:26,774 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:55:26,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:26,790 INFO L225 Difference]: With dead ends: 17397 [2021-03-10 17:55:26,790 INFO L226 Difference]: Without dead ends: 17397 [2021-03-10 17:55:26,790 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1739.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:55:26,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17397 states. [2021-03-10 17:55:26,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17397 to 5828. [2021-03-10 17:55:26,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5828 states, 5826 states have (on average 2.6376587710264334) internal successors, (15367), 5827 states have internal predecessors, (15367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:26,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5828 states to 5828 states and 15367 transitions. [2021-03-10 17:55:26,898 INFO L78 Accepts]: Start accepts. Automaton has 5828 states and 15367 transitions. Word has length 108 [2021-03-10 17:55:26,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:26,898 INFO L480 AbstractCegarLoop]: Abstraction has 5828 states and 15367 transitions. [2021-03-10 17:55:26,898 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:26,898 INFO L276 IsEmpty]: Start isEmpty. Operand 5828 states and 15367 transitions. [2021-03-10 17:55:26,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:55:26,902 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:26,902 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:26,902 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2021-03-10 17:55:26,902 INFO L428 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]=== [2021-03-10 17:55:26,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:26,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1878040775, now seen corresponding path program 161 times [2021-03-10 17:55:26,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:26,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729212436] [2021-03-10 17:55:26,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:26,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:27,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:27,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729212436] [2021-03-10 17:55:27,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:27,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:55:27,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700697703] [2021-03-10 17:55:27,365 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:55:27,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:27,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:55:27,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:55:27,365 INFO L87 Difference]: Start difference. First operand 5828 states and 15367 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:28,072 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:55:28,271 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:55:28,453 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:55:28,692 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:55:28,926 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:55:29,167 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:55:29,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:29,362 INFO L93 Difference]: Finished difference Result 15800 states and 40259 transitions. [2021-03-10 17:55:29,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:55:29,363 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:55:29,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:29,377 INFO L225 Difference]: With dead ends: 15800 [2021-03-10 17:55:29,377 INFO L226 Difference]: Without dead ends: 15800 [2021-03-10 17:55:29,378 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1785.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:55:29,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15800 states. [2021-03-10 17:55:29,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15800 to 5783. [2021-03-10 17:55:29,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5783 states, 5781 states have (on average 2.6358761459955025) internal successors, (15238), 5782 states have internal predecessors, (15238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:29,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5783 states to 5783 states and 15238 transitions. [2021-03-10 17:55:29,477 INFO L78 Accepts]: Start accepts. Automaton has 5783 states and 15238 transitions. Word has length 108 [2021-03-10 17:55:29,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:29,477 INFO L480 AbstractCegarLoop]: Abstraction has 5783 states and 15238 transitions. [2021-03-10 17:55:29,477 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:29,477 INFO L276 IsEmpty]: Start isEmpty. Operand 5783 states and 15238 transitions. [2021-03-10 17:55:29,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:55:29,481 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:29,481 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:29,481 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2021-03-10 17:55:29,481 INFO L428 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]=== [2021-03-10 17:55:29,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:29,482 INFO L82 PathProgramCache]: Analyzing trace with hash -300304111, now seen corresponding path program 162 times [2021-03-10 17:55:29,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:29,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118881243] [2021-03-10 17:55:29,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:29,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:29,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:29,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118881243] [2021-03-10 17:55:29,918 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:29,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:55:29,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422115839] [2021-03-10 17:55:29,918 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:55:29,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:29,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:55:29,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:55:29,918 INFO L87 Difference]: Start difference. First operand 5783 states and 15238 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:30,582 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:55:30,766 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:55:30,964 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:55:31,168 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:55:31,391 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:55:31,635 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:55:31,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:31,839 INFO L93 Difference]: Finished difference Result 17185 states and 43505 transitions. [2021-03-10 17:55:31,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:55:31,840 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:55:31,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:31,857 INFO L225 Difference]: With dead ends: 17185 [2021-03-10 17:55:31,857 INFO L226 Difference]: Without dead ends: 17185 [2021-03-10 17:55:31,857 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1744.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:55:31,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17185 states. [2021-03-10 17:55:31,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17185 to 5813. [2021-03-10 17:55:31,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5813 states, 5811 states have (on average 2.637067630356221) internal successors, (15324), 5812 states have internal predecessors, (15324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:31,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5813 states to 5813 states and 15324 transitions. [2021-03-10 17:55:31,987 INFO L78 Accepts]: Start accepts. Automaton has 5813 states and 15324 transitions. Word has length 108 [2021-03-10 17:55:31,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:31,987 INFO L480 AbstractCegarLoop]: Abstraction has 5813 states and 15324 transitions. [2021-03-10 17:55:31,987 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:31,987 INFO L276 IsEmpty]: Start isEmpty. Operand 5813 states and 15324 transitions. [2021-03-10 17:55:31,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:55:31,991 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:31,991 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:31,992 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2021-03-10 17:55:31,992 INFO L428 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]=== [2021-03-10 17:55:31,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:31,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1637668685, now seen corresponding path program 163 times [2021-03-10 17:55:31,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:31,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276850121] [2021-03-10 17:55:31,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:32,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:32,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:32,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276850121] [2021-03-10 17:55:32,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:32,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:55:32,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444997607] [2021-03-10 17:55:32,460 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:55:32,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:32,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:55:32,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:55:32,461 INFO L87 Difference]: Start difference. First operand 5813 states and 15324 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:33,179 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:55:33,380 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:55:33,600 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:55:33,802 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:55:34,035 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:55:34,268 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:55:34,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:34,466 INFO L93 Difference]: Finished difference Result 18101 states and 45482 transitions. [2021-03-10 17:55:34,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:55:34,467 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:55:34,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:34,483 INFO L225 Difference]: With dead ends: 18101 [2021-03-10 17:55:34,483 INFO L226 Difference]: Without dead ends: 18101 [2021-03-10 17:55:34,483 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1825.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:55:34,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18101 states. [2021-03-10 17:55:34,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18101 to 5798. [2021-03-10 17:55:34,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5798 states, 5796 states have (on average 2.6364734299516908) internal successors, (15281), 5797 states have internal predecessors, (15281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:34,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5798 states to 5798 states and 15281 transitions. [2021-03-10 17:55:34,595 INFO L78 Accepts]: Start accepts. Automaton has 5798 states and 15281 transitions. Word has length 108 [2021-03-10 17:55:34,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:34,595 INFO L480 AbstractCegarLoop]: Abstraction has 5798 states and 15281 transitions. [2021-03-10 17:55:34,596 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:34,596 INFO L276 IsEmpty]: Start isEmpty. Operand 5798 states and 15281 transitions. [2021-03-10 17:55:34,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:55:34,600 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:34,600 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:34,600 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2021-03-10 17:55:34,600 INFO L428 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]=== [2021-03-10 17:55:34,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:34,600 INFO L82 PathProgramCache]: Analyzing trace with hash 425022249, now seen corresponding path program 164 times [2021-03-10 17:55:34,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:34,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201883430] [2021-03-10 17:55:34,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:34,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:35,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:35,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201883430] [2021-03-10 17:55:35,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:35,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:55:35,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398070649] [2021-03-10 17:55:35,054 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:55:35,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:35,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:55:35,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:55:35,055 INFO L87 Difference]: Start difference. First operand 5798 states and 15281 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:35,719 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:55:35,919 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:55:36,118 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:55:36,319 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:55:36,547 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:55:36,780 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:55:36,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:36,965 INFO L93 Difference]: Finished difference Result 17365 states and 43804 transitions. [2021-03-10 17:55:36,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:55:36,966 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:55:36,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:36,981 INFO L225 Difference]: With dead ends: 17365 [2021-03-10 17:55:36,981 INFO L226 Difference]: Without dead ends: 17365 [2021-03-10 17:55:36,981 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1774.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:55:37,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17365 states. [2021-03-10 17:55:37,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17365 to 5813. [2021-03-10 17:55:37,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5813 states, 5811 states have (on average 2.637067630356221) internal successors, (15324), 5812 states have internal predecessors, (15324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:37,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5813 states to 5813 states and 15324 transitions. [2021-03-10 17:55:37,088 INFO L78 Accepts]: Start accepts. Automaton has 5813 states and 15324 transitions. Word has length 108 [2021-03-10 17:55:37,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:37,088 INFO L480 AbstractCegarLoop]: Abstraction has 5813 states and 15324 transitions. [2021-03-10 17:55:37,088 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:37,088 INFO L276 IsEmpty]: Start isEmpty. Operand 5813 states and 15324 transitions. [2021-03-10 17:55:37,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:55:37,092 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:37,092 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:37,092 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2021-03-10 17:55:37,092 INFO L428 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]=== [2021-03-10 17:55:37,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:37,092 INFO L82 PathProgramCache]: Analyzing trace with hash -1104135569, now seen corresponding path program 165 times [2021-03-10 17:55:37,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:37,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697019554] [2021-03-10 17:55:37,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:37,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:37,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:37,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697019554] [2021-03-10 17:55:37,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:37,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:55:37,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949434089] [2021-03-10 17:55:37,539 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:55:37,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:37,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:55:37,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:55:37,539 INFO L87 Difference]: Start difference. First operand 5813 states and 15324 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:38,243 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 41 [2021-03-10 17:55:38,441 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2021-03-10 17:55:38,658 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2021-03-10 17:55:38,886 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2021-03-10 17:55:39,137 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2021-03-10 17:55:39,395 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 66 [2021-03-10 17:55:39,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:39,581 INFO L93 Difference]: Finished difference Result 14400 states and 36438 transitions. [2021-03-10 17:55:39,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:55:39,582 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:55:39,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:39,595 INFO L225 Difference]: With dead ends: 14400 [2021-03-10 17:55:39,595 INFO L226 Difference]: Without dead ends: 14400 [2021-03-10 17:55:39,595 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1817.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:55:39,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14400 states. [2021-03-10 17:55:39,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14400 to 5693. [2021-03-10 17:55:39,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5693 states, 5691 states have (on average 2.6322263222632225) internal successors, (14980), 5692 states have internal predecessors, (14980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:39,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5693 states to 5693 states and 14980 transitions. [2021-03-10 17:55:39,690 INFO L78 Accepts]: Start accepts. Automaton has 5693 states and 14980 transitions. Word has length 108 [2021-03-10 17:55:39,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:39,691 INFO L480 AbstractCegarLoop]: Abstraction has 5693 states and 14980 transitions. [2021-03-10 17:55:39,691 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:39,691 INFO L276 IsEmpty]: Start isEmpty. Operand 5693 states and 14980 transitions. [2021-03-10 17:55:39,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:55:39,695 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:39,695 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:39,695 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2021-03-10 17:55:39,695 INFO L428 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]=== [2021-03-10 17:55:39,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:39,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1137764601, now seen corresponding path program 166 times [2021-03-10 17:55:39,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:39,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67215233] [2021-03-10 17:55:39,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:39,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:40,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:40,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67215233] [2021-03-10 17:55:40,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:40,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:55:40,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146946946] [2021-03-10 17:55:40,242 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:55:40,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:40,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:55:40,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:55:40,243 INFO L87 Difference]: Start difference. First operand 5693 states and 14980 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:40,991 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:55:41,165 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-03-10 17:55:41,351 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:55:41,564 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:55:41,843 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:55:42,111 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:55:42,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:42,311 INFO L93 Difference]: Finished difference Result 15449 states and 39867 transitions. [2021-03-10 17:55:42,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:55:42,312 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:55:42,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:42,327 INFO L225 Difference]: With dead ends: 15449 [2021-03-10 17:55:42,327 INFO L226 Difference]: Without dead ends: 15449 [2021-03-10 17:55:42,327 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1863.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:55:42,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15449 states. [2021-03-10 17:55:42,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15449 to 5723. [2021-03-10 17:55:42,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5723 states, 5721 states have (on average 2.6334556895647614) internal successors, (15066), 5722 states have internal predecessors, (15066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:42,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5723 states to 5723 states and 15066 transitions. [2021-03-10 17:55:42,426 INFO L78 Accepts]: Start accepts. Automaton has 5723 states and 15066 transitions. Word has length 108 [2021-03-10 17:55:42,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:42,426 INFO L480 AbstractCegarLoop]: Abstraction has 5723 states and 15066 transitions. [2021-03-10 17:55:42,427 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:42,427 INFO L276 IsEmpty]: Start isEmpty. Operand 5723 states and 15066 transitions. [2021-03-10 17:55:42,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:55:42,430 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:42,430 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:42,430 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2021-03-10 17:55:42,431 INFO L428 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]=== [2021-03-10 17:55:42,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:42,431 INFO L82 PathProgramCache]: Analyzing trace with hash -586032949, now seen corresponding path program 167 times [2021-03-10 17:55:42,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:42,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011390142] [2021-03-10 17:55:42,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:42,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:42,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:42,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011390142] [2021-03-10 17:55:42,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:42,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:55:42,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032939549] [2021-03-10 17:55:42,940 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:55:42,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:42,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:55:42,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:55:42,941 INFO L87 Difference]: Start difference. First operand 5723 states and 15066 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:43,651 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:55:43,811 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-03-10 17:55:43,999 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:55:44,196 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:55:44,483 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:55:44,737 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:55:44,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:44,941 INFO L93 Difference]: Finished difference Result 18484 states and 47598 transitions. [2021-03-10 17:55:44,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:55:44,942 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:55:44,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:44,958 INFO L225 Difference]: With dead ends: 18484 [2021-03-10 17:55:44,959 INFO L226 Difference]: Without dead ends: 18484 [2021-03-10 17:55:44,959 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1845.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:55:44,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18484 states. [2021-03-10 17:55:45,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18484 to 5753. [2021-03-10 17:55:45,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5753 states, 5751 states have (on average 2.634672230916362) internal successors, (15152), 5752 states have internal predecessors, (15152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:45,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5753 states to 5753 states and 15152 transitions. [2021-03-10 17:55:45,075 INFO L78 Accepts]: Start accepts. Automaton has 5753 states and 15152 transitions. Word has length 108 [2021-03-10 17:55:45,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:45,075 INFO L480 AbstractCegarLoop]: Abstraction has 5753 states and 15152 transitions. [2021-03-10 17:55:45,075 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:45,075 INFO L276 IsEmpty]: Start isEmpty. Operand 5753 states and 15152 transitions. [2021-03-10 17:55:45,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:55:45,080 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:45,080 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:45,080 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2021-03-10 17:55:45,080 INFO L428 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]=== [2021-03-10 17:55:45,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:45,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1695467317, now seen corresponding path program 168 times [2021-03-10 17:55:45,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:45,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204581419] [2021-03-10 17:55:45,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:45,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:45,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:45,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204581419] [2021-03-10 17:55:45,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:45,592 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:55:45,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593864208] [2021-03-10 17:55:45,592 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:55:45,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:45,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:55:45,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:55:45,593 INFO L87 Difference]: Start difference. First operand 5753 states and 15152 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:46,327 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:55:46,491 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-03-10 17:55:46,681 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:55:46,929 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:55:47,169 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:55:47,430 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:55:47,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:47,641 INFO L93 Difference]: Finished difference Result 18190 states and 46776 transitions. [2021-03-10 17:55:47,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:55:47,642 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:55:47,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:47,658 INFO L225 Difference]: With dead ends: 18190 [2021-03-10 17:55:47,658 INFO L226 Difference]: Without dead ends: 18190 [2021-03-10 17:55:47,659 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1846.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:55:47,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18190 states. [2021-03-10 17:55:47,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18190 to 5768. [2021-03-10 17:55:47,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5768 states, 5766 states have (on average 2.6352757544224765) internal successors, (15195), 5767 states have internal predecessors, (15195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:47,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5768 states to 5768 states and 15195 transitions. [2021-03-10 17:55:47,769 INFO L78 Accepts]: Start accepts. Automaton has 5768 states and 15195 transitions. Word has length 108 [2021-03-10 17:55:47,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:47,769 INFO L480 AbstractCegarLoop]: Abstraction has 5768 states and 15195 transitions. [2021-03-10 17:55:47,769 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:47,769 INFO L276 IsEmpty]: Start isEmpty. Operand 5768 states and 15195 transitions. [2021-03-10 17:55:47,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:55:47,773 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:47,773 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:47,773 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2021-03-10 17:55:47,773 INFO L428 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]=== [2021-03-10 17:55:47,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:47,773 INFO L82 PathProgramCache]: Analyzing trace with hash 242505479, now seen corresponding path program 169 times [2021-03-10 17:55:47,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:47,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547457252] [2021-03-10 17:55:47,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:47,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:48,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:48,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547457252] [2021-03-10 17:55:48,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:48,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:55:48,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452218812] [2021-03-10 17:55:48,310 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:55:48,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:48,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:55:48,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:55:48,310 INFO L87 Difference]: Start difference. First operand 5768 states and 15195 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:49,033 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:55:49,203 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-03-10 17:55:49,405 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:55:49,658 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:55:49,916 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:55:50,175 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:55:50,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:50,368 INFO L93 Difference]: Finished difference Result 16593 states and 42411 transitions. [2021-03-10 17:55:50,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:55:50,369 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:55:50,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:50,385 INFO L225 Difference]: With dead ends: 16593 [2021-03-10 17:55:50,385 INFO L226 Difference]: Without dead ends: 16593 [2021-03-10 17:55:50,385 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1937.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:55:50,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16593 states. [2021-03-10 17:55:50,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16593 to 5708. [2021-03-10 17:55:50,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5708 states, 5706 states have (on average 2.6328426218016125) internal successors, (15023), 5707 states have internal predecessors, (15023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:50,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5708 states to 5708 states and 15023 transitions. [2021-03-10 17:55:50,505 INFO L78 Accepts]: Start accepts. Automaton has 5708 states and 15023 transitions. Word has length 108 [2021-03-10 17:55:50,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:50,505 INFO L480 AbstractCegarLoop]: Abstraction has 5708 states and 15023 transitions. [2021-03-10 17:55:50,505 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:50,505 INFO L276 IsEmpty]: Start isEmpty. Operand 5708 states and 15023 transitions. [2021-03-10 17:55:50,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:55:50,510 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:50,510 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:50,510 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2021-03-10 17:55:50,510 INFO L428 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]=== [2021-03-10 17:55:50,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:50,511 INFO L82 PathProgramCache]: Analyzing trace with hash -128937323, now seen corresponding path program 170 times [2021-03-10 17:55:50,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:50,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829122210] [2021-03-10 17:55:50,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:50,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:50,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:50,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829122210] [2021-03-10 17:55:50,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:50,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:55:50,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022148830] [2021-03-10 17:55:50,989 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:55:50,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:50,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:55:50,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:55:50,990 INFO L87 Difference]: Start difference. First operand 5708 states and 15023 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:51,724 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:55:51,895 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:55:52,085 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:55:52,286 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:55:52,553 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:55:52,841 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:55:53,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:53,073 INFO L93 Difference]: Finished difference Result 18198 states and 46223 transitions. [2021-03-10 17:55:53,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:55:53,074 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:55:53,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:53,091 INFO L225 Difference]: With dead ends: 18198 [2021-03-10 17:55:53,092 INFO L226 Difference]: Without dead ends: 18198 [2021-03-10 17:55:53,092 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1825.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:55:53,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18198 states. [2021-03-10 17:55:53,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18198 to 5768. [2021-03-10 17:55:53,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5768 states, 5766 states have (on average 2.6352757544224765) internal successors, (15195), 5767 states have internal predecessors, (15195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:53,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5768 states to 5768 states and 15195 transitions. [2021-03-10 17:55:53,203 INFO L78 Accepts]: Start accepts. Automaton has 5768 states and 15195 transitions. Word has length 108 [2021-03-10 17:55:53,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:53,203 INFO L480 AbstractCegarLoop]: Abstraction has 5768 states and 15195 transitions. [2021-03-10 17:55:53,203 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:53,203 INFO L276 IsEmpty]: Start isEmpty. Operand 5768 states and 15195 transitions. [2021-03-10 17:55:53,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:55:53,207 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:53,207 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:53,207 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2021-03-10 17:55:53,208 INFO L428 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]=== [2021-03-10 17:55:53,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:53,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1238371691, now seen corresponding path program 171 times [2021-03-10 17:55:53,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:53,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132973730] [2021-03-10 17:55:53,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:53,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:53,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:53,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132973730] [2021-03-10 17:55:53,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:53,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:55:53,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092592851] [2021-03-10 17:55:53,692 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:55:53,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:53,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:55:53,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:55:53,693 INFO L87 Difference]: Start difference. First operand 5768 states and 15195 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:54,432 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:55:54,605 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:55:54,791 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:55:55,039 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:55:55,275 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:55:55,535 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:55:55,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:55,767 INFO L93 Difference]: Finished difference Result 20787 states and 52754 transitions. [2021-03-10 17:55:55,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:55:55,768 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:55:55,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:55,787 INFO L225 Difference]: With dead ends: 20787 [2021-03-10 17:55:55,787 INFO L226 Difference]: Without dead ends: 20787 [2021-03-10 17:55:55,787 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1824.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:55:55,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20787 states. [2021-03-10 17:55:55,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20787 to 5783. [2021-03-10 17:55:55,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5783 states, 5781 states have (on average 2.6358761459955025) internal successors, (15238), 5782 states have internal predecessors, (15238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:55,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5783 states to 5783 states and 15238 transitions. [2021-03-10 17:55:55,909 INFO L78 Accepts]: Start accepts. Automaton has 5783 states and 15238 transitions. Word has length 108 [2021-03-10 17:55:55,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:55,909 INFO L480 AbstractCegarLoop]: Abstraction has 5783 states and 15238 transitions. [2021-03-10 17:55:55,909 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:55,909 INFO L276 IsEmpty]: Start isEmpty. Operand 5783 states and 15238 transitions. [2021-03-10 17:55:55,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:55:55,913 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:55,913 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:55,913 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2021-03-10 17:55:55,913 INFO L428 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]=== [2021-03-10 17:55:55,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:55,914 INFO L82 PathProgramCache]: Analyzing trace with hash 699601105, now seen corresponding path program 172 times [2021-03-10 17:55:55,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:55,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401127033] [2021-03-10 17:55:55,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:55,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:56,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:56,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401127033] [2021-03-10 17:55:56,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:56,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:55:56,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78177759] [2021-03-10 17:55:56,408 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:55:56,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:56,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:55:56,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:55:56,408 INFO L87 Difference]: Start difference. First operand 5783 states and 15238 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:57,140 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:55:57,303 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:55:57,484 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:55:57,718 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:55:57,965 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:55:58,209 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:55:58,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:58,411 INFO L93 Difference]: Finished difference Result 19190 states and 48389 transitions. [2021-03-10 17:55:58,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:55:58,412 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:55:58,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:58,429 INFO L225 Difference]: With dead ends: 19190 [2021-03-10 17:55:58,430 INFO L226 Difference]: Without dead ends: 19190 [2021-03-10 17:55:58,430 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1850.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:55:58,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19190 states. [2021-03-10 17:55:58,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19190 to 5738. [2021-03-10 17:55:58,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5738 states, 5736 states have (on average 2.634065550906555) internal successors, (15109), 5737 states have internal predecessors, (15109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:58,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5738 states to 5738 states and 15109 transitions. [2021-03-10 17:55:58,548 INFO L78 Accepts]: Start accepts. Automaton has 5738 states and 15109 transitions. Word has length 108 [2021-03-10 17:55:58,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:58,549 INFO L480 AbstractCegarLoop]: Abstraction has 5738 states and 15109 transitions. [2021-03-10 17:55:58,549 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:58,549 INFO L276 IsEmpty]: Start isEmpty. Operand 5738 states and 15109 transitions. [2021-03-10 17:55:58,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:55:58,553 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:58,553 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:58,553 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2021-03-10 17:55:58,553 INFO L428 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]=== [2021-03-10 17:55:58,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:58,553 INFO L82 PathProgramCache]: Analyzing trace with hash -2079823693, now seen corresponding path program 173 times [2021-03-10 17:55:58,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:58,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337917994] [2021-03-10 17:55:58,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:58,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:59,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:59,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337917994] [2021-03-10 17:55:59,011 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:59,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:55:59,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412996842] [2021-03-10 17:55:59,011 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:55:59,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:59,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:55:59,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:55:59,011 INFO L87 Difference]: Start difference. First operand 5738 states and 15109 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:59,745 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:55:59,917 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:56:00,139 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:56:00,348 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:56:00,605 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:56:00,874 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:56:01,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:01,109 INFO L93 Difference]: Finished difference Result 17752 states and 45023 transitions. [2021-03-10 17:56:01,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:56:01,110 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:56:01,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:01,127 INFO L225 Difference]: With dead ends: 17752 [2021-03-10 17:56:01,127 INFO L226 Difference]: Without dead ends: 17752 [2021-03-10 17:56:01,127 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1834.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:56:01,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17752 states. [2021-03-10 17:56:01,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17752 to 5768. [2021-03-10 17:56:01,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5768 states, 5766 states have (on average 2.6352757544224765) internal successors, (15195), 5767 states have internal predecessors, (15195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:01,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5768 states to 5768 states and 15195 transitions. [2021-03-10 17:56:01,251 INFO L78 Accepts]: Start accepts. Automaton has 5768 states and 15195 transitions. Word has length 108 [2021-03-10 17:56:01,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:01,251 INFO L480 AbstractCegarLoop]: Abstraction has 5768 states and 15195 transitions. [2021-03-10 17:56:01,251 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:01,251 INFO L276 IsEmpty]: Start isEmpty. Operand 5768 states and 15195 transitions. [2021-03-10 17:56:01,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:56:01,255 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:01,255 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:01,256 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2021-03-10 17:56:01,256 INFO L428 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]=== [2021-03-10 17:56:01,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:01,256 INFO L82 PathProgramCache]: Analyzing trace with hash -141850897, now seen corresponding path program 174 times [2021-03-10 17:56:01,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:01,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413300740] [2021-03-10 17:56:01,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:01,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:01,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:01,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413300740] [2021-03-10 17:56:01,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:01,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:56:01,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360459567] [2021-03-10 17:56:01,731 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:56:01,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:01,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:56:01,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:56:01,731 INFO L87 Difference]: Start difference. First operand 5768 states and 15195 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:02,478 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:56:02,649 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:56:02,870 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:56:03,080 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:56:03,331 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:56:03,574 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:56:03,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:03,810 INFO L93 Difference]: Finished difference Result 18668 states and 47000 transitions. [2021-03-10 17:56:03,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:56:03,812 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:56:03,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:03,830 INFO L225 Difference]: With dead ends: 18668 [2021-03-10 17:56:03,830 INFO L226 Difference]: Without dead ends: 18668 [2021-03-10 17:56:03,830 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1820.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:56:03,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18668 states. [2021-03-10 17:56:03,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18668 to 5753. [2021-03-10 17:56:03,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5753 states, 5751 states have (on average 2.634672230916362) internal successors, (15152), 5752 states have internal predecessors, (15152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:03,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5753 states to 5753 states and 15152 transitions. [2021-03-10 17:56:03,947 INFO L78 Accepts]: Start accepts. Automaton has 5753 states and 15152 transitions. Word has length 108 [2021-03-10 17:56:03,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:03,948 INFO L480 AbstractCegarLoop]: Abstraction has 5753 states and 15152 transitions. [2021-03-10 17:56:03,948 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:03,948 INFO L276 IsEmpty]: Start isEmpty. Operand 5753 states and 15152 transitions. [2021-03-10 17:56:03,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:56:03,952 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:03,952 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:03,952 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2021-03-10 17:56:03,952 INFO L428 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]=== [2021-03-10 17:56:03,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:03,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1354497333, now seen corresponding path program 175 times [2021-03-10 17:56:03,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:03,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369105311] [2021-03-10 17:56:03,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:03,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:04,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:04,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369105311] [2021-03-10 17:56:04,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:04,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:56:04,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410207747] [2021-03-10 17:56:04,427 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:56:04,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:04,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:56:04,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:56:04,428 INFO L87 Difference]: Start difference. First operand 5753 states and 15152 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:05,171 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:56:05,360 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:56:05,584 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:56:05,795 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:56:06,040 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:56:06,289 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:56:06,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:06,509 INFO L93 Difference]: Finished difference Result 17932 states and 45322 transitions. [2021-03-10 17:56:06,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:56:06,510 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:56:06,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:06,526 INFO L225 Difference]: With dead ends: 17932 [2021-03-10 17:56:06,527 INFO L226 Difference]: Without dead ends: 17932 [2021-03-10 17:56:06,527 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1824.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:56:06,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17932 states. [2021-03-10 17:56:06,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17932 to 5768. [2021-03-10 17:56:06,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5768 states, 5766 states have (on average 2.6352757544224765) internal successors, (15195), 5767 states have internal predecessors, (15195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:06,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5768 states to 5768 states and 15195 transitions. [2021-03-10 17:56:06,637 INFO L78 Accepts]: Start accepts. Automaton has 5768 states and 15195 transitions. Word has length 108 [2021-03-10 17:56:06,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:06,637 INFO L480 AbstractCegarLoop]: Abstraction has 5768 states and 15195 transitions. [2021-03-10 17:56:06,637 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:06,637 INFO L276 IsEmpty]: Start isEmpty. Operand 5768 states and 15195 transitions. [2021-03-10 17:56:06,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:56:06,641 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:06,641 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:06,641 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2021-03-10 17:56:06,641 INFO L428 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]=== [2021-03-10 17:56:06,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:06,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1411312145, now seen corresponding path program 176 times [2021-03-10 17:56:06,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:06,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273151176] [2021-03-10 17:56:06,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:06,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:07,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:07,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273151176] [2021-03-10 17:56:07,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:07,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:56:07,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956000218] [2021-03-10 17:56:07,109 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:56:07,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:07,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:56:07,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:56:07,109 INFO L87 Difference]: Start difference. First operand 5768 states and 15195 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:07,842 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2021-03-10 17:56:08,016 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2021-03-10 17:56:08,235 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2021-03-10 17:56:08,457 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2021-03-10 17:56:08,698 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2021-03-10 17:56:08,952 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 66 [2021-03-10 17:56:09,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:09,124 INFO L93 Difference]: Finished difference Result 14967 states and 37956 transitions. [2021-03-10 17:56:09,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:56:09,125 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:56:09,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:09,139 INFO L225 Difference]: With dead ends: 14967 [2021-03-10 17:56:09,139 INFO L226 Difference]: Without dead ends: 14967 [2021-03-10 17:56:09,139 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1860.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:56:09,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14967 states. [2021-03-10 17:56:09,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14967 to 5663. [2021-03-10 17:56:09,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5663 states, 5661 states have (on average 2.6309839251015723) internal successors, (14894), 5662 states have internal predecessors, (14894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:09,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5663 states to 5663 states and 14894 transitions. [2021-03-10 17:56:09,238 INFO L78 Accepts]: Start accepts. Automaton has 5663 states and 14894 transitions. Word has length 108 [2021-03-10 17:56:09,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:09,238 INFO L480 AbstractCegarLoop]: Abstraction has 5663 states and 14894 transitions. [2021-03-10 17:56:09,238 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:09,238 INFO L276 IsEmpty]: Start isEmpty. Operand 5663 states and 14894 transitions. [2021-03-10 17:56:09,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:56:09,242 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:09,242 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:09,242 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2021-03-10 17:56:09,242 INFO L428 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]=== [2021-03-10 17:56:09,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:09,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1146578257, now seen corresponding path program 177 times [2021-03-10 17:56:09,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:09,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593594843] [2021-03-10 17:56:09,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:09,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:09,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:09,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593594843] [2021-03-10 17:56:09,725 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:09,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-10 17:56:09,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668660023] [2021-03-10 17:56:09,725 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 17:56:09,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:09,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 17:56:09,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:56:09,726 INFO L87 Difference]: Start difference. First operand 5663 states and 14894 transitions. Second operand has 19 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:10,431 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2021-03-10 17:56:10,591 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-03-10 17:56:11,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:11,128 INFO L93 Difference]: Finished difference Result 6530 states and 16647 transitions. [2021-03-10 17:56:11,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:56:11,129 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:56:11,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:11,135 INFO L225 Difference]: With dead ends: 6530 [2021-03-10 17:56:11,135 INFO L226 Difference]: Without dead ends: 6530 [2021-03-10 17:56:11,136 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 1268.0ms TimeCoverageRelationStatistics Valid=316, Invalid=944, Unknown=0, NotChecked=0, Total=1260 [2021-03-10 17:56:11,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6530 states. [2021-03-10 17:56:11,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6530 to 5243. [2021-03-10 17:56:11,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5243 states, 5241 states have (on average 2.6571265025758444) internal successors, (13926), 5242 states have internal predecessors, (13926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:11,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5243 states to 5243 states and 13926 transitions. [2021-03-10 17:56:11,200 INFO L78 Accepts]: Start accepts. Automaton has 5243 states and 13926 transitions. Word has length 108 [2021-03-10 17:56:11,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:11,200 INFO L480 AbstractCegarLoop]: Abstraction has 5243 states and 13926 transitions. [2021-03-10 17:56:11,200 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:11,201 INFO L276 IsEmpty]: Start isEmpty. Operand 5243 states and 13926 transitions. [2021-03-10 17:56:11,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:56:11,204 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:11,204 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:11,204 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2021-03-10 17:56:11,204 INFO L428 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]=== [2021-03-10 17:56:11,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:11,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1964067883, now seen corresponding path program 178 times [2021-03-10 17:56:11,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:11,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478147878] [2021-03-10 17:56:11,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:11,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:11,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:11,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478147878] [2021-03-10 17:56:11,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:11,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:56:11,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385427282] [2021-03-10 17:56:11,766 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:56:11,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:11,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:56:11,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:56:11,766 INFO L87 Difference]: Start difference. First operand 5243 states and 13926 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:12,494 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2021-03-10 17:56:12,654 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-03-10 17:56:12,834 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:56:13,042 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:56:13,315 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:56:13,573 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:56:13,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:13,763 INFO L93 Difference]: Finished difference Result 9214 states and 24279 transitions. [2021-03-10 17:56:13,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:56:13,764 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:56:13,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:13,772 INFO L225 Difference]: With dead ends: 9214 [2021-03-10 17:56:13,772 INFO L226 Difference]: Without dead ends: 9214 [2021-03-10 17:56:13,772 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1899.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:56:13,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9214 states. [2021-03-10 17:56:13,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9214 to 5351. [2021-03-10 17:56:13,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5351 states, 5349 states have (on average 2.6618059450364555) internal successors, (14238), 5350 states have internal predecessors, (14238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:13,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5351 states to 5351 states and 14238 transitions. [2021-03-10 17:56:13,860 INFO L78 Accepts]: Start accepts. Automaton has 5351 states and 14238 transitions. Word has length 108 [2021-03-10 17:56:13,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:13,860 INFO L480 AbstractCegarLoop]: Abstraction has 5351 states and 14238 transitions. [2021-03-10 17:56:13,860 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:13,860 INFO L276 IsEmpty]: Start isEmpty. Operand 5351 states and 14238 transitions. [2021-03-10 17:56:13,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:56:13,864 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:13,864 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:13,864 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2021-03-10 17:56:13,864 INFO L428 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]=== [2021-03-10 17:56:13,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:13,864 INFO L82 PathProgramCache]: Analyzing trace with hash -1918367129, now seen corresponding path program 179 times [2021-03-10 17:56:13,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:13,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320696249] [2021-03-10 17:56:13,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:13,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:14,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:14,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320696249] [2021-03-10 17:56:14,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:14,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:56:14,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903926132] [2021-03-10 17:56:14,419 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:56:14,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:14,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:56:14,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:56:14,419 INFO L87 Difference]: Start difference. First operand 5351 states and 14238 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:15,200 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2021-03-10 17:56:15,377 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-03-10 17:56:15,552 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:56:15,760 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:56:16,043 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:56:16,315 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:56:16,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:16,522 INFO L93 Difference]: Finished difference Result 12331 states and 32381 transitions. [2021-03-10 17:56:16,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:56:16,523 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:56:16,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:16,535 INFO L225 Difference]: With dead ends: 12331 [2021-03-10 17:56:16,535 INFO L226 Difference]: Without dead ends: 12331 [2021-03-10 17:56:16,535 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1931.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:56:16,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12331 states. [2021-03-10 17:56:16,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12331 to 5364. [2021-03-10 17:56:16,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5364 states, 5362 states have (on average 2.6624393882879525) internal successors, (14276), 5363 states have internal predecessors, (14276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:16,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5364 states to 5364 states and 14276 transitions. [2021-03-10 17:56:16,618 INFO L78 Accepts]: Start accepts. Automaton has 5364 states and 14276 transitions. Word has length 108 [2021-03-10 17:56:16,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:16,618 INFO L480 AbstractCegarLoop]: Abstraction has 5364 states and 14276 transitions. [2021-03-10 17:56:16,618 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:16,618 INFO L276 IsEmpty]: Start isEmpty. Operand 5364 states and 14276 transitions. [2021-03-10 17:56:16,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:56:16,621 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:16,621 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:16,622 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2021-03-10 17:56:16,622 INFO L428 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]=== [2021-03-10 17:56:16,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:16,622 INFO L82 PathProgramCache]: Analyzing trace with hash -1366635477, now seen corresponding path program 180 times [2021-03-10 17:56:16,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:16,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837837057] [2021-03-10 17:56:16,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:16,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:17,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:17,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837837057] [2021-03-10 17:56:17,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:17,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:56:17,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918779095] [2021-03-10 17:56:17,180 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:56:17,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:17,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:56:17,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:56:17,181 INFO L87 Difference]: Start difference. First operand 5364 states and 14276 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:17,930 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2021-03-10 17:56:18,110 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-03-10 17:56:18,300 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:56:18,523 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:56:18,804 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:56:19,067 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:56:19,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:19,268 INFO L93 Difference]: Finished difference Result 12085 states and 31673 transitions. [2021-03-10 17:56:19,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:56:19,269 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:56:19,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:19,281 INFO L225 Difference]: With dead ends: 12085 [2021-03-10 17:56:19,281 INFO L226 Difference]: Without dead ends: 12085 [2021-03-10 17:56:19,281 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1909.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:56:19,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12085 states. [2021-03-10 17:56:19,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12085 to 5390. [2021-03-10 17:56:19,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5390 states, 5388 states have (on average 2.6636971046770603) internal successors, (14352), 5389 states have internal predecessors, (14352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:19,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5390 states to 5390 states and 14352 transitions. [2021-03-10 17:56:19,370 INFO L78 Accepts]: Start accepts. Automaton has 5390 states and 14352 transitions. Word has length 108 [2021-03-10 17:56:19,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:19,370 INFO L480 AbstractCegarLoop]: Abstraction has 5390 states and 14352 transitions. [2021-03-10 17:56:19,370 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:19,370 INFO L276 IsEmpty]: Start isEmpty. Operand 5390 states and 14352 transitions. [2021-03-10 17:56:19,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:56:19,374 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:19,374 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:19,374 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2021-03-10 17:56:19,374 INFO L428 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]=== [2021-03-10 17:56:19,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:19,374 INFO L82 PathProgramCache]: Analyzing trace with hash 1818897451, now seen corresponding path program 181 times [2021-03-10 17:56:19,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:19,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663287114] [2021-03-10 17:56:19,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:19,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:19,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:19,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663287114] [2021-03-10 17:56:19,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:19,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:56:19,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159978914] [2021-03-10 17:56:19,927 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:56:19,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:19,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:56:19,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:56:19,928 INFO L87 Difference]: Start difference. First operand 5390 states and 14352 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:20,681 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2021-03-10 17:56:20,861 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-03-10 17:56:21,052 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:56:21,312 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:56:21,554 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:56:21,808 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:56:22,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:22,012 INFO L93 Difference]: Finished difference Result 11839 states and 30965 transitions. [2021-03-10 17:56:22,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:56:22,014 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:56:22,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:22,025 INFO L225 Difference]: With dead ends: 11839 [2021-03-10 17:56:22,025 INFO L226 Difference]: Without dead ends: 11839 [2021-03-10 17:56:22,025 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1928.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:56:22,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11839 states. [2021-03-10 17:56:22,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11839 to 5403. [2021-03-10 17:56:22,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5403 states, 5401 states have (on average 2.6643214219588964) internal successors, (14390), 5402 states have internal predecessors, (14390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:22,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5403 states to 5403 states and 14390 transitions. [2021-03-10 17:56:22,113 INFO L78 Accepts]: Start accepts. Automaton has 5403 states and 14390 transitions. Word has length 108 [2021-03-10 17:56:22,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:22,113 INFO L480 AbstractCegarLoop]: Abstraction has 5403 states and 14390 transitions. [2021-03-10 17:56:22,113 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:22,113 INFO L276 IsEmpty]: Start isEmpty. Operand 5403 states and 14390 transitions. [2021-03-10 17:56:22,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:56:22,117 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:22,117 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:22,117 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2021-03-10 17:56:22,117 INFO L428 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]=== [2021-03-10 17:56:22,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:22,117 INFO L82 PathProgramCache]: Analyzing trace with hash -538097049, now seen corresponding path program 182 times [2021-03-10 17:56:22,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:22,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270039723] [2021-03-10 17:56:22,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:22,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:22,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:22,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270039723] [2021-03-10 17:56:22,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:22,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:56:22,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57813975] [2021-03-10 17:56:22,713 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:56:22,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:22,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:56:22,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:56:22,714 INFO L87 Difference]: Start difference. First operand 5403 states and 14390 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:23,446 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2021-03-10 17:56:23,619 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-03-10 17:56:23,805 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:56:24,054 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:56:24,307 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:56:24,542 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:56:24,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:24,702 INFO L93 Difference]: Finished difference Result 10181 states and 26528 transitions. [2021-03-10 17:56:24,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:56:24,703 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:56:24,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:24,711 INFO L225 Difference]: With dead ends: 10181 [2021-03-10 17:56:24,711 INFO L226 Difference]: Without dead ends: 10181 [2021-03-10 17:56:24,712 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1975.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:56:24,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10181 states. [2021-03-10 17:56:24,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10181 to 5351. [2021-03-10 17:56:24,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5351 states, 5349 states have (on average 2.6618059450364555) internal successors, (14238), 5350 states have internal predecessors, (14238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:24,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5351 states to 5351 states and 14238 transitions. [2021-03-10 17:56:24,784 INFO L78 Accepts]: Start accepts. Automaton has 5351 states and 14238 transitions. Word has length 108 [2021-03-10 17:56:24,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:24,784 INFO L480 AbstractCegarLoop]: Abstraction has 5351 states and 14238 transitions. [2021-03-10 17:56:24,785 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:24,785 INFO L276 IsEmpty]: Start isEmpty. Operand 5351 states and 14238 transitions. [2021-03-10 17:56:24,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:56:24,788 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:24,788 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:24,788 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2021-03-10 17:56:24,789 INFO L428 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]=== [2021-03-10 17:56:24,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:24,789 INFO L82 PathProgramCache]: Analyzing trace with hash -1531031621, now seen corresponding path program 183 times [2021-03-10 17:56:24,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:24,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859571947] [2021-03-10 17:56:24,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:24,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:25,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:25,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859571947] [2021-03-10 17:56:25,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:25,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:56:25,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526199077] [2021-03-10 17:56:25,327 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:56:25,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:25,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:56:25,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:56:25,328 INFO L87 Difference]: Start difference. First operand 5351 states and 14238 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:26,089 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:56:26,265 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-03-10 17:56:26,446 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:56:26,657 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:56:26,938 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:56:27,196 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:56:27,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:27,441 INFO L93 Difference]: Finished difference Result 11776 states and 30495 transitions. [2021-03-10 17:56:27,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:56:27,442 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:56:27,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:27,451 INFO L225 Difference]: With dead ends: 11776 [2021-03-10 17:56:27,451 INFO L226 Difference]: Without dead ends: 11776 [2021-03-10 17:56:27,451 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1891.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:56:27,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11776 states. [2021-03-10 17:56:27,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11776 to 5377. [2021-03-10 17:56:27,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5377 states, 5375 states have (on average 2.6630697674418604) internal successors, (14314), 5376 states have internal predecessors, (14314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:27,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5377 states to 5377 states and 14314 transitions. [2021-03-10 17:56:27,526 INFO L78 Accepts]: Start accepts. Automaton has 5377 states and 14314 transitions. Word has length 108 [2021-03-10 17:56:27,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:27,526 INFO L480 AbstractCegarLoop]: Abstraction has 5377 states and 14314 transitions. [2021-03-10 17:56:27,526 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:27,526 INFO L276 IsEmpty]: Start isEmpty. Operand 5377 states and 14314 transitions. [2021-03-10 17:56:27,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:56:27,529 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:27,530 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:27,530 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2021-03-10 17:56:27,530 INFO L428 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]=== [2021-03-10 17:56:27,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:27,530 INFO L82 PathProgramCache]: Analyzing trace with hash -979299969, now seen corresponding path program 184 times [2021-03-10 17:56:27,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:27,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022767160] [2021-03-10 17:56:27,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:27,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:28,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:28,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022767160] [2021-03-10 17:56:28,063 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:28,063 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:56:28,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191813200] [2021-03-10 17:56:28,063 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:56:28,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:28,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:56:28,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:56:28,064 INFO L87 Difference]: Start difference. First operand 5377 states and 14314 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:28,812 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:56:28,981 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-03-10 17:56:29,176 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:56:29,379 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:56:29,661 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:56:29,917 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:56:30,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:30,136 INFO L93 Difference]: Finished difference Result 14587 states and 37734 transitions. [2021-03-10 17:56:30,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:56:30,137 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:56:30,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:30,151 INFO L225 Difference]: With dead ends: 14587 [2021-03-10 17:56:30,151 INFO L226 Difference]: Without dead ends: 14587 [2021-03-10 17:56:30,152 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1906.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:56:30,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14587 states. [2021-03-10 17:56:30,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14587 to 5403. [2021-03-10 17:56:30,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5403 states, 5401 states have (on average 2.6643214219588964) internal successors, (14390), 5402 states have internal predecessors, (14390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:30,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5403 states to 5403 states and 14390 transitions. [2021-03-10 17:56:30,247 INFO L78 Accepts]: Start accepts. Automaton has 5403 states and 14390 transitions. Word has length 108 [2021-03-10 17:56:30,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:30,248 INFO L480 AbstractCegarLoop]: Abstraction has 5403 states and 14390 transitions. [2021-03-10 17:56:30,248 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:30,248 INFO L276 IsEmpty]: Start isEmpty. Operand 5403 states and 14390 transitions. [2021-03-10 17:56:30,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:56:30,251 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:30,251 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:30,251 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2021-03-10 17:56:30,251 INFO L428 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]=== [2021-03-10 17:56:30,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:30,252 INFO L82 PathProgramCache]: Analyzing trace with hash -2088734337, now seen corresponding path program 185 times [2021-03-10 17:56:30,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:30,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359062828] [2021-03-10 17:56:30,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:30,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:30,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:30,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359062828] [2021-03-10 17:56:30,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:30,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:56:30,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940605384] [2021-03-10 17:56:30,814 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:56:30,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:30,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:56:30,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:56:30,815 INFO L87 Difference]: Start difference. First operand 5403 states and 14390 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:31,600 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:56:31,805 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-03-10 17:56:32,005 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:56:32,271 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:56:32,516 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:56:32,773 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:56:32,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:32,993 INFO L93 Difference]: Finished difference Result 14341 states and 37026 transitions. [2021-03-10 17:56:32,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:56:32,994 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:56:32,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:33,007 INFO L225 Difference]: With dead ends: 14341 [2021-03-10 17:56:33,007 INFO L226 Difference]: Without dead ends: 14341 [2021-03-10 17:56:33,008 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1988.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:56:33,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14341 states. [2021-03-10 17:56:33,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14341 to 5416. [2021-03-10 17:56:33,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5416 states, 5414 states have (on average 2.6649427410417434) internal successors, (14428), 5415 states have internal predecessors, (14428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:33,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5416 states to 5416 states and 14428 transitions. [2021-03-10 17:56:33,100 INFO L78 Accepts]: Start accepts. Automaton has 5416 states and 14428 transitions. Word has length 108 [2021-03-10 17:56:33,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:33,100 INFO L480 AbstractCegarLoop]: Abstraction has 5416 states and 14428 transitions. [2021-03-10 17:56:33,100 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:33,100 INFO L276 IsEmpty]: Start isEmpty. Operand 5416 states and 14428 transitions. [2021-03-10 17:56:33,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:56:33,104 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:33,104 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:33,104 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2021-03-10 17:56:33,104 INFO L428 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]=== [2021-03-10 17:56:33,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:33,104 INFO L82 PathProgramCache]: Analyzing trace with hash -150761541, now seen corresponding path program 186 times [2021-03-10 17:56:33,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:33,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853985642] [2021-03-10 17:56:33,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:33,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:33,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:33,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853985642] [2021-03-10 17:56:33,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:33,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:56:33,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440708433] [2021-03-10 17:56:33,654 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:56:33,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:33,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:56:33,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:56:33,654 INFO L87 Difference]: Start difference. First operand 5416 states and 14428 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:34,441 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:56:34,616 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-03-10 17:56:34,814 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:56:35,079 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:56:35,346 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:56:35,593 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:56:35,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:35,823 INFO L93 Difference]: Finished difference Result 12683 states and 32589 transitions. [2021-03-10 17:56:35,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:56:35,824 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:56:35,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:35,836 INFO L225 Difference]: With dead ends: 12683 [2021-03-10 17:56:35,836 INFO L226 Difference]: Without dead ends: 12683 [2021-03-10 17:56:35,836 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1946.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:56:35,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12683 states. [2021-03-10 17:56:35,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12683 to 5364. [2021-03-10 17:56:35,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5364 states, 5362 states have (on average 2.6624393882879525) internal successors, (14276), 5363 states have internal predecessors, (14276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:35,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5364 states to 5364 states and 14276 transitions. [2021-03-10 17:56:35,918 INFO L78 Accepts]: Start accepts. Automaton has 5364 states and 14276 transitions. Word has length 108 [2021-03-10 17:56:35,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:35,918 INFO L480 AbstractCegarLoop]: Abstraction has 5364 states and 14276 transitions. [2021-03-10 17:56:35,918 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:35,918 INFO L276 IsEmpty]: Start isEmpty. Operand 5364 states and 14276 transitions. [2021-03-10 17:56:35,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:56:35,922 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:35,922 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:35,922 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2021-03-10 17:56:35,922 INFO L428 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]=== [2021-03-10 17:56:35,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:35,923 INFO L82 PathProgramCache]: Analyzing trace with hash -522204343, now seen corresponding path program 187 times [2021-03-10 17:56:35,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:35,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281387008] [2021-03-10 17:56:35,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:35,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:36,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:36,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281387008] [2021-03-10 17:56:36,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:36,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:56:36,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81147687] [2021-03-10 17:56:36,489 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:56:36,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:36,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:56:36,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:56:36,489 INFO L87 Difference]: Start difference. First operand 5364 states and 14276 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:37,280 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:56:37,463 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:56:37,650 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:56:37,866 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:56:38,151 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:56:38,408 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:56:38,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:38,633 INFO L93 Difference]: Finished difference Result 11470 states and 29632 transitions. [2021-03-10 17:56:38,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:56:38,635 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:56:38,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:38,645 INFO L225 Difference]: With dead ends: 11470 [2021-03-10 17:56:38,645 INFO L226 Difference]: Without dead ends: 11470 [2021-03-10 17:56:38,645 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1917.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:56:38,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11470 states. [2021-03-10 17:56:38,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11470 to 5416. [2021-03-10 17:56:38,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5416 states, 5414 states have (on average 2.6649427410417434) internal successors, (14428), 5415 states have internal predecessors, (14428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:38,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5416 states to 5416 states and 14428 transitions. [2021-03-10 17:56:38,725 INFO L78 Accepts]: Start accepts. Automaton has 5416 states and 14428 transitions. Word has length 108 [2021-03-10 17:56:38,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:38,725 INFO L480 AbstractCegarLoop]: Abstraction has 5416 states and 14428 transitions. [2021-03-10 17:56:38,725 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:38,725 INFO L276 IsEmpty]: Start isEmpty. Operand 5416 states and 14428 transitions. [2021-03-10 17:56:38,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:56:38,729 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:38,729 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:38,729 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2021-03-10 17:56:38,729 INFO L428 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]=== [2021-03-10 17:56:38,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:38,729 INFO L82 PathProgramCache]: Analyzing trace with hash -1631638711, now seen corresponding path program 188 times [2021-03-10 17:56:38,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:38,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277143527] [2021-03-10 17:56:38,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:38,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:39,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:39,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277143527] [2021-03-10 17:56:39,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:39,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:56:39,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596102712] [2021-03-10 17:56:39,249 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:56:39,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:39,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:56:39,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:56:39,250 INFO L87 Difference]: Start difference. First operand 5416 states and 14428 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:40,024 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:56:40,199 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:56:40,385 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:56:40,639 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:56:40,877 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:56:41,161 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:56:41,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:41,374 INFO L93 Difference]: Finished difference Result 13915 states and 35853 transitions. [2021-03-10 17:56:41,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:56:41,376 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:56:41,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:41,390 INFO L225 Difference]: With dead ends: 13915 [2021-03-10 17:56:41,390 INFO L226 Difference]: Without dead ends: 13915 [2021-03-10 17:56:41,390 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1963.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:56:41,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13915 states. [2021-03-10 17:56:41,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13915 to 5429. [2021-03-10 17:56:41,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5429 states, 5427 states have (on average 2.6655610834715313) internal successors, (14466), 5428 states have internal predecessors, (14466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:41,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5429 states to 5429 states and 14466 transitions. [2021-03-10 17:56:41,482 INFO L78 Accepts]: Start accepts. Automaton has 5429 states and 14466 transitions. Word has length 108 [2021-03-10 17:56:41,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:41,482 INFO L480 AbstractCegarLoop]: Abstraction has 5429 states and 14466 transitions. [2021-03-10 17:56:41,482 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:41,482 INFO L276 IsEmpty]: Start isEmpty. Operand 5429 states and 14466 transitions. [2021-03-10 17:56:41,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:56:41,486 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:41,486 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:41,486 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2021-03-10 17:56:41,486 INFO L428 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]=== [2021-03-10 17:56:41,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:41,486 INFO L82 PathProgramCache]: Analyzing trace with hash 306334085, now seen corresponding path program 189 times [2021-03-10 17:56:41,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:41,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666519367] [2021-03-10 17:56:41,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:41,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:42,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:42,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666519367] [2021-03-10 17:56:42,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:42,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:56:42,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095501145] [2021-03-10 17:56:42,163 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:56:42,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:42,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:56:42,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:56:42,164 INFO L87 Difference]: Start difference. First operand 5429 states and 14466 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:42,930 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:56:43,109 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:56:43,293 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:56:43,550 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:56:43,812 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:56:44,059 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:56:44,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:44,258 INFO L93 Difference]: Finished difference Result 12257 states and 31416 transitions. [2021-03-10 17:56:44,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:56:44,259 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:56:44,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:44,270 INFO L225 Difference]: With dead ends: 12257 [2021-03-10 17:56:44,271 INFO L226 Difference]: Without dead ends: 12257 [2021-03-10 17:56:44,271 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 2082.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:56:44,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12257 states. [2021-03-10 17:56:44,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12257 to 5390. [2021-03-10 17:56:44,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5390 states, 5388 states have (on average 2.6636971046770603) internal successors, (14352), 5389 states have internal predecessors, (14352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:44,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5390 states to 5390 states and 14352 transitions. [2021-03-10 17:56:44,349 INFO L78 Accepts]: Start accepts. Automaton has 5390 states and 14352 transitions. Word has length 108 [2021-03-10 17:56:44,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:44,349 INFO L480 AbstractCegarLoop]: Abstraction has 5390 states and 14352 transitions. [2021-03-10 17:56:44,349 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:44,349 INFO L276 IsEmpty]: Start isEmpty. Operand 5390 states and 14352 transitions. [2021-03-10 17:56:44,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:56:44,353 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:44,353 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:44,353 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2021-03-10 17:56:44,353 INFO L428 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]=== [2021-03-10 17:56:44,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:44,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1821876583, now seen corresponding path program 190 times [2021-03-10 17:56:44,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:44,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306748101] [2021-03-10 17:56:44,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:44,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:44,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:44,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306748101] [2021-03-10 17:56:44,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:44,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:56:44,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070247957] [2021-03-10 17:56:44,854 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:56:44,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:44,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:56:44,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:56:44,854 INFO L87 Difference]: Start difference. First operand 5390 states and 14352 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:45,518 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 17:56:45,670 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:56:45,853 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:56:46,086 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:56:46,310 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:56:46,559 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:56:46,814 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:56:47,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:47,029 INFO L93 Difference]: Finished difference Result 11104 states and 28614 transitions. [2021-03-10 17:56:47,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:56:47,030 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:56:47,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:47,040 INFO L225 Difference]: With dead ends: 11104 [2021-03-10 17:56:47,040 INFO L226 Difference]: Without dead ends: 11104 [2021-03-10 17:56:47,040 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1960.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:56:47,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11104 states. [2021-03-10 17:56:47,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11104 to 5416. [2021-03-10 17:56:47,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5416 states, 5414 states have (on average 2.6649427410417434) internal successors, (14428), 5415 states have internal predecessors, (14428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:47,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5416 states to 5416 states and 14428 transitions. [2021-03-10 17:56:47,127 INFO L78 Accepts]: Start accepts. Automaton has 5416 states and 14428 transitions. Word has length 108 [2021-03-10 17:56:47,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:47,128 INFO L480 AbstractCegarLoop]: Abstraction has 5416 states and 14428 transitions. [2021-03-10 17:56:47,128 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:47,128 INFO L276 IsEmpty]: Start isEmpty. Operand 5416 states and 14428 transitions. [2021-03-10 17:56:47,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:56:47,132 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:47,132 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:47,132 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2021-03-10 17:56:47,132 INFO L428 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]=== [2021-03-10 17:56:47,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:47,132 INFO L82 PathProgramCache]: Analyzing trace with hash -535117917, now seen corresponding path program 191 times [2021-03-10 17:56:47,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:47,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618378149] [2021-03-10 17:56:47,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:47,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:47,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:47,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618378149] [2021-03-10 17:56:47,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:47,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:56:47,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971372312] [2021-03-10 17:56:47,656 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:56:47,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:47,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:56:47,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:56:47,656 INFO L87 Difference]: Start difference. First operand 5416 states and 14428 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:48,449 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:56:48,630 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:56:48,861 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:56:49,079 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:56:49,341 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:56:49,587 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:56:49,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:49,815 INFO L93 Difference]: Finished difference Result 11831 states and 30243 transitions. [2021-03-10 17:56:49,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:56:49,817 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:56:49,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:49,827 INFO L225 Difference]: With dead ends: 11831 [2021-03-10 17:56:49,827 INFO L226 Difference]: Without dead ends: 11831 [2021-03-10 17:56:49,827 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1950.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:56:49,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11831 states. [2021-03-10 17:56:49,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11831 to 5403. [2021-03-10 17:56:49,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5403 states, 5401 states have (on average 2.6643214219588964) internal successors, (14390), 5402 states have internal predecessors, (14390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:49,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5403 states to 5403 states and 14390 transitions. [2021-03-10 17:56:49,905 INFO L78 Accepts]: Start accepts. Automaton has 5403 states and 14390 transitions. Word has length 108 [2021-03-10 17:56:49,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:49,905 INFO L480 AbstractCegarLoop]: Abstraction has 5403 states and 14390 transitions. [2021-03-10 17:56:49,905 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:49,906 INFO L276 IsEmpty]: Start isEmpty. Operand 5403 states and 14390 transitions. [2021-03-10 17:56:49,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:56:49,909 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:49,909 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:49,909 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2021-03-10 17:56:49,909 INFO L428 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]=== [2021-03-10 17:56:49,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:49,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1747764353, now seen corresponding path program 192 times [2021-03-10 17:56:49,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:49,910 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806166077] [2021-03-10 17:56:49,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:49,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:50,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:50,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806166077] [2021-03-10 17:56:50,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:50,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:56:50,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261258016] [2021-03-10 17:56:50,451 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:56:50,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:50,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:56:50,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:56:50,452 INFO L87 Difference]: Start difference. First operand 5403 states and 14390 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:51,242 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:56:51,422 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:56:51,653 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:56:51,882 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:56:52,135 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:56:52,385 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:56:52,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:52,598 INFO L93 Difference]: Finished difference Result 11244 states and 28843 transitions. [2021-03-10 17:56:52,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:56:52,599 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:56:52,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:52,609 INFO L225 Difference]: With dead ends: 11244 [2021-03-10 17:56:52,609 INFO L226 Difference]: Without dead ends: 11244 [2021-03-10 17:56:52,609 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1946.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:56:52,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11244 states. [2021-03-10 17:56:52,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11244 to 5416. [2021-03-10 17:56:52,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5416 states, 5414 states have (on average 2.6649427410417434) internal successors, (14428), 5415 states have internal predecessors, (14428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:52,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5416 states to 5416 states and 14428 transitions. [2021-03-10 17:56:52,685 INFO L78 Accepts]: Start accepts. Automaton has 5416 states and 14428 transitions. Word has length 108 [2021-03-10 17:56:52,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:52,685 INFO L480 AbstractCegarLoop]: Abstraction has 5416 states and 14428 transitions. [2021-03-10 17:56:52,685 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:52,686 INFO L276 IsEmpty]: Start isEmpty. Operand 5416 states and 14428 transitions. [2021-03-10 17:56:52,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:56:52,689 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:52,689 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:52,689 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2021-03-10 17:56:52,689 INFO L428 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]=== [2021-03-10 17:56:52,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:52,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1018045125, now seen corresponding path program 193 times [2021-03-10 17:56:52,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:52,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066504509] [2021-03-10 17:56:52,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:52,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:53,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:53,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066504509] [2021-03-10 17:56:53,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:53,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:56:53,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597404321] [2021-03-10 17:56:53,202 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:56:53,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:53,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:56:53,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:56:53,203 INFO L87 Difference]: Start difference. First operand 5416 states and 14428 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:53,989 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2021-03-10 17:56:54,171 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2021-03-10 17:56:54,409 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2021-03-10 17:56:54,654 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2021-03-10 17:56:54,941 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 63 [2021-03-10 17:56:55,207 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2021-03-10 17:56:55,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:55,365 INFO L93 Difference]: Finished difference Result 8459 states and 21851 transitions. [2021-03-10 17:56:55,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:56:55,366 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:56:55,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:55,373 INFO L225 Difference]: With dead ends: 8459 [2021-03-10 17:56:55,373 INFO L226 Difference]: Without dead ends: 8459 [2021-03-10 17:56:55,374 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 2055.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:56:55,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8459 states. [2021-03-10 17:56:55,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8459 to 5351. [2021-03-10 17:56:55,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5351 states, 5349 states have (on average 2.6618059450364555) internal successors, (14238), 5350 states have internal predecessors, (14238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:55,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5351 states to 5351 states and 14238 transitions. [2021-03-10 17:56:55,436 INFO L78 Accepts]: Start accepts. Automaton has 5351 states and 14238 transitions. Word has length 108 [2021-03-10 17:56:55,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:55,436 INFO L480 AbstractCegarLoop]: Abstraction has 5351 states and 14238 transitions. [2021-03-10 17:56:55,436 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:55,436 INFO L276 IsEmpty]: Start isEmpty. Operand 5351 states and 14238 transitions. [2021-03-10 17:56:55,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:56:55,440 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:55,440 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:55,440 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2021-03-10 17:56:55,440 INFO L428 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]=== [2021-03-10 17:56:55,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:55,440 INFO L82 PathProgramCache]: Analyzing trace with hash -1573745899, now seen corresponding path program 194 times [2021-03-10 17:56:55,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:55,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008119826] [2021-03-10 17:56:55,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:55,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:56,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:56,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008119826] [2021-03-10 17:56:56,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:56,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:56:56,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363907016] [2021-03-10 17:56:56,020 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:56:56,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:56,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:56:56,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:56:56,020 INFO L87 Difference]: Start difference. First operand 5351 states and 14238 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:56,647 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2021-03-10 17:56:56,843 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2021-03-10 17:56:57,035 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2021-03-10 17:56:57,257 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2021-03-10 17:56:57,497 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2021-03-10 17:56:57,807 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-03-10 17:56:58,093 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2021-03-10 17:56:58,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:58,318 INFO L93 Difference]: Finished difference Result 12527 states and 32555 transitions. [2021-03-10 17:56:58,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:56:58,319 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:56:58,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:58,331 INFO L225 Difference]: With dead ends: 12527 [2021-03-10 17:56:58,331 INFO L226 Difference]: Without dead ends: 12527 [2021-03-10 17:56:58,331 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2132.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:56:58,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12527 states. [2021-03-10 17:56:58,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12527 to 5403. [2021-03-10 17:56:58,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5403 states, 5401 states have (on average 2.6643214219588964) internal successors, (14390), 5402 states have internal predecessors, (14390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:58,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5403 states to 5403 states and 14390 transitions. [2021-03-10 17:56:58,416 INFO L78 Accepts]: Start accepts. Automaton has 5403 states and 14390 transitions. Word has length 108 [2021-03-10 17:56:58,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:58,416 INFO L480 AbstractCegarLoop]: Abstraction has 5403 states and 14390 transitions. [2021-03-10 17:56:58,416 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:58,416 INFO L276 IsEmpty]: Start isEmpty. Operand 5403 states and 14390 transitions. [2021-03-10 17:56:58,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:56:58,420 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:58,420 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:58,420 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2021-03-10 17:56:58,420 INFO L428 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]=== [2021-03-10 17:56:58,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:58,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1616342451, now seen corresponding path program 195 times [2021-03-10 17:56:58,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:58,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744350592] [2021-03-10 17:56:58,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:58,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:58,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:58,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744350592] [2021-03-10 17:56:58,988 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:58,988 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:56:58,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856468753] [2021-03-10 17:56:58,988 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:56:58,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:58,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:56:58,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:56:58,989 INFO L87 Difference]: Start difference. First operand 5403 states and 14390 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:59,488 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2021-03-10 17:56:59,792 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:56:59,963 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:57:00,157 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:57:00,424 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:57:00,671 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:57:00,938 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:57:01,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:01,165 INFO L93 Difference]: Finished difference Result 15254 states and 39389 transitions. [2021-03-10 17:57:01,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:57:01,166 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:57:01,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:01,181 INFO L225 Difference]: With dead ends: 15254 [2021-03-10 17:57:01,181 INFO L226 Difference]: Without dead ends: 15254 [2021-03-10 17:57:01,181 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2040.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:57:01,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15254 states. [2021-03-10 17:57:01,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15254 to 5416. [2021-03-10 17:57:01,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5416 states, 5414 states have (on average 2.6649427410417434) internal successors, (14428), 5415 states have internal predecessors, (14428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:01,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5416 states to 5416 states and 14428 transitions. [2021-03-10 17:57:01,284 INFO L78 Accepts]: Start accepts. Automaton has 5416 states and 14428 transitions. Word has length 108 [2021-03-10 17:57:01,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:01,284 INFO L480 AbstractCegarLoop]: Abstraction has 5416 states and 14428 transitions. [2021-03-10 17:57:01,284 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:01,284 INFO L276 IsEmpty]: Start isEmpty. Operand 5416 states and 14428 transitions. [2021-03-10 17:57:01,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:57:01,288 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:01,288 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:01,288 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2021-03-10 17:57:01,288 INFO L428 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]=== [2021-03-10 17:57:01,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:01,288 INFO L82 PathProgramCache]: Analyzing trace with hash 87184633, now seen corresponding path program 196 times [2021-03-10 17:57:01,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:01,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139750099] [2021-03-10 17:57:01,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:01,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:01,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:01,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139750099] [2021-03-10 17:57:01,852 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:01,852 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:57:01,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789469627] [2021-03-10 17:57:01,853 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:57:01,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:01,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:57:01,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:57:01,853 INFO L87 Difference]: Start difference. First operand 5416 states and 14428 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:02,511 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2021-03-10 17:57:02,707 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2021-03-10 17:57:02,900 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2021-03-10 17:57:03,123 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2021-03-10 17:57:03,422 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2021-03-10 17:57:03,692 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-03-10 17:57:03,984 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2021-03-10 17:57:04,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:04,185 INFO L93 Difference]: Finished difference Result 13478 states and 34722 transitions. [2021-03-10 17:57:04,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:57:04,186 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:57:04,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:04,226 INFO L225 Difference]: With dead ends: 13478 [2021-03-10 17:57:04,226 INFO L226 Difference]: Without dead ends: 13478 [2021-03-10 17:57:04,226 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2184.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:57:04,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13478 states. [2021-03-10 17:57:04,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13478 to 5377. [2021-03-10 17:57:04,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5377 states, 5375 states have (on average 2.6630697674418604) internal successors, (14314), 5376 states have internal predecessors, (14314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:04,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5377 states to 5377 states and 14314 transitions. [2021-03-10 17:57:04,303 INFO L78 Accepts]: Start accepts. Automaton has 5377 states and 14314 transitions. Word has length 108 [2021-03-10 17:57:04,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:04,303 INFO L480 AbstractCegarLoop]: Abstraction has 5377 states and 14314 transitions. [2021-03-10 17:57:04,303 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:04,303 INFO L276 IsEmpty]: Start isEmpty. Operand 5377 states and 14314 transitions. [2021-03-10 17:57:04,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:57:04,307 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:04,307 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:04,307 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2021-03-10 17:57:04,307 INFO L428 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]=== [2021-03-10 17:57:04,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:04,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1323580375, now seen corresponding path program 197 times [2021-03-10 17:57:04,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:04,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568063881] [2021-03-10 17:57:04,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:04,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:04,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:04,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568063881] [2021-03-10 17:57:04,817 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:04,817 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:57:04,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715436766] [2021-03-10 17:57:04,817 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:57:04,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:04,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:57:04,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:57:04,818 INFO L87 Difference]: Start difference. First operand 5377 states and 14314 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:05,614 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:57:05,788 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:57:06,015 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:57:06,245 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:57:06,487 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:57:06,761 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:57:06,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:06,954 INFO L93 Difference]: Finished difference Result 10260 states and 26635 transitions. [2021-03-10 17:57:06,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:57:06,955 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:57:06,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:06,965 INFO L225 Difference]: With dead ends: 10260 [2021-03-10 17:57:06,965 INFO L226 Difference]: Without dead ends: 10260 [2021-03-10 17:57:06,965 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1973.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:57:06,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10260 states. [2021-03-10 17:57:07,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10260 to 5403. [2021-03-10 17:57:07,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5403 states, 5401 states have (on average 2.6643214219588964) internal successors, (14390), 5402 states have internal predecessors, (14390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:07,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5403 states to 5403 states and 14390 transitions. [2021-03-10 17:57:07,041 INFO L78 Accepts]: Start accepts. Automaton has 5403 states and 14390 transitions. Word has length 108 [2021-03-10 17:57:07,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:07,042 INFO L480 AbstractCegarLoop]: Abstraction has 5403 states and 14390 transitions. [2021-03-10 17:57:07,042 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:07,042 INFO L276 IsEmpty]: Start isEmpty. Operand 5403 states and 14390 transitions. [2021-03-10 17:57:07,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:57:07,045 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:07,045 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:07,046 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2021-03-10 17:57:07,046 INFO L428 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]=== [2021-03-10 17:57:07,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:07,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1033414125, now seen corresponding path program 198 times [2021-03-10 17:57:07,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:07,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777311982] [2021-03-10 17:57:07,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:07,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:07,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:07,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777311982] [2021-03-10 17:57:07,567 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:07,567 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:57:07,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843922398] [2021-03-10 17:57:07,568 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:57:07,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:07,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:57:07,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:57:07,568 INFO L87 Difference]: Start difference. First operand 5403 states and 14390 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:08,383 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:57:08,562 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:57:08,804 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:57:09,062 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:57:09,331 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:57:09,595 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:57:09,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:09,815 INFO L93 Difference]: Finished difference Result 10987 states and 28264 transitions. [2021-03-10 17:57:09,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:57:09,816 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:57:09,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:09,827 INFO L225 Difference]: With dead ends: 10987 [2021-03-10 17:57:09,827 INFO L226 Difference]: Without dead ends: 10987 [2021-03-10 17:57:09,827 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1979.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:57:09,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10987 states. [2021-03-10 17:57:09,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10987 to 5390. [2021-03-10 17:57:09,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5390 states, 5388 states have (on average 2.6636971046770603) internal successors, (14352), 5389 states have internal predecessors, (14352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:09,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5390 states to 5390 states and 14352 transitions. [2021-03-10 17:57:09,907 INFO L78 Accepts]: Start accepts. Automaton has 5390 states and 14352 transitions. Word has length 108 [2021-03-10 17:57:09,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:09,907 INFO L480 AbstractCegarLoop]: Abstraction has 5390 states and 14352 transitions. [2021-03-10 17:57:09,907 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:09,907 INFO L276 IsEmpty]: Start isEmpty. Operand 5390 states and 14352 transitions. [2021-03-10 17:57:09,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:57:09,910 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:09,910 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:09,911 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2021-03-10 17:57:09,911 INFO L428 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]=== [2021-03-10 17:57:09,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:09,911 INFO L82 PathProgramCache]: Analyzing trace with hash 2048906735, now seen corresponding path program 199 times [2021-03-10 17:57:09,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:09,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322975413] [2021-03-10 17:57:09,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:09,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:10,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:10,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322975413] [2021-03-10 17:57:10,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:10,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:57:10,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046376505] [2021-03-10 17:57:10,445 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:57:10,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:10,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:57:10,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:57:10,445 INFO L87 Difference]: Start difference. First operand 5390 states and 14352 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:11,277 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:57:11,454 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:57:11,682 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:57:11,914 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:57:12,174 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:57:12,435 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:57:12,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:12,649 INFO L93 Difference]: Finished difference Result 13914 states and 35646 transitions. [2021-03-10 17:57:12,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:57:12,651 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:57:12,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:12,664 INFO L225 Difference]: With dead ends: 13914 [2021-03-10 17:57:12,664 INFO L226 Difference]: Without dead ends: 13914 [2021-03-10 17:57:12,664 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2026.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:57:12,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13914 states. [2021-03-10 17:57:12,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13914 to 5403. [2021-03-10 17:57:12,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5403 states, 5401 states have (on average 2.6643214219588964) internal successors, (14390), 5402 states have internal predecessors, (14390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:12,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5403 states to 5403 states and 14390 transitions. [2021-03-10 17:57:12,760 INFO L78 Accepts]: Start accepts. Automaton has 5403 states and 14390 transitions. Word has length 108 [2021-03-10 17:57:12,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:12,760 INFO L480 AbstractCegarLoop]: Abstraction has 5403 states and 14390 transitions. [2021-03-10 17:57:12,760 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:12,760 INFO L276 IsEmpty]: Start isEmpty. Operand 5403 states and 14390 transitions. [2021-03-10 17:57:12,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:57:12,764 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:12,764 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:12,764 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2021-03-10 17:57:12,764 INFO L428 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]=== [2021-03-10 17:57:12,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:12,764 INFO L82 PathProgramCache]: Analyzing trace with hash 519748917, now seen corresponding path program 200 times [2021-03-10 17:57:12,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:12,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456759677] [2021-03-10 17:57:12,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:12,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:13,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:13,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456759677] [2021-03-10 17:57:13,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:13,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:57:13,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778235212] [2021-03-10 17:57:13,291 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:57:13,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:13,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:57:13,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:57:13,291 INFO L87 Difference]: Start difference. First operand 5403 states and 14390 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:13,965 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2021-03-10 17:57:14,164 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2021-03-10 17:57:14,359 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2021-03-10 17:57:14,613 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2021-03-10 17:57:14,871 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2021-03-10 17:57:15,142 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 62 [2021-03-10 17:57:15,426 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2021-03-10 17:57:15,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:15,613 INFO L93 Difference]: Finished difference Result 11129 states and 28654 transitions. [2021-03-10 17:57:15,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:57:15,614 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:57:15,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:15,624 INFO L225 Difference]: With dead ends: 11129 [2021-03-10 17:57:15,624 INFO L226 Difference]: Without dead ends: 11129 [2021-03-10 17:57:15,624 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2138.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:57:15,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11129 states. [2021-03-10 17:57:15,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11129 to 5351. [2021-03-10 17:57:15,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5351 states, 5349 states have (on average 2.6618059450364555) internal successors, (14238), 5350 states have internal predecessors, (14238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:15,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5351 states to 5351 states and 14238 transitions. [2021-03-10 17:57:15,699 INFO L78 Accepts]: Start accepts. Automaton has 5351 states and 14238 transitions. Word has length 108 [2021-03-10 17:57:15,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:15,699 INFO L480 AbstractCegarLoop]: Abstraction has 5351 states and 14238 transitions. [2021-03-10 17:57:15,699 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:15,699 INFO L276 IsEmpty]: Start isEmpty. Operand 5351 states and 14238 transitions. [2021-03-10 17:57:15,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:57:15,703 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:15,703 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:15,703 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2021-03-10 17:57:15,703 INFO L428 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]=== [2021-03-10 17:57:15,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:15,703 INFO L82 PathProgramCache]: Analyzing trace with hash 304839895, now seen corresponding path program 201 times [2021-03-10 17:57:15,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:15,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366245643] [2021-03-10 17:57:15,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:15,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:16,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:16,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366245643] [2021-03-10 17:57:16,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:16,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:57:16,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627700063] [2021-03-10 17:57:16,308 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:57:16,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:16,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:57:16,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:57:16,308 INFO L87 Difference]: Start difference. First operand 5351 states and 14238 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:16,999 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2021-03-10 17:57:17,211 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2021-03-10 17:57:17,421 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 50 [2021-03-10 17:57:17,647 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2021-03-10 17:57:17,902 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2021-03-10 17:57:18,228 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-03-10 17:57:18,555 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2021-03-10 17:57:18,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:18,786 INFO L93 Difference]: Finished difference Result 11291 states and 29616 transitions. [2021-03-10 17:57:18,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:57:18,787 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:57:18,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:18,798 INFO L225 Difference]: With dead ends: 11291 [2021-03-10 17:57:18,798 INFO L226 Difference]: Without dead ends: 11291 [2021-03-10 17:57:18,798 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2291.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:57:18,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11291 states. [2021-03-10 17:57:18,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11291 to 5377. [2021-03-10 17:57:18,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5377 states, 5375 states have (on average 2.6630697674418604) internal successors, (14314), 5376 states have internal predecessors, (14314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:18,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5377 states to 5377 states and 14314 transitions. [2021-03-10 17:57:18,883 INFO L78 Accepts]: Start accepts. Automaton has 5377 states and 14314 transitions. Word has length 108 [2021-03-10 17:57:18,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:18,883 INFO L480 AbstractCegarLoop]: Abstraction has 5377 states and 14314 transitions. [2021-03-10 17:57:18,883 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:18,883 INFO L276 IsEmpty]: Start isEmpty. Operand 5377 states and 14314 transitions. [2021-03-10 17:57:18,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:57:18,887 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:18,887 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:18,887 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2021-03-10 17:57:18,887 INFO L428 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]=== [2021-03-10 17:57:18,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:18,887 INFO L82 PathProgramCache]: Analyzing trace with hash -800039051, now seen corresponding path program 202 times [2021-03-10 17:57:18,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:18,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506617775] [2021-03-10 17:57:18,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:18,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:19,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:19,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506617775] [2021-03-10 17:57:19,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:19,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:57:19,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726412629] [2021-03-10 17:57:19,486 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:57:19,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:19,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:57:19,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:57:19,487 INFO L87 Difference]: Start difference. First operand 5377 states and 14314 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:20,337 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:57:20,527 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-03-10 17:57:20,726 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:57:21,018 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:57:21,286 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:57:21,561 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:57:21,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:21,827 INFO L93 Difference]: Finished difference Result 10823 states and 28000 transitions. [2021-03-10 17:57:21,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:57:21,828 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:57:21,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:21,838 INFO L225 Difference]: With dead ends: 10823 [2021-03-10 17:57:21,838 INFO L226 Difference]: Without dead ends: 10823 [2021-03-10 17:57:21,838 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2095.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:57:21,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10823 states. [2021-03-10 17:57:21,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10823 to 5390. [2021-03-10 17:57:21,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5390 states, 5388 states have (on average 2.6636971046770603) internal successors, (14352), 5389 states have internal predecessors, (14352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:21,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5390 states to 5390 states and 14352 transitions. [2021-03-10 17:57:21,911 INFO L78 Accepts]: Start accepts. Automaton has 5390 states and 14352 transitions. Word has length 108 [2021-03-10 17:57:21,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:21,911 INFO L480 AbstractCegarLoop]: Abstraction has 5390 states and 14352 transitions. [2021-03-10 17:57:21,911 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:21,911 INFO L276 IsEmpty]: Start isEmpty. Operand 5390 states and 14352 transitions. [2021-03-10 17:57:21,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:57:21,915 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:21,915 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:21,915 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2021-03-10 17:57:21,915 INFO L428 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]=== [2021-03-10 17:57:21,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:21,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1965770427, now seen corresponding path program 203 times [2021-03-10 17:57:21,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:21,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678695031] [2021-03-10 17:57:21,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:21,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:22,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:22,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678695031] [2021-03-10 17:57:22,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:22,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:57:22,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731232179] [2021-03-10 17:57:22,506 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:57:22,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:22,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:57:22,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:57:22,506 INFO L87 Difference]: Start difference. First operand 5390 states and 14352 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:23,198 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2021-03-10 17:57:23,427 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2021-03-10 17:57:23,645 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 50 [2021-03-10 17:57:23,876 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2021-03-10 17:57:24,204 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2021-03-10 17:57:24,504 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-03-10 17:57:24,817 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2021-03-10 17:57:25,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:25,043 INFO L93 Difference]: Finished difference Result 10705 states and 27694 transitions. [2021-03-10 17:57:25,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:57:25,044 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:57:25,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:25,054 INFO L225 Difference]: With dead ends: 10705 [2021-03-10 17:57:25,054 INFO L226 Difference]: Without dead ends: 10705 [2021-03-10 17:57:25,054 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2297.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:57:25,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10705 states. [2021-03-10 17:57:25,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10705 to 5351. [2021-03-10 17:57:25,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5351 states, 5349 states have (on average 2.6618059450364555) internal successors, (14238), 5350 states have internal predecessors, (14238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:25,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5351 states to 5351 states and 14238 transitions. [2021-03-10 17:57:25,128 INFO L78 Accepts]: Start accepts. Automaton has 5351 states and 14238 transitions. Word has length 108 [2021-03-10 17:57:25,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:25,128 INFO L480 AbstractCegarLoop]: Abstraction has 5351 states and 14238 transitions. [2021-03-10 17:57:25,128 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:25,128 INFO L276 IsEmpty]: Start isEmpty. Operand 5351 states and 14238 transitions. [2021-03-10 17:57:25,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:57:25,132 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:25,132 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:25,132 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2021-03-10 17:57:25,132 INFO L428 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]=== [2021-03-10 17:57:25,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:25,132 INFO L82 PathProgramCache]: Analyzing trace with hash -59671691, now seen corresponding path program 204 times [2021-03-10 17:57:25,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:25,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764388339] [2021-03-10 17:57:25,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:25,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:25,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:25,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764388339] [2021-03-10 17:57:25,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:25,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:57:25,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005225281] [2021-03-10 17:57:25,773 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:57:25,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:25,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:57:25,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:57:25,774 INFO L87 Difference]: Start difference. First operand 5351 states and 14238 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:26,468 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2021-03-10 17:57:26,683 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2021-03-10 17:57:26,903 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 50 [2021-03-10 17:57:27,130 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 55 [2021-03-10 17:57:27,387 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2021-03-10 17:57:27,751 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-03-10 17:57:28,077 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2021-03-10 17:57:28,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:28,314 INFO L93 Difference]: Finished difference Result 7812 states and 20386 transitions. [2021-03-10 17:57:28,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:57:28,315 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:57:28,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:28,322 INFO L225 Difference]: With dead ends: 7812 [2021-03-10 17:57:28,322 INFO L226 Difference]: Without dead ends: 7812 [2021-03-10 17:57:28,322 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2315.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:57:28,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7812 states. [2021-03-10 17:57:28,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7812 to 5243. [2021-03-10 17:57:28,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5243 states, 5241 states have (on average 2.6571265025758444) internal successors, (13926), 5242 states have internal predecessors, (13926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:28,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5243 states to 5243 states and 13926 transitions. [2021-03-10 17:57:28,407 INFO L78 Accepts]: Start accepts. Automaton has 5243 states and 13926 transitions. Word has length 108 [2021-03-10 17:57:28,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:28,407 INFO L480 AbstractCegarLoop]: Abstraction has 5243 states and 13926 transitions. [2021-03-10 17:57:28,407 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:28,407 INFO L276 IsEmpty]: Start isEmpty. Operand 5243 states and 13926 transitions. [2021-03-10 17:57:28,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:57:28,411 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:28,411 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:28,411 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2021-03-10 17:57:28,411 INFO L428 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]=== [2021-03-10 17:57:28,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:28,412 INFO L82 PathProgramCache]: Analyzing trace with hash -44383947, now seen corresponding path program 205 times [2021-03-10 17:57:28,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:28,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517176580] [2021-03-10 17:57:28,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:28,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:29,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:29,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517176580] [2021-03-10 17:57:29,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:29,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:57:29,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867841099] [2021-03-10 17:57:29,006 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:57:29,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:29,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:57:29,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:57:29,006 INFO L87 Difference]: Start difference. First operand 5243 states and 13926 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:29,778 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2021-03-10 17:57:29,976 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2021-03-10 17:57:30,240 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2021-03-10 17:57:30,502 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2021-03-10 17:57:30,763 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2021-03-10 17:57:31,094 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2021-03-10 17:57:31,408 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2021-03-10 17:57:31,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:31,663 INFO L93 Difference]: Finished difference Result 11858 states and 30719 transitions. [2021-03-10 17:57:31,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:57:31,664 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:57:31,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:31,675 INFO L225 Difference]: With dead ends: 11858 [2021-03-10 17:57:31,675 INFO L226 Difference]: Without dead ends: 11858 [2021-03-10 17:57:31,675 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2368.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:57:31,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11858 states. [2021-03-10 17:57:31,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11858 to 5347. [2021-03-10 17:57:31,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5347 states, 5345 states have (on average 2.6623012160898036) internal successors, (14230), 5346 states have internal predecessors, (14230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:31,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5347 states to 5347 states and 14230 transitions. [2021-03-10 17:57:31,755 INFO L78 Accepts]: Start accepts. Automaton has 5347 states and 14230 transitions. Word has length 108 [2021-03-10 17:57:31,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:31,755 INFO L480 AbstractCegarLoop]: Abstraction has 5347 states and 14230 transitions. [2021-03-10 17:57:31,755 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:31,755 INFO L276 IsEmpty]: Start isEmpty. Operand 5347 states and 14230 transitions. [2021-03-10 17:57:31,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:57:31,759 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:31,759 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:31,759 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2021-03-10 17:57:31,759 INFO L428 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]=== [2021-03-10 17:57:31,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:31,760 INFO L82 PathProgramCache]: Analyzing trace with hash -1149262893, now seen corresponding path program 206 times [2021-03-10 17:57:31,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:31,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294358239] [2021-03-10 17:57:31,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:31,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:32,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:32,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294358239] [2021-03-10 17:57:32,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:32,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:57:32,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795311789] [2021-03-10 17:57:32,355 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:57:32,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:32,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:57:32,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:57:32,355 INFO L87 Difference]: Start difference. First operand 5347 states and 14230 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:33,178 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:57:33,391 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:57:33,600 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:57:33,899 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:57:34,161 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:57:34,444 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:57:34,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:34,677 INFO L93 Difference]: Finished difference Result 14585 states and 37553 transitions. [2021-03-10 17:57:34,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:57:34,678 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:57:34,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:34,692 INFO L225 Difference]: With dead ends: 14585 [2021-03-10 17:57:34,692 INFO L226 Difference]: Without dead ends: 14585 [2021-03-10 17:57:34,693 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2127.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:57:34,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14585 states. [2021-03-10 17:57:34,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14585 to 5360. [2021-03-10 17:57:34,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5360 states, 5358 states have (on average 2.662933930571109) internal successors, (14268), 5359 states have internal predecessors, (14268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:34,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5360 states to 5360 states and 14268 transitions. [2021-03-10 17:57:34,787 INFO L78 Accepts]: Start accepts. Automaton has 5360 states and 14268 transitions. Word has length 108 [2021-03-10 17:57:34,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:34,787 INFO L480 AbstractCegarLoop]: Abstraction has 5360 states and 14268 transitions. [2021-03-10 17:57:34,787 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:34,787 INFO L276 IsEmpty]: Start isEmpty. Operand 5360 states and 14268 transitions. [2021-03-10 17:57:34,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:57:34,791 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:34,791 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:34,791 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2021-03-10 17:57:34,791 INFO L428 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]=== [2021-03-10 17:57:34,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:34,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1616546585, now seen corresponding path program 207 times [2021-03-10 17:57:34,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:34,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369193914] [2021-03-10 17:57:34,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:34,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:35,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:35,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369193914] [2021-03-10 17:57:35,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:35,365 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:57:35,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878814945] [2021-03-10 17:57:35,365 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:57:35,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:35,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:57:35,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:57:35,366 INFO L87 Difference]: Start difference. First operand 5360 states and 14268 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:36,071 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2021-03-10 17:57:36,255 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2021-03-10 17:57:36,503 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2021-03-10 17:57:36,742 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2021-03-10 17:57:37,065 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2021-03-10 17:57:37,350 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2021-03-10 17:57:37,661 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2021-03-10 17:57:37,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:37,905 INFO L93 Difference]: Finished difference Result 12809 states and 32886 transitions. [2021-03-10 17:57:37,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:57:37,907 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:57:37,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:37,918 INFO L225 Difference]: With dead ends: 12809 [2021-03-10 17:57:37,918 INFO L226 Difference]: Without dead ends: 12809 [2021-03-10 17:57:37,919 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2232.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:57:37,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12809 states. [2021-03-10 17:57:37,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12809 to 5321. [2021-03-10 17:57:37,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5321 states, 5319 states have (on average 2.661026508742245) internal successors, (14154), 5320 states have internal predecessors, (14154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:38,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5321 states to 5321 states and 14154 transitions. [2021-03-10 17:57:38,000 INFO L78 Accepts]: Start accepts. Automaton has 5321 states and 14154 transitions. Word has length 108 [2021-03-10 17:57:38,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:38,001 INFO L480 AbstractCegarLoop]: Abstraction has 5321 states and 14154 transitions. [2021-03-10 17:57:38,001 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:38,001 INFO L276 IsEmpty]: Start isEmpty. Operand 5321 states and 14154 transitions. [2021-03-10 17:57:38,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:57:38,004 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:38,004 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:38,004 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2021-03-10 17:57:38,005 INFO L428 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]=== [2021-03-10 17:57:38,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:38,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1442024969, now seen corresponding path program 208 times [2021-03-10 17:57:38,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:38,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933848106] [2021-03-10 17:57:38,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:38,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:38,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:38,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933848106] [2021-03-10 17:57:38,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:38,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:57:38,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611828793] [2021-03-10 17:57:38,757 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:57:38,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:38,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:57:38,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:57:38,757 INFO L87 Difference]: Start difference. First operand 5321 states and 14154 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:39,617 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:57:39,845 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:57:40,112 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:57:40,357 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:57:40,622 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:57:40,921 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:57:41,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:41,178 INFO L93 Difference]: Finished difference Result 14566 states and 37592 transitions. [2021-03-10 17:57:41,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:57:41,179 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:57:41,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:41,193 INFO L225 Difference]: With dead ends: 14566 [2021-03-10 17:57:41,194 INFO L226 Difference]: Without dead ends: 14566 [2021-03-10 17:57:41,194 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2283.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:57:41,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14566 states. [2021-03-10 17:57:41,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14566 to 5347. [2021-03-10 17:57:41,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5347 states, 5345 states have (on average 2.6623012160898036) internal successors, (14230), 5346 states have internal predecessors, (14230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:41,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5347 states to 5347 states and 14230 transitions. [2021-03-10 17:57:41,289 INFO L78 Accepts]: Start accepts. Automaton has 5347 states and 14230 transitions. Word has length 108 [2021-03-10 17:57:41,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:41,289 INFO L480 AbstractCegarLoop]: Abstraction has 5347 states and 14230 transitions. [2021-03-10 17:57:41,289 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:41,289 INFO L276 IsEmpty]: Start isEmpty. Operand 5347 states and 14230 transitions. [2021-03-10 17:57:41,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:57:41,293 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:41,293 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:41,293 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2021-03-10 17:57:41,293 INFO L428 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]=== [2021-03-10 17:57:41,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:41,293 INFO L82 PathProgramCache]: Analyzing trace with hash 495947827, now seen corresponding path program 209 times [2021-03-10 17:57:41,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:41,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45361980] [2021-03-10 17:57:41,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:41,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:41,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:41,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45361980] [2021-03-10 17:57:41,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:41,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:57:41,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75627497] [2021-03-10 17:57:41,869 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:57:41,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:41,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:57:41,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:57:41,870 INFO L87 Difference]: Start difference. First operand 5347 states and 14230 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:42,699 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:57:42,924 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:57:43,175 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:57:43,416 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:57:43,697 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:57:43,988 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:57:44,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:44,211 INFO L93 Difference]: Finished difference Result 15293 states and 39221 transitions. [2021-03-10 17:57:44,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:57:44,213 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:57:44,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:44,226 INFO L225 Difference]: With dead ends: 15293 [2021-03-10 17:57:44,226 INFO L226 Difference]: Without dead ends: 15293 [2021-03-10 17:57:44,227 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2154.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:57:44,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15293 states. [2021-03-10 17:57:44,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15293 to 5334. [2021-03-10 17:57:44,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5334 states, 5332 states have (on average 2.6616654163540887) internal successors, (14192), 5333 states have internal predecessors, (14192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:44,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5334 states to 5334 states and 14192 transitions. [2021-03-10 17:57:44,324 INFO L78 Accepts]: Start accepts. Automaton has 5334 states and 14192 transitions. Word has length 108 [2021-03-10 17:57:44,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:44,324 INFO L480 AbstractCegarLoop]: Abstraction has 5334 states and 14192 transitions. [2021-03-10 17:57:44,324 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:44,324 INFO L276 IsEmpty]: Start isEmpty. Operand 5334 states and 14192 transitions. [2021-03-10 17:57:44,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:57:44,328 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:44,328 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:44,328 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2021-03-10 17:57:44,328 INFO L428 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]=== [2021-03-10 17:57:44,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:44,328 INFO L82 PathProgramCache]: Analyzing trace with hash -716698609, now seen corresponding path program 210 times [2021-03-10 17:57:44,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:44,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268874488] [2021-03-10 17:57:44,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:44,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:44,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:44,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268874488] [2021-03-10 17:57:44,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:44,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:57:44,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852999084] [2021-03-10 17:57:44,909 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:57:44,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:44,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:57:44,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:57:44,909 INFO L87 Difference]: Start difference. First operand 5334 states and 14192 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:45,587 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 17:57:45,755 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:57:45,977 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:57:46,235 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:57:46,486 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:57:46,763 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:57:47,043 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:57:47,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:47,290 INFO L93 Difference]: Finished difference Result 16736 states and 42632 transitions. [2021-03-10 17:57:47,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:57:47,292 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:57:47,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:47,308 INFO L225 Difference]: With dead ends: 16736 [2021-03-10 17:57:47,308 INFO L226 Difference]: Without dead ends: 16736 [2021-03-10 17:57:47,308 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2166.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:57:47,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16736 states. [2021-03-10 17:57:47,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16736 to 5347. [2021-03-10 17:57:47,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5347 states, 5345 states have (on average 2.6623012160898036) internal successors, (14230), 5346 states have internal predecessors, (14230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:47,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5347 states to 5347 states and 14230 transitions. [2021-03-10 17:57:47,411 INFO L78 Accepts]: Start accepts. Automaton has 5347 states and 14230 transitions. Word has length 108 [2021-03-10 17:57:47,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:47,411 INFO L480 AbstractCegarLoop]: Abstraction has 5347 states and 14230 transitions. [2021-03-10 17:57:47,411 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:47,411 INFO L276 IsEmpty]: Start isEmpty. Operand 5347 states and 14230 transitions. [2021-03-10 17:57:47,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:57:47,414 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:47,414 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:47,415 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2021-03-10 17:57:47,415 INFO L428 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]=== [2021-03-10 17:57:47,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:47,415 INFO L82 PathProgramCache]: Analyzing trace with hash 2049110869, now seen corresponding path program 211 times [2021-03-10 17:57:47,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:47,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730127904] [2021-03-10 17:57:47,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:47,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:47,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:47,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730127904] [2021-03-10 17:57:47,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:47,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:57:47,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176420547] [2021-03-10 17:57:47,979 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:57:47,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:47,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:57:47,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:57:47,979 INFO L87 Difference]: Start difference. First operand 5347 states and 14230 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:48,708 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2021-03-10 17:57:48,919 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2021-03-10 17:57:49,191 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2021-03-10 17:57:49,517 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2021-03-10 17:57:49,814 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 55 [2021-03-10 17:57:50,140 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 60 [2021-03-10 17:57:50,472 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 66 [2021-03-10 17:57:50,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:50,732 INFO L93 Difference]: Finished difference Result 13951 states and 35640 transitions. [2021-03-10 17:57:50,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:57:50,734 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:57:50,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:50,747 INFO L225 Difference]: With dead ends: 13951 [2021-03-10 17:57:50,747 INFO L226 Difference]: Without dead ends: 13951 [2021-03-10 17:57:50,747 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2361.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:57:50,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13951 states. [2021-03-10 17:57:50,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13951 to 5295. [2021-03-10 17:57:50,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5293 states have (on average 2.6597392782920837) internal successors, (14078), 5294 states have internal predecessors, (14078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:50,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 14078 transitions. [2021-03-10 17:57:50,834 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 14078 transitions. Word has length 108 [2021-03-10 17:57:50,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:50,834 INFO L480 AbstractCegarLoop]: Abstraction has 5295 states and 14078 transitions. [2021-03-10 17:57:50,834 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:50,834 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 14078 transitions. [2021-03-10 17:57:50,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:57:50,837 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:50,837 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:50,837 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2021-03-10 17:57:50,838 INFO L428 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]=== [2021-03-10 17:57:50,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:50,838 INFO L82 PathProgramCache]: Analyzing trace with hash 1389152787, now seen corresponding path program 212 times [2021-03-10 17:57:50,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:50,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301695624] [2021-03-10 17:57:50,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:50,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:51,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:51,430 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301695624] [2021-03-10 17:57:51,430 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:51,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:57:51,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978548816] [2021-03-10 17:57:51,430 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:57:51,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:51,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:57:51,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:57:51,431 INFO L87 Difference]: Start difference. First operand 5295 states and 14078 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:52,314 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:57:52,544 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:57:52,762 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:57:53,002 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:57:53,316 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:57:53,616 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:57:53,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:53,857 INFO L93 Difference]: Finished difference Result 10622 states and 27645 transitions. [2021-03-10 17:57:53,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:57:53,858 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:57:53,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:53,868 INFO L225 Difference]: With dead ends: 10622 [2021-03-10 17:57:53,868 INFO L226 Difference]: Without dead ends: 10622 [2021-03-10 17:57:53,868 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2142.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:57:53,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10622 states. [2021-03-10 17:57:53,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10622 to 5347. [2021-03-10 17:57:53,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5347 states, 5345 states have (on average 2.6623012160898036) internal successors, (14230), 5346 states have internal predecessors, (14230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:53,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5347 states to 5347 states and 14230 transitions. [2021-03-10 17:57:53,981 INFO L78 Accepts]: Start accepts. Automaton has 5347 states and 14230 transitions. Word has length 108 [2021-03-10 17:57:53,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:53,982 INFO L480 AbstractCegarLoop]: Abstraction has 5347 states and 14230 transitions. [2021-03-10 17:57:53,982 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:53,982 INFO L276 IsEmpty]: Start isEmpty. Operand 5347 states and 14230 transitions. [2021-03-10 17:57:53,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:57:53,986 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:53,986 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:53,986 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2021-03-10 17:57:53,986 INFO L428 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]=== [2021-03-10 17:57:53,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:53,986 INFO L82 PathProgramCache]: Analyzing trace with hash -1176675369, now seen corresponding path program 213 times [2021-03-10 17:57:53,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:53,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532908110] [2021-03-10 17:57:53,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:53,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:54,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:54,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532908110] [2021-03-10 17:57:54,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:54,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:57:54,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516180976] [2021-03-10 17:57:54,595 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:57:54,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:54,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:57:54,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:57:54,596 INFO L87 Difference]: Start difference. First operand 5347 states and 14230 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:55,464 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:57:55,697 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:57:55,914 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:57:56,218 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:57:56,481 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:57:56,781 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:57:57,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:57,038 INFO L93 Difference]: Finished difference Result 13067 states and 33866 transitions. [2021-03-10 17:57:57,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:57:57,040 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:57:57,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:57,052 INFO L225 Difference]: With dead ends: 13067 [2021-03-10 17:57:57,052 INFO L226 Difference]: Without dead ends: 13067 [2021-03-10 17:57:57,052 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2161.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:57:57,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13067 states. [2021-03-10 17:57:57,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13067 to 5360. [2021-03-10 17:57:57,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5360 states, 5358 states have (on average 2.662933930571109) internal successors, (14268), 5359 states have internal predecessors, (14268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:57,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5360 states to 5360 states and 14268 transitions. [2021-03-10 17:57:57,138 INFO L78 Accepts]: Start accepts. Automaton has 5360 states and 14268 transitions. Word has length 108 [2021-03-10 17:57:57,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:57,139 INFO L480 AbstractCegarLoop]: Abstraction has 5360 states and 14268 transitions. [2021-03-10 17:57:57,139 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:57,139 INFO L276 IsEmpty]: Start isEmpty. Operand 5360 states and 14268 transitions. [2021-03-10 17:57:57,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:57:57,142 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:57,142 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:57,142 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2021-03-10 17:57:57,142 INFO L428 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]=== [2021-03-10 17:57:57,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:57,143 INFO L82 PathProgramCache]: Analyzing trace with hash 761297427, now seen corresponding path program 214 times [2021-03-10 17:57:57,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:57,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389818400] [2021-03-10 17:57:57,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:57,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:57,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:57,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389818400] [2021-03-10 17:57:57,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:57,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:57:57,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855810428] [2021-03-10 17:57:57,774 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:57:57,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:57,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:57:57,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:57:57,775 INFO L87 Difference]: Start difference. First operand 5360 states and 14268 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:58,481 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 17:57:58,661 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:57:58,964 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:57:59,201 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:57:59,538 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:57:59,826 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:58:00,118 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:58:00,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:58:00,376 INFO L93 Difference]: Finished difference Result 11409 states and 29429 transitions. [2021-03-10 17:58:00,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:58:00,378 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:58:00,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:58:00,388 INFO L225 Difference]: With dead ends: 11409 [2021-03-10 17:58:00,388 INFO L226 Difference]: Without dead ends: 11409 [2021-03-10 17:58:00,388 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2281.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:58:00,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11409 states. [2021-03-10 17:58:00,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11409 to 5321. [2021-03-10 17:58:00,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5321 states, 5319 states have (on average 2.661026508742245) internal successors, (14154), 5320 states have internal predecessors, (14154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:00,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5321 states to 5321 states and 14154 transitions. [2021-03-10 17:58:00,466 INFO L78 Accepts]: Start accepts. Automaton has 5321 states and 14154 transitions. Word has length 108 [2021-03-10 17:58:00,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:58:00,466 INFO L480 AbstractCegarLoop]: Abstraction has 5321 states and 14154 transitions. [2021-03-10 17:58:00,466 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:00,466 INFO L276 IsEmpty]: Start isEmpty. Operand 5321 states and 14154 transitions. [2021-03-10 17:58:00,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:58:00,470 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:58:00,470 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:58:00,470 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2021-03-10 17:58:00,470 INFO L428 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]=== [2021-03-10 17:58:00,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:58:00,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1417047459, now seen corresponding path program 215 times [2021-03-10 17:58:00,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:58:00,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859371735] [2021-03-10 17:58:00,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:58:00,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:58:01,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:58:01,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859371735] [2021-03-10 17:58:01,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:58:01,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:58:01,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129197754] [2021-03-10 17:58:01,050 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:58:01,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:58:01,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:58:01,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:58:01,050 INFO L87 Difference]: Start difference. First operand 5321 states and 14154 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:01,807 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 17:58:01,990 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:58:02,243 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:58:02,500 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:58:02,756 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:58:03,021 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:58:03,320 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:58:03,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:58:03,592 INFO L93 Difference]: Finished difference Result 12617 states and 32337 transitions. [2021-03-10 17:58:03,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:58:03,594 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:58:03,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:58:03,606 INFO L225 Difference]: With dead ends: 12617 [2021-03-10 17:58:03,606 INFO L226 Difference]: Without dead ends: 12617 [2021-03-10 17:58:03,606 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2217.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:58:03,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12617 states. [2021-03-10 17:58:03,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12617 to 5347. [2021-03-10 17:58:03,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5347 states, 5345 states have (on average 2.6623012160898036) internal successors, (14230), 5346 states have internal predecessors, (14230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:03,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5347 states to 5347 states and 14230 transitions. [2021-03-10 17:58:03,689 INFO L78 Accepts]: Start accepts. Automaton has 5347 states and 14230 transitions. Word has length 108 [2021-03-10 17:58:03,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:58:03,689 INFO L480 AbstractCegarLoop]: Abstraction has 5347 states and 14230 transitions. [2021-03-10 17:58:03,689 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:03,689 INFO L276 IsEmpty]: Start isEmpty. Operand 5347 states and 14230 transitions. [2021-03-10 17:58:03,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:58:03,693 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:58:03,693 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:58:03,693 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2021-03-10 17:58:03,693 INFO L428 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]=== [2021-03-10 17:58:03,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:58:03,693 INFO L82 PathProgramCache]: Analyzing trace with hash 520925337, now seen corresponding path program 216 times [2021-03-10 17:58:03,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:58:03,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994197761] [2021-03-10 17:58:03,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:58:03,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:58:04,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:58:04,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994197761] [2021-03-10 17:58:04,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:58:04,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:58:04,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278046777] [2021-03-10 17:58:04,285 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:58:04,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:58:04,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:58:04,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:58:04,286 INFO L87 Difference]: Start difference. First operand 5347 states and 14230 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:04,990 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 17:58:05,165 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:58:05,394 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:58:05,636 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:58:05,880 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:58:06,155 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:58:06,429 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:58:06,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:58:06,666 INFO L93 Difference]: Finished difference Result 13344 states and 33966 transitions. [2021-03-10 17:58:06,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:58:06,667 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:58:06,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:58:06,679 INFO L225 Difference]: With dead ends: 13344 [2021-03-10 17:58:06,679 INFO L226 Difference]: Without dead ends: 13344 [2021-03-10 17:58:06,679 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2192.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:58:06,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13344 states. [2021-03-10 17:58:06,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13344 to 5334. [2021-03-10 17:58:06,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5334 states, 5332 states have (on average 2.6616654163540887) internal successors, (14192), 5333 states have internal predecessors, (14192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:06,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5334 states to 5334 states and 14192 transitions. [2021-03-10 17:58:06,762 INFO L78 Accepts]: Start accepts. Automaton has 5334 states and 14192 transitions. Word has length 108 [2021-03-10 17:58:06,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:58:06,762 INFO L480 AbstractCegarLoop]: Abstraction has 5334 states and 14192 transitions. [2021-03-10 17:58:06,762 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:06,762 INFO L276 IsEmpty]: Start isEmpty. Operand 5334 states and 14192 transitions. [2021-03-10 17:58:06,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:58:06,766 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:58:06,766 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:58:06,766 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2021-03-10 17:58:06,766 INFO L428 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]=== [2021-03-10 17:58:06,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:58:06,766 INFO L82 PathProgramCache]: Analyzing trace with hash -691721099, now seen corresponding path program 217 times [2021-03-10 17:58:06,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:58:06,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754177195] [2021-03-10 17:58:06,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:58:06,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:58:07,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:58:07,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754177195] [2021-03-10 17:58:07,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:58:07,347 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:58:07,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676088504] [2021-03-10 17:58:07,347 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:58:07,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:58:07,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:58:07,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:58:07,347 INFO L87 Difference]: Start difference. First operand 5334 states and 14192 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:08,032 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 17:58:08,204 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:58:08,432 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:58:08,677 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:58:08,931 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:58:09,207 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:58:09,490 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:58:09,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:58:09,724 INFO L93 Difference]: Finished difference Result 12757 states and 32566 transitions. [2021-03-10 17:58:09,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:58:09,725 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:58:09,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:58:09,738 INFO L225 Difference]: With dead ends: 12757 [2021-03-10 17:58:09,738 INFO L226 Difference]: Without dead ends: 12757 [2021-03-10 17:58:09,738 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2180.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:58:09,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12757 states. [2021-03-10 17:58:09,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12757 to 5347. [2021-03-10 17:58:09,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5347 states, 5345 states have (on average 2.6623012160898036) internal successors, (14230), 5346 states have internal predecessors, (14230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:09,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5347 states to 5347 states and 14230 transitions. [2021-03-10 17:58:09,841 INFO L78 Accepts]: Start accepts. Automaton has 5347 states and 14230 transitions. Word has length 108 [2021-03-10 17:58:09,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:58:09,841 INFO L480 AbstractCegarLoop]: Abstraction has 5347 states and 14230 transitions. [2021-03-10 17:58:09,841 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:09,841 INFO L276 IsEmpty]: Start isEmpty. Operand 5347 states and 14230 transitions. [2021-03-10 17:58:09,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:58:09,845 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:58:09,845 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:58:09,845 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2021-03-10 17:58:09,845 INFO L428 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]=== [2021-03-10 17:58:09,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:58:09,846 INFO L82 PathProgramCache]: Analyzing trace with hash 2074088379, now seen corresponding path program 218 times [2021-03-10 17:58:09,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:58:09,846 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383013723] [2021-03-10 17:58:09,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:58:09,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:58:10,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:58:10,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383013723] [2021-03-10 17:58:10,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:58:10,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:58:10,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908482523] [2021-03-10 17:58:10,423 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:58:10,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:58:10,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:58:10,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:58:10,424 INFO L87 Difference]: Start difference. First operand 5347 states and 14230 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:11,152 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2021-03-10 17:58:11,352 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2021-03-10 17:58:11,633 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2021-03-10 17:58:11,926 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2021-03-10 17:58:12,237 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2021-03-10 17:58:12,546 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 63 [2021-03-10 17:58:12,873 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2021-03-10 17:58:13,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:58:13,097 INFO L93 Difference]: Finished difference Result 9972 states and 25574 transitions. [2021-03-10 17:58:13,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:58:13,098 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:58:13,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:58:13,108 INFO L225 Difference]: With dead ends: 9972 [2021-03-10 17:58:13,108 INFO L226 Difference]: Without dead ends: 9972 [2021-03-10 17:58:13,108 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2413.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:58:13,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9972 states. [2021-03-10 17:58:13,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9972 to 5217. [2021-03-10 17:58:13,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5215 states have (on average 2.6558005752636626) internal successors, (13850), 5216 states have internal predecessors, (13850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:13,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 13850 transitions. [2021-03-10 17:58:13,187 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 13850 transitions. Word has length 108 [2021-03-10 17:58:13,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:58:13,187 INFO L480 AbstractCegarLoop]: Abstraction has 5217 states and 13850 transitions. [2021-03-10 17:58:13,187 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:13,187 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 13850 transitions. [2021-03-10 17:58:13,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:58:13,191 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:58:13,191 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:58:13,191 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2021-03-10 17:58:13,191 INFO L428 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]=== [2021-03-10 17:58:13,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:58:13,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1303368045, now seen corresponding path program 219 times [2021-03-10 17:58:13,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:58:13,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547229203] [2021-03-10 17:58:13,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:58:13,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:58:13,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:58:13,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547229203] [2021-03-10 17:58:13,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:58:13,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:58:13,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952954723] [2021-03-10 17:58:13,835 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:58:13,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:58:13,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:58:13,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:58:13,836 INFO L87 Difference]: Start difference. First operand 5217 states and 13850 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:14,570 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2021-03-10 17:58:14,748 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2021-03-10 17:58:15,001 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2021-03-10 17:58:15,262 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2021-03-10 17:58:15,522 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2021-03-10 17:58:15,859 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2021-03-10 17:58:16,182 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2021-03-10 17:58:16,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:58:16,468 INFO L93 Difference]: Finished difference Result 12401 states and 32234 transitions. [2021-03-10 17:58:16,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:58:16,470 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:58:16,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:58:16,482 INFO L225 Difference]: With dead ends: 12401 [2021-03-10 17:58:16,482 INFO L226 Difference]: Without dead ends: 12401 [2021-03-10 17:58:16,482 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2378.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:58:16,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12401 states. [2021-03-10 17:58:16,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12401 to 5347. [2021-03-10 17:58:16,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5347 states, 5345 states have (on average 2.6623012160898036) internal successors, (14230), 5346 states have internal predecessors, (14230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:16,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5347 states to 5347 states and 14230 transitions. [2021-03-10 17:58:16,572 INFO L78 Accepts]: Start accepts. Automaton has 5347 states and 14230 transitions. Word has length 108 [2021-03-10 17:58:16,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:58:16,572 INFO L480 AbstractCegarLoop]: Abstraction has 5347 states and 14230 transitions. [2021-03-10 17:58:16,572 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:16,572 INFO L276 IsEmpty]: Start isEmpty. Operand 5347 states and 14230 transitions. [2021-03-10 17:58:16,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:58:16,576 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:58:16,576 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:58:16,576 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2021-03-10 17:58:16,576 INFO L428 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]=== [2021-03-10 17:58:16,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:58:16,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1886720305, now seen corresponding path program 220 times [2021-03-10 17:58:16,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:58:16,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199827260] [2021-03-10 17:58:16,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:58:16,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:58:17,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:58:17,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199827260] [2021-03-10 17:58:17,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:58:17,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:58:17,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546995118] [2021-03-10 17:58:17,225 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:58:17,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:58:17,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:58:17,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:58:17,225 INFO L87 Difference]: Start difference. First operand 5347 states and 14230 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:17,955 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 17:58:18,123 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:58:18,366 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:58:18,593 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:58:18,920 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:58:19,210 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:58:19,518 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:58:19,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:58:19,818 INFO L93 Difference]: Finished difference Result 15128 states and 39068 transitions. [2021-03-10 17:58:19,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:58:19,820 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:58:19,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:58:19,834 INFO L225 Difference]: With dead ends: 15128 [2021-03-10 17:58:19,834 INFO L226 Difference]: Without dead ends: 15128 [2021-03-10 17:58:19,834 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2264.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:58:19,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15128 states. [2021-03-10 17:58:19,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15128 to 5360. [2021-03-10 17:58:19,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5360 states, 5358 states have (on average 2.662933930571109) internal successors, (14268), 5359 states have internal predecessors, (14268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:19,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5360 states to 5360 states and 14268 transitions. [2021-03-10 17:58:19,927 INFO L78 Accepts]: Start accepts. Automaton has 5360 states and 14268 transitions. Word has length 108 [2021-03-10 17:58:19,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:58:19,928 INFO L480 AbstractCegarLoop]: Abstraction has 5360 states and 14268 transitions. [2021-03-10 17:58:19,928 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:19,928 INFO L276 IsEmpty]: Start isEmpty. Operand 5360 states and 14268 transitions. [2021-03-10 17:58:19,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:58:19,931 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:58:19,931 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:58:19,932 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2021-03-10 17:58:19,932 INFO L428 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]=== [2021-03-10 17:58:19,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:58:19,932 INFO L82 PathProgramCache]: Analyzing trace with hash 357562487, now seen corresponding path program 221 times [2021-03-10 17:58:19,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:58:19,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367515328] [2021-03-10 17:58:19,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:58:19,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:58:20,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:58:20,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367515328] [2021-03-10 17:58:20,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:58:20,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:58:20,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51074847] [2021-03-10 17:58:20,611 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:58:20,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:58:20,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:58:20,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:58:20,611 INFO L87 Difference]: Start difference. First operand 5360 states and 14268 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:21,362 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2021-03-10 17:58:21,545 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2021-03-10 17:58:21,804 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2021-03-10 17:58:22,049 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2021-03-10 17:58:22,374 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2021-03-10 17:58:22,668 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2021-03-10 17:58:22,989 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2021-03-10 17:58:23,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:58:23,229 INFO L93 Difference]: Finished difference Result 13352 states and 34401 transitions. [2021-03-10 17:58:23,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:58:23,231 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:58:23,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:58:23,243 INFO L225 Difference]: With dead ends: 13352 [2021-03-10 17:58:23,243 INFO L226 Difference]: Without dead ends: 13352 [2021-03-10 17:58:23,243 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2416.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:58:23,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13352 states. [2021-03-10 17:58:23,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13352 to 5321. [2021-03-10 17:58:23,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5321 states, 5319 states have (on average 2.661026508742245) internal successors, (14154), 5320 states have internal predecessors, (14154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:23,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5321 states to 5321 states and 14154 transitions. [2021-03-10 17:58:23,328 INFO L78 Accepts]: Start accepts. Automaton has 5321 states and 14154 transitions. Word has length 108 [2021-03-10 17:58:23,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:58:23,328 INFO L480 AbstractCegarLoop]: Abstraction has 5321 states and 14154 transitions. [2021-03-10 17:58:23,328 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:23,328 INFO L276 IsEmpty]: Start isEmpty. Operand 5321 states and 14154 transitions. [2021-03-10 17:58:23,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:58:23,332 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:58:23,332 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:58:23,332 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2021-03-10 17:58:23,332 INFO L428 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]=== [2021-03-10 17:58:23,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:58:23,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1593958229, now seen corresponding path program 222 times [2021-03-10 17:58:23,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:58:23,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643859187] [2021-03-10 17:58:23,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:58:23,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:58:23,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:58:23,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643859187] [2021-03-10 17:58:23,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:58:23,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:58:23,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258107563] [2021-03-10 17:58:23,953 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:58:23,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:58:23,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:58:23,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:58:23,953 INFO L87 Difference]: Start difference. First operand 5321 states and 14154 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:24,694 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 17:58:24,867 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:58:25,119 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:58:25,399 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:58:25,667 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:58:25,945 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:58:26,276 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:58:26,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:58:26,544 INFO L93 Difference]: Finished difference Result 15109 states and 39107 transitions. [2021-03-10 17:58:26,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:58:26,545 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:58:26,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:58:26,559 INFO L225 Difference]: With dead ends: 15109 [2021-03-10 17:58:26,559 INFO L226 Difference]: Without dead ends: 15109 [2021-03-10 17:58:26,559 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2258.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:58:26,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15109 states. [2021-03-10 17:58:26,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15109 to 5347. [2021-03-10 17:58:26,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5347 states, 5345 states have (on average 2.6623012160898036) internal successors, (14230), 5346 states have internal predecessors, (14230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:26,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5347 states to 5347 states and 14230 transitions. [2021-03-10 17:58:26,653 INFO L78 Accepts]: Start accepts. Automaton has 5347 states and 14230 transitions. Word has length 108 [2021-03-10 17:58:26,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:58:26,653 INFO L480 AbstractCegarLoop]: Abstraction has 5347 states and 14230 transitions. [2021-03-10 17:58:26,653 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:26,653 INFO L276 IsEmpty]: Start isEmpty. Operand 5347 states and 14230 transitions. [2021-03-10 17:58:26,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:58:26,657 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:58:26,657 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:58:26,657 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2021-03-10 17:58:26,657 INFO L428 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]=== [2021-03-10 17:58:26,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:58:26,657 INFO L82 PathProgramCache]: Analyzing trace with hash -763036271, now seen corresponding path program 223 times [2021-03-10 17:58:26,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:58:26,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736573563] [2021-03-10 17:58:26,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:58:26,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:58:27,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:58:27,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736573563] [2021-03-10 17:58:27,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:58:27,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:58:27,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867701973] [2021-03-10 17:58:27,268 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:58:27,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:58:27,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:58:27,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:58:27,269 INFO L87 Difference]: Start difference. First operand 5347 states and 14230 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:28,020 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 17:58:28,194 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:58:28,450 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:58:28,731 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:58:29,000 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:58:29,307 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:58:29,625 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:58:29,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:58:29,919 INFO L93 Difference]: Finished difference Result 15836 states and 40736 transitions. [2021-03-10 17:58:29,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:58:29,920 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:58:29,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:58:29,935 INFO L225 Difference]: With dead ends: 15836 [2021-03-10 17:58:29,935 INFO L226 Difference]: Without dead ends: 15836 [2021-03-10 17:58:29,935 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2279.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:58:29,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15836 states. [2021-03-10 17:58:30,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15836 to 5334. [2021-03-10 17:58:30,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5334 states, 5332 states have (on average 2.6616654163540887) internal successors, (14192), 5333 states have internal predecessors, (14192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:30,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5334 states to 5334 states and 14192 transitions. [2021-03-10 17:58:30,038 INFO L78 Accepts]: Start accepts. Automaton has 5334 states and 14192 transitions. Word has length 108 [2021-03-10 17:58:30,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:58:30,038 INFO L480 AbstractCegarLoop]: Abstraction has 5334 states and 14192 transitions. [2021-03-10 17:58:30,038 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:30,038 INFO L276 IsEmpty]: Start isEmpty. Operand 5334 states and 14192 transitions. [2021-03-10 17:58:30,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:58:30,042 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:58:30,042 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:58:30,042 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2021-03-10 17:58:30,042 INFO L428 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]=== [2021-03-10 17:58:30,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:58:30,042 INFO L82 PathProgramCache]: Analyzing trace with hash -1975682707, now seen corresponding path program 224 times [2021-03-10 17:58:30,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:58:30,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574894576] [2021-03-10 17:58:30,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:58:30,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:58:30,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:58:30,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574894576] [2021-03-10 17:58:30,677 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:58:30,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:58:30,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133668558] [2021-03-10 17:58:30,678 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:58:30,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:58:30,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:58:30,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:58:30,678 INFO L87 Difference]: Start difference. First operand 5334 states and 14192 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:31,322 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2021-03-10 17:58:31,494 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 17:58:31,673 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:58:31,931 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:58:32,218 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:58:32,486 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:58:32,787 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:58:33,089 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:58:33,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:58:33,401 INFO L93 Difference]: Finished difference Result 17279 states and 44147 transitions. [2021-03-10 17:58:33,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:58:33,403 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:58:33,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:58:33,419 INFO L225 Difference]: With dead ends: 17279 [2021-03-10 17:58:33,419 INFO L226 Difference]: Without dead ends: 17279 [2021-03-10 17:58:33,419 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2340.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:58:33,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17279 states. [2021-03-10 17:58:33,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17279 to 5347. [2021-03-10 17:58:33,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5347 states, 5345 states have (on average 2.6623012160898036) internal successors, (14230), 5346 states have internal predecessors, (14230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:33,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5347 states to 5347 states and 14230 transitions. [2021-03-10 17:58:33,529 INFO L78 Accepts]: Start accepts. Automaton has 5347 states and 14230 transitions. Word has length 108 [2021-03-10 17:58:33,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:58:33,529 INFO L480 AbstractCegarLoop]: Abstraction has 5347 states and 14230 transitions. [2021-03-10 17:58:33,529 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:33,529 INFO L276 IsEmpty]: Start isEmpty. Operand 5347 states and 14230 transitions. [2021-03-10 17:58:33,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:58:33,533 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:58:33,534 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:58:33,534 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2021-03-10 17:58:33,534 INFO L428 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]=== [2021-03-10 17:58:33,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:58:33,534 INFO L82 PathProgramCache]: Analyzing trace with hash 790126771, now seen corresponding path program 225 times [2021-03-10 17:58:33,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:58:33,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833437696] [2021-03-10 17:58:33,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:58:33,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:58:34,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:58:34,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833437696] [2021-03-10 17:58:34,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:58:34,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:58:34,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533901149] [2021-03-10 17:58:34,149 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:58:34,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:58:34,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:58:34,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:58:34,149 INFO L87 Difference]: Start difference. First operand 5347 states and 14230 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:34,969 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2021-03-10 17:58:35,157 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2021-03-10 17:58:35,435 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2021-03-10 17:58:35,751 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2021-03-10 17:58:36,036 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 55 [2021-03-10 17:58:36,344 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 60 [2021-03-10 17:58:36,657 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 66 [2021-03-10 17:58:36,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:58:36,929 INFO L93 Difference]: Finished difference Result 14494 states and 37155 transitions. [2021-03-10 17:58:36,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:58:36,931 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:58:36,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:58:36,944 INFO L225 Difference]: With dead ends: 14494 [2021-03-10 17:58:36,944 INFO L226 Difference]: Without dead ends: 14494 [2021-03-10 17:58:36,944 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2392.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:58:36,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14494 states. [2021-03-10 17:58:37,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14494 to 5295. [2021-03-10 17:58:37,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5293 states have (on average 2.6597392782920837) internal successors, (14078), 5294 states have internal predecessors, (14078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:37,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 14078 transitions. [2021-03-10 17:58:37,049 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 14078 transitions. Word has length 108 [2021-03-10 17:58:37,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:58:37,049 INFO L480 AbstractCegarLoop]: Abstraction has 5295 states and 14078 transitions. [2021-03-10 17:58:37,049 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:37,049 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 14078 transitions. [2021-03-10 17:58:37,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:58:37,052 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:58:37,052 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:58:37,053 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2021-03-10 17:58:37,053 INFO L428 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]=== [2021-03-10 17:58:37,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:58:37,053 INFO L82 PathProgramCache]: Analyzing trace with hash 130168689, now seen corresponding path program 226 times [2021-03-10 17:58:37,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:58:37,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344384853] [2021-03-10 17:58:37,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:58:37,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:58:37,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:58:37,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344384853] [2021-03-10 17:58:37,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:58:37,699 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:58:37,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404438277] [2021-03-10 17:58:37,699 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:58:37,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:58:37,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:58:37,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:58:37,699 INFO L87 Difference]: Start difference. First operand 5295 states and 14078 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:38,479 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 17:58:38,660 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:58:38,932 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:58:39,175 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:58:39,439 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:58:39,783 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:58:40,107 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:58:40,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:58:40,412 INFO L93 Difference]: Finished difference Result 15609 states and 40513 transitions. [2021-03-10 17:58:40,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:58:40,414 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:58:40,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:58:40,428 INFO L225 Difference]: With dead ends: 15609 [2021-03-10 17:58:40,429 INFO L226 Difference]: Without dead ends: 15609 [2021-03-10 17:58:40,429 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2332.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:58:40,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15609 states. [2021-03-10 17:58:40,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15609 to 5347. [2021-03-10 17:58:40,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5347 states, 5345 states have (on average 2.6623012160898036) internal successors, (14230), 5346 states have internal predecessors, (14230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:40,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5347 states to 5347 states and 14230 transitions. [2021-03-10 17:58:40,527 INFO L78 Accepts]: Start accepts. Automaton has 5347 states and 14230 transitions. Word has length 108 [2021-03-10 17:58:40,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:58:40,527 INFO L480 AbstractCegarLoop]: Abstraction has 5347 states and 14230 transitions. [2021-03-10 17:58:40,527 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:40,527 INFO L276 IsEmpty]: Start isEmpty. Operand 5347 states and 14230 transitions. [2021-03-10 17:58:40,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:58:40,531 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:58:40,531 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:58:40,531 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2021-03-10 17:58:40,531 INFO L428 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]=== [2021-03-10 17:58:40,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:58:40,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1859307829, now seen corresponding path program 227 times [2021-03-10 17:58:40,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:58:40,531 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073588217] [2021-03-10 17:58:40,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:58:40,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:58:41,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:58:41,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073588217] [2021-03-10 17:58:41,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:58:41,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:58:41,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61582233] [2021-03-10 17:58:41,302 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:58:41,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:58:41,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:58:41,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:58:41,302 INFO L87 Difference]: Start difference. First operand 5347 states and 14230 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:42,080 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 17:58:42,257 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:58:42,514 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:58:42,769 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:58:43,085 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:58:43,366 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:58:43,690 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:58:43,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:58:43,972 INFO L93 Difference]: Finished difference Result 18054 states and 46734 transitions. [2021-03-10 17:58:43,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:58:43,974 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:58:43,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:58:43,990 INFO L225 Difference]: With dead ends: 18054 [2021-03-10 17:58:43,991 INFO L226 Difference]: Without dead ends: 18054 [2021-03-10 17:58:43,991 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2484.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:58:44,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18054 states. [2021-03-10 17:58:44,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18054 to 5360. [2021-03-10 17:58:44,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5360 states, 5358 states have (on average 2.662933930571109) internal successors, (14268), 5359 states have internal predecessors, (14268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:44,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5360 states to 5360 states and 14268 transitions. [2021-03-10 17:58:44,096 INFO L78 Accepts]: Start accepts. Automaton has 5360 states and 14268 transitions. Word has length 108 [2021-03-10 17:58:44,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:58:44,096 INFO L480 AbstractCegarLoop]: Abstraction has 5360 states and 14268 transitions. [2021-03-10 17:58:44,097 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:44,097 INFO L276 IsEmpty]: Start isEmpty. Operand 5360 states and 14268 transitions. [2021-03-10 17:58:44,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:58:44,100 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:58:44,100 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:58:44,100 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2021-03-10 17:58:44,100 INFO L428 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]=== [2021-03-10 17:58:44,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:58:44,101 INFO L82 PathProgramCache]: Analyzing trace with hash -497686671, now seen corresponding path program 228 times [2021-03-10 17:58:44,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:58:44,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151021142] [2021-03-10 17:58:44,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:58:44,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:58:44,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:58:44,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151021142] [2021-03-10 17:58:44,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:58:44,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:58:44,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829787799] [2021-03-10 17:58:44,780 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:58:44,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:58:44,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:58:44,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:58:44,781 INFO L87 Difference]: Start difference. First operand 5360 states and 14268 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:45,539 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 17:58:45,713 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:58:45,968 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:58:46,200 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:58:46,517 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:58:46,812 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:58:47,112 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:58:47,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:58:47,374 INFO L93 Difference]: Finished difference Result 16396 states and 42297 transitions. [2021-03-10 17:58:47,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:58:47,375 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:58:47,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:58:47,390 INFO L225 Difference]: With dead ends: 16396 [2021-03-10 17:58:47,390 INFO L226 Difference]: Without dead ends: 16396 [2021-03-10 17:58:47,391 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2377.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:58:47,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16396 states. [2021-03-10 17:58:47,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16396 to 5321. [2021-03-10 17:58:47,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5321 states, 5319 states have (on average 2.661026508742245) internal successors, (14154), 5320 states have internal predecessors, (14154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:47,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5321 states to 5321 states and 14154 transitions. [2021-03-10 17:58:47,488 INFO L78 Accepts]: Start accepts. Automaton has 5321 states and 14154 transitions. Word has length 108 [2021-03-10 17:58:47,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:58:47,489 INFO L480 AbstractCegarLoop]: Abstraction has 5321 states and 14154 transitions. [2021-03-10 17:58:47,489 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:47,489 INFO L276 IsEmpty]: Start isEmpty. Operand 5321 states and 14154 transitions. [2021-03-10 17:58:47,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:58:47,492 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:58:47,492 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:58:47,493 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2021-03-10 17:58:47,493 INFO L428 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]=== [2021-03-10 17:58:47,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:58:47,493 INFO L82 PathProgramCache]: Analyzing trace with hash 1618935739, now seen corresponding path program 229 times [2021-03-10 17:58:47,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:58:47,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188729739] [2021-03-10 17:58:47,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:58:47,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:58:48,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:58:48,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188729739] [2021-03-10 17:58:48,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:58:48,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:58:48,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634864049] [2021-03-10 17:58:48,162 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:58:48,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:58:48,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:58:48,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:58:48,163 INFO L87 Difference]: Start difference. First operand 5321 states and 14154 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:48,950 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 17:58:49,129 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:58:49,406 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:58:49,687 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:58:49,962 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:58:50,256 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:58:50,580 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:58:50,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:58:50,923 INFO L93 Difference]: Finished difference Result 17604 states and 45205 transitions. [2021-03-10 17:58:50,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:58:50,925 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:58:50,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:58:50,941 INFO L225 Difference]: With dead ends: 17604 [2021-03-10 17:58:50,942 INFO L226 Difference]: Without dead ends: 17604 [2021-03-10 17:58:50,942 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2350.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:58:50,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17604 states. [2021-03-10 17:58:51,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17604 to 5347. [2021-03-10 17:58:51,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5347 states, 5345 states have (on average 2.6623012160898036) internal successors, (14230), 5346 states have internal predecessors, (14230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:51,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5347 states to 5347 states and 14230 transitions. [2021-03-10 17:58:51,049 INFO L78 Accepts]: Start accepts. Automaton has 5347 states and 14230 transitions. Word has length 108 [2021-03-10 17:58:51,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:58:51,049 INFO L480 AbstractCegarLoop]: Abstraction has 5347 states and 14230 transitions. [2021-03-10 17:58:51,049 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:51,049 INFO L276 IsEmpty]: Start isEmpty. Operand 5347 states and 14230 transitions. [2021-03-10 17:58:51,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:58:51,053 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:58:51,053 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:58:51,053 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2021-03-10 17:58:51,053 INFO L428 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]=== [2021-03-10 17:58:51,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:58:51,053 INFO L82 PathProgramCache]: Analyzing trace with hash -738058761, now seen corresponding path program 230 times [2021-03-10 17:58:51,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:58:51,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413050621] [2021-03-10 17:58:51,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:58:51,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:58:51,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:58:51,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413050621] [2021-03-10 17:58:51,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:58:51,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:58:51,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38476943] [2021-03-10 17:58:51,712 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:58:51,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:58:51,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:58:51,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:58:51,713 INFO L87 Difference]: Start difference. First operand 5347 states and 14230 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:52,487 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 17:58:52,663 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:58:52,920 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:58:53,187 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:58:53,453 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:58:53,778 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:58:54,075 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:58:54,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:58:54,368 INFO L93 Difference]: Finished difference Result 18331 states and 46834 transitions. [2021-03-10 17:58:54,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:58:54,370 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:58:54,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:58:54,386 INFO L225 Difference]: With dead ends: 18331 [2021-03-10 17:58:54,387 INFO L226 Difference]: Without dead ends: 18331 [2021-03-10 17:58:54,387 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2399.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:58:54,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18331 states. [2021-03-10 17:58:54,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18331 to 5334. [2021-03-10 17:58:54,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5334 states, 5332 states have (on average 2.6616654163540887) internal successors, (14192), 5333 states have internal predecessors, (14192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:54,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5334 states to 5334 states and 14192 transitions. [2021-03-10 17:58:54,507 INFO L78 Accepts]: Start accepts. Automaton has 5334 states and 14192 transitions. Word has length 108 [2021-03-10 17:58:54,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:58:54,507 INFO L480 AbstractCegarLoop]: Abstraction has 5334 states and 14192 transitions. [2021-03-10 17:58:54,507 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:54,507 INFO L276 IsEmpty]: Start isEmpty. Operand 5334 states and 14192 transitions. [2021-03-10 17:58:54,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:58:54,511 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:58:54,512 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:58:54,512 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2021-03-10 17:58:54,512 INFO L428 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]=== [2021-03-10 17:58:54,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:58:54,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1950705197, now seen corresponding path program 231 times [2021-03-10 17:58:54,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:58:54,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326166861] [2021-03-10 17:58:54,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:58:54,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:58:55,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:58:55,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326166861] [2021-03-10 17:58:55,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:58:55,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:58:55,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141704598] [2021-03-10 17:58:55,158 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:58:55,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:58:55,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:58:55,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:58:55,158 INFO L87 Difference]: Start difference. First operand 5334 states and 14192 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:55,932 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 17:58:56,118 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:58:56,378 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:58:56,657 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:58:56,935 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:58:57,232 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:58:57,535 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:58:57,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:58:57,816 INFO L93 Difference]: Finished difference Result 17744 states and 45434 transitions. [2021-03-10 17:58:57,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:58:57,818 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:58:57,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:58:57,835 INFO L225 Difference]: With dead ends: 17744 [2021-03-10 17:58:57,835 INFO L226 Difference]: Without dead ends: 17744 [2021-03-10 17:58:57,835 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2388.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:58:57,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17744 states. [2021-03-10 17:58:57,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17744 to 5347. [2021-03-10 17:58:57,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5347 states, 5345 states have (on average 2.6623012160898036) internal successors, (14230), 5346 states have internal predecessors, (14230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:57,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5347 states to 5347 states and 14230 transitions. [2021-03-10 17:58:57,939 INFO L78 Accepts]: Start accepts. Automaton has 5347 states and 14230 transitions. Word has length 108 [2021-03-10 17:58:57,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:58:57,940 INFO L480 AbstractCegarLoop]: Abstraction has 5347 states and 14230 transitions. [2021-03-10 17:58:57,940 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:57,940 INFO L276 IsEmpty]: Start isEmpty. Operand 5347 states and 14230 transitions. [2021-03-10 17:58:57,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:58:57,943 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:58:57,943 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:58:57,943 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2021-03-10 17:58:57,943 INFO L428 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]=== [2021-03-10 17:58:57,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:58:57,944 INFO L82 PathProgramCache]: Analyzing trace with hash 815104281, now seen corresponding path program 232 times [2021-03-10 17:58:57,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:58:57,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029963935] [2021-03-10 17:58:57,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:58:57,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:58:58,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:58:58,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029963935] [2021-03-10 17:58:58,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:58:58,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:58:58,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880365753] [2021-03-10 17:58:58,581 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:58:58,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:58:58,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:58:58,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:58:58,581 INFO L87 Difference]: Start difference. First operand 5347 states and 14230 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:59,444 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2021-03-10 17:58:59,646 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2021-03-10 17:58:59,941 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2021-03-10 17:59:00,266 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2021-03-10 17:59:00,590 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2021-03-10 17:59:00,928 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 63 [2021-03-10 17:59:01,290 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2021-03-10 17:59:01,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:59:01,628 INFO L93 Difference]: Finished difference Result 14959 states and 38442 transitions. [2021-03-10 17:59:01,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:59:01,630 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:59:01,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:59:01,645 INFO L225 Difference]: With dead ends: 14959 [2021-03-10 17:59:01,645 INFO L226 Difference]: Without dead ends: 14959 [2021-03-10 17:59:01,646 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2563.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:59:01,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14959 states. [2021-03-10 17:59:01,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14959 to 5243. [2021-03-10 17:59:01,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5243 states, 5241 states have (on average 2.6571265025758444) internal successors, (13926), 5242 states have internal predecessors, (13926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:01,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5243 states to 5243 states and 13926 transitions. [2021-03-10 17:59:01,755 INFO L78 Accepts]: Start accepts. Automaton has 5243 states and 13926 transitions. Word has length 108 [2021-03-10 17:59:01,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:59:01,755 INFO L480 AbstractCegarLoop]: Abstraction has 5243 states and 13926 transitions. [2021-03-10 17:59:01,755 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:01,756 INFO L276 IsEmpty]: Start isEmpty. Operand 5243 states and 13926 transitions. [2021-03-10 17:59:01,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:59:01,759 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:59:01,759 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:59:01,759 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2021-03-10 17:59:01,760 INFO L428 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]=== [2021-03-10 17:59:01,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:59:01,760 INFO L82 PathProgramCache]: Analyzing trace with hash 781475249, now seen corresponding path program 233 times [2021-03-10 17:59:01,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:59:01,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245414866] [2021-03-10 17:59:01,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:59:01,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:59:02,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:59:02,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245414866] [2021-03-10 17:59:02,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:59:02,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:59:02,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991667121] [2021-03-10 17:59:02,510 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:59:02,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:59:02,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:59:02,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:59:02,510 INFO L87 Difference]: Start difference. First operand 5243 states and 13926 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:03,310 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 17:59:03,524 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:59:03,743 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-03-10 17:59:03,982 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:59:04,242 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:59:04,611 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:59:04,946 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:59:05,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:59:05,244 INFO L93 Difference]: Finished difference Result 11183 states and 29246 transitions. [2021-03-10 17:59:05,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:59:05,246 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:59:05,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:59:05,253 INFO L225 Difference]: With dead ends: 11183 [2021-03-10 17:59:05,253 INFO L226 Difference]: Without dead ends: 11183 [2021-03-10 17:59:05,253 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2484.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:59:05,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11183 states. [2021-03-10 17:59:05,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11183 to 5269. [2021-03-10 17:59:05,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5269 states, 5267 states have (on average 2.658439339282324) internal successors, (14002), 5268 states have internal predecessors, (14002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:05,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5269 states to 5269 states and 14002 transitions. [2021-03-10 17:59:05,321 INFO L78 Accepts]: Start accepts. Automaton has 5269 states and 14002 transitions. Word has length 108 [2021-03-10 17:59:05,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:59:05,321 INFO L480 AbstractCegarLoop]: Abstraction has 5269 states and 14002 transitions. [2021-03-10 17:59:05,322 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:05,322 INFO L276 IsEmpty]: Start isEmpty. Operand 5269 states and 14002 transitions. [2021-03-10 17:59:05,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:59:05,325 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:59:05,325 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:59:05,325 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2021-03-10 17:59:05,325 INFO L428 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]=== [2021-03-10 17:59:05,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:59:05,326 INFO L82 PathProgramCache]: Analyzing trace with hash 1333206901, now seen corresponding path program 234 times [2021-03-10 17:59:05,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:59:05,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617235514] [2021-03-10 17:59:05,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:59:05,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:59:06,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:59:06,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617235514] [2021-03-10 17:59:06,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:59:06,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:59:06,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541586132] [2021-03-10 17:59:06,064 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:59:06,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:59:06,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:59:06,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:59:06,065 INFO L87 Difference]: Start difference. First operand 5269 states and 14002 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:06,907 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 17:59:07,136 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:59:07,362 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-03-10 17:59:07,626 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:59:07,885 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:59:08,267 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:59:08,610 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:59:08,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:59:08,921 INFO L93 Difference]: Finished difference Result 13994 states and 36485 transitions. [2021-03-10 17:59:08,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:59:08,923 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:59:08,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:59:08,937 INFO L225 Difference]: With dead ends: 13994 [2021-03-10 17:59:08,937 INFO L226 Difference]: Without dead ends: 13994 [2021-03-10 17:59:08,937 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2502.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:59:08,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13994 states. [2021-03-10 17:59:09,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13994 to 5295. [2021-03-10 17:59:09,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5293 states have (on average 2.6597392782920837) internal successors, (14078), 5294 states have internal predecessors, (14078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:09,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 14078 transitions. [2021-03-10 17:59:09,041 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 14078 transitions. Word has length 108 [2021-03-10 17:59:09,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:59:09,041 INFO L480 AbstractCegarLoop]: Abstraction has 5295 states and 14078 transitions. [2021-03-10 17:59:09,041 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:09,042 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 14078 transitions. [2021-03-10 17:59:09,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:59:09,045 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:59:09,045 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:59:09,045 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2021-03-10 17:59:09,045 INFO L428 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]=== [2021-03-10 17:59:09,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:59:09,046 INFO L82 PathProgramCache]: Analyzing trace with hash 223772533, now seen corresponding path program 235 times [2021-03-10 17:59:09,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:59:09,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732967075] [2021-03-10 17:59:09,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:59:09,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:59:09,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:59:09,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732967075] [2021-03-10 17:59:09,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:59:09,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:59:09,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673460520] [2021-03-10 17:59:09,793 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:59:09,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:59:09,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:59:09,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:59:09,794 INFO L87 Difference]: Start difference. First operand 5295 states and 14078 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:10,645 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 17:59:10,875 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:59:11,106 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-03-10 17:59:11,414 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:59:11,809 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:59:12,159 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:59:12,535 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:59:12,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:59:12,867 INFO L93 Difference]: Finished difference Result 13748 states and 35777 transitions. [2021-03-10 17:59:12,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:59:12,869 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:59:12,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:59:12,882 INFO L225 Difference]: With dead ends: 13748 [2021-03-10 17:59:12,883 INFO L226 Difference]: Without dead ends: 13748 [2021-03-10 17:59:12,883 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2652.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:59:12,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13748 states. [2021-03-10 17:59:12,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13748 to 5308. [2021-03-10 17:59:12,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5308 states, 5306 states have (on average 2.6603844704108557) internal successors, (14116), 5307 states have internal predecessors, (14116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:12,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5308 states to 5308 states and 14116 transitions. [2021-03-10 17:59:12,983 INFO L78 Accepts]: Start accepts. Automaton has 5308 states and 14116 transitions. Word has length 108 [2021-03-10 17:59:12,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:59:12,983 INFO L480 AbstractCegarLoop]: Abstraction has 5308 states and 14116 transitions. [2021-03-10 17:59:12,983 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:12,983 INFO L276 IsEmpty]: Start isEmpty. Operand 5308 states and 14116 transitions. [2021-03-10 17:59:12,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:59:12,987 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:59:12,987 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:59:12,987 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2021-03-10 17:59:12,987 INFO L428 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]=== [2021-03-10 17:59:12,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:59:12,988 INFO L82 PathProgramCache]: Analyzing trace with hash -2133221967, now seen corresponding path program 236 times [2021-03-10 17:59:12,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:59:12,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49087181] [2021-03-10 17:59:12,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:59:12,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:59:13,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:59:13,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49087181] [2021-03-10 17:59:13,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:59:13,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:59:13,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680143697] [2021-03-10 17:59:13,792 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:59:13,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:59:13,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:59:13,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:59:13,792 INFO L87 Difference]: Start difference. First operand 5308 states and 14116 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:14,614 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 17:59:14,835 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:59:15,057 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-03-10 17:59:15,311 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:59:15,640 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:59:15,955 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:59:16,273 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:59:16,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:59:16,513 INFO L93 Difference]: Finished difference Result 12090 states and 31340 transitions. [2021-03-10 17:59:16,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:59:16,515 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:59:16,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:59:16,526 INFO L225 Difference]: With dead ends: 12090 [2021-03-10 17:59:16,526 INFO L226 Difference]: Without dead ends: 12090 [2021-03-10 17:59:16,526 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2596.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:59:16,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12090 states. [2021-03-10 17:59:16,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12090 to 5256. [2021-03-10 17:59:16,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5256 states, 5254 states have (on average 2.657784545108489) internal successors, (13964), 5255 states have internal predecessors, (13964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:16,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5256 states to 5256 states and 13964 transitions. [2021-03-10 17:59:16,605 INFO L78 Accepts]: Start accepts. Automaton has 5256 states and 13964 transitions. Word has length 108 [2021-03-10 17:59:16,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:59:16,605 INFO L480 AbstractCegarLoop]: Abstraction has 5256 states and 13964 transitions. [2021-03-10 17:59:16,605 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:16,605 INFO L276 IsEmpty]: Start isEmpty. Operand 5256 states and 13964 transitions. [2021-03-10 17:59:16,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:59:16,608 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:59:16,609 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:59:16,609 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2021-03-10 17:59:16,609 INFO L428 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]=== [2021-03-10 17:59:16,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:59:16,609 INFO L82 PathProgramCache]: Analyzing trace with hash 1790302527, now seen corresponding path program 237 times [2021-03-10 17:59:16,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:59:16,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964789203] [2021-03-10 17:59:16,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:59:16,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:59:17,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:59:17,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964789203] [2021-03-10 17:59:17,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:59:17,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:59:17,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017240017] [2021-03-10 17:59:17,364 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:59:17,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:59:17,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:59:17,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:59:17,365 INFO L87 Difference]: Start difference. First operand 5256 states and 13964 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:18,161 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 17:59:18,376 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:59:18,600 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:59:18,846 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:59:19,104 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:59:19,470 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:59:19,807 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:59:20,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:59:20,109 INFO L93 Difference]: Finished difference Result 13474 states and 34718 transitions. [2021-03-10 17:59:20,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:59:20,111 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:59:20,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:59:20,124 INFO L225 Difference]: With dead ends: 13474 [2021-03-10 17:59:20,124 INFO L226 Difference]: Without dead ends: 13474 [2021-03-10 17:59:20,124 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2505.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:59:20,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13474 states. [2021-03-10 17:59:20,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13474 to 5308. [2021-03-10 17:59:20,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5308 states, 5306 states have (on average 2.6603844704108557) internal successors, (14116), 5307 states have internal predecessors, (14116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:20,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5308 states to 5308 states and 14116 transitions. [2021-03-10 17:59:20,212 INFO L78 Accepts]: Start accepts. Automaton has 5308 states and 14116 transitions. Word has length 108 [2021-03-10 17:59:20,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:59:20,212 INFO L480 AbstractCegarLoop]: Abstraction has 5308 states and 14116 transitions. [2021-03-10 17:59:20,212 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:20,212 INFO L276 IsEmpty]: Start isEmpty. Operand 5308 states and 14116 transitions. [2021-03-10 17:59:20,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:59:20,216 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:59:20,216 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:59:20,216 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2021-03-10 17:59:20,216 INFO L428 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]=== [2021-03-10 17:59:20,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:59:20,216 INFO L82 PathProgramCache]: Analyzing trace with hash 680868159, now seen corresponding path program 238 times [2021-03-10 17:59:20,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:59:20,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911511861] [2021-03-10 17:59:20,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:59:20,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:59:20,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:59:20,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911511861] [2021-03-10 17:59:20,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:59:20,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:59:20,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007011070] [2021-03-10 17:59:20,915 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:59:20,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:59:20,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:59:20,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:59:20,915 INFO L87 Difference]: Start difference. First operand 5308 states and 14116 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:21,727 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 17:59:21,948 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:59:22,177 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:59:22,419 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:59:22,750 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:59:23,047 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:59:23,418 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:59:23,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:59:23,710 INFO L93 Difference]: Finished difference Result 15919 states and 40939 transitions. [2021-03-10 17:59:23,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:59:23,712 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:59:23,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:59:23,728 INFO L225 Difference]: With dead ends: 15919 [2021-03-10 17:59:23,728 INFO L226 Difference]: Without dead ends: 15919 [2021-03-10 17:59:23,728 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2516.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:59:23,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15919 states. [2021-03-10 17:59:23,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15919 to 5321. [2021-03-10 17:59:23,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5321 states, 5319 states have (on average 2.661026508742245) internal successors, (14154), 5320 states have internal predecessors, (14154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:23,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5321 states to 5321 states and 14154 transitions. [2021-03-10 17:59:23,825 INFO L78 Accepts]: Start accepts. Automaton has 5321 states and 14154 transitions. Word has length 108 [2021-03-10 17:59:23,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:59:23,826 INFO L480 AbstractCegarLoop]: Abstraction has 5321 states and 14154 transitions. [2021-03-10 17:59:23,826 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:23,826 INFO L276 IsEmpty]: Start isEmpty. Operand 5321 states and 14154 transitions. [2021-03-10 17:59:23,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:59:23,829 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:59:23,829 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:59:23,829 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2021-03-10 17:59:23,829 INFO L428 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]=== [2021-03-10 17:59:23,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:59:23,830 INFO L82 PathProgramCache]: Analyzing trace with hash -1676126341, now seen corresponding path program 239 times [2021-03-10 17:59:23,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:59:23,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583122657] [2021-03-10 17:59:23,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:59:23,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:59:24,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:59:24,565 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583122657] [2021-03-10 17:59:24,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:59:24,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:59:24,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473661687] [2021-03-10 17:59:24,565 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:59:24,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:59:24,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:59:24,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:59:24,566 INFO L87 Difference]: Start difference. First operand 5321 states and 14154 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:25,389 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 17:59:25,612 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:59:25,838 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:59:26,079 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:59:26,407 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:59:26,724 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:59:27,041 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:59:27,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:59:27,317 INFO L93 Difference]: Finished difference Result 14261 states and 36502 transitions. [2021-03-10 17:59:27,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:59:27,319 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:59:27,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:59:27,332 INFO L225 Difference]: With dead ends: 14261 [2021-03-10 17:59:27,332 INFO L226 Difference]: Without dead ends: 14261 [2021-03-10 17:59:27,332 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2535.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:59:27,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14261 states. [2021-03-10 17:59:27,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14261 to 5282. [2021-03-10 17:59:27,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5282 states, 5280 states have (on average 2.659090909090909) internal successors, (14040), 5281 states have internal predecessors, (14040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:27,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5282 states to 5282 states and 14040 transitions. [2021-03-10 17:59:27,420 INFO L78 Accepts]: Start accepts. Automaton has 5282 states and 14040 transitions. Word has length 108 [2021-03-10 17:59:27,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:59:27,420 INFO L480 AbstractCegarLoop]: Abstraction has 5282 states and 14040 transitions. [2021-03-10 17:59:27,420 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:27,420 INFO L276 IsEmpty]: Start isEmpty. Operand 5282 states and 14040 transitions. [2021-03-10 17:59:27,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:59:27,424 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:59:27,424 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:59:27,424 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2021-03-10 17:59:27,424 INFO L428 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]=== [2021-03-10 17:59:27,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:59:27,424 INFO L82 PathProgramCache]: Analyzing trace with hash -160583843, now seen corresponding path program 240 times [2021-03-10 17:59:27,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:59:27,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331885194] [2021-03-10 17:59:27,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:59:27,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:59:28,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:59:28,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331885194] [2021-03-10 17:59:28,094 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:59:28,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:59:28,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76475397] [2021-03-10 17:59:28,094 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:59:28,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:59:28,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:59:28,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:59:28,095 INFO L87 Difference]: Start difference. First operand 5282 states and 14040 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:28,943 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 17:59:29,195 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:59:29,426 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:59:29,711 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:59:30,025 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:59:30,368 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:59:30,747 WARN L205 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:59:31,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:59:31,072 INFO L93 Difference]: Finished difference Result 13108 states and 33700 transitions. [2021-03-10 17:59:31,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:59:31,074 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:59:31,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:59:31,088 INFO L225 Difference]: With dead ends: 13108 [2021-03-10 17:59:31,089 INFO L226 Difference]: Without dead ends: 13108 [2021-03-10 17:59:31,089 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2638.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:59:31,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13108 states. [2021-03-10 17:59:31,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13108 to 5308. [2021-03-10 17:59:31,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5308 states, 5306 states have (on average 2.6603844704108557) internal successors, (14116), 5307 states have internal predecessors, (14116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:31,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5308 states to 5308 states and 14116 transitions. [2021-03-10 17:59:31,189 INFO L78 Accepts]: Start accepts. Automaton has 5308 states and 14116 transitions. Word has length 108 [2021-03-10 17:59:31,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:59:31,189 INFO L480 AbstractCegarLoop]: Abstraction has 5308 states and 14116 transitions. [2021-03-10 17:59:31,190 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:31,190 INFO L276 IsEmpty]: Start isEmpty. Operand 5308 states and 14116 transitions. [2021-03-10 17:59:31,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:59:31,194 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:59:31,194 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:59:31,194 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2021-03-10 17:59:31,194 INFO L428 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]=== [2021-03-10 17:59:31,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:59:31,194 INFO L82 PathProgramCache]: Analyzing trace with hash 1777388953, now seen corresponding path program 241 times [2021-03-10 17:59:31,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:59:31,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484543408] [2021-03-10 17:59:31,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:59:31,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:59:32,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:59:32,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484543408] [2021-03-10 17:59:32,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:59:32,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:59:32,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064830785] [2021-03-10 17:59:32,000 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:59:32,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:59:32,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:59:32,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:59:32,001 INFO L87 Difference]: Start difference. First operand 5308 states and 14116 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:32,869 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 17:59:33,101 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:59:33,340 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:59:33,654 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:59:33,951 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:59:34,285 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:59:34,608 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:59:34,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:59:34,935 INFO L93 Difference]: Finished difference Result 13835 states and 35329 transitions. [2021-03-10 17:59:34,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:59:34,937 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:59:34,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:59:34,950 INFO L225 Difference]: With dead ends: 13835 [2021-03-10 17:59:34,950 INFO L226 Difference]: Without dead ends: 13835 [2021-03-10 17:59:34,950 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2632.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:59:34,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13835 states. [2021-03-10 17:59:35,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13835 to 5295. [2021-03-10 17:59:35,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5293 states have (on average 2.6597392782920837) internal successors, (14078), 5294 states have internal predecessors, (14078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:35,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 14078 transitions. [2021-03-10 17:59:35,036 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 14078 transitions. Word has length 108 [2021-03-10 17:59:35,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:59:35,036 INFO L480 AbstractCegarLoop]: Abstraction has 5295 states and 14078 transitions. [2021-03-10 17:59:35,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:35,036 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 14078 transitions. [2021-03-10 17:59:35,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:59:35,040 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:59:35,040 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:59:35,040 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2021-03-10 17:59:35,040 INFO L428 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]=== [2021-03-10 17:59:35,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:59:35,040 INFO L82 PathProgramCache]: Analyzing trace with hash 564742517, now seen corresponding path program 242 times [2021-03-10 17:59:35,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:59:35,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053059625] [2021-03-10 17:59:35,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:59:35,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:59:35,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:59:35,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053059625] [2021-03-10 17:59:35,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:59:35,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:59:35,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557203922] [2021-03-10 17:59:35,791 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:59:35,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:59:35,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:59:35,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:59:35,791 INFO L87 Difference]: Start difference. First operand 5295 states and 14078 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:36,626 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 17:59:36,849 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:59:37,080 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:59:37,365 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:59:37,651 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:59:37,961 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:59:38,274 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:59:38,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:59:38,535 INFO L93 Difference]: Finished difference Result 13248 states and 33929 transitions. [2021-03-10 17:59:38,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:59:38,537 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:59:38,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:59:38,550 INFO L225 Difference]: With dead ends: 13248 [2021-03-10 17:59:38,550 INFO L226 Difference]: Without dead ends: 13248 [2021-03-10 17:59:38,550 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2520.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:59:38,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13248 states. [2021-03-10 17:59:38,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13248 to 5308. [2021-03-10 17:59:38,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5308 states, 5306 states have (on average 2.6603844704108557) internal successors, (14116), 5307 states have internal predecessors, (14116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:38,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5308 states to 5308 states and 14116 transitions. [2021-03-10 17:59:38,634 INFO L78 Accepts]: Start accepts. Automaton has 5308 states and 14116 transitions. Word has length 108 [2021-03-10 17:59:38,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:59:38,634 INFO L480 AbstractCegarLoop]: Abstraction has 5308 states and 14116 transitions. [2021-03-10 17:59:38,634 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:38,634 INFO L276 IsEmpty]: Start isEmpty. Operand 5308 states and 14116 transitions. [2021-03-10 17:59:38,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:59:38,638 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:59:38,638 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:59:38,638 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2021-03-10 17:59:38,638 INFO L428 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]=== [2021-03-10 17:59:38,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:59:38,638 INFO L82 PathProgramCache]: Analyzing trace with hash -964415301, now seen corresponding path program 243 times [2021-03-10 17:59:38,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:59:38,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333593455] [2021-03-10 17:59:38,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:59:38,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:59:39,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:59:39,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333593455] [2021-03-10 17:59:39,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:59:39,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:59:39,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60285345] [2021-03-10 17:59:39,333 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:59:39,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:59:39,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:59:39,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:59:39,333 INFO L87 Difference]: Start difference. First operand 5308 states and 14116 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:40,020 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2021-03-10 17:59:40,215 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2021-03-10 17:59:40,452 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2021-03-10 17:59:40,708 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2021-03-10 17:59:41,016 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2021-03-10 17:59:41,340 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2021-03-10 17:59:41,733 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 63 [2021-03-10 17:59:42,125 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2021-03-10 17:59:42,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:59:42,390 INFO L93 Difference]: Finished difference Result 10463 states and 26937 transitions. [2021-03-10 17:59:42,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:59:42,392 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:59:42,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:59:42,402 INFO L225 Difference]: With dead ends: 10463 [2021-03-10 17:59:42,402 INFO L226 Difference]: Without dead ends: 10463 [2021-03-10 17:59:42,402 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2758.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:59:42,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10463 states. [2021-03-10 17:59:42,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10463 to 5204. [2021-03-10 17:59:42,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5204 states, 5202 states have (on average 2.655132641291811) internal successors, (13812), 5203 states have internal predecessors, (13812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:42,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5204 states to 5204 states and 13812 transitions. [2021-03-10 17:59:42,477 INFO L78 Accepts]: Start accepts. Automaton has 5204 states and 13812 transitions. Word has length 108 [2021-03-10 17:59:42,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:59:42,477 INFO L480 AbstractCegarLoop]: Abstraction has 5204 states and 13812 transitions. [2021-03-10 17:59:42,477 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:42,478 INFO L276 IsEmpty]: Start isEmpty. Operand 5204 states and 13812 transitions. [2021-03-10 17:59:42,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:59:42,482 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:59:42,482 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:59:42,482 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2021-03-10 17:59:42,482 INFO L428 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]=== [2021-03-10 17:59:42,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:59:42,482 INFO L82 PathProgramCache]: Analyzing trace with hash -328382375, now seen corresponding path program 244 times [2021-03-10 17:59:42,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:59:42,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821774212] [2021-03-10 17:59:42,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:59:42,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:59:43,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:59:43,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821774212] [2021-03-10 17:59:43,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:59:43,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:59:43,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722642031] [2021-03-10 17:59:43,274 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:59:43,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:59:43,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:59:43,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:59:43,274 INFO L87 Difference]: Start difference. First operand 5204 states and 13812 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:44,168 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2021-03-10 17:59:44,367 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 41 [2021-03-10 17:59:44,654 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-03-10 17:59:44,933 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2021-03-10 17:59:45,235 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2021-03-10 17:59:45,635 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2021-03-10 17:59:46,011 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2021-03-10 17:59:46,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:59:46,348 INFO L93 Difference]: Finished difference Result 12763 states and 33244 transitions. [2021-03-10 17:59:46,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:59:46,350 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:59:46,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:59:46,363 INFO L225 Difference]: With dead ends: 12763 [2021-03-10 17:59:46,363 INFO L226 Difference]: Without dead ends: 12763 [2021-03-10 17:59:46,363 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2762.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:59:46,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12763 states. [2021-03-10 17:59:46,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12763 to 5360. [2021-03-10 17:59:46,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5360 states, 5358 states have (on average 2.662933930571109) internal successors, (14268), 5359 states have internal predecessors, (14268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:46,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5360 states to 5360 states and 14268 transitions. [2021-03-10 17:59:46,460 INFO L78 Accepts]: Start accepts. Automaton has 5360 states and 14268 transitions. Word has length 108 [2021-03-10 17:59:46,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:59:46,460 INFO L480 AbstractCegarLoop]: Abstraction has 5360 states and 14268 transitions. [2021-03-10 17:59:46,460 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:46,460 INFO L276 IsEmpty]: Start isEmpty. Operand 5360 states and 14268 transitions. [2021-03-10 17:59:46,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:59:46,465 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:59:46,465 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:59:46,465 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2021-03-10 17:59:46,465 INFO L428 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]=== [2021-03-10 17:59:46,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:59:46,465 INFO L82 PathProgramCache]: Analyzing trace with hash -1433261321, now seen corresponding path program 245 times [2021-03-10 17:59:46,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:59:46,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561261678] [2021-03-10 17:59:46,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:59:46,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:59:47,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:59:47,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561261678] [2021-03-10 17:59:47,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:59:47,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:59:47,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499486322] [2021-03-10 17:59:47,264 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:59:47,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:59:47,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:59:47,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:59:47,264 INFO L87 Difference]: Start difference. First operand 5360 states and 14268 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:48,122 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 17:59:48,316 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:59:48,594 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:59:48,850 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 17:59:49,187 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:59:49,502 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 17:59:49,839 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 17:59:50,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:59:50,138 INFO L93 Difference]: Finished difference Result 15490 states and 40078 transitions. [2021-03-10 17:59:50,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:59:50,140 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:59:50,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:59:50,155 INFO L225 Difference]: With dead ends: 15490 [2021-03-10 17:59:50,155 INFO L226 Difference]: Without dead ends: 15490 [2021-03-10 17:59:50,155 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2671.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:59:50,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15490 states. [2021-03-10 17:59:50,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15490 to 5373. [2021-03-10 17:59:50,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5373 states, 5371 states have (on average 2.6635635822007075) internal successors, (14306), 5372 states have internal predecessors, (14306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:50,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5373 states to 5373 states and 14306 transitions. [2021-03-10 17:59:50,253 INFO L78 Accepts]: Start accepts. Automaton has 5373 states and 14306 transitions. Word has length 108 [2021-03-10 17:59:50,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:59:50,253 INFO L480 AbstractCegarLoop]: Abstraction has 5373 states and 14306 transitions. [2021-03-10 17:59:50,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:50,253 INFO L276 IsEmpty]: Start isEmpty. Operand 5373 states and 14306 transitions. [2021-03-10 17:59:50,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:59:50,257 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:59:50,257 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:59:50,257 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2021-03-10 17:59:50,257 INFO L428 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]=== [2021-03-10 17:59:50,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:59:50,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1332548157, now seen corresponding path program 246 times [2021-03-10 17:59:50,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:59:50,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472077059] [2021-03-10 17:59:50,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:59:50,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:59:51,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:59:51,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472077059] [2021-03-10 17:59:51,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:59:51,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:59:51,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580518126] [2021-03-10 17:59:51,001 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:59:51,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:59:51,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:59:51,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:59:51,001 INFO L87 Difference]: Start difference. First operand 5373 states and 14306 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:51,873 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2021-03-10 17:59:52,077 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 41 [2021-03-10 17:59:52,382 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-03-10 17:59:52,663 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2021-03-10 17:59:53,056 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2021-03-10 17:59:53,395 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2021-03-10 17:59:53,783 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2021-03-10 17:59:54,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:59:54,109 INFO L93 Difference]: Finished difference Result 13714 states and 35411 transitions. [2021-03-10 17:59:54,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:59:54,111 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:59:54,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:59:54,121 INFO L225 Difference]: With dead ends: 13714 [2021-03-10 17:59:54,121 INFO L226 Difference]: Without dead ends: 13714 [2021-03-10 17:59:54,121 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2713.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:59:54,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13714 states. [2021-03-10 17:59:54,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13714 to 5334. [2021-03-10 17:59:54,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5334 states, 5332 states have (on average 2.6616654163540887) internal successors, (14192), 5333 states have internal predecessors, (14192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:54,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5334 states to 5334 states and 14192 transitions. [2021-03-10 17:59:54,202 INFO L78 Accepts]: Start accepts. Automaton has 5334 states and 14192 transitions. Word has length 108 [2021-03-10 17:59:54,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:59:54,202 INFO L480 AbstractCegarLoop]: Abstraction has 5334 states and 14192 transitions. [2021-03-10 17:59:54,202 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:54,202 INFO L276 IsEmpty]: Start isEmpty. Operand 5334 states and 14192 transitions. [2021-03-10 17:59:54,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:59:54,206 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:59:54,206 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:59:54,206 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2021-03-10 17:59:54,206 INFO L428 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]=== [2021-03-10 17:59:54,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:59:54,206 INFO L82 PathProgramCache]: Analyzing trace with hash -1726023397, now seen corresponding path program 247 times [2021-03-10 17:59:54,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:59:54,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500981003] [2021-03-10 17:59:54,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:59:54,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:59:54,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:59:54,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500981003] [2021-03-10 17:59:54,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:59:54,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:59:54,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585839308] [2021-03-10 17:59:54,903 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:59:54,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:59:54,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:59:54,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:59:54,903 INFO L87 Difference]: Start difference. First operand 5334 states and 14192 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:55,742 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 17:59:55,938 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:59:56,225 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 17:59:56,523 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 17:59:56,808 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 17:59:57,117 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 17:59:57,463 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 17:59:57,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:59:57,750 INFO L93 Difference]: Finished difference Result 15471 states and 40117 transitions. [2021-03-10 17:59:57,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:59:57,752 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 17:59:57,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:59:57,767 INFO L225 Difference]: With dead ends: 15471 [2021-03-10 17:59:57,767 INFO L226 Difference]: Without dead ends: 15471 [2021-03-10 17:59:57,767 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2562.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:59:57,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15471 states. [2021-03-10 17:59:57,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15471 to 5360. [2021-03-10 17:59:57,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5360 states, 5358 states have (on average 2.662933930571109) internal successors, (14268), 5359 states have internal predecessors, (14268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:57,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5360 states to 5360 states and 14268 transitions. [2021-03-10 17:59:57,863 INFO L78 Accepts]: Start accepts. Automaton has 5360 states and 14268 transitions. Word has length 108 [2021-03-10 17:59:57,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:59:57,863 INFO L480 AbstractCegarLoop]: Abstraction has 5360 states and 14268 transitions. [2021-03-10 17:59:57,864 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:57,864 INFO L276 IsEmpty]: Start isEmpty. Operand 5360 states and 14268 transitions. [2021-03-10 17:59:57,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 17:59:57,867 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:59:57,867 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:59:57,867 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2021-03-10 17:59:57,867 INFO L428 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]=== [2021-03-10 17:59:57,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:59:57,868 INFO L82 PathProgramCache]: Analyzing trace with hash 211949399, now seen corresponding path program 248 times [2021-03-10 17:59:57,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:59:57,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992337272] [2021-03-10 17:59:57,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:59:57,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:59:58,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:59:58,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992337272] [2021-03-10 17:59:58,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:59:58,622 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:59:58,622 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878597197] [2021-03-10 17:59:58,622 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:59:58,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:59:58,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:59:58,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:59:58,623 INFO L87 Difference]: Start difference. First operand 5360 states and 14268 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:59,323 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2021-03-10 17:59:59,488 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 17:59:59,690 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 17:59:59,976 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 18:00:00,335 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 18:00:00,673 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 18:00:01,028 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 18:00:01,377 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 18:00:01,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:00:01,696 INFO L93 Difference]: Finished difference Result 16198 states and 41746 transitions. [2021-03-10 18:00:01,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 18:00:01,699 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 18:00:01,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:00:01,717 INFO L225 Difference]: With dead ends: 16198 [2021-03-10 18:00:01,717 INFO L226 Difference]: Without dead ends: 16198 [2021-03-10 18:00:01,717 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2770.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 18:00:01,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16198 states. [2021-03-10 18:00:01,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16198 to 5347. [2021-03-10 18:00:01,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5347 states, 5345 states have (on average 2.6623012160898036) internal successors, (14230), 5346 states have internal predecessors, (14230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:01,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5347 states to 5347 states and 14230 transitions. [2021-03-10 18:00:01,829 INFO L78 Accepts]: Start accepts. Automaton has 5347 states and 14230 transitions. Word has length 108 [2021-03-10 18:00:01,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:00:01,829 INFO L480 AbstractCegarLoop]: Abstraction has 5347 states and 14230 transitions. [2021-03-10 18:00:01,829 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:01,829 INFO L276 IsEmpty]: Start isEmpty. Operand 5347 states and 14230 transitions. [2021-03-10 18:00:01,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 18:00:01,833 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:00:01,833 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:00:01,833 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2021-03-10 18:00:01,834 INFO L428 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]=== [2021-03-10 18:00:01,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:00:01,834 INFO L82 PathProgramCache]: Analyzing trace with hash -1000697037, now seen corresponding path program 249 times [2021-03-10 18:00:01,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:00:01,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057517982] [2021-03-10 18:00:01,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:00:01,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:00:02,708 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 23 [2021-03-10 18:00:02,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:00:02,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057517982] [2021-03-10 18:00:02,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:00:02,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 18:00:02,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881875045] [2021-03-10 18:00:02,717 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 18:00:02,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:00:02,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 18:00:02,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 18:00:02,717 INFO L87 Difference]: Start difference. First operand 5347 states and 14230 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:03,464 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2021-03-10 18:00:03,647 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 18:00:03,870 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 18:00:04,171 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 18:00:04,485 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 18:00:04,806 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 18:00:05,150 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 18:00:05,500 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 18:00:05,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:00:05,843 INFO L93 Difference]: Finished difference Result 17641 states and 45157 transitions. [2021-03-10 18:00:05,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 18:00:05,846 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 18:00:05,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:00:05,864 INFO L225 Difference]: With dead ends: 17641 [2021-03-10 18:00:05,864 INFO L226 Difference]: Without dead ends: 17641 [2021-03-10 18:00:05,864 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2909.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 18:00:05,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17641 states. [2021-03-10 18:00:05,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17641 to 5360. [2021-03-10 18:00:05,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5360 states, 5358 states have (on average 2.662933930571109) internal successors, (14268), 5359 states have internal predecessors, (14268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:05,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5360 states to 5360 states and 14268 transitions. [2021-03-10 18:00:05,973 INFO L78 Accepts]: Start accepts. Automaton has 5360 states and 14268 transitions. Word has length 108 [2021-03-10 18:00:05,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:00:05,973 INFO L480 AbstractCegarLoop]: Abstraction has 5360 states and 14268 transitions. [2021-03-10 18:00:05,973 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:05,973 INFO L276 IsEmpty]: Start isEmpty. Operand 5360 states and 14268 transitions. [2021-03-10 18:00:05,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 18:00:05,978 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:00:05,978 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:00:05,978 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2021-03-10 18:00:05,978 INFO L428 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]=== [2021-03-10 18:00:05,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:00:05,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1765112441, now seen corresponding path program 250 times [2021-03-10 18:00:05,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:00:05,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117829816] [2021-03-10 18:00:05,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:00:05,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:00:06,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:00:06,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117829816] [2021-03-10 18:00:06,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:00:06,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 18:00:06,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345300207] [2021-03-10 18:00:06,813 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 18:00:06,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:00:06,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 18:00:06,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 18:00:06,815 INFO L87 Difference]: Start difference. First operand 5360 states and 14268 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:07,588 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2021-03-10 18:00:07,763 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2021-03-10 18:00:07,973 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 41 [2021-03-10 18:00:08,298 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-03-10 18:00:08,666 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2021-03-10 18:00:08,996 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 55 [2021-03-10 18:00:09,389 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 60 [2021-03-10 18:00:09,794 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2021-03-10 18:00:10,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:00:10,137 INFO L93 Difference]: Finished difference Result 14856 states and 38165 transitions. [2021-03-10 18:00:10,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 18:00:10,140 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 18:00:10,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:00:10,156 INFO L225 Difference]: With dead ends: 14856 [2021-03-10 18:00:10,156 INFO L226 Difference]: Without dead ends: 14856 [2021-03-10 18:00:10,157 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2923.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 18:00:10,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14856 states. [2021-03-10 18:00:10,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14856 to 5308. [2021-03-10 18:00:10,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5308 states, 5306 states have (on average 2.6603844704108557) internal successors, (14116), 5307 states have internal predecessors, (14116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:10,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5308 states to 5308 states and 14116 transitions. [2021-03-10 18:00:10,263 INFO L78 Accepts]: Start accepts. Automaton has 5308 states and 14116 transitions. Word has length 108 [2021-03-10 18:00:10,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:00:10,263 INFO L480 AbstractCegarLoop]: Abstraction has 5308 states and 14116 transitions. [2021-03-10 18:00:10,263 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:10,263 INFO L276 IsEmpty]: Start isEmpty. Operand 5308 states and 14116 transitions. [2021-03-10 18:00:10,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 18:00:10,268 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:00:10,268 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:00:10,268 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2021-03-10 18:00:10,268 INFO L428 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]=== [2021-03-10 18:00:10,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:00:10,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1105154359, now seen corresponding path program 251 times [2021-03-10 18:00:10,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:00:10,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954050138] [2021-03-10 18:00:10,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:00:10,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:00:11,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:00:11,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954050138] [2021-03-10 18:00:11,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:00:11,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 18:00:11,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019979386] [2021-03-10 18:00:11,087 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 18:00:11,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:00:11,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 18:00:11,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 18:00:11,087 INFO L87 Difference]: Start difference. First operand 5308 states and 14116 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:11,797 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 29 [2021-03-10 18:00:11,975 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2021-03-10 18:00:12,184 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 18:00:12,434 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 18:00:12,745 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 18:00:13,041 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 18:00:13,375 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 18:00:13,824 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 18:00:14,208 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 18:00:14,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:00:14,555 INFO L93 Difference]: Finished difference Result 15971 states and 41523 transitions. [2021-03-10 18:00:14,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 18:00:14,557 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 18:00:14,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:00:14,573 INFO L225 Difference]: With dead ends: 15971 [2021-03-10 18:00:14,573 INFO L226 Difference]: Without dead ends: 15971 [2021-03-10 18:00:14,573 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3025.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 18:00:14,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15971 states. [2021-03-10 18:00:14,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15971 to 5360. [2021-03-10 18:00:14,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5360 states, 5358 states have (on average 2.662933930571109) internal successors, (14268), 5359 states have internal predecessors, (14268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:14,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5360 states to 5360 states and 14268 transitions. [2021-03-10 18:00:14,675 INFO L78 Accepts]: Start accepts. Automaton has 5360 states and 14268 transitions. Word has length 108 [2021-03-10 18:00:14,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:00:14,675 INFO L480 AbstractCegarLoop]: Abstraction has 5360 states and 14268 transitions. [2021-03-10 18:00:14,675 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:14,675 INFO L276 IsEmpty]: Start isEmpty. Operand 5360 states and 14268 transitions. [2021-03-10 18:00:14,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 18:00:14,679 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:00:14,679 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:00:14,679 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2021-03-10 18:00:14,679 INFO L428 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]=== [2021-03-10 18:00:14,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:00:14,680 INFO L82 PathProgramCache]: Analyzing trace with hash -1460673797, now seen corresponding path program 252 times [2021-03-10 18:00:14,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:00:14,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052084082] [2021-03-10 18:00:14,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:00:14,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:00:15,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:00:15,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052084082] [2021-03-10 18:00:15,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:00:15,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 18:00:15,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408626005] [2021-03-10 18:00:15,506 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 18:00:15,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:00:15,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 18:00:15,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 18:00:15,506 INFO L87 Difference]: Start difference. First operand 5360 states and 14268 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:16,276 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2021-03-10 18:00:16,459 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 18:00:16,682 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 18:00:17,013 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 18:00:17,296 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 18:00:17,694 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 18:00:18,037 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 18:00:18,431 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 18:00:18,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:00:18,822 INFO L93 Difference]: Finished difference Result 18416 states and 47744 transitions. [2021-03-10 18:00:18,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 18:00:18,825 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 18:00:18,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:00:18,845 INFO L225 Difference]: With dead ends: 18416 [2021-03-10 18:00:18,845 INFO L226 Difference]: Without dead ends: 18416 [2021-03-10 18:00:18,845 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2858.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 18:00:18,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18416 states. [2021-03-10 18:00:18,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18416 to 5373. [2021-03-10 18:00:18,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5373 states, 5371 states have (on average 2.6635635822007075) internal successors, (14306), 5372 states have internal predecessors, (14306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:18,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5373 states to 5373 states and 14306 transitions. [2021-03-10 18:00:18,967 INFO L78 Accepts]: Start accepts. Automaton has 5373 states and 14306 transitions. Word has length 108 [2021-03-10 18:00:18,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:00:18,967 INFO L480 AbstractCegarLoop]: Abstraction has 5373 states and 14306 transitions. [2021-03-10 18:00:18,967 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:18,968 INFO L276 IsEmpty]: Start isEmpty. Operand 5373 states and 14306 transitions. [2021-03-10 18:00:18,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 18:00:18,972 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:00:18,972 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:00:18,973 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2021-03-10 18:00:18,973 INFO L428 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]=== [2021-03-10 18:00:18,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:00:18,973 INFO L82 PathProgramCache]: Analyzing trace with hash 477298999, now seen corresponding path program 253 times [2021-03-10 18:00:18,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:00:18,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896082813] [2021-03-10 18:00:18,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:00:18,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:00:19,903 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 23 [2021-03-10 18:00:19,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:00:19,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896082813] [2021-03-10 18:00:19,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:00:19,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 18:00:19,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449662312] [2021-03-10 18:00:19,915 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 18:00:19,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:00:19,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 18:00:19,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 18:00:19,915 INFO L87 Difference]: Start difference. First operand 5373 states and 14306 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:20,564 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 29 [2021-03-10 18:00:20,765 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2021-03-10 18:00:20,965 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 18:00:21,209 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 18:00:21,568 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 18:00:21,860 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 18:00:22,257 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 18:00:22,611 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 18:00:22,962 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 18:00:23,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:00:23,270 INFO L93 Difference]: Finished difference Result 16758 states and 43307 transitions. [2021-03-10 18:00:23,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 18:00:23,272 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 18:00:23,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:00:23,289 INFO L225 Difference]: With dead ends: 16758 [2021-03-10 18:00:23,289 INFO L226 Difference]: Without dead ends: 16758 [2021-03-10 18:00:23,289 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3105.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 18:00:23,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16758 states. [2021-03-10 18:00:23,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16758 to 5334. [2021-03-10 18:00:23,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5334 states, 5332 states have (on average 2.6616654163540887) internal successors, (14192), 5333 states have internal predecessors, (14192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:23,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5334 states to 5334 states and 14192 transitions. [2021-03-10 18:00:23,390 INFO L78 Accepts]: Start accepts. Automaton has 5334 states and 14192 transitions. Word has length 108 [2021-03-10 18:00:23,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:00:23,391 INFO L480 AbstractCegarLoop]: Abstraction has 5334 states and 14192 transitions. [2021-03-10 18:00:23,391 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:23,391 INFO L276 IsEmpty]: Start isEmpty. Operand 5334 states and 14192 transitions. [2021-03-10 18:00:23,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 18:00:23,394 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:00:23,395 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:00:23,395 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2021-03-10 18:00:23,395 INFO L428 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]=== [2021-03-10 18:00:23,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:00:23,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1701045887, now seen corresponding path program 254 times [2021-03-10 18:00:23,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:00:23,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428811872] [2021-03-10 18:00:23,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:00:23,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:00:24,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:00:24,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428811872] [2021-03-10 18:00:24,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:00:24,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 18:00:24,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868577836] [2021-03-10 18:00:24,132 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 18:00:24,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:00:24,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 18:00:24,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 18:00:24,132 INFO L87 Difference]: Start difference. First operand 5334 states and 14192 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:24,889 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2021-03-10 18:00:25,078 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 18:00:25,296 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 18:00:25,644 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 18:00:25,982 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 18:00:26,314 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 18:00:26,654 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 18:00:27,063 WARN L205 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 18:00:27,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:00:27,541 INFO L93 Difference]: Finished difference Result 17966 states and 46215 transitions. [2021-03-10 18:00:27,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 18:00:27,544 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 18:00:27,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:00:27,562 INFO L225 Difference]: With dead ends: 17966 [2021-03-10 18:00:27,563 INFO L226 Difference]: Without dead ends: 17966 [2021-03-10 18:00:27,563 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2806.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 18:00:27,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17966 states. [2021-03-10 18:00:27,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17966 to 5360. [2021-03-10 18:00:27,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5360 states, 5358 states have (on average 2.662933930571109) internal successors, (14268), 5359 states have internal predecessors, (14268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:27,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5360 states to 5360 states and 14268 transitions. [2021-03-10 18:00:27,692 INFO L78 Accepts]: Start accepts. Automaton has 5360 states and 14268 transitions. Word has length 108 [2021-03-10 18:00:27,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:00:27,692 INFO L480 AbstractCegarLoop]: Abstraction has 5360 states and 14268 transitions. [2021-03-10 18:00:27,693 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:27,693 INFO L276 IsEmpty]: Start isEmpty. Operand 5360 states and 14268 transitions. [2021-03-10 18:00:27,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 18:00:27,697 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:00:27,697 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:00:27,697 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2021-03-10 18:00:27,697 INFO L428 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]=== [2021-03-10 18:00:27,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:00:27,697 INFO L82 PathProgramCache]: Analyzing trace with hash 236926909, now seen corresponding path program 255 times [2021-03-10 18:00:27,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:00:27,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213464432] [2021-03-10 18:00:27,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:00:27,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:00:28,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:00:28,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213464432] [2021-03-10 18:00:28,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:00:28,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 18:00:28,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933454651] [2021-03-10 18:00:28,514 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 18:00:28,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:00:28,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 18:00:28,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 18:00:28,515 INFO L87 Difference]: Start difference. First operand 5360 states and 14268 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:29,300 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2021-03-10 18:00:29,496 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 18:00:29,731 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 18:00:30,092 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 18:00:30,461 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 18:00:30,797 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 18:00:31,205 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 18:00:31,586 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 18:00:32,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:00:32,045 INFO L93 Difference]: Finished difference Result 18693 states and 47844 transitions. [2021-03-10 18:00:32,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 18:00:32,047 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 18:00:32,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:00:32,066 INFO L225 Difference]: With dead ends: 18693 [2021-03-10 18:00:32,066 INFO L226 Difference]: Without dead ends: 18693 [2021-03-10 18:00:32,066 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2944.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 18:00:32,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18693 states. [2021-03-10 18:00:32,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18693 to 5347. [2021-03-10 18:00:32,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5347 states, 5345 states have (on average 2.6623012160898036) internal successors, (14230), 5346 states have internal predecessors, (14230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:32,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5347 states to 5347 states and 14230 transitions. [2021-03-10 18:00:32,180 INFO L78 Accepts]: Start accepts. Automaton has 5347 states and 14230 transitions. Word has length 108 [2021-03-10 18:00:32,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:00:32,180 INFO L480 AbstractCegarLoop]: Abstraction has 5347 states and 14230 transitions. [2021-03-10 18:00:32,180 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:32,180 INFO L276 IsEmpty]: Start isEmpty. Operand 5347 states and 14230 transitions. [2021-03-10 18:00:32,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 18:00:32,184 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:00:32,184 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:00:32,184 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2021-03-10 18:00:32,184 INFO L428 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]=== [2021-03-10 18:00:32,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:00:32,184 INFO L82 PathProgramCache]: Analyzing trace with hash -975719527, now seen corresponding path program 256 times [2021-03-10 18:00:32,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:00:32,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388638994] [2021-03-10 18:00:32,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:00:32,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:00:33,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:00:33,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388638994] [2021-03-10 18:00:33,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:00:33,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 18:00:33,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231902878] [2021-03-10 18:00:33,014 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 18:00:33,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:00:33,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 18:00:33,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 18:00:33,015 INFO L87 Difference]: Start difference. First operand 5347 states and 14230 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:33,743 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2021-03-10 18:00:33,928 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 18:00:34,135 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 18:00:34,453 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 18:00:34,777 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 18:00:35,090 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 18:00:35,456 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 18:00:35,799 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 18:00:36,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:00:36,149 INFO L93 Difference]: Finished difference Result 18106 states and 46444 transitions. [2021-03-10 18:00:36,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 18:00:36,151 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 18:00:36,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:00:36,168 INFO L225 Difference]: With dead ends: 18106 [2021-03-10 18:00:36,169 INFO L226 Difference]: Without dead ends: 18106 [2021-03-10 18:00:36,169 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2848.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 18:00:36,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18106 states. [2021-03-10 18:00:36,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18106 to 5360. [2021-03-10 18:00:36,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5360 states, 5358 states have (on average 2.662933930571109) internal successors, (14268), 5359 states have internal predecessors, (14268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:36,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5360 states to 5360 states and 14268 transitions. [2021-03-10 18:00:36,276 INFO L78 Accepts]: Start accepts. Automaton has 5360 states and 14268 transitions. Word has length 108 [2021-03-10 18:00:36,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:00:36,276 INFO L480 AbstractCegarLoop]: Abstraction has 5360 states and 14268 transitions. [2021-03-10 18:00:36,276 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:36,276 INFO L276 IsEmpty]: Start isEmpty. Operand 5360 states and 14268 transitions. [2021-03-10 18:00:36,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 18:00:36,280 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:00:36,280 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:00:36,280 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2021-03-10 18:00:36,280 INFO L428 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]=== [2021-03-10 18:00:36,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:00:36,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1790089951, now seen corresponding path program 257 times [2021-03-10 18:00:36,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:00:36,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684014288] [2021-03-10 18:00:36,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:00:36,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:00:37,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:00:37,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684014288] [2021-03-10 18:00:37,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:00:37,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 18:00:37,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771843250] [2021-03-10 18:00:37,047 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 18:00:37,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:00:37,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 18:00:37,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 18:00:37,048 INFO L87 Difference]: Start difference. First operand 5360 states and 14268 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:37,831 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2021-03-10 18:00:38,020 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2021-03-10 18:00:38,232 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 41 [2021-03-10 18:00:38,553 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2021-03-10 18:00:38,893 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 50 [2021-03-10 18:00:39,256 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2021-03-10 18:00:39,633 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 62 [2021-03-10 18:00:40,006 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 66 [2021-03-10 18:00:40,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:00:40,323 INFO L93 Difference]: Finished difference Result 15321 states and 39452 transitions. [2021-03-10 18:00:40,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 18:00:40,325 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 18:00:40,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:00:40,340 INFO L225 Difference]: With dead ends: 15321 [2021-03-10 18:00:40,340 INFO L226 Difference]: Without dead ends: 15321 [2021-03-10 18:00:40,341 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2892.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 18:00:40,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15321 states. [2021-03-10 18:00:40,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15321 to 5256. [2021-03-10 18:00:40,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5256 states, 5254 states have (on average 2.657784545108489) internal successors, (13964), 5255 states have internal predecessors, (13964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:40,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5256 states to 5256 states and 13964 transitions. [2021-03-10 18:00:40,445 INFO L78 Accepts]: Start accepts. Automaton has 5256 states and 13964 transitions. Word has length 108 [2021-03-10 18:00:40,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:00:40,445 INFO L480 AbstractCegarLoop]: Abstraction has 5256 states and 13964 transitions. [2021-03-10 18:00:40,445 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:40,445 INFO L276 IsEmpty]: Start isEmpty. Operand 5256 states and 13964 transitions. [2021-03-10 18:00:40,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 18:00:40,448 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:00:40,448 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:00:40,449 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2021-03-10 18:00:40,449 INFO L428 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]=== [2021-03-10 18:00:40,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:00:40,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1756460919, now seen corresponding path program 258 times [2021-03-10 18:00:40,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:00:40,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435025476] [2021-03-10 18:00:40,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:00:40,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:00:41,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:00:41,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435025476] [2021-03-10 18:00:41,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:00:41,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 18:00:41,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226559709] [2021-03-10 18:00:41,411 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 18:00:41,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:00:41,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 18:00:41,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 18:00:41,411 INFO L87 Difference]: Start difference. First operand 5256 states and 13964 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:42,266 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2021-03-10 18:00:42,454 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 18:00:42,725 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 18:00:42,986 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-03-10 18:00:43,275 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 18:00:43,589 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 18:00:44,017 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 18:00:44,402 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 18:00:44,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:00:44,761 INFO L93 Difference]: Finished difference Result 16506 states and 43048 transitions. [2021-03-10 18:00:44,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 18:00:44,763 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 18:00:44,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:00:44,779 INFO L225 Difference]: With dead ends: 16506 [2021-03-10 18:00:44,779 INFO L226 Difference]: Without dead ends: 16506 [2021-03-10 18:00:44,779 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3033.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 18:00:44,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16506 states. [2021-03-10 18:00:44,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16506 to 5282. [2021-03-10 18:00:44,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5282 states, 5280 states have (on average 2.659090909090909) internal successors, (14040), 5281 states have internal predecessors, (14040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:44,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5282 states to 5282 states and 14040 transitions. [2021-03-10 18:00:44,878 INFO L78 Accepts]: Start accepts. Automaton has 5282 states and 14040 transitions. Word has length 108 [2021-03-10 18:00:44,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:00:44,878 INFO L480 AbstractCegarLoop]: Abstraction has 5282 states and 14040 transitions. [2021-03-10 18:00:44,878 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:44,878 INFO L276 IsEmpty]: Start isEmpty. Operand 5282 states and 14040 transitions. [2021-03-10 18:00:44,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 18:00:44,882 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:00:44,882 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:00:44,882 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2021-03-10 18:00:44,882 INFO L428 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]=== [2021-03-10 18:00:44,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:00:44,882 INFO L82 PathProgramCache]: Analyzing trace with hash -1986774725, now seen corresponding path program 259 times [2021-03-10 18:00:44,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:00:44,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817130251] [2021-03-10 18:00:44,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:00:44,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:00:45,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:00:45,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817130251] [2021-03-10 18:00:45,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:00:45,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 18:00:45,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522073090] [2021-03-10 18:00:45,787 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 18:00:45,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:00:45,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 18:00:45,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 18:00:45,788 INFO L87 Difference]: Start difference. First operand 5282 states and 14040 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:46,661 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2021-03-10 18:00:46,858 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 18:00:47,171 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 18:00:47,432 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-03-10 18:00:47,742 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 18:00:48,065 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 18:00:48,554 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 18:00:48,967 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 18:00:49,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:00:49,372 INFO L93 Difference]: Finished difference Result 19317 states and 50287 transitions. [2021-03-10 18:00:49,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 18:00:49,374 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 18:00:49,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:00:49,393 INFO L225 Difference]: With dead ends: 19317 [2021-03-10 18:00:49,393 INFO L226 Difference]: Without dead ends: 19317 [2021-03-10 18:00:49,393 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3045.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 18:00:49,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19317 states. [2021-03-10 18:00:49,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19317 to 5308. [2021-03-10 18:00:49,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5308 states, 5306 states have (on average 2.6603844704108557) internal successors, (14116), 5307 states have internal predecessors, (14116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:49,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5308 states to 5308 states and 14116 transitions. [2021-03-10 18:00:49,509 INFO L78 Accepts]: Start accepts. Automaton has 5308 states and 14116 transitions. Word has length 108 [2021-03-10 18:00:49,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:00:49,509 INFO L480 AbstractCegarLoop]: Abstraction has 5308 states and 14116 transitions. [2021-03-10 18:00:49,509 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:49,509 INFO L276 IsEmpty]: Start isEmpty. Operand 5308 states and 14116 transitions. [2021-03-10 18:00:49,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 18:00:49,513 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:00:49,513 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:00:49,513 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2021-03-10 18:00:49,513 INFO L428 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]=== [2021-03-10 18:00:49,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:00:49,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1198758203, now seen corresponding path program 260 times [2021-03-10 18:00:49,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:00:49,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228353477] [2021-03-10 18:00:49,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:00:49,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:00:50,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:00:50,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228353477] [2021-03-10 18:00:50,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:00:50,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 18:00:50,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815744687] [2021-03-10 18:00:50,412 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 18:00:50,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:00:50,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 18:00:50,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 18:00:50,412 INFO L87 Difference]: Start difference. First operand 5308 states and 14116 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:51,211 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2021-03-10 18:00:51,401 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 18:00:51,693 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 18:00:51,957 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-03-10 18:00:52,267 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 18:00:52,685 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 18:00:53,057 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 18:00:53,448 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 18:00:53,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:00:53,880 INFO L93 Difference]: Finished difference Result 19071 states and 49579 transitions. [2021-03-10 18:00:53,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 18:00:53,883 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 18:00:53,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:00:53,903 INFO L225 Difference]: With dead ends: 19071 [2021-03-10 18:00:53,903 INFO L226 Difference]: Without dead ends: 19071 [2021-03-10 18:00:53,903 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2973.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 18:00:53,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19071 states. [2021-03-10 18:00:54,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19071 to 5321. [2021-03-10 18:00:54,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5321 states, 5319 states have (on average 2.661026508742245) internal successors, (14154), 5320 states have internal predecessors, (14154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:54,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5321 states to 5321 states and 14154 transitions. [2021-03-10 18:00:54,032 INFO L78 Accepts]: Start accepts. Automaton has 5321 states and 14154 transitions. Word has length 108 [2021-03-10 18:00:54,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:00:54,032 INFO L480 AbstractCegarLoop]: Abstraction has 5321 states and 14154 transitions. [2021-03-10 18:00:54,032 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:54,032 INFO L276 IsEmpty]: Start isEmpty. Operand 5321 states and 14154 transitions. [2021-03-10 18:00:54,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 18:00:54,036 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:00:54,036 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:00:54,036 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2021-03-10 18:00:54,036 INFO L428 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]=== [2021-03-10 18:00:54,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:00:54,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1158236297, now seen corresponding path program 261 times [2021-03-10 18:00:54,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:00:54,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64554300] [2021-03-10 18:00:54,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:00:54,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:00:55,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:00:55,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64554300] [2021-03-10 18:00:55,011 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:00:55,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 18:00:55,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880711320] [2021-03-10 18:00:55,012 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 18:00:55,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:00:55,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 18:00:55,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 18:00:55,012 INFO L87 Difference]: Start difference. First operand 5321 states and 14154 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:55,794 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2021-03-10 18:00:55,979 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 18:00:56,245 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 18:00:56,492 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-03-10 18:00:56,784 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 18:00:57,152 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 18:00:57,522 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 18:00:57,884 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 18:00:58,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:00:58,200 INFO L93 Difference]: Finished difference Result 17413 states and 45142 transitions. [2021-03-10 18:00:58,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 18:00:58,202 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 18:00:58,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:00:58,219 INFO L225 Difference]: With dead ends: 17413 [2021-03-10 18:00:58,220 INFO L226 Difference]: Without dead ends: 17413 [2021-03-10 18:00:58,220 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3019.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 18:00:58,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17413 states. [2021-03-10 18:00:58,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17413 to 5269. [2021-03-10 18:00:58,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5269 states, 5267 states have (on average 2.658439339282324) internal successors, (14002), 5268 states have internal predecessors, (14002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:58,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5269 states to 5269 states and 14002 transitions. [2021-03-10 18:00:58,328 INFO L78 Accepts]: Start accepts. Automaton has 5269 states and 14002 transitions. Word has length 108 [2021-03-10 18:00:58,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:00:58,328 INFO L480 AbstractCegarLoop]: Abstraction has 5269 states and 14002 transitions. [2021-03-10 18:00:58,328 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:58,328 INFO L276 IsEmpty]: Start isEmpty. Operand 5269 states and 14002 transitions. [2021-03-10 18:00:58,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 18:00:58,332 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:00:58,332 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:00:58,332 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2021-03-10 18:00:58,332 INFO L428 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]=== [2021-03-10 18:00:58,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:00:58,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1529679099, now seen corresponding path program 262 times [2021-03-10 18:00:58,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:00:58,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928332269] [2021-03-10 18:00:58,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:00:58,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:00:59,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:00:59,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928332269] [2021-03-10 18:00:59,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:00:59,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 18:00:59,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849386227] [2021-03-10 18:00:59,183 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 18:00:59,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:00:59,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 18:00:59,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 18:00:59,184 INFO L87 Difference]: Start difference. First operand 5269 states and 14002 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:59,988 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2021-03-10 18:01:00,184 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 18:01:00,475 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 18:01:00,758 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 18:01:01,057 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 18:01:01,383 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 18:01:01,840 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 18:01:02,258 WARN L205 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 18:01:02,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:01:02,673 INFO L93 Difference]: Finished difference Result 18797 states and 48520 transitions. [2021-03-10 18:01:02,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 18:01:02,675 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 18:01:02,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:01:02,693 INFO L225 Difference]: With dead ends: 18797 [2021-03-10 18:01:02,693 INFO L226 Difference]: Without dead ends: 18797 [2021-03-10 18:01:02,693 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2954.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 18:01:02,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18797 states. [2021-03-10 18:01:02,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18797 to 5321. [2021-03-10 18:01:02,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5321 states, 5319 states have (on average 2.661026508742245) internal successors, (14154), 5320 states have internal predecessors, (14154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:02,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5321 states to 5321 states and 14154 transitions. [2021-03-10 18:01:02,801 INFO L78 Accepts]: Start accepts. Automaton has 5321 states and 14154 transitions. Word has length 108 [2021-03-10 18:01:02,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:01:02,801 INFO L480 AbstractCegarLoop]: Abstraction has 5321 states and 14154 transitions. [2021-03-10 18:01:02,801 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:02,801 INFO L276 IsEmpty]: Start isEmpty. Operand 5321 states and 14154 transitions. [2021-03-10 18:01:02,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 18:01:02,805 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:01:02,805 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:01:02,805 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2021-03-10 18:01:02,805 INFO L428 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]=== [2021-03-10 18:01:02,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:01:02,805 INFO L82 PathProgramCache]: Analyzing trace with hash 1655853829, now seen corresponding path program 263 times [2021-03-10 18:01:02,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:01:02,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538404077] [2021-03-10 18:01:02,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:01:02,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:01:03,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:01:03,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538404077] [2021-03-10 18:01:03,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:01:03,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 18:01:03,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093347261] [2021-03-10 18:01:03,626 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 18:01:03,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:01:03,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 18:01:03,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 18:01:03,626 INFO L87 Difference]: Start difference. First operand 5321 states and 14154 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:04,418 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2021-03-10 18:01:04,612 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 18:01:04,896 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 18:01:05,176 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 18:01:05,468 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 18:01:05,865 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 18:01:06,226 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 18:01:06,622 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 18:01:07,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:01:07,039 INFO L93 Difference]: Finished difference Result 21242 states and 54741 transitions. [2021-03-10 18:01:07,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 18:01:07,042 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 18:01:07,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:01:07,065 INFO L225 Difference]: With dead ends: 21242 [2021-03-10 18:01:07,065 INFO L226 Difference]: Without dead ends: 21242 [2021-03-10 18:01:07,065 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2874.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 18:01:07,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21242 states. [2021-03-10 18:01:07,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21242 to 5334. [2021-03-10 18:01:07,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5334 states, 5332 states have (on average 2.6616654163540887) internal successors, (14192), 5333 states have internal predecessors, (14192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:07,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5334 states to 5334 states and 14192 transitions. [2021-03-10 18:01:07,192 INFO L78 Accepts]: Start accepts. Automaton has 5334 states and 14192 transitions. Word has length 108 [2021-03-10 18:01:07,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:01:07,192 INFO L480 AbstractCegarLoop]: Abstraction has 5334 states and 14192 transitions. [2021-03-10 18:01:07,193 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:07,193 INFO L276 IsEmpty]: Start isEmpty. Operand 5334 states and 14192 transitions. [2021-03-10 18:01:07,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 18:01:07,196 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:01:07,196 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:01:07,196 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2021-03-10 18:01:07,196 INFO L428 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]=== [2021-03-10 18:01:07,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:01:07,197 INFO L82 PathProgramCache]: Analyzing trace with hash -701140671, now seen corresponding path program 264 times [2021-03-10 18:01:07,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:01:07,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063569148] [2021-03-10 18:01:07,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:01:07,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:01:08,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:01:08,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063569148] [2021-03-10 18:01:08,059 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:01:08,059 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 18:01:08,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650863860] [2021-03-10 18:01:08,060 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 18:01:08,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:01:08,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 18:01:08,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 18:01:08,060 INFO L87 Difference]: Start difference. First operand 5334 states and 14192 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:08,887 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2021-03-10 18:01:09,081 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 18:01:09,374 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 18:01:09,648 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 18:01:09,941 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 18:01:10,349 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 18:01:10,768 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 18:01:11,191 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 18:01:11,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:01:11,682 INFO L93 Difference]: Finished difference Result 19584 states and 50304 transitions. [2021-03-10 18:01:11,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 18:01:11,684 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 18:01:11,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:01:11,705 INFO L225 Difference]: With dead ends: 19584 [2021-03-10 18:01:11,705 INFO L226 Difference]: Without dead ends: 19584 [2021-03-10 18:01:11,706 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3006.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 18:01:11,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19584 states. [2021-03-10 18:01:11,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19584 to 5295. [2021-03-10 18:01:11,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5293 states have (on average 2.6597392782920837) internal successors, (14078), 5294 states have internal predecessors, (14078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:11,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 14078 transitions. [2021-03-10 18:01:11,843 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 14078 transitions. Word has length 108 [2021-03-10 18:01:11,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:01:11,843 INFO L480 AbstractCegarLoop]: Abstraction has 5295 states and 14078 transitions. [2021-03-10 18:01:11,844 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:11,844 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 14078 transitions. [2021-03-10 18:01:11,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 18:01:11,848 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:01:11,848 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:01:11,848 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2021-03-10 18:01:11,848 INFO L428 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]=== [2021-03-10 18:01:11,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:01:11,848 INFO L82 PathProgramCache]: Analyzing trace with hash 814401827, now seen corresponding path program 265 times [2021-03-10 18:01:11,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:01:11,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620048073] [2021-03-10 18:01:11,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:01:11,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:01:12,749 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 23 [2021-03-10 18:01:12,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:01:12,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620048073] [2021-03-10 18:01:12,760 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:01:12,760 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 18:01:12,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375811418] [2021-03-10 18:01:12,760 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 18:01:12,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:01:12,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 18:01:12,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 18:01:12,761 INFO L87 Difference]: Start difference. First operand 5295 states and 14078 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:13,585 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2021-03-10 18:01:13,777 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 18:01:14,060 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 18:01:14,333 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 18:01:14,693 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 18:01:15,027 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 18:01:15,390 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 18:01:15,784 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 18:01:16,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:01:16,225 INFO L93 Difference]: Finished difference Result 18431 states and 47502 transitions. [2021-03-10 18:01:16,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 18:01:16,227 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 18:01:16,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:01:16,245 INFO L225 Difference]: With dead ends: 18431 [2021-03-10 18:01:16,245 INFO L226 Difference]: Without dead ends: 18431 [2021-03-10 18:01:16,246 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3006.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 18:01:16,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18431 states. [2021-03-10 18:01:16,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18431 to 5321. [2021-03-10 18:01:16,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5321 states, 5319 states have (on average 2.661026508742245) internal successors, (14154), 5320 states have internal predecessors, (14154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:16,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5321 states to 5321 states and 14154 transitions. [2021-03-10 18:01:16,351 INFO L78 Accepts]: Start accepts. Automaton has 5321 states and 14154 transitions. Word has length 108 [2021-03-10 18:01:16,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:01:16,351 INFO L480 AbstractCegarLoop]: Abstraction has 5321 states and 14154 transitions. [2021-03-10 18:01:16,352 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:16,352 INFO L276 IsEmpty]: Start isEmpty. Operand 5321 states and 14154 transitions. [2021-03-10 18:01:16,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 18:01:16,356 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:01:16,356 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:01:16,356 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2021-03-10 18:01:16,356 INFO L428 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]=== [2021-03-10 18:01:16,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:01:16,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1542592673, now seen corresponding path program 266 times [2021-03-10 18:01:16,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:01:16,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916176921] [2021-03-10 18:01:16,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:01:16,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:01:17,190 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 23 [2021-03-10 18:01:17,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:01:17,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916176921] [2021-03-10 18:01:17,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:01:17,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 18:01:17,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361983522] [2021-03-10 18:01:17,200 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 18:01:17,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:01:17,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 18:01:17,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 18:01:17,201 INFO L87 Difference]: Start difference. First operand 5321 states and 14154 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:18,006 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2021-03-10 18:01:18,194 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 18:01:18,466 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 18:01:18,733 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 18:01:19,070 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 18:01:19,398 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 18:01:19,772 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 18:01:20,130 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 18:01:20,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:01:20,502 INFO L93 Difference]: Finished difference Result 19158 states and 49131 transitions. [2021-03-10 18:01:20,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 18:01:20,505 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 18:01:20,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:01:20,524 INFO L225 Difference]: With dead ends: 19158 [2021-03-10 18:01:20,524 INFO L226 Difference]: Without dead ends: 19158 [2021-03-10 18:01:20,524 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2956.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 18:01:20,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19158 states. [2021-03-10 18:01:20,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19158 to 5308. [2021-03-10 18:01:20,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5308 states, 5306 states have (on average 2.6603844704108557) internal successors, (14116), 5307 states have internal predecessors, (14116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:20,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5308 states to 5308 states and 14116 transitions. [2021-03-10 18:01:20,637 INFO L78 Accepts]: Start accepts. Automaton has 5308 states and 14116 transitions. Word has length 108 [2021-03-10 18:01:20,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:01:20,637 INFO L480 AbstractCegarLoop]: Abstraction has 5308 states and 14116 transitions. [2021-03-10 18:01:20,637 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:20,637 INFO L276 IsEmpty]: Start isEmpty. Operand 5308 states and 14116 transitions. [2021-03-10 18:01:20,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 18:01:20,640 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:01:20,640 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:01:20,641 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2021-03-10 18:01:20,641 INFO L428 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]=== [2021-03-10 18:01:20,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:01:20,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1539728187, now seen corresponding path program 267 times [2021-03-10 18:01:20,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:01:20,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148674249] [2021-03-10 18:01:20,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:01:20,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:01:21,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:01:21,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148674249] [2021-03-10 18:01:21,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:01:21,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 18:01:21,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289652505] [2021-03-10 18:01:21,490 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 18:01:21,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:01:21,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 18:01:21,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 18:01:21,490 INFO L87 Difference]: Start difference. First operand 5308 states and 14116 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:22,139 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 29 [2021-03-10 18:01:22,347 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2021-03-10 18:01:22,565 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 18:01:22,878 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 18:01:23,157 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 18:01:23,514 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-03-10 18:01:23,873 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 18:01:24,245 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 18:01:24,613 WARN L205 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 18:01:24,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:01:24,960 INFO L93 Difference]: Finished difference Result 18571 states and 47731 transitions. [2021-03-10 18:01:24,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 18:01:24,963 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 18:01:24,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:01:24,981 INFO L225 Difference]: With dead ends: 18571 [2021-03-10 18:01:24,981 INFO L226 Difference]: Without dead ends: 18571 [2021-03-10 18:01:24,981 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3098.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 18:01:25,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18571 states. [2021-03-10 18:01:25,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18571 to 5321. [2021-03-10 18:01:25,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5321 states, 5319 states have (on average 2.661026508742245) internal successors, (14154), 5320 states have internal predecessors, (14154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:25,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5321 states to 5321 states and 14154 transitions. [2021-03-10 18:01:25,090 INFO L78 Accepts]: Start accepts. Automaton has 5321 states and 14154 transitions. Word has length 108 [2021-03-10 18:01:25,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:01:25,091 INFO L480 AbstractCegarLoop]: Abstraction has 5321 states and 14154 transitions. [2021-03-10 18:01:25,091 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:25,091 INFO L276 IsEmpty]: Start isEmpty. Operand 5321 states and 14154 transitions. [2021-03-10 18:01:25,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 18:01:25,094 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:01:25,094 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:01:25,095 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2021-03-10 18:01:25,095 INFO L428 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]=== [2021-03-10 18:01:25,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:01:25,095 INFO L82 PathProgramCache]: Analyzing trace with hash 10570369, now seen corresponding path program 268 times [2021-03-10 18:01:25,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:01:25,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709994590] [2021-03-10 18:01:25,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:01:25,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:01:25,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:01:25,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709994590] [2021-03-10 18:01:25,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:01:25,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 18:01:25,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872278278] [2021-03-10 18:01:25,909 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 18:01:25,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:01:25,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 18:01:25,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 18:01:25,909 INFO L87 Difference]: Start difference. First operand 5321 states and 14154 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:26,755 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2021-03-10 18:01:26,953 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2021-03-10 18:01:27,241 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2021-03-10 18:01:27,524 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2021-03-10 18:01:27,903 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2021-03-10 18:01:28,266 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2021-03-10 18:01:28,649 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2021-03-10 18:01:29,041 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 66 [2021-03-10 18:01:29,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:01:29,402 INFO L93 Difference]: Finished difference Result 15786 states and 40739 transitions. [2021-03-10 18:01:29,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 18:01:29,404 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 18:01:29,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:01:29,420 INFO L225 Difference]: With dead ends: 15786 [2021-03-10 18:01:29,420 INFO L226 Difference]: Without dead ends: 15786 [2021-03-10 18:01:29,421 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2969.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 18:01:29,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15786 states. [2021-03-10 18:01:29,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15786 to 5230. [2021-03-10 18:01:29,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5230 states, 5228 states have (on average 2.6564651874521807) internal successors, (13888), 5229 states have internal predecessors, (13888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:29,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5230 states to 5230 states and 13888 transitions. [2021-03-10 18:01:29,516 INFO L78 Accepts]: Start accepts. Automaton has 5230 states and 13888 transitions. Word has length 108 [2021-03-10 18:01:29,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:01:29,516 INFO L480 AbstractCegarLoop]: Abstraction has 5230 states and 13888 transitions. [2021-03-10 18:01:29,516 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:29,517 INFO L276 IsEmpty]: Start isEmpty. Operand 5230 states and 13888 transitions. [2021-03-10 18:01:29,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 18:01:29,520 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:01:29,520 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:01:29,520 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2021-03-10 18:01:29,520 INFO L428 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]=== [2021-03-10 18:01:29,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:01:29,521 INFO L82 PathProgramCache]: Analyzing trace with hash 563326107, now seen corresponding path program 269 times [2021-03-10 18:01:29,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:01:29,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198508269] [2021-03-10 18:01:29,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:01:29,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:01:30,566 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 23 [2021-03-10 18:01:30,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:01:30,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198508269] [2021-03-10 18:01:30,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:01:30,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 18:01:30,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702279281] [2021-03-10 18:01:30,576 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 18:01:30,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:01:30,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 18:01:30,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 18:01:30,577 INFO L87 Difference]: Start difference. First operand 5230 states and 13888 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:31,474 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2021-03-10 18:01:31,720 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 18:01:31,959 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2021-03-10 18:01:32,239 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-03-10 18:01:32,543 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 18:01:32,878 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 18:01:33,351 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 18:01:33,745 WARN L205 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 18:01:34,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:01:34,139 INFO L93 Difference]: Finished difference Result 11554 states and 30299 transitions. [2021-03-10 18:01:34,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 18:01:34,141 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 18:01:34,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:01:34,152 INFO L225 Difference]: With dead ends: 11554 [2021-03-10 18:01:34,152 INFO L226 Difference]: Without dead ends: 11554 [2021-03-10 18:01:34,152 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3204.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 18:01:34,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11554 states. [2021-03-10 18:01:34,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11554 to 5256. [2021-03-10 18:01:34,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5256 states, 5254 states have (on average 2.657784545108489) internal successors, (13964), 5255 states have internal predecessors, (13964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:34,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5256 states to 5256 states and 13964 transitions. [2021-03-10 18:01:34,229 INFO L78 Accepts]: Start accepts. Automaton has 5256 states and 13964 transitions. Word has length 108 [2021-03-10 18:01:34,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:01:34,229 INFO L480 AbstractCegarLoop]: Abstraction has 5256 states and 13964 transitions. [2021-03-10 18:01:34,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:34,230 INFO L276 IsEmpty]: Start isEmpty. Operand 5256 states and 13964 transitions. [2021-03-10 18:01:34,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 18:01:34,233 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:01:34,233 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:01:34,233 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2021-03-10 18:01:34,233 INFO L428 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]=== [2021-03-10 18:01:34,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:01:34,234 INFO L82 PathProgramCache]: Analyzing trace with hash 975858391, now seen corresponding path program 270 times [2021-03-10 18:01:34,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:01:34,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107427057] [2021-03-10 18:01:34,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:01:34,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:01:35,241 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 23 [2021-03-10 18:01:35,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:01:35,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107427057] [2021-03-10 18:01:35,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:01:35,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 18:01:35,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615127846] [2021-03-10 18:01:35,251 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 18:01:35,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:01:35,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 18:01:35,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 18:01:35,251 INFO L87 Difference]: Start difference. First operand 5256 states and 13964 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:36,081 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2021-03-10 18:01:36,321 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 18:01:36,550 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2021-03-10 18:01:36,833 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-03-10 18:01:37,105 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 18:01:37,430 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 18:01:37,914 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 18:01:38,323 WARN L205 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 18:01:38,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:01:38,709 INFO L93 Difference]: Finished difference Result 14671 states and 38401 transitions. [2021-03-10 18:01:38,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 18:01:38,712 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 18:01:38,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:01:38,726 INFO L225 Difference]: With dead ends: 14671 [2021-03-10 18:01:38,726 INFO L226 Difference]: Without dead ends: 14671 [2021-03-10 18:01:38,726 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3139.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 18:01:38,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14671 states. [2021-03-10 18:01:38,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14671 to 5269. [2021-03-10 18:01:38,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5269 states, 5267 states have (on average 2.658439339282324) internal successors, (14002), 5268 states have internal predecessors, (14002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:38,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5269 states to 5269 states and 14002 transitions. [2021-03-10 18:01:38,821 INFO L78 Accepts]: Start accepts. Automaton has 5269 states and 14002 transitions. Word has length 108 [2021-03-10 18:01:38,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:01:38,822 INFO L480 AbstractCegarLoop]: Abstraction has 5269 states and 14002 transitions. [2021-03-10 18:01:38,822 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:38,822 INFO L276 IsEmpty]: Start isEmpty. Operand 5269 states and 14002 transitions. [2021-03-10 18:01:38,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 18:01:38,825 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:01:38,826 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:01:38,826 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2021-03-10 18:01:38,826 INFO L428 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]=== [2021-03-10 18:01:38,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:01:38,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1527590043, now seen corresponding path program 271 times [2021-03-10 18:01:38,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:01:38,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261728811] [2021-03-10 18:01:38,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:01:38,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:01:39,836 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 23 [2021-03-10 18:01:39,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:01:39,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261728811] [2021-03-10 18:01:39,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:01:39,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 18:01:39,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816165710] [2021-03-10 18:01:39,846 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 18:01:39,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:01:39,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 18:01:39,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 18:01:39,846 INFO L87 Difference]: Start difference. First operand 5269 states and 14002 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:40,716 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2021-03-10 18:01:40,988 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 18:01:41,229 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2021-03-10 18:01:41,534 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-03-10 18:01:41,841 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 18:01:42,184 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 18:01:42,684 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 18:01:43,098 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 18:01:43,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:01:43,514 INFO L93 Difference]: Finished difference Result 14425 states and 37693 transitions. [2021-03-10 18:01:43,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 18:01:43,516 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 18:01:43,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:01:43,532 INFO L225 Difference]: With dead ends: 14425 [2021-03-10 18:01:43,532 INFO L226 Difference]: Without dead ends: 14425 [2021-03-10 18:01:43,532 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3238.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 18:01:43,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14425 states. [2021-03-10 18:01:43,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14425 to 5295. [2021-03-10 18:01:43,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5293 states have (on average 2.6597392782920837) internal successors, (14078), 5294 states have internal predecessors, (14078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:43,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 14078 transitions. [2021-03-10 18:01:43,627 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 14078 transitions. Word has length 108 [2021-03-10 18:01:43,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:01:43,627 INFO L480 AbstractCegarLoop]: Abstraction has 5295 states and 14078 transitions. [2021-03-10 18:01:43,627 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:43,627 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 14078 transitions. [2021-03-10 18:01:43,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 18:01:43,631 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:01:43,631 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:01:43,631 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2021-03-10 18:01:43,631 INFO L428 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]=== [2021-03-10 18:01:43,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:01:43,631 INFO L82 PathProgramCache]: Analyzing trace with hash 418155675, now seen corresponding path program 272 times [2021-03-10 18:01:43,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:01:43,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99112203] [2021-03-10 18:01:43,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:01:43,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:01:44,616 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 23 [2021-03-10 18:01:44,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:01:44,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99112203] [2021-03-10 18:01:44,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:01:44,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 18:01:44,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893432194] [2021-03-10 18:01:44,626 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 18:01:44,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:01:44,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 18:01:44,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 18:01:44,627 INFO L87 Difference]: Start difference. First operand 5295 states and 14078 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:45,484 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2021-03-10 18:01:45,729 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 18:01:45,954 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2021-03-10 18:01:46,263 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-03-10 18:01:46,570 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 18:01:47,009 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 18:01:47,410 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 18:01:47,805 WARN L205 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 18:01:48,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:01:48,180 INFO L93 Difference]: Finished difference Result 14179 states and 36985 transitions. [2021-03-10 18:01:48,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 18:01:48,182 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 18:01:48,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:01:48,196 INFO L225 Difference]: With dead ends: 14179 [2021-03-10 18:01:48,196 INFO L226 Difference]: Without dead ends: 14179 [2021-03-10 18:01:48,196 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3211.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 18:01:48,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14179 states. [2021-03-10 18:01:48,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14179 to 5308. [2021-03-10 18:01:48,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5308 states, 5306 states have (on average 2.6603844704108557) internal successors, (14116), 5307 states have internal predecessors, (14116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:48,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5308 states to 5308 states and 14116 transitions. [2021-03-10 18:01:48,308 INFO L78 Accepts]: Start accepts. Automaton has 5308 states and 14116 transitions. Word has length 108 [2021-03-10 18:01:48,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:01:48,308 INFO L480 AbstractCegarLoop]: Abstraction has 5308 states and 14116 transitions. [2021-03-10 18:01:48,308 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:48,308 INFO L276 IsEmpty]: Start isEmpty. Operand 5308 states and 14116 transitions. [2021-03-10 18:01:48,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 18:01:48,311 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:01:48,312 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:01:48,312 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2021-03-10 18:01:48,312 INFO L428 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]=== [2021-03-10 18:01:48,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:01:48,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1938838825, now seen corresponding path program 273 times [2021-03-10 18:01:48,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:01:48,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274680686] [2021-03-10 18:01:48,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:01:48,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:01:49,365 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 23 [2021-03-10 18:01:49,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:01:49,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274680686] [2021-03-10 18:01:49,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:01:49,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 18:01:49,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398442846] [2021-03-10 18:01:49,376 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 18:01:49,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:01:49,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 18:01:49,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 18:01:49,377 INFO L87 Difference]: Start difference. First operand 5308 states and 14116 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:50,267 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2021-03-10 18:01:50,527 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 18:01:50,759 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2021-03-10 18:01:51,060 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-03-10 18:01:51,375 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 18:01:51,822 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 18:01:52,238 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-03-10 18:01:52,610 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-03-10 18:01:53,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:01:53,017 INFO L93 Difference]: Finished difference Result 12521 states and 32548 transitions. [2021-03-10 18:01:53,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 18:01:53,020 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 18:01:53,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:01:53,032 INFO L225 Difference]: With dead ends: 12521 [2021-03-10 18:01:53,032 INFO L226 Difference]: Without dead ends: 12521 [2021-03-10 18:01:53,032 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3262.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 18:01:53,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12521 states. [2021-03-10 18:01:53,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12521 to 5243. [2021-03-10 18:01:53,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5243 states, 5241 states have (on average 2.6571265025758444) internal successors, (13926), 5242 states have internal predecessors, (13926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:53,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5243 states to 5243 states and 13926 transitions. [2021-03-10 18:01:53,112 INFO L78 Accepts]: Start accepts. Automaton has 5243 states and 13926 transitions. Word has length 108 [2021-03-10 18:01:53,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:01:53,112 INFO L480 AbstractCegarLoop]: Abstraction has 5243 states and 13926 transitions. [2021-03-10 18:01:53,112 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:53,112 INFO L276 IsEmpty]: Start isEmpty. Operand 5243 states and 13926 transitions. [2021-03-10 18:01:53,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 18:01:53,116 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:01:53,116 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:01:53,116 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2021-03-10 18:01:53,116 INFO L428 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]=== [2021-03-10 18:01:53,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:01:53,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1363193899, now seen corresponding path program 274 times [2021-03-10 18:01:53,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:01:53,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387143956] [2021-03-10 18:01:53,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:01:53,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:01:54,114 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 23 [2021-03-10 18:01:54,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:01:54,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387143956] [2021-03-10 18:01:54,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:01:54,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 18:01:54,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972084113] [2021-03-10 18:01:54,125 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 18:01:54,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:01:54,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 18:01:54,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 18:01:54,126 INFO L87 Difference]: Start difference. First operand 5243 states and 13926 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:54,971 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2021-03-10 18:01:55,223 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 18:01:55,454 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 18:01:55,738 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-03-10 18:01:56,033 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 18:01:56,372 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 18:01:56,836 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 18:01:57,239 WARN L205 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-03-10 18:01:57,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:01:57,670 INFO L93 Difference]: Finished difference Result 14116 states and 36515 transitions. [2021-03-10 18:01:57,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 18:01:57,672 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-03-10 18:01:57,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:01:57,686 INFO L225 Difference]: With dead ends: 14116 [2021-03-10 18:01:57,686 INFO L226 Difference]: Without dead ends: 14116 [2021-03-10 18:01:57,686 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3190.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 18:01:57,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14116 states. [2021-03-10 18:01:57,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14116 to 5269. [2021-03-10 18:01:57,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5269 states, 5267 states have (on average 2.658439339282324) internal successors, (14002), 5268 states have internal predecessors, (14002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:57,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5269 states to 5269 states and 14002 transitions. [2021-03-10 18:01:57,776 INFO L78 Accepts]: Start accepts. Automaton has 5269 states and 14002 transitions. Word has length 108 [2021-03-10 18:01:57,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:01:57,776 INFO L480 AbstractCegarLoop]: Abstraction has 5269 states and 14002 transitions. [2021-03-10 18:01:57,776 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:57,776 INFO L276 IsEmpty]: Start isEmpty. Operand 5269 states and 14002 transitions. [2021-03-10 18:01:57,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-03-10 18:01:57,780 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:01:57,780 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:01:57,780 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2021-03-10 18:01:57,780 INFO L428 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]=== [2021-03-10 18:01:57,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:01:57,780 INFO L82 PathProgramCache]: Analyzing trace with hash 1914925551, now seen corresponding path program 275 times [2021-03-10 18:01:57,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:01:57,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218648842] [2021-03-10 18:01:57,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:01:57,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:01:58,754 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 23 [2021-03-10 18:01:58,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:01:58,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218648842] [2021-03-10 18:01:58,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:01:58,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 18:01:58,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629531477] [2021-03-10 18:01:58,764 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 18:01:58,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:01:58,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 18:01:58,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-03-10 18:01:58,765 INFO L87 Difference]: Start difference. First operand 5269 states and 14002 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:59,673 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2021-03-10 18:01:59,951 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-10 18:02:00,211 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-10 18:02:00,538 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-03-10 18:02:00,868 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-03-10 18:02:01,231 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-03-10 18:02:01,772 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-03-10 18:02:02,205 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 Received shutdown request... [2021-03-10 18:02:02,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 18:02:02,577 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2021-03-10 18:02:02,577 WARN L545 AbstractCegarLoop]: Verification canceled [2021-03-10 18:02:02,581 WARN L224 ceAbstractionStarter]: Timeout [2021-03-10 18:02:02,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.03 06:02:02 BasicIcfg [2021-03-10 18:02:02,582 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-10 18:02:02,582 INFO L168 Benchmark]: Toolchain (without parser) took 749766.01 ms. Allocated memory was 341.8 MB in the beginning and 1.6 GB in the end (delta: 1.3 GB). Free memory was 303.5 MB in the beginning and 1.3 GB in the end (delta: -952.9 MB). Peak memory consumption was 355.0 MB. Max. memory is 16.0 GB. [2021-03-10 18:02:02,582 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 341.8 MB. Free memory is still 323.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 18:02:02,582 INFO L168 Benchmark]: CACSL2BoogieTranslator took 858.24 ms. Allocated memory is still 341.8 MB. Free memory was 302.8 MB in the beginning and 287.3 MB in the end (delta: 15.5 MB). Peak memory consumption was 85.4 MB. Max. memory is 16.0 GB. [2021-03-10 18:02:02,583 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.99 ms. Allocated memory is still 341.8 MB. Free memory was 287.3 MB in the beginning and 284.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-03-10 18:02:02,583 INFO L168 Benchmark]: Boogie Preprocessor took 27.75 ms. Allocated memory is still 341.8 MB. Free memory was 284.2 MB in the beginning and 281.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 18:02:02,583 INFO L168 Benchmark]: RCFGBuilder took 628.66 ms. Allocated memory is still 341.8 MB. Free memory was 281.0 MB in the beginning and 233.8 MB in the end (delta: 47.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.0 GB. [2021-03-10 18:02:02,583 INFO L168 Benchmark]: TraceAbstraction took 748165.06 ms. Allocated memory was 341.8 MB in the beginning and 1.6 GB in the end (delta: 1.3 GB). Free memory was 232.8 MB in the beginning and 1.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 282.9 MB. Max. memory is 16.0 GB. [2021-03-10 18:02:02,583 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 341.8 MB. Free memory is still 323.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 858.24 ms. Allocated memory is still 341.8 MB. Free memory was 302.8 MB in the beginning and 287.3 MB in the end (delta: 15.5 MB). Peak memory consumption was 85.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 77.99 ms. Allocated memory is still 341.8 MB. Free memory was 287.3 MB in the beginning and 284.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 27.75 ms. Allocated memory is still 341.8 MB. Free memory was 284.2 MB in the beginning and 281.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 628.66 ms. Allocated memory is still 341.8 MB. Free memory was 281.0 MB in the beginning and 233.8 MB in the end (delta: 47.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 748165.06 ms. Allocated memory was 341.8 MB in the beginning and 1.6 GB in the end (delta: 1.3 GB). Free memory was 232.8 MB in the beginning and 1.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 282.9 MB. Max. memory is 16.0 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 (line 1693). Cancelled while BasicCegarLoop was constructing difference of abstraction (5269states) and FLOYD_HOARE automaton (currently 17 states, 18 states before enhancement),while ReachableStatesComputation was computing reachable states (16838 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable (line 1693). Cancelled while BasicCegarLoop was constructing difference of abstraction (5269states) and FLOYD_HOARE automaton (currently 17 states, 18 states before enhancement),while ReachableStatesComputation was computing reachable states (16838 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable (line 1693). Cancelled while BasicCegarLoop was constructing difference of abstraction (5269states) and FLOYD_HOARE automaton (currently 17 states, 18 states before enhancement),while ReachableStatesComputation was computing reachable states (16838 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable (line 1693). Cancelled while BasicCegarLoop was constructing difference of abstraction (5269states) and FLOYD_HOARE automaton (currently 17 states, 18 states before enhancement),while ReachableStatesComputation was computing reachable states (16838 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable (line 1693). Cancelled while BasicCegarLoop was constructing difference of abstraction (5269states) and FLOYD_HOARE automaton (currently 17 states, 18 states before enhancement),while ReachableStatesComputation was computing reachable states (16838 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable (line 1693). Cancelled while BasicCegarLoop was constructing difference of abstraction (5269states) and FLOYD_HOARE automaton (currently 17 states, 18 states before enhancement),while ReachableStatesComputation was computing reachable states (16838 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 140 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 748056.9ms, OverallIterations: 281, TraceHistogramMax: 1, EmptinessCheckTime: 1182.6ms, AutomataDifference: 572779.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 343.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 105473 SDtfs, 320180 SDslu, 566050 SDs, 0 SdLazy, 148199 SolverSat, 1650 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 82752.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9938 GetRequests, 1121 SyntacticMatches, 466 SemanticMatches, 8351 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15404 ImplicationChecksByTransitivity, 515151.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9085occurred in iteration=0, InterpolantAutomatonStates: 4767, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 28924.3ms AutomataMinimizationTime, 280 MinimizatonAttempts, 2632257 StatesRemovedByMinimization, 279 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 426.4ms SsaConstructionTime, 2549.3ms SatisfiabilityAnalysisTime, 139794.7ms InterpolantComputationTime, 30086 NumberOfCodeBlocks, 30086 NumberOfCodeBlocksAsserted, 281 NumberOfCheckSat, 29805 ConstructedInterpolants, 0 QuantifiedInterpolants, 239801 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 281 InterpolantComputations, 281 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