/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-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 10:28:51,295 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 10:28:51,297 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 10:28:51,338 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 10:28:51,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 10:28:51,392 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 10:28:51,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 10:28:51,400 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-Separate.epf [2021-06-05 10:28:51,430 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 10:28:51,430 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 10:28:51,431 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 10:28:51,431 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 10:28:51,432 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 10:28:51,432 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 10:28:51,432 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 10:28:51,432 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 10:28:51,432 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 10:28:51,432 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 10:28:51,433 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 10:28:51,433 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 10:28:51,433 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 10:28:51,433 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 10:28:51,433 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 10:28:51,433 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 10:28:51,433 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 10:28:51,433 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 10:28:51,434 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 10:28:51,434 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 10:28:51,434 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 10:28:51,434 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 10:28:51,434 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 10:28:51,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 10:28:51,434 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 10:28:51,435 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 10:28:51,435 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 10:28:51,435 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 10:28:51,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 10:28:51,435 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 10:28:51,435 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 10:28:51,435 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 10:28:51,435 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 10:28:51,731 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 10:28:51,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 10:28:51,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 10:28:51,751 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 10:28:51,751 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 10:28:51,752 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2021-06-05 10:28:51,806 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/580c3ed47/73d28628da3d49508a1a09deee0b74c8/FLAG72011f4de [2021-06-05 10:28:52,444 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 10:28:52,445 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2021-06-05 10:28:52,469 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/580c3ed47/73d28628da3d49508a1a09deee0b74c8/FLAG72011f4de [2021-06-05 10:28:52,667 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/580c3ed47/73d28628da3d49508a1a09deee0b74c8 [2021-06-05 10:28:52,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 10:28:52,671 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 10:28:52,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 10:28:52,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 10:28:52,676 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 10:28:52,677 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:28:52" (1/1) ... [2021-06-05 10:28:52,678 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4406d157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:28:52, skipping insertion in model container [2021-06-05 10:28:52,678 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:28:52" (1/1) ... [2021-06-05 10:28:52,683 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 10:28:52,750 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 10:28:52,848 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-05 10:28:53,274 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i[75002,75015] [2021-06-05 10:28:53,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:28:53,301 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 10:28:53,309 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-05 10:28:53,333 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i[75002,75015] [2021-06-05 10:28:53,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:28:53,621 INFO L208 MainTranslator]: Completed translation [2021-06-05 10:28:53,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:28:53 WrapperNode [2021-06-05 10:28:53,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 10:28:53,622 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 10:28:53,622 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 10:28:53,622 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 10:28:53,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:28:53" (1/1) ... [2021-06-05 10:28:53,654 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:28:53" (1/1) ... [2021-06-05 10:28:53,676 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 10:28:53,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 10:28:53,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 10:28:53,677 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 10:28:53,683 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:28:53" (1/1) ... [2021-06-05 10:28:53,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:28:53" (1/1) ... [2021-06-05 10:28:53,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:28:53" (1/1) ... [2021-06-05 10:28:53,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:28:53" (1/1) ... [2021-06-05 10:28:53,697 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:28:53" (1/1) ... [2021-06-05 10:28:53,699 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:28:53" (1/1) ... [2021-06-05 10:28:53,703 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:28:53" (1/1) ... [2021-06-05 10:28:53,709 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 10:28:53,710 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 10:28:53,710 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 10:28:53,710 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 10:28:53,710 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:28:53" (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 [2021-06-05 10:28:53,792 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 10:28:53,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 10:28:53,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 10:28:53,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-05 10:28:53,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-06-05 10:28:53,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 10:28:53,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 10:28:53,795 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-06-05 10:28:53,795 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-06-05 10:28:53,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 10:28:53,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 10:28:53,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 10:28:53,797 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 10:28:54,292 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 10:28:54,292 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2021-06-05 10:28:54,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:28:54 BoogieIcfgContainer [2021-06-05 10:28:54,294 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 10:28:54,295 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 10:28:54,296 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 10:28:54,298 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 10:28:54,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 10:28:52" (1/3) ... [2021-06-05 10:28:54,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fd4c78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:28:54, skipping insertion in model container [2021-06-05 10:28:54,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:28:53" (2/3) ... [2021-06-05 10:28:54,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fd4c78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:28:54, skipping insertion in model container [2021-06-05 10:28:54,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:28:54" (3/3) ... [2021-06-05 10:28:54,300 INFO L111 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2021-06-05 10:28:54,305 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 10:28:54,305 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 10:28:54,306 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-06-05 10:28:54,306 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 10:28:54,331 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,332 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,332 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,332 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,332 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,332 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,333 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,333 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,333 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,333 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,333 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,333 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,333 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,333 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,334 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,334 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,334 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,334 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,334 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,334 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,334 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,334 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,335 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,335 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,335 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,335 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,335 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,335 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,335 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,336 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,336 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,336 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,336 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,336 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,336 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,336 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,336 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,337 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,337 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,337 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,337 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,337 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,337 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,337 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,338 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,338 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,338 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,338 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,338 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,338 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,338 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,338 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,339 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,339 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,339 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,339 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,339 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,339 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,339 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,340 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,340 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,340 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,340 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,340 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,340 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,340 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,340 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,340 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,340 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,341 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,341 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,341 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,341 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,341 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,341 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,341 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,341 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,341 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,342 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,342 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,342 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,342 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,342 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,342 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,342 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,342 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,342 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,343 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,343 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,343 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,343 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,343 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,343 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,343 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,343 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,343 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,344 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,344 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,344 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,344 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,344 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,344 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,345 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,345 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,345 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,345 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,345 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,345 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,345 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,345 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,346 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,346 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,346 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,346 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,346 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,346 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,348 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,348 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,348 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,348 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,348 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,349 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,349 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,349 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,349 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,349 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,349 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,349 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,351 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,351 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,352 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,352 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,352 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,352 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,352 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,352 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,352 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,353 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,353 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,353 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:54,362 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-05 10:28:54,385 INFO L255 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-06-05 10:28:54,402 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 10:28:54,402 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 10:28:54,402 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 10:28:54,402 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 10:28:54,402 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 10:28:54,402 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 10:28:54,403 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 10:28:54,403 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 10:28:54,414 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 141 places, 143 transitions, 308 flow [2021-06-05 10:28:54,653 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5115 states, 5106 states have (on average 2.781629455542499) internal successors, (14203), 5114 states have internal predecessors, (14203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:28:54,673 INFO L276 IsEmpty]: Start isEmpty. Operand has 5115 states, 5106 states have (on average 2.781629455542499) internal successors, (14203), 5114 states have internal predecessors, (14203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:28:54,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-06-05 10:28:54,694 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:28:54,695 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:28:54,696 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:28:54,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:28:54,705 INFO L82 PathProgramCache]: Analyzing trace with hash 918719424, now seen corresponding path program 1 times [2021-06-05 10:28:54,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:28:54,713 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450504600] [2021-06-05 10:28:54,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:28:54,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:28:55,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:28:55,172 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:28:55,172 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450504600] [2021-06-05 10:28:55,173 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450504600] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:28:55,174 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:28:55,174 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:28:55,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15257039] [2021-06-05 10:28:55,178 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:28:55,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:28:55,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:28:55,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:28:55,211 INFO L87 Difference]: Start difference. First operand has 5115 states, 5106 states have (on average 2.781629455542499) internal successors, (14203), 5114 states have internal predecessors, (14203), 0 states have call successors, (0), 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 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:28:55,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:28:55,655 INFO L93 Difference]: Finished difference Result 6844 states and 18653 transitions. [2021-06-05 10:28:55,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-05 10:28:55,657 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-06-05 10:28:55,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:28:55,694 INFO L225 Difference]: With dead ends: 6844 [2021-06-05 10:28:55,695 INFO L226 Difference]: Without dead ends: 5725 [2021-06-05 10:28:55,696 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 112.1ms TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:28:55,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5725 states. [2021-06-05 10:28:55,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5725 to 4445. [2021-06-05 10:28:55,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4445 states, 4440 states have (on average 2.713963963963964) internal successors, (12050), 4444 states have internal predecessors, (12050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:28:55,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4445 states to 4445 states and 12050 transitions. [2021-06-05 10:28:55,916 INFO L78 Accepts]: Start accepts. Automaton has 4445 states and 12050 transitions. Word has length 48 [2021-06-05 10:28:55,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:28:55,916 INFO L482 AbstractCegarLoop]: Abstraction has 4445 states and 12050 transitions. [2021-06-05 10:28:55,917 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:28:55,917 INFO L276 IsEmpty]: Start isEmpty. Operand 4445 states and 12050 transitions. [2021-06-05 10:28:55,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-06-05 10:28:55,919 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:28:55,920 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:28:55,920 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 10:28:55,920 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:28:55,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:28:55,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1316640901, now seen corresponding path program 1 times [2021-06-05 10:28:55,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:28:55,921 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049291289] [2021-06-05 10:28:55,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:28:55,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:28:56,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:28:56,007 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:28:56,007 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049291289] [2021-06-05 10:28:56,007 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049291289] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:28:56,008 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:28:56,008 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:28:56,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897893873] [2021-06-05 10:28:56,009 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:28:56,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:28:56,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:28:56,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:28:56,010 INFO L87 Difference]: Start difference. First operand 4445 states and 12050 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:28:56,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:28:56,275 INFO L93 Difference]: Finished difference Result 6161 states and 16560 transitions. [2021-06-05 10:28:56,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 10:28:56,276 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-06-05 10:28:56,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:28:56,307 INFO L225 Difference]: With dead ends: 6161 [2021-06-05 10:28:56,307 INFO L226 Difference]: Without dead ends: 5231 [2021-06-05 10:28:56,309 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 73.4ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-06-05 10:28:56,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5231 states. [2021-06-05 10:28:56,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5231 to 5061. [2021-06-05 10:28:56,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5061 states, 5057 states have (on average 2.716630413288511) internal successors, (13738), 5060 states have internal predecessors, (13738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:28:56,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5061 states to 5061 states and 13738 transitions. [2021-06-05 10:28:56,506 INFO L78 Accepts]: Start accepts. Automaton has 5061 states and 13738 transitions. Word has length 54 [2021-06-05 10:28:56,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:28:56,507 INFO L482 AbstractCegarLoop]: Abstraction has 5061 states and 13738 transitions. [2021-06-05 10:28:56,507 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:28:56,507 INFO L276 IsEmpty]: Start isEmpty. Operand 5061 states and 13738 transitions. [2021-06-05 10:28:56,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-05 10:28:56,513 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:28:56,514 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:28:56,514 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 10:28:56,514 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:28:56,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:28:56,514 INFO L82 PathProgramCache]: Analyzing trace with hash 612799479, now seen corresponding path program 1 times [2021-06-05 10:28:56,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:28:56,515 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431190422] [2021-06-05 10:28:56,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:28:56,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:28:56,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:28:56,583 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:28:56,583 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431190422] [2021-06-05 10:28:56,584 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431190422] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:28:56,584 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:28:56,584 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 10:28:56,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924879983] [2021-06-05 10:28:56,584 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 10:28:56,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:28:56,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 10:28:56,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 10:28:56,585 INFO L87 Difference]: Start difference. First operand 5061 states and 13738 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 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) [2021-06-05 10:28:56,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:28:56,620 INFO L93 Difference]: Finished difference Result 1928 states and 5048 transitions. [2021-06-05 10:28:56,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 10:28:56,620 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 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 [2021-06-05 10:28:56,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:28:56,628 INFO L225 Difference]: With dead ends: 1928 [2021-06-05 10:28:56,628 INFO L226 Difference]: Without dead ends: 1928 [2021-06-05 10:28:56,628 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 23.1ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-05 10:28:56,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1928 states. [2021-06-05 10:28:56,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1928 to 1928. [2021-06-05 10:28:56,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1928 states, 1926 states have (on average 2.6209761163032192) internal successors, (5048), 1927 states have internal predecessors, (5048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:28:56,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1928 states to 1928 states and 5048 transitions. [2021-06-05 10:28:56,671 INFO L78 Accepts]: Start accepts. Automaton has 1928 states and 5048 transitions. Word has length 66 [2021-06-05 10:28:56,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:28:56,672 INFO L482 AbstractCegarLoop]: Abstraction has 1928 states and 5048 transitions. [2021-06-05 10:28:56,672 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 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) [2021-06-05 10:28:56,672 INFO L276 IsEmpty]: Start isEmpty. Operand 1928 states and 5048 transitions. [2021-06-05 10:28:56,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:28:56,676 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:28:56,677 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:28:56,677 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 10:28:56,677 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:28:56,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:28:56,677 INFO L82 PathProgramCache]: Analyzing trace with hash -240776193, now seen corresponding path program 1 times [2021-06-05 10:28:56,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:28:56,678 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921026771] [2021-06-05 10:28:56,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:28:56,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:28:57,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:28:57,448 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:28:57,448 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921026771] [2021-06-05 10:28:57,448 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921026771] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:28:57,448 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:28:57,448 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 10:28:57,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494193075] [2021-06-05 10:28:57,449 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 10:28:57,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:28:57,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 10:28:57,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2021-06-05 10:28:57,450 INFO L87 Difference]: Start difference. First operand 1928 states and 5048 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:28:59,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:28:59,312 INFO L93 Difference]: Finished difference Result 1975 states and 5135 transitions. [2021-06-05 10:28:59,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-05 10:28:59,313 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:28:59,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:28:59,321 INFO L225 Difference]: With dead ends: 1975 [2021-06-05 10:28:59,321 INFO L226 Difference]: Without dead ends: 1975 [2021-06-05 10:28:59,322 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 1476.2ms TimeCoverageRelationStatistics Valid=534, Invalid=1536, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 10:28:59,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2021-06-05 10:28:59,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1953. [2021-06-05 10:28:59,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1953 states, 1951 states have (on average 2.610456176319836) internal successors, (5093), 1952 states have internal predecessors, (5093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:28:59,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1953 states to 1953 states and 5093 transitions. [2021-06-05 10:28:59,384 INFO L78 Accepts]: Start accepts. Automaton has 1953 states and 5093 transitions. Word has length 94 [2021-06-05 10:28:59,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:28:59,384 INFO L482 AbstractCegarLoop]: Abstraction has 1953 states and 5093 transitions. [2021-06-05 10:28:59,384 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:28:59,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1953 states and 5093 transitions. [2021-06-05 10:28:59,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:28:59,388 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:28:59,388 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:28:59,388 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 10:28:59,389 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:28:59,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:28:59,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1458799697, now seen corresponding path program 1 times [2021-06-05 10:28:59,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:28:59,389 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885275104] [2021-06-05 10:28:59,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:28:59,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:28:59,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:28:59,920 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:28:59,920 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885275104] [2021-06-05 10:28:59,920 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885275104] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:28:59,920 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:28:59,920 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 10:28:59,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404566] [2021-06-05 10:28:59,921 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 10:28:59,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:28:59,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 10:28:59,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-06-05 10:28:59,921 INFO L87 Difference]: Start difference. First operand 1953 states and 5093 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:01,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:29:01,350 INFO L93 Difference]: Finished difference Result 3181 states and 8005 transitions. [2021-06-05 10:29:01,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 10:29:01,350 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:29:01,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:29:01,363 INFO L225 Difference]: With dead ends: 3181 [2021-06-05 10:29:01,363 INFO L226 Difference]: Without dead ends: 3181 [2021-06-05 10:29:01,364 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1192.2ms TimeCoverageRelationStatistics Valid=340, Invalid=850, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 10:29:01,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3181 states. [2021-06-05 10:29:01,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3181 to 2250. [2021-06-05 10:29:01,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2250 states, 2248 states have (on average 2.5604982206405693) internal successors, (5756), 2249 states have internal predecessors, (5756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:01,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2250 states to 2250 states and 5756 transitions. [2021-06-05 10:29:01,425 INFO L78 Accepts]: Start accepts. Automaton has 2250 states and 5756 transitions. Word has length 94 [2021-06-05 10:29:01,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:29:01,425 INFO L482 AbstractCegarLoop]: Abstraction has 2250 states and 5756 transitions. [2021-06-05 10:29:01,425 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:01,425 INFO L276 IsEmpty]: Start isEmpty. Operand 2250 states and 5756 transitions. [2021-06-05 10:29:01,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:29:01,430 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:29:01,430 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:29:01,430 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 10:29:01,430 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:29:01,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:29:01,431 INFO L82 PathProgramCache]: Analyzing trace with hash 608810679, now seen corresponding path program 2 times [2021-06-05 10:29:01,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:29:01,431 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772786194] [2021-06-05 10:29:01,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:29:01,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:29:02,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:29:02,410 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:29:02,410 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772786194] [2021-06-05 10:29:02,410 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772786194] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:29:02,410 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:29:02,410 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:29:02,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999586722] [2021-06-05 10:29:02,411 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:29:02,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:29:02,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:29:02,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:29:02,411 INFO L87 Difference]: Start difference. First operand 2250 states and 5756 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:03,598 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:29:03,748 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 10:29:03,919 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:29:04,072 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 10:29:04,303 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:29:04,513 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 10:29:04,758 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 10:29:04,943 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 10:29:05,193 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 10:29:05,569 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:29:05,882 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:29:06,090 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:29:06,375 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 10:29:06,576 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:29:06,813 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 10:29:07,288 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 10:29:07,643 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2021-06-05 10:29:07,772 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 10:29:08,009 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2021-06-05 10:29:08,149 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:29:08,344 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 10:29:08,568 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2021-06-05 10:29:08,704 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2021-06-05 10:29:08,920 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 10:29:09,044 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-06-05 10:29:09,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:29:09,049 INFO L93 Difference]: Finished difference Result 5114 states and 12603 transitions. [2021-06-05 10:29:09,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-06-05 10:29:09,050 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:29:09,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:29:09,059 INFO L225 Difference]: With dead ends: 5114 [2021-06-05 10:29:09,059 INFO L226 Difference]: Without dead ends: 5114 [2021-06-05 10:29:09,060 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 5981.2ms TimeCoverageRelationStatistics Valid=1020, Invalid=2640, Unknown=0, NotChecked=0, Total=3660 [2021-06-05 10:29:09,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5114 states. [2021-06-05 10:29:09,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5114 to 2972. [2021-06-05 10:29:09,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2972 states, 2970 states have (on average 2.594612794612795) internal successors, (7706), 2971 states have internal predecessors, (7706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:09,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2972 states to 2972 states and 7706 transitions. [2021-06-05 10:29:09,131 INFO L78 Accepts]: Start accepts. Automaton has 2972 states and 7706 transitions. Word has length 94 [2021-06-05 10:29:09,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:29:09,131 INFO L482 AbstractCegarLoop]: Abstraction has 2972 states and 7706 transitions. [2021-06-05 10:29:09,132 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:09,132 INFO L276 IsEmpty]: Start isEmpty. Operand 2972 states and 7706 transitions. [2021-06-05 10:29:09,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:29:09,137 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:29:09,138 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:29:09,138 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 10:29:09,138 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:29:09,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:29:09,138 INFO L82 PathProgramCache]: Analyzing trace with hash -1809812065, now seen corresponding path program 3 times [2021-06-05 10:29:09,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:29:09,139 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557551993] [2021-06-05 10:29:09,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:29:09,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:29:09,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:29:09,973 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:29:09,973 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557551993] [2021-06-05 10:29:09,973 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557551993] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:29:09,973 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:29:09,973 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:29:09,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863831560] [2021-06-05 10:29:09,974 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:29:09,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:29:09,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:29:09,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:29:09,975 INFO L87 Difference]: Start difference. First operand 2972 states and 7706 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:10,903 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-06-05 10:29:11,111 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:29:11,252 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 10:29:11,448 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:29:11,612 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 10:29:11,829 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:29:12,057 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 10:29:12,302 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 10:29:12,689 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:29:12,838 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-06-05 10:29:13,026 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:29:13,232 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:29:13,452 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:29:13,678 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:29:13,874 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:29:14,121 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:29:14,589 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-06-05 10:29:14,730 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-06-05 10:29:14,927 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-06-05 10:29:15,071 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 10:29:15,275 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-06-05 10:29:15,411 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:29:15,673 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:29:15,885 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 10:29:16,010 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2021-06-05 10:29:16,214 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:29:16,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:29:16,347 INFO L93 Difference]: Finished difference Result 5535 states and 13421 transitions. [2021-06-05 10:29:16,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-05 10:29:16,347 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:29:16,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:29:16,356 INFO L225 Difference]: With dead ends: 5535 [2021-06-05 10:29:16,356 INFO L226 Difference]: Without dead ends: 5535 [2021-06-05 10:29:16,357 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 5741.4ms TimeCoverageRelationStatistics Valid=968, Invalid=2572, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 10:29:16,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5535 states. [2021-06-05 10:29:16,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5535 to 2979. [2021-06-05 10:29:16,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2979 states, 2977 states have (on average 2.5935505542492443) internal successors, (7721), 2978 states have internal predecessors, (7721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:16,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2979 states to 2979 states and 7721 transitions. [2021-06-05 10:29:16,427 INFO L78 Accepts]: Start accepts. Automaton has 2979 states and 7721 transitions. Word has length 94 [2021-06-05 10:29:16,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:29:16,427 INFO L482 AbstractCegarLoop]: Abstraction has 2979 states and 7721 transitions. [2021-06-05 10:29:16,427 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:16,427 INFO L276 IsEmpty]: Start isEmpty. Operand 2979 states and 7721 transitions. [2021-06-05 10:29:16,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:29:16,433 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:29:16,433 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:29:16,433 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 10:29:16,433 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:29:16,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:29:16,434 INFO L82 PathProgramCache]: Analyzing trace with hash -184622153, now seen corresponding path program 4 times [2021-06-05 10:29:16,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:29:16,434 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416806833] [2021-06-05 10:29:16,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:29:16,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:29:17,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:29:17,130 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:29:17,130 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416806833] [2021-06-05 10:29:17,130 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416806833] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:29:17,130 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:29:17,130 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:29:17,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236083053] [2021-06-05 10:29:17,130 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:29:17,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:29:17,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:29:17,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:29:17,131 INFO L87 Difference]: Start difference. First operand 2979 states and 7721 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:18,195 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:29:18,330 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 10:29:18,507 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:29:18,656 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 10:29:18,851 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:29:19,312 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:29:19,443 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-06-05 10:29:19,603 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:29:19,760 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:29:19,963 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:29:20,172 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:29:20,390 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:29:20,583 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:29:20,895 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:29:21,363 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 10:29:21,500 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-06-05 10:29:21,675 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 10:29:21,802 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 10:29:21,985 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 10:29:22,118 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:29:22,278 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:29:22,474 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-06-05 10:29:22,614 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2021-06-05 10:29:22,836 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:29:22,961 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-06-05 10:29:22,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:29:22,974 INFO L93 Difference]: Finished difference Result 5646 states and 13664 transitions. [2021-06-05 10:29:22,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-06-05 10:29:22,974 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:29:22,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:29:22,983 INFO L225 Difference]: With dead ends: 5646 [2021-06-05 10:29:22,983 INFO L226 Difference]: Without dead ends: 5646 [2021-06-05 10:29:22,984 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 425 ImplicationChecksByTransitivity, 5129.4ms TimeCoverageRelationStatistics Valid=918, Invalid=2504, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 10:29:22,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5646 states. [2021-06-05 10:29:23,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5646 to 2993. [2021-06-05 10:29:23,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2993 states, 2991 states have (on average 2.5914409896355735) internal successors, (7751), 2992 states have internal predecessors, (7751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:23,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2993 states to 2993 states and 7751 transitions. [2021-06-05 10:29:23,056 INFO L78 Accepts]: Start accepts. Automaton has 2993 states and 7751 transitions. Word has length 94 [2021-06-05 10:29:23,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:29:23,056 INFO L482 AbstractCegarLoop]: Abstraction has 2993 states and 7751 transitions. [2021-06-05 10:29:23,057 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:23,057 INFO L276 IsEmpty]: Start isEmpty. Operand 2993 states and 7751 transitions. [2021-06-05 10:29:23,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:29:23,062 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:29:23,062 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:29:23,063 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 10:29:23,063 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:29:23,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:29:23,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1732609481, now seen corresponding path program 5 times [2021-06-05 10:29:23,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:29:23,063 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151380543] [2021-06-05 10:29:23,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:29:23,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:29:23,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:29:23,891 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:29:23,892 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151380543] [2021-06-05 10:29:23,892 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151380543] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:29:23,892 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:29:23,892 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:29:23,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991328156] [2021-06-05 10:29:23,892 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:29:23,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:29:23,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:29:23,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:29:23,893 INFO L87 Difference]: Start difference. First operand 2993 states and 7751 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:24,739 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-06-05 10:29:24,895 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:29:25,029 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 10:29:25,199 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 10:29:25,611 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:29:25,751 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:29:26,028 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:29:26,184 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:29:26,391 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:29:26,593 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:29:26,818 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:29:27,008 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:29:27,241 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:29:27,619 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 10:29:27,898 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 10:29:28,049 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 10:29:28,213 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-06-05 10:29:28,344 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:29:28,507 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:29:28,668 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-06-05 10:29:28,842 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2021-06-05 10:29:29,060 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:29:29,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:29:29,187 INFO L93 Difference]: Finished difference Result 5757 states and 13907 transitions. [2021-06-05 10:29:29,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 10:29:29,187 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:29:29,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:29:29,195 INFO L225 Difference]: With dead ends: 5757 [2021-06-05 10:29:29,195 INFO L226 Difference]: Without dead ends: 5757 [2021-06-05 10:29:29,196 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 4975.2ms TimeCoverageRelationStatistics Valid=870, Invalid=2436, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 10:29:29,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5757 states. [2021-06-05 10:29:29,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5757 to 3000. [2021-06-05 10:29:29,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3000 states, 2998 states have (on average 2.590393595730487) internal successors, (7766), 2999 states have internal predecessors, (7766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:29,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3000 states to 3000 states and 7766 transitions. [2021-06-05 10:29:29,262 INFO L78 Accepts]: Start accepts. Automaton has 3000 states and 7766 transitions. Word has length 94 [2021-06-05 10:29:29,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:29:29,262 INFO L482 AbstractCegarLoop]: Abstraction has 3000 states and 7766 transitions. [2021-06-05 10:29:29,262 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:29,262 INFO L276 IsEmpty]: Start isEmpty. Operand 3000 states and 7766 transitions. [2021-06-05 10:29:29,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:29:29,268 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:29:29,268 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:29:29,268 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 10:29:29,269 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:29:29,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:29:29,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1417459553, now seen corresponding path program 6 times [2021-06-05 10:29:29,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:29:29,269 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775939911] [2021-06-05 10:29:29,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:29:29,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:29:30,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:29:30,059 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:29:30,059 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775939911] [2021-06-05 10:29:30,059 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775939911] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:29:30,059 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:29:30,059 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:29:30,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286721704] [2021-06-05 10:29:30,059 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:29:30,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:29:30,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:29:30,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:29:30,060 INFO L87 Difference]: Start difference. First operand 3000 states and 7766 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:31,119 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 10:29:31,476 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-06-05 10:29:31,621 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:29:31,790 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:29:32,072 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:29:32,250 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:29:32,450 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:29:32,650 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:29:32,864 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:29:33,054 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:29:33,287 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:29:33,644 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 10:29:33,905 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 10:29:34,030 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 10:29:34,180 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-06-05 10:29:34,311 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:29:34,441 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-06-05 10:29:34,628 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2021-06-05 10:29:34,797 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2021-06-05 10:29:34,949 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:29:35,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:29:35,077 INFO L93 Difference]: Finished difference Result 5383 states and 13144 transitions. [2021-06-05 10:29:35,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 10:29:35,077 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:29:35,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:29:35,084 INFO L225 Difference]: With dead ends: 5383 [2021-06-05 10:29:35,084 INFO L226 Difference]: Without dead ends: 5383 [2021-06-05 10:29:35,085 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 4673.8ms TimeCoverageRelationStatistics Valid=824, Invalid=2368, Unknown=0, NotChecked=0, Total=3192 [2021-06-05 10:29:35,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5383 states. [2021-06-05 10:29:35,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5383 to 3007. [2021-06-05 10:29:35,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3007 states, 3005 states have (on average 2.589351081530782) internal successors, (7781), 3006 states have internal predecessors, (7781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:35,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3007 states to 3007 states and 7781 transitions. [2021-06-05 10:29:35,146 INFO L78 Accepts]: Start accepts. Automaton has 3007 states and 7781 transitions. Word has length 94 [2021-06-05 10:29:35,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:29:35,146 INFO L482 AbstractCegarLoop]: Abstraction has 3007 states and 7781 transitions. [2021-06-05 10:29:35,146 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:35,146 INFO L276 IsEmpty]: Start isEmpty. Operand 3007 states and 7781 transitions. [2021-06-05 10:29:35,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:29:35,151 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:29:35,152 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:29:35,152 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 10:29:35,152 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:29:35,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:29:35,152 INFO L82 PathProgramCache]: Analyzing trace with hash 488017371, now seen corresponding path program 2 times [2021-06-05 10:29:35,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:29:35,152 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455929203] [2021-06-05 10:29:35,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:29:35,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:29:35,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:29:35,954 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:29:35,954 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455929203] [2021-06-05 10:29:35,954 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455929203] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:29:35,954 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:29:35,954 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:29:35,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472083965] [2021-06-05 10:29:35,955 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:29:35,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:29:35,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:29:35,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=514, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:29:35,956 INFO L87 Difference]: Start difference. First operand 3007 states and 7781 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:38,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:29:38,536 INFO L93 Difference]: Finished difference Result 4707 states and 12180 transitions. [2021-06-05 10:29:38,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-06-05 10:29:38,536 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:29:38,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:29:38,544 INFO L225 Difference]: With dead ends: 4707 [2021-06-05 10:29:38,544 INFO L226 Difference]: Without dead ends: 4707 [2021-06-05 10:29:38,545 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1124 ImplicationChecksByTransitivity, 2265.4ms TimeCoverageRelationStatistics Valid=1035, Invalid=3935, Unknown=0, NotChecked=0, Total=4970 [2021-06-05 10:29:38,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4707 states. [2021-06-05 10:29:38,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4707 to 4465. [2021-06-05 10:29:38,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4465 states, 4463 states have (on average 2.625588169392785) internal successors, (11718), 4464 states have internal predecessors, (11718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:38,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4465 states to 4465 states and 11718 transitions. [2021-06-05 10:29:38,624 INFO L78 Accepts]: Start accepts. Automaton has 4465 states and 11718 transitions. Word has length 94 [2021-06-05 10:29:38,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:29:38,624 INFO L482 AbstractCegarLoop]: Abstraction has 4465 states and 11718 transitions. [2021-06-05 10:29:38,624 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:38,624 INFO L276 IsEmpty]: Start isEmpty. Operand 4465 states and 11718 transitions. [2021-06-05 10:29:38,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:29:38,633 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:29:38,633 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:29:38,633 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 10:29:38,633 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:29:38,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:29:38,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1712244349, now seen corresponding path program 7 times [2021-06-05 10:29:38,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:29:38,634 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65321118] [2021-06-05 10:29:38,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:29:38,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:29:39,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:29:39,038 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:29:39,038 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65321118] [2021-06-05 10:29:39,038 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65321118] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:29:39,038 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:29:39,038 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 10:29:39,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637034840] [2021-06-05 10:29:39,038 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 10:29:39,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:29:39,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 10:29:39,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2021-06-05 10:29:39,039 INFO L87 Difference]: Start difference. First operand 4465 states and 11718 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:40,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:29:40,177 INFO L93 Difference]: Finished difference Result 5765 states and 14662 transitions. [2021-06-05 10:29:40,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-05 10:29:40,177 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:29:40,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:29:40,184 INFO L225 Difference]: With dead ends: 5765 [2021-06-05 10:29:40,184 INFO L226 Difference]: Without dead ends: 5765 [2021-06-05 10:29:40,185 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1032.1ms TimeCoverageRelationStatistics Valid=311, Invalid=745, Unknown=0, NotChecked=0, Total=1056 [2021-06-05 10:29:40,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5765 states. [2021-06-05 10:29:40,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5765 to 4465. [2021-06-05 10:29:40,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4465 states, 4463 states have (on average 2.625588169392785) internal successors, (11718), 4464 states have internal predecessors, (11718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:40,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4465 states to 4465 states and 11718 transitions. [2021-06-05 10:29:40,267 INFO L78 Accepts]: Start accepts. Automaton has 4465 states and 11718 transitions. Word has length 94 [2021-06-05 10:29:40,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:29:40,268 INFO L482 AbstractCegarLoop]: Abstraction has 4465 states and 11718 transitions. [2021-06-05 10:29:40,268 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:40,268 INFO L276 IsEmpty]: Start isEmpty. Operand 4465 states and 11718 transitions. [2021-06-05 10:29:40,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:29:40,275 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:29:40,275 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:29:40,276 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-05 10:29:40,276 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:29:40,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:29:40,276 INFO L82 PathProgramCache]: Analyzing trace with hash -186806265, now seen corresponding path program 8 times [2021-06-05 10:29:40,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:29:40,276 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655141420] [2021-06-05 10:29:40,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:29:40,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:29:40,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:29:40,720 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:29:40,721 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655141420] [2021-06-05 10:29:40,721 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655141420] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:29:40,721 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:29:40,721 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 10:29:40,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157131699] [2021-06-05 10:29:40,721 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 10:29:40,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:29:40,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 10:29:40,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-06-05 10:29:40,722 INFO L87 Difference]: Start difference. First operand 4465 states and 11718 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:42,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:29:42,056 INFO L93 Difference]: Finished difference Result 5671 states and 14273 transitions. [2021-06-05 10:29:42,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 10:29:42,057 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:29:42,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:29:42,064 INFO L225 Difference]: With dead ends: 5671 [2021-06-05 10:29:42,064 INFO L226 Difference]: Without dead ends: 5671 [2021-06-05 10:29:42,065 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1194.2ms TimeCoverageRelationStatistics Valid=340, Invalid=850, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 10:29:42,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5671 states. [2021-06-05 10:29:42,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5671 to 4415. [2021-06-05 10:29:42,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4415 states, 4413 states have (on average 2.624291864944482) internal successors, (11581), 4414 states have internal predecessors, (11581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:42,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4415 states to 4415 states and 11581 transitions. [2021-06-05 10:29:42,143 INFO L78 Accepts]: Start accepts. Automaton has 4415 states and 11581 transitions. Word has length 94 [2021-06-05 10:29:42,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:29:42,143 INFO L482 AbstractCegarLoop]: Abstraction has 4415 states and 11581 transitions. [2021-06-05 10:29:42,143 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:42,143 INFO L276 IsEmpty]: Start isEmpty. Operand 4415 states and 11581 transitions. [2021-06-05 10:29:42,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:29:42,150 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:29:42,150 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:29:42,150 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-05 10:29:42,150 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:29:42,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:29:42,151 INFO L82 PathProgramCache]: Analyzing trace with hash -938424673, now seen corresponding path program 9 times [2021-06-05 10:29:42,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:29:42,151 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462166799] [2021-06-05 10:29:42,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:29:42,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:29:42,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:29:42,562 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:29:42,563 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462166799] [2021-06-05 10:29:42,563 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462166799] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:29:42,563 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:29:42,563 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 10:29:42,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418230517] [2021-06-05 10:29:42,563 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 10:29:42,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:29:42,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 10:29:42,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-06-05 10:29:42,564 INFO L87 Difference]: Start difference. First operand 4415 states and 11581 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:43,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:29:43,717 INFO L93 Difference]: Finished difference Result 5560 states and 13903 transitions. [2021-06-05 10:29:43,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 10:29:43,717 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:29:43,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:29:43,725 INFO L225 Difference]: With dead ends: 5560 [2021-06-05 10:29:43,725 INFO L226 Difference]: Without dead ends: 5560 [2021-06-05 10:29:43,726 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1089.6ms TimeCoverageRelationStatistics Valid=325, Invalid=865, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 10:29:43,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5560 states. [2021-06-05 10:29:43,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5560 to 4365. [2021-06-05 10:29:43,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4365 states, 4363 states have (on average 2.6229658491863397) internal successors, (11444), 4364 states have internal predecessors, (11444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:43,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4365 states to 4365 states and 11444 transitions. [2021-06-05 10:29:43,824 INFO L78 Accepts]: Start accepts. Automaton has 4365 states and 11444 transitions. Word has length 94 [2021-06-05 10:29:43,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:29:43,825 INFO L482 AbstractCegarLoop]: Abstraction has 4365 states and 11444 transitions. [2021-06-05 10:29:43,825 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:43,825 INFO L276 IsEmpty]: Start isEmpty. Operand 4365 states and 11444 transitions. [2021-06-05 10:29:43,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:29:43,832 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:29:43,832 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:29:43,832 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-05 10:29:43,832 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:29:43,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:29:43,832 INFO L82 PathProgramCache]: Analyzing trace with hash -356783737, now seen corresponding path program 10 times [2021-06-05 10:29:43,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:29:43,833 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859117403] [2021-06-05 10:29:43,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:29:43,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:29:44,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:29:44,229 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:29:44,229 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859117403] [2021-06-05 10:29:44,229 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859117403] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:29:44,229 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:29:44,229 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 10:29:44,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850937932] [2021-06-05 10:29:44,230 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 10:29:44,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:29:44,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 10:29:44,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-06-05 10:29:44,230 INFO L87 Difference]: Start difference. First operand 4365 states and 11444 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:45,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:29:45,261 INFO L93 Difference]: Finished difference Result 5669 states and 14136 transitions. [2021-06-05 10:29:45,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 10:29:45,262 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:29:45,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:29:45,267 INFO L225 Difference]: With dead ends: 5669 [2021-06-05 10:29:45,267 INFO L226 Difference]: Without dead ends: 5669 [2021-06-05 10:29:45,268 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 971.2ms TimeCoverageRelationStatistics Valid=310, Invalid=880, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 10:29:45,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5669 states. [2021-06-05 10:29:45,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5669 to 4265. [2021-06-05 10:29:45,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4265 states, 4263 states have (on average 2.620220501993901) internal successors, (11170), 4264 states have internal predecessors, (11170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:45,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4265 states to 4265 states and 11170 transitions. [2021-06-05 10:29:45,351 INFO L78 Accepts]: Start accepts. Automaton has 4265 states and 11170 transitions. Word has length 94 [2021-06-05 10:29:45,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:29:45,351 INFO L482 AbstractCegarLoop]: Abstraction has 4265 states and 11170 transitions. [2021-06-05 10:29:45,352 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:45,352 INFO L276 IsEmpty]: Start isEmpty. Operand 4265 states and 11170 transitions. [2021-06-05 10:29:45,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:29:45,359 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:29:45,359 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:29:45,359 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-05 10:29:45,359 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:29:45,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:29:45,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1061403897, now seen corresponding path program 11 times [2021-06-05 10:29:45,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:29:45,360 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700764539] [2021-06-05 10:29:45,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:29:45,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:29:45,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:29:45,813 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:29:45,813 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700764539] [2021-06-05 10:29:45,815 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700764539] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:29:45,815 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:29:45,815 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 10:29:45,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056249247] [2021-06-05 10:29:45,816 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 10:29:45,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:29:45,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 10:29:45,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-06-05 10:29:45,816 INFO L87 Difference]: Start difference. First operand 4265 states and 11170 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:46,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:29:46,882 INFO L93 Difference]: Finished difference Result 5689 states and 14140 transitions. [2021-06-05 10:29:46,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 10:29:46,883 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:29:46,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:29:46,889 INFO L225 Difference]: With dead ends: 5689 [2021-06-05 10:29:46,889 INFO L226 Difference]: Without dead ends: 5689 [2021-06-05 10:29:46,890 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 977.0ms TimeCoverageRelationStatistics Valid=295, Invalid=895, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 10:29:46,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5689 states. [2021-06-05 10:29:46,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5689 to 4215. [2021-06-05 10:29:46,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4215 states, 4213 states have (on average 2.618798955613577) internal successors, (11033), 4214 states have internal predecessors, (11033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:46,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4215 states to 4215 states and 11033 transitions. [2021-06-05 10:29:46,970 INFO L78 Accepts]: Start accepts. Automaton has 4215 states and 11033 transitions. Word has length 94 [2021-06-05 10:29:46,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:29:46,971 INFO L482 AbstractCegarLoop]: Abstraction has 4215 states and 11033 transitions. [2021-06-05 10:29:46,971 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:46,971 INFO L276 IsEmpty]: Start isEmpty. Operand 4215 states and 11033 transitions. [2021-06-05 10:29:46,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:29:46,978 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:29:46,978 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:29:46,978 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-05 10:29:46,978 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:29:46,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:29:46,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1559630751, now seen corresponding path program 12 times [2021-06-05 10:29:46,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:29:46,979 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467127619] [2021-06-05 10:29:46,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:29:47,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:29:47,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:29:47,352 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:29:47,352 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467127619] [2021-06-05 10:29:47,352 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467127619] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:29:47,352 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:29:47,352 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 10:29:47,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872654751] [2021-06-05 10:29:47,353 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 10:29:47,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:29:47,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 10:29:47,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2021-06-05 10:29:47,353 INFO L87 Difference]: Start difference. First operand 4215 states and 11033 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:48,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:29:48,266 INFO L93 Difference]: Finished difference Result 4932 states and 12481 transitions. [2021-06-05 10:29:48,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 10:29:48,267 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:29:48,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:29:48,271 INFO L225 Difference]: With dead ends: 4932 [2021-06-05 10:29:48,271 INFO L226 Difference]: Without dead ends: 4932 [2021-06-05 10:29:48,272 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 855.8ms TimeCoverageRelationStatistics Valid=280, Invalid=910, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 10:29:48,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4932 states. [2021-06-05 10:29:48,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4932 to 3925. [2021-06-05 10:29:48,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3925 states, 3923 states have (on average 2.634208513892429) internal successors, (10334), 3924 states have internal predecessors, (10334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:48,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3925 states to 3925 states and 10334 transitions. [2021-06-05 10:29:48,350 INFO L78 Accepts]: Start accepts. Automaton has 3925 states and 10334 transitions. Word has length 94 [2021-06-05 10:29:48,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:29:48,350 INFO L482 AbstractCegarLoop]: Abstraction has 3925 states and 10334 transitions. [2021-06-05 10:29:48,350 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:48,350 INFO L276 IsEmpty]: Start isEmpty. Operand 3925 states and 10334 transitions. [2021-06-05 10:29:48,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:29:48,356 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:29:48,356 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:29:48,357 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-05 10:29:48,357 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:29:48,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:29:48,357 INFO L82 PathProgramCache]: Analyzing trace with hash 891391129, now seen corresponding path program 13 times [2021-06-05 10:29:48,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:29:48,357 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695239231] [2021-06-05 10:29:48,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:29:48,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:29:49,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:29:49,101 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:29:49,101 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695239231] [2021-06-05 10:29:49,101 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695239231] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:29:49,101 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:29:49,101 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:29:49,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505417812] [2021-06-05 10:29:49,102 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:29:49,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:29:49,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:29:49,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=522, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:29:49,103 INFO L87 Difference]: Start difference. First operand 3925 states and 10334 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:50,142 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2021-06-05 10:29:50,271 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:29:50,436 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-06-05 10:29:50,580 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:29:50,766 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 10:29:50,960 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2021-06-05 10:29:51,190 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-06-05 10:29:51,456 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 10:29:51,781 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-06-05 10:29:52,122 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:29:52,398 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:29:52,595 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:29:52,838 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 10:29:53,065 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 78 [2021-06-05 10:29:53,516 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2021-06-05 10:29:53,649 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:29:53,899 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 85 [2021-06-05 10:29:54,033 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:29:54,278 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 87 [2021-06-05 10:29:54,408 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:29:54,643 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 86 [2021-06-05 10:29:54,764 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-06-05 10:29:54,992 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2021-06-05 10:29:55,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:29:55,122 INFO L93 Difference]: Finished difference Result 6639 states and 16701 transitions. [2021-06-05 10:29:55,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-06-05 10:29:55,122 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:29:55,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:29:55,127 INFO L225 Difference]: With dead ends: 6639 [2021-06-05 10:29:55,128 INFO L226 Difference]: Without dead ends: 6639 [2021-06-05 10:29:55,129 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 5521.7ms TimeCoverageRelationStatistics Valid=1000, Invalid=2422, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 10:29:55,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6639 states. [2021-06-05 10:29:55,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6639 to 3754. [2021-06-05 10:29:55,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3754 states, 3752 states have (on average 2.651652452025586) internal successors, (9949), 3753 states have internal predecessors, (9949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:55,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3754 states to 3754 states and 9949 transitions. [2021-06-05 10:29:55,201 INFO L78 Accepts]: Start accepts. Automaton has 3754 states and 9949 transitions. Word has length 94 [2021-06-05 10:29:55,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:29:55,201 INFO L482 AbstractCegarLoop]: Abstraction has 3754 states and 9949 transitions. [2021-06-05 10:29:55,201 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:55,201 INFO L276 IsEmpty]: Start isEmpty. Operand 3754 states and 9949 transitions. [2021-06-05 10:29:55,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:29:55,207 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:29:55,207 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:29:55,207 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-05 10:29:55,207 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:29:55,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:29:55,208 INFO L82 PathProgramCache]: Analyzing trace with hash -409967847, now seen corresponding path program 3 times [2021-06-05 10:29:55,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:29:55,208 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793371129] [2021-06-05 10:29:55,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:29:55,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:29:55,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:29:55,937 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:29:55,938 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793371129] [2021-06-05 10:29:55,938 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793371129] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:29:55,938 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:29:55,938 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:29:55,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657754512] [2021-06-05 10:29:55,938 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:29:55,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:29:55,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:29:55,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:29:55,939 INFO L87 Difference]: Start difference. First operand 3754 states and 9949 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:58,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:29:58,630 INFO L93 Difference]: Finished difference Result 5678 states and 15047 transitions. [2021-06-05 10:29:58,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-05 10:29:58,631 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:29:58,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:29:58,635 INFO L225 Difference]: With dead ends: 5678 [2021-06-05 10:29:58,635 INFO L226 Difference]: Without dead ends: 5678 [2021-06-05 10:29:58,636 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 725 ImplicationChecksByTransitivity, 2313.0ms TimeCoverageRelationStatistics Valid=771, Invalid=2889, Unknown=0, NotChecked=0, Total=3660 [2021-06-05 10:29:58,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5678 states. [2021-06-05 10:29:58,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5678 to 4375. [2021-06-05 10:29:58,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4375 states, 4373 states have (on average 2.687399954264807) internal successors, (11752), 4374 states have internal predecessors, (11752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:58,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4375 states to 4375 states and 11752 transitions. [2021-06-05 10:29:58,697 INFO L78 Accepts]: Start accepts. Automaton has 4375 states and 11752 transitions. Word has length 94 [2021-06-05 10:29:58,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:29:58,697 INFO L482 AbstractCegarLoop]: Abstraction has 4375 states and 11752 transitions. [2021-06-05 10:29:58,697 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:29:58,697 INFO L276 IsEmpty]: Start isEmpty. Operand 4375 states and 11752 transitions. [2021-06-05 10:29:58,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:29:58,704 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:29:58,704 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:29:58,704 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-05 10:29:58,704 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:29:58,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:29:58,705 INFO L82 PathProgramCache]: Analyzing trace with hash 814259131, now seen corresponding path program 14 times [2021-06-05 10:29:58,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:29:58,705 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48856952] [2021-06-05 10:29:58,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:29:58,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:29:59,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:29:59,393 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:29:59,393 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48856952] [2021-06-05 10:29:59,393 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48856952] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:29:59,393 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:29:59,393 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:29:59,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404832634] [2021-06-05 10:29:59,394 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:29:59,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:29:59,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:29:59,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=526, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:29:59,394 INFO L87 Difference]: Start difference. First operand 4375 states and 11752 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:30:00,444 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2021-06-05 10:30:00,572 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:30:00,740 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-06-05 10:30:00,900 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:30:01,091 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 10:30:01,289 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2021-06-05 10:30:01,514 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-06-05 10:30:01,695 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 10:30:01,938 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-06-05 10:30:02,290 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:30:02,575 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:30:02,785 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:30:03,048 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 10:30:03,260 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 10:30:03,502 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2021-06-05 10:30:03,981 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-06-05 10:30:04,321 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-06-05 10:30:04,444 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:30:04,667 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 82 [2021-06-05 10:30:04,796 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:30:05,021 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2021-06-05 10:30:05,279 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-06-05 10:30:05,505 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 10:30:05,641 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-06-05 10:30:05,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:30:05,646 INFO L93 Difference]: Finished difference Result 6745 states and 17169 transitions. [2021-06-05 10:30:05,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-05 10:30:05,646 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:30:05,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:30:05,651 INFO L225 Difference]: With dead ends: 6745 [2021-06-05 10:30:05,651 INFO L226 Difference]: Without dead ends: 6745 [2021-06-05 10:30:05,652 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 5613.9ms TimeCoverageRelationStatistics Valid=994, Invalid=2546, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 10:30:05,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6745 states. [2021-06-05 10:30:05,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6745 to 4303. [2021-06-05 10:30:05,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4303 states, 4301 states have (on average 2.6821669379214135) internal successors, (11536), 4302 states have internal predecessors, (11536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:30:05,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4303 states to 4303 states and 11536 transitions. [2021-06-05 10:30:05,715 INFO L78 Accepts]: Start accepts. Automaton has 4303 states and 11536 transitions. Word has length 94 [2021-06-05 10:30:05,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:30:05,715 INFO L482 AbstractCegarLoop]: Abstraction has 4303 states and 11536 transitions. [2021-06-05 10:30:05,715 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:30:05,715 INFO L276 IsEmpty]: Start isEmpty. Operand 4303 states and 11536 transitions. [2021-06-05 10:30:05,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:30:05,721 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:30:05,721 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:30:05,721 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-05 10:30:05,721 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:30:05,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:30:05,721 INFO L82 PathProgramCache]: Analyzing trace with hash -985219549, now seen corresponding path program 15 times [2021-06-05 10:30:05,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:30:05,722 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795403435] [2021-06-05 10:30:05,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:30:05,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:30:06,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:30:06,495 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:30:06,495 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795403435] [2021-06-05 10:30:06,495 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795403435] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:30:06,495 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:30:06,495 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:30:06,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669751524] [2021-06-05 10:30:06,495 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:30:06,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:30:06,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:30:06,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:30:06,496 INFO L87 Difference]: Start difference. First operand 4303 states and 11536 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:30:07,458 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2021-06-05 10:30:07,589 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:30:07,756 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-06-05 10:30:07,916 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:30:08,102 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 10:30:08,297 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2021-06-05 10:30:08,524 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 10:30:08,860 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:30:09,140 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:30:09,339 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:30:09,541 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-06-05 10:30:09,765 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 10:30:09,956 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 10:30:10,204 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-06-05 10:30:10,621 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-06-05 10:30:10,932 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 10:30:11,055 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:30:11,254 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 10:30:11,384 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:30:11,559 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-06-05 10:30:11,756 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2021-06-05 10:30:11,877 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-06-05 10:30:12,072 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 10:30:12,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:30:12,195 INFO L93 Difference]: Finished difference Result 7983 states and 20169 transitions. [2021-06-05 10:30:12,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-05 10:30:12,196 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:30:12,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:30:12,202 INFO L225 Difference]: With dead ends: 7983 [2021-06-05 10:30:12,203 INFO L226 Difference]: Without dead ends: 7983 [2021-06-05 10:30:12,203 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 5354.6ms TimeCoverageRelationStatistics Valid=975, Invalid=2565, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 10:30:12,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7983 states. [2021-06-05 10:30:12,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7983 to 4231. [2021-06-05 10:30:12,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4231 states, 4229 states have (on average 2.6767557342161266) internal successors, (11320), 4230 states have internal predecessors, (11320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:30:12,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4231 states to 4231 states and 11320 transitions. [2021-06-05 10:30:12,284 INFO L78 Accepts]: Start accepts. Automaton has 4231 states and 11320 transitions. Word has length 94 [2021-06-05 10:30:12,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:30:12,284 INFO L482 AbstractCegarLoop]: Abstraction has 4231 states and 11320 transitions. [2021-06-05 10:30:12,284 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:30:12,284 INFO L276 IsEmpty]: Start isEmpty. Operand 4231 states and 11320 transitions. [2021-06-05 10:30:12,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:30:12,290 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:30:12,290 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:30:12,290 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-05 10:30:12,290 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:30:12,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:30:12,291 INFO L82 PathProgramCache]: Analyzing trace with hash 781832763, now seen corresponding path program 16 times [2021-06-05 10:30:12,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:30:12,291 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269686695] [2021-06-05 10:30:12,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:30:12,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:30:13,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:30:13,125 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:30:13,125 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269686695] [2021-06-05 10:30:13,125 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269686695] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:30:13,125 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:30:13,125 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:30:13,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557374170] [2021-06-05 10:30:13,125 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:30:13,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:30:13,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:30:13,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:30:13,126 INFO L87 Difference]: Start difference. First operand 4231 states and 11320 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:30:14,101 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2021-06-05 10:30:14,231 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:30:14,398 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-06-05 10:30:14,544 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:30:14,733 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 10:30:15,129 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:30:15,418 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 10:30:15,572 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:30:15,771 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:30:15,979 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-06-05 10:30:16,203 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 10:30:16,394 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 10:30:16,641 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-06-05 10:30:17,030 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2021-06-05 10:30:17,341 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 10:30:17,464 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:30:17,647 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:30:17,776 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:30:17,934 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 10:30:18,112 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2021-06-05 10:30:18,235 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-06-05 10:30:18,412 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:30:18,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:30:18,536 INFO L93 Difference]: Finished difference Result 8100 states and 20445 transitions. [2021-06-05 10:30:18,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-06-05 10:30:18,536 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:30:18,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:30:18,542 INFO L225 Difference]: With dead ends: 8100 [2021-06-05 10:30:18,542 INFO L226 Difference]: Without dead ends: 8100 [2021-06-05 10:30:18,543 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 5105.8ms TimeCoverageRelationStatistics Valid=925, Invalid=2497, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 10:30:18,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8100 states. [2021-06-05 10:30:18,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8100 to 4087. [2021-06-05 10:30:18,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4087 states, 4085 states have (on average 2.665361077111383) internal successors, (10888), 4086 states have internal predecessors, (10888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:30:18,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4087 states to 4087 states and 10888 transitions. [2021-06-05 10:30:18,608 INFO L78 Accepts]: Start accepts. Automaton has 4087 states and 10888 transitions. Word has length 94 [2021-06-05 10:30:18,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:30:18,608 INFO L482 AbstractCegarLoop]: Abstraction has 4087 states and 10888 transitions. [2021-06-05 10:30:18,608 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:30:18,608 INFO L276 IsEmpty]: Start isEmpty. Operand 4087 states and 10888 transitions. [2021-06-05 10:30:18,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:30:18,612 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:30:18,612 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:30:18,612 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-05 10:30:18,613 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:30:18,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:30:18,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1052178245, now seen corresponding path program 17 times [2021-06-05 10:30:18,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:30:18,613 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586152424] [2021-06-05 10:30:18,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:30:18,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:30:19,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:30:19,453 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:30:19,453 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586152424] [2021-06-05 10:30:19,453 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586152424] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:30:19,453 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:30:19,453 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:30:19,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650069424] [2021-06-05 10:30:19,454 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:30:19,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:30:19,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:30:19,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:30:19,455 INFO L87 Difference]: Start difference. First operand 4087 states and 10888 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:30:20,470 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2021-06-05 10:30:20,602 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:30:20,774 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:30:21,215 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-06-05 10:30:21,354 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:30:21,628 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 10:30:21,784 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:30:22,030 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:30:22,258 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-06-05 10:30:22,511 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 10:30:22,717 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 10:30:22,960 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-06-05 10:30:23,352 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-06-05 10:30:23,629 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:30:23,752 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:30:23,917 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:30:24,047 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:30:24,191 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-06-05 10:30:24,351 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2021-06-05 10:30:24,471 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-06-05 10:30:24,633 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:30:24,772 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-06-05 10:30:24,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:30:24,777 INFO L93 Difference]: Finished difference Result 8244 states and 20784 transitions. [2021-06-05 10:30:24,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 10:30:24,777 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:30:24,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:30:24,783 INFO L225 Difference]: With dead ends: 8244 [2021-06-05 10:30:24,783 INFO L226 Difference]: Without dead ends: 8244 [2021-06-05 10:30:24,784 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 4896.4ms TimeCoverageRelationStatistics Valid=877, Invalid=2429, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 10:30:24,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8244 states. [2021-06-05 10:30:24,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8244 to 4015. [2021-06-05 10:30:24,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4015 states, 4013 states have (on average 2.6593570894592573) internal successors, (10672), 4014 states have internal predecessors, (10672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:30:24,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4015 states to 4015 states and 10672 transitions. [2021-06-05 10:30:24,855 INFO L78 Accepts]: Start accepts. Automaton has 4015 states and 10672 transitions. Word has length 94 [2021-06-05 10:30:24,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:30:24,855 INFO L482 AbstractCegarLoop]: Abstraction has 4015 states and 10672 transitions. [2021-06-05 10:30:24,855 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:30:24,855 INFO L276 IsEmpty]: Start isEmpty. Operand 4015 states and 10672 transitions. [2021-06-05 10:30:24,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:30:24,861 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:30:24,861 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:30:24,861 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-06-05 10:30:24,861 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:30:24,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:30:24,861 INFO L82 PathProgramCache]: Analyzing trace with hash -314420957, now seen corresponding path program 18 times [2021-06-05 10:30:24,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:30:24,862 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446206415] [2021-06-05 10:30:24,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:30:24,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:30:25,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:30:25,635 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:30:25,635 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446206415] [2021-06-05 10:30:25,635 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446206415] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:30:25,635 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:30:25,635 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:30:25,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135223643] [2021-06-05 10:30:25,635 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:30:25,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:30:25,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:30:25,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:30:25,636 INFO L87 Difference]: Start difference. First operand 4015 states and 10672 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:30:26,611 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:30:26,940 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-06-05 10:30:27,084 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-06-05 10:30:27,222 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:30:27,533 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 10:30:27,686 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:30:27,884 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:30:28,085 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-06-05 10:30:28,310 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 10:30:28,498 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 10:30:28,734 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-06-05 10:30:29,069 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-06-05 10:30:29,326 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 10:30:29,447 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:30:29,594 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:30:29,721 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:30:29,847 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-06-05 10:30:29,987 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-06-05 10:30:30,107 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-06-05 10:30:30,264 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:30:30,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:30:30,386 INFO L93 Difference]: Finished difference Result 7598 states and 19373 transitions. [2021-06-05 10:30:30,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 10:30:30,386 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:30:30,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:30:30,391 INFO L225 Difference]: With dead ends: 7598 [2021-06-05 10:30:30,391 INFO L226 Difference]: Without dead ends: 7598 [2021-06-05 10:30:30,392 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 4531.4ms TimeCoverageRelationStatistics Valid=831, Invalid=2361, Unknown=0, NotChecked=0, Total=3192 [2021-06-05 10:30:30,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7598 states. [2021-06-05 10:30:30,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7598 to 3878. [2021-06-05 10:30:30,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3878 states, 3876 states have (on average 2.6519607843137254) internal successors, (10279), 3877 states have internal predecessors, (10279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:30:30,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3878 states to 3878 states and 10279 transitions. [2021-06-05 10:30:30,452 INFO L78 Accepts]: Start accepts. Automaton has 3878 states and 10279 transitions. Word has length 94 [2021-06-05 10:30:30,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:30:30,452 INFO L482 AbstractCegarLoop]: Abstraction has 3878 states and 10279 transitions. [2021-06-05 10:30:30,452 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:30:30,452 INFO L276 IsEmpty]: Start isEmpty. Operand 3878 states and 10279 transitions. [2021-06-05 10:30:30,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:30:30,455 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:30:30,456 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:30:30,456 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-06-05 10:30:30,456 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:30:30,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:30:30,456 INFO L82 PathProgramCache]: Analyzing trace with hash -76295461, now seen corresponding path program 19 times [2021-06-05 10:30:30,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:30:30,456 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950127995] [2021-06-05 10:30:30,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:30:30,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:30:30,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:30:30,831 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:30:30,831 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950127995] [2021-06-05 10:30:30,831 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950127995] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:30:30,831 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:30:30,831 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 10:30:30,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143227789] [2021-06-05 10:30:30,832 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 10:30:30,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:30:30,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 10:30:30,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-06-05 10:30:30,834 INFO L87 Difference]: Start difference. First operand 3878 states and 10279 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:30:31,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:30:31,981 INFO L93 Difference]: Finished difference Result 4725 states and 11913 transitions. [2021-06-05 10:30:31,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 10:30:31,981 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:30:31,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:30:31,986 INFO L225 Difference]: With dead ends: 4725 [2021-06-05 10:30:31,986 INFO L226 Difference]: Without dead ends: 4725 [2021-06-05 10:30:31,986 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1055.3ms TimeCoverageRelationStatistics Valid=325, Invalid=865, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 10:30:31,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4725 states. [2021-06-05 10:30:32,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4725 to 3900. [2021-06-05 10:30:32,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3900 states, 3898 states have (on average 2.650590046177527) internal successors, (10332), 3899 states have internal predecessors, (10332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:30:32,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3900 states to 3900 states and 10332 transitions. [2021-06-05 10:30:32,040 INFO L78 Accepts]: Start accepts. Automaton has 3900 states and 10332 transitions. Word has length 94 [2021-06-05 10:30:32,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:30:32,040 INFO L482 AbstractCegarLoop]: Abstraction has 3900 states and 10332 transitions. [2021-06-05 10:30:32,040 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:30:32,040 INFO L276 IsEmpty]: Start isEmpty. Operand 3900 states and 10332 transitions. [2021-06-05 10:30:32,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:30:32,044 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:30:32,044 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:30:32,044 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-06-05 10:30:32,044 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:30:32,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:30:32,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1290428557, now seen corresponding path program 20 times [2021-06-05 10:30:32,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:30:32,044 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649718817] [2021-06-05 10:30:32,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:30:32,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:30:32,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:30:32,695 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:30:32,695 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649718817] [2021-06-05 10:30:32,695 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649718817] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:30:32,696 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:30:32,696 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:30:32,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991158228] [2021-06-05 10:30:32,696 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:30:32,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:30:32,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:30:32,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:30:32,697 INFO L87 Difference]: Start difference. First operand 3900 states and 10332 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:30:33,643 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:30:33,834 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 10:30:34,014 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 10:30:34,370 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 10:30:34,576 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 10:30:34,786 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 10:30:35,061 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:30:35,249 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 10:30:35,435 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:30:35,628 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 10:30:35,811 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 10:30:36,001 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-06-05 10:30:36,195 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2021-06-05 10:30:36,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:30:36,203 INFO L93 Difference]: Finished difference Result 6168 states and 15677 transitions. [2021-06-05 10:30:36,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:30:36,204 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:30:36,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:30:36,208 INFO L225 Difference]: With dead ends: 6168 [2021-06-05 10:30:36,208 INFO L226 Difference]: Without dead ends: 6168 [2021-06-05 10:30:36,208 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 3299.9ms TimeCoverageRelationStatistics Valid=554, Invalid=1516, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 10:30:36,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6168 states. [2021-06-05 10:30:36,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6168 to 4002. [2021-06-05 10:30:36,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4002 states, 4000 states have (on average 2.65875) internal successors, (10635), 4001 states have internal predecessors, (10635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:30:36,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4002 states to 4002 states and 10635 transitions. [2021-06-05 10:30:36,258 INFO L78 Accepts]: Start accepts. Automaton has 4002 states and 10635 transitions. Word has length 94 [2021-06-05 10:30:36,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:30:36,259 INFO L482 AbstractCegarLoop]: Abstraction has 4002 states and 10635 transitions. [2021-06-05 10:30:36,259 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:30:36,259 INFO L276 IsEmpty]: Start isEmpty. Operand 4002 states and 10635 transitions. [2021-06-05 10:30:36,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:30:36,263 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:30:36,263 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:30:36,263 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-06-05 10:30:36,263 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:30:36,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:30:36,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1000323179, now seen corresponding path program 21 times [2021-06-05 10:30:36,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:30:36,264 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898220694] [2021-06-05 10:30:36,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:30:36,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:30:36,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:30:36,947 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:30:36,947 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898220694] [2021-06-05 10:30:36,947 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898220694] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:30:36,947 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:30:36,947 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:30:36,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986345206] [2021-06-05 10:30:36,947 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:30:36,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:30:36,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:30:36,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:30:36,948 INFO L87 Difference]: Start difference. First operand 4002 states and 10635 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:30:37,853 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:30:38,053 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 10:30:38,237 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 10:30:38,459 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-06-05 10:30:38,701 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-06-05 10:30:39,095 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 10:30:39,305 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 10:30:39,645 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-06-05 10:30:39,858 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-06-05 10:30:40,079 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2021-06-05 10:30:40,293 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2021-06-05 10:30:40,510 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 10:30:40,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:30:40,517 INFO L93 Difference]: Finished difference Result 6776 states and 17301 transitions. [2021-06-05 10:30:40,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-05 10:30:40,517 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:30:40,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:30:40,524 INFO L225 Difference]: With dead ends: 6776 [2021-06-05 10:30:40,524 INFO L226 Difference]: Without dead ends: 6776 [2021-06-05 10:30:40,524 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 3298.9ms TimeCoverageRelationStatistics Valid=536, Invalid=1444, Unknown=0, NotChecked=0, Total=1980 [2021-06-05 10:30:40,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6776 states. [2021-06-05 10:30:40,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6776 to 4002. [2021-06-05 10:30:40,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4002 states, 4000 states have (on average 2.65875) internal successors, (10635), 4001 states have internal predecessors, (10635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:30:40,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4002 states to 4002 states and 10635 transitions. [2021-06-05 10:30:40,582 INFO L78 Accepts]: Start accepts. Automaton has 4002 states and 10635 transitions. Word has length 94 [2021-06-05 10:30:40,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:30:40,582 INFO L482 AbstractCegarLoop]: Abstraction has 4002 states and 10635 transitions. [2021-06-05 10:30:40,582 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:30:40,582 INFO L276 IsEmpty]: Start isEmpty. Operand 4002 states and 10635 transitions. [2021-06-05 10:30:40,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:30:40,585 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:30:40,585 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:30:40,585 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-06-05 10:30:40,585 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:30:40,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:30:40,586 INFO L82 PathProgramCache]: Analyzing trace with hash -672432475, now seen corresponding path program 22 times [2021-06-05 10:30:40,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:30:40,586 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66821453] [2021-06-05 10:30:40,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:30:40,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:30:41,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:30:41,149 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:30:41,150 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66821453] [2021-06-05 10:30:41,150 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66821453] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:30:41,150 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:30:41,150 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:30:41,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525582083] [2021-06-05 10:30:41,153 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:30:41,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:30:41,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:30:41,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:30:41,154 INFO L87 Difference]: Start difference. First operand 4002 states and 10635 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:30:42,028 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:30:42,218 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 10:30:42,546 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:30:42,717 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 10:30:42,928 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 10:30:43,146 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 10:30:43,424 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-06-05 10:30:43,594 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2021-06-05 10:30:43,762 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 10:30:43,938 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 10:30:44,109 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:30:44,280 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:30:44,455 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:30:44,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:30:44,463 INFO L93 Difference]: Finished difference Result 6572 states and 16524 transitions. [2021-06-05 10:30:44,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:30:44,463 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:30:44,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:30:44,468 INFO L225 Difference]: With dead ends: 6572 [2021-06-05 10:30:44,468 INFO L226 Difference]: Without dead ends: 6572 [2021-06-05 10:30:44,468 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 3051.4ms TimeCoverageRelationStatistics Valid=539, Invalid=1531, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 10:30:44,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6572 states. [2021-06-05 10:30:44,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6572 to 4004. [2021-06-05 10:30:44,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4004 states, 4002 states have (on average 2.658670664667666) internal successors, (10640), 4003 states have internal predecessors, (10640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:30:44,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4004 states to 4004 states and 10640 transitions. [2021-06-05 10:30:44,530 INFO L78 Accepts]: Start accepts. Automaton has 4004 states and 10640 transitions. Word has length 94 [2021-06-05 10:30:44,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:30:44,530 INFO L482 AbstractCegarLoop]: Abstraction has 4004 states and 10640 transitions. [2021-06-05 10:30:44,530 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:30:44,530 INFO L276 IsEmpty]: Start isEmpty. Operand 4004 states and 10640 transitions. [2021-06-05 10:30:44,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:30:44,533 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:30:44,533 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:30:44,533 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-06-05 10:30:44,534 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:30:44,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:30:44,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1096103279, now seen corresponding path program 23 times [2021-06-05 10:30:44,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:30:44,534 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413329966] [2021-06-05 10:30:44,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:30:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:30:45,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:30:45,173 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:30:45,173 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413329966] [2021-06-05 10:30:45,173 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413329966] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:30:45,173 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:30:45,173 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:30:45,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361001792] [2021-06-05 10:30:45,174 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:30:45,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:30:45,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:30:45,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:30:45,174 INFO L87 Difference]: Start difference. First operand 4004 states and 10640 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:30:46,022 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:30:46,219 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 10:30:46,570 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:30:46,757 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:30:46,978 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:30:47,166 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:30:47,385 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:30:47,701 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-06-05 10:30:47,871 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2021-06-05 10:30:48,039 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 10:30:48,217 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 10:30:48,369 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:30:48,544 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:30:48,716 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:30:48,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:30:48,724 INFO L93 Difference]: Finished difference Result 6482 states and 16299 transitions. [2021-06-05 10:30:48,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 10:30:48,725 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:30:48,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:30:48,730 INFO L225 Difference]: With dead ends: 6482 [2021-06-05 10:30:48,730 INFO L226 Difference]: Without dead ends: 6482 [2021-06-05 10:30:48,730 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 3331.6ms TimeCoverageRelationStatistics Valid=572, Invalid=1590, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 10:30:48,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6482 states. [2021-06-05 10:30:48,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6482 to 4004. [2021-06-05 10:30:48,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4004 states, 4002 states have (on average 2.658670664667666) internal successors, (10640), 4003 states have internal predecessors, (10640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:30:48,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4004 states to 4004 states and 10640 transitions. [2021-06-05 10:30:48,782 INFO L78 Accepts]: Start accepts. Automaton has 4004 states and 10640 transitions. Word has length 94 [2021-06-05 10:30:48,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:30:48,783 INFO L482 AbstractCegarLoop]: Abstraction has 4004 states and 10640 transitions. [2021-06-05 10:30:48,783 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:30:48,783 INFO L276 IsEmpty]: Start isEmpty. Operand 4004 states and 10640 transitions. [2021-06-05 10:30:48,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:30:48,786 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:30:48,786 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:30:48,786 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-06-05 10:30:48,786 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:30:48,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:30:48,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1771290287, now seen corresponding path program 24 times [2021-06-05 10:30:48,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:30:48,787 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084706427] [2021-06-05 10:30:48,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:30:48,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:30:49,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:30:49,393 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:30:49,393 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084706427] [2021-06-05 10:30:49,393 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084706427] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:30:49,393 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:30:49,393 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:30:49,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654271608] [2021-06-05 10:30:49,393 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:30:49,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:30:49,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:30:49,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:30:49,394 INFO L87 Difference]: Start difference. First operand 4004 states and 10640 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:30:50,257 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:30:50,457 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 10:30:50,652 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 10:30:50,866 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 10:30:51,044 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 10:30:51,268 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 10:30:51,688 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 10:30:51,873 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:30:52,088 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 10:30:52,464 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-06-05 10:30:52,668 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 10:30:52,858 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-06-05 10:30:53,068 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2021-06-05 10:30:53,268 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-06-05 10:30:53,489 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2021-06-05 10:30:53,689 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 10:30:53,900 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2021-06-05 10:30:54,096 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:30:54,303 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 10:30:54,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:30:54,314 INFO L93 Difference]: Finished difference Result 7995 states and 20151 transitions. [2021-06-05 10:30:54,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 10:30:54,314 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:30:54,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:30:54,320 INFO L225 Difference]: With dead ends: 7995 [2021-06-05 10:30:54,320 INFO L226 Difference]: Without dead ends: 7995 [2021-06-05 10:30:54,320 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 4547.4ms TimeCoverageRelationStatistics Valid=773, Invalid=1879, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 10:30:54,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7995 states. [2021-06-05 10:30:54,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7995 to 4016. [2021-06-05 10:30:54,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4016 states, 4014 states have (on average 2.659691081215745) internal successors, (10676), 4015 states have internal predecessors, (10676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:30:54,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4016 states to 4016 states and 10676 transitions. [2021-06-05 10:30:54,391 INFO L78 Accepts]: Start accepts. Automaton has 4016 states and 10676 transitions. Word has length 94 [2021-06-05 10:30:54,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:30:54,391 INFO L482 AbstractCegarLoop]: Abstraction has 4016 states and 10676 transitions. [2021-06-05 10:30:54,392 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:30:54,392 INFO L276 IsEmpty]: Start isEmpty. Operand 4016 states and 10676 transitions. [2021-06-05 10:30:54,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:30:54,396 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:30:54,396 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:30:54,396 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-06-05 10:30:54,396 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:30:54,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:30:54,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1485857111, now seen corresponding path program 25 times [2021-06-05 10:30:54,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:30:54,396 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149162381] [2021-06-05 10:30:54,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:30:54,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:30:55,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:30:55,010 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:30:55,010 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149162381] [2021-06-05 10:30:55,010 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149162381] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:30:55,010 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:30:55,010 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:30:55,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350599365] [2021-06-05 10:30:55,010 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:30:55,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:30:55,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:30:55,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:30:55,011 INFO L87 Difference]: Start difference. First operand 4016 states and 10676 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:30:55,887 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:30:56,085 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 10:30:56,277 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 10:30:56,487 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 10:30:56,864 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:30:57,060 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:30:57,245 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:30:57,467 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:30:57,859 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-06-05 10:30:58,053 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-06-05 10:30:58,255 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-06-05 10:30:58,434 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:30:58,627 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 10:30:58,827 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:30:58,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:30:58,834 INFO L93 Difference]: Finished difference Result 7164 states and 18070 transitions. [2021-06-05 10:30:58,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 10:30:58,835 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:30:58,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:30:58,840 INFO L225 Difference]: With dead ends: 7164 [2021-06-05 10:30:58,840 INFO L226 Difference]: Without dead ends: 7164 [2021-06-05 10:30:58,840 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 3452.8ms TimeCoverageRelationStatistics Valid=587, Invalid=1575, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 10:30:58,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7164 states. [2021-06-05 10:30:58,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7164 to 4004. [2021-06-05 10:30:58,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4004 states, 4002 states have (on average 2.658670664667666) internal successors, (10640), 4003 states have internal predecessors, (10640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:30:58,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4004 states to 4004 states and 10640 transitions. [2021-06-05 10:30:58,903 INFO L78 Accepts]: Start accepts. Automaton has 4004 states and 10640 transitions. Word has length 94 [2021-06-05 10:30:58,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:30:58,903 INFO L482 AbstractCegarLoop]: Abstraction has 4004 states and 10640 transitions. [2021-06-05 10:30:58,903 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:30:58,903 INFO L276 IsEmpty]: Start isEmpty. Operand 4004 states and 10640 transitions. [2021-06-05 10:30:58,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:30:58,909 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:30:58,909 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:30:58,909 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-06-05 10:30:58,909 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:30:58,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:30:58,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1831152755, now seen corresponding path program 26 times [2021-06-05 10:30:58,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:30:58,909 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837895264] [2021-06-05 10:30:58,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:30:58,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:30:59,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:30:59,523 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:30:59,523 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837895264] [2021-06-05 10:30:59,523 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837895264] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:30:59,523 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:30:59,523 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:30:59,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123508776] [2021-06-05 10:30:59,523 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:30:59,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:30:59,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:30:59,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:30:59,524 INFO L87 Difference]: Start difference. First operand 4004 states and 10640 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:31:00,535 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:31:00,890 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:31:01,056 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:31:01,245 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 10:31:01,465 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 10:31:01,688 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 10:31:01,957 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-06-05 10:31:02,110 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 10:31:02,264 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 10:31:02,426 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 10:31:02,561 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:31:02,717 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:31:02,870 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 10:31:02,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:31:02,878 INFO L93 Difference]: Finished difference Result 6692 states and 16809 transitions. [2021-06-05 10:31:02,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:31:02,878 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:31:02,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:31:02,885 INFO L225 Difference]: With dead ends: 6692 [2021-06-05 10:31:02,885 INFO L226 Difference]: Without dead ends: 6692 [2021-06-05 10:31:02,886 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 3087.1ms TimeCoverageRelationStatistics Valid=524, Invalid=1546, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 10:31:02,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6692 states. [2021-06-05 10:31:02,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6692 to 4010. [2021-06-05 10:31:02,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4010 states, 4008 states have (on average 2.658433133732535) internal successors, (10655), 4009 states have internal predecessors, (10655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:31:02,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4010 states to 4010 states and 10655 transitions. [2021-06-05 10:31:02,944 INFO L78 Accepts]: Start accepts. Automaton has 4010 states and 10655 transitions. Word has length 94 [2021-06-05 10:31:02,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:31:02,945 INFO L482 AbstractCegarLoop]: Abstraction has 4010 states and 10655 transitions. [2021-06-05 10:31:02,945 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:31:02,945 INFO L276 IsEmpty]: Start isEmpty. Operand 4010 states and 10655 transitions. [2021-06-05 10:31:02,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:31:02,951 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:31:02,951 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:31:02,952 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-06-05 10:31:02,952 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:31:02,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:31:02,952 INFO L82 PathProgramCache]: Analyzing trace with hash -62617001, now seen corresponding path program 27 times [2021-06-05 10:31:02,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:31:02,952 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462157826] [2021-06-05 10:31:02,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:31:02,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:31:03,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:31:03,588 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:31:03,588 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462157826] [2021-06-05 10:31:03,589 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462157826] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:31:03,589 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:31:03,589 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:31:03,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703347483] [2021-06-05 10:31:03,589 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:31:03,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:31:03,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:31:03,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:31:03,589 INFO L87 Difference]: Start difference. First operand 4010 states and 10655 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:31:04,462 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:31:04,809 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:31:04,978 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:31:05,165 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:31:05,376 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:31:05,566 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:31:05,789 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:31:06,122 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-06-05 10:31:06,296 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 10:31:06,447 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 10:31:06,605 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 10:31:06,741 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:31:06,898 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:31:07,061 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 10:31:07,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:31:07,069 INFO L93 Difference]: Finished difference Result 6966 states and 17336 transitions. [2021-06-05 10:31:07,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 10:31:07,070 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:31:07,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:31:07,074 INFO L225 Difference]: With dead ends: 6966 [2021-06-05 10:31:07,074 INFO L226 Difference]: Without dead ends: 6966 [2021-06-05 10:31:07,075 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 3192.1ms TimeCoverageRelationStatistics Valid=557, Invalid=1605, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 10:31:07,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6966 states. [2021-06-05 10:31:07,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6966 to 4008. [2021-06-05 10:31:07,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4008 states, 4006 states have (on average 2.658512231652521) internal successors, (10650), 4007 states have internal predecessors, (10650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:31:07,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4008 states to 4008 states and 10650 transitions. [2021-06-05 10:31:07,127 INFO L78 Accepts]: Start accepts. Automaton has 4008 states and 10650 transitions. Word has length 94 [2021-06-05 10:31:07,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:31:07,127 INFO L482 AbstractCegarLoop]: Abstraction has 4008 states and 10650 transitions. [2021-06-05 10:31:07,127 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:31:07,128 INFO L276 IsEmpty]: Start isEmpty. Operand 4008 states and 10650 transitions. [2021-06-05 10:31:07,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:31:07,131 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:31:07,131 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:31:07,132 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-06-05 10:31:07,132 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:31:07,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:31:07,132 INFO L82 PathProgramCache]: Analyzing trace with hash -597869171, now seen corresponding path program 28 times [2021-06-05 10:31:07,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:31:07,132 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087752772] [2021-06-05 10:31:07,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:31:07,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:31:07,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:31:07,765 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:31:07,765 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087752772] [2021-06-05 10:31:07,765 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087752772] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:31:07,765 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:31:07,766 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:31:07,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514618604] [2021-06-05 10:31:07,766 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:31:07,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:31:07,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:31:07,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:31:07,767 INFO L87 Difference]: Start difference. First operand 4008 states and 10650 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:31:08,621 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:31:09,015 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:31:09,181 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:31:09,362 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:31:09,545 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:31:09,763 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:31:09,951 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:31:10,185 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:31:10,492 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-06-05 10:31:10,649 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 10:31:10,804 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 10:31:10,966 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 10:31:11,102 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:31:11,258 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:31:11,414 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 10:31:11,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:31:11,422 INFO L93 Difference]: Finished difference Result 6628 states and 16633 transitions. [2021-06-05 10:31:11,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 10:31:11,422 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:31:11,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:31:11,428 INFO L225 Difference]: With dead ends: 6628 [2021-06-05 10:31:11,428 INFO L226 Difference]: Without dead ends: 6628 [2021-06-05 10:31:11,428 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 3388.9ms TimeCoverageRelationStatistics Valid=589, Invalid=1667, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 10:31:11,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6628 states. [2021-06-05 10:31:11,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6628 to 4008. [2021-06-05 10:31:11,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4008 states, 4006 states have (on average 2.658512231652521) internal successors, (10650), 4007 states have internal predecessors, (10650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:31:11,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4008 states to 4008 states and 10650 transitions. [2021-06-05 10:31:11,481 INFO L78 Accepts]: Start accepts. Automaton has 4008 states and 10650 transitions. Word has length 94 [2021-06-05 10:31:11,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:31:11,482 INFO L482 AbstractCegarLoop]: Abstraction has 4008 states and 10650 transitions. [2021-06-05 10:31:11,482 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:31:11,482 INFO L276 IsEmpty]: Start isEmpty. Operand 4008 states and 10650 transitions. [2021-06-05 10:31:11,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:31:11,486 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:31:11,486 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:31:11,486 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-06-05 10:31:11,486 INFO L430 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:31:11,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:31:11,486 INFO L82 PathProgramCache]: Analyzing trace with hash 1198798443, now seen corresponding path program 29 times [2021-06-05 10:31:11,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:31:11,487 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333214968] [2021-06-05 10:31:11,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:31:11,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:31:12,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:31:12,223 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:31:12,223 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333214968] [2021-06-05 10:31:12,223 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333214968] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:31:12,223 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:31:12,223 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:31:12,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226730769] [2021-06-05 10:31:12,224 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:31:12,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:31:12,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:31:12,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:31:12,224 INFO L87 Difference]: Start difference. First operand 4008 states and 10650 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:31:13,082 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:31:13,259 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:31:13,448 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:31:13,638 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 10:31:13,848 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 10:31:14,026 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 10:31:14,259 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 10:31:14,648 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:31:14,867 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 10:31:15,053 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:31:15,280 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 10:31:15,626 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 10:31:15,827 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 10:31:16,002 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 10:31:16,215 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2021-06-05 10:31:16,401 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 10:31:16,623 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2021-06-05 10:31:16,800 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-06-05 10:31:17,013 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2021-06-05 10:31:17,204 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:31:17,409 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 10:31:17,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:31:17,419 INFO L93 Difference]: Finished difference Result 8350 states and 21073 transitions. [2021-06-05 10:31:17,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 10:31:17,420 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:31:17,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:31:17,426 INFO L225 Difference]: With dead ends: 8350 [2021-06-05 10:31:17,426 INFO L226 Difference]: Without dead ends: 8350 [2021-06-05 10:31:17,426 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 4860.6ms TimeCoverageRelationStatistics Valid=828, Invalid=2034, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 10:31:17,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8350 states. [2021-06-05 10:31:17,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8350 to 4044. [2021-06-05 10:31:17,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4044 states, 4042 states have (on average 2.6615536862939138) internal successors, (10758), 4043 states have internal predecessors, (10758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:31:17,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4044 states to 4044 states and 10758 transitions. [2021-06-05 10:31:17,491 INFO L78 Accepts]: Start accepts. Automaton has 4044 states and 10758 transitions. Word has length 94 [2021-06-05 10:31:17,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:31:17,491 INFO L482 AbstractCegarLoop]: Abstraction has 4044 states and 10758 transitions. [2021-06-05 10:31:17,491 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:31:17,491 INFO L276 IsEmpty]: Start isEmpty. Operand 4044 states and 10758 transitions. [2021-06-05 10:31:17,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:31:17,495 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:31:17,495 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:31:17,495 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-06-05 10:31:17,495 INFO L430 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:31:17,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:31:17,495 INFO L82 PathProgramCache]: Analyzing trace with hash -2058348955, now seen corresponding path program 30 times [2021-06-05 10:31:17,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:31:17,496 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598232261] [2021-06-05 10:31:17,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:31:17,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:31:18,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:31:18,083 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:31:18,083 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598232261] [2021-06-05 10:31:18,083 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598232261] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:31:18,083 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:31:18,083 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:31:18,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979461427] [2021-06-05 10:31:18,083 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:31:18,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:31:18,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:31:18,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:31:18,084 INFO L87 Difference]: Start difference. First operand 4044 states and 10758 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:31:18,932 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:31:19,111 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:31:19,300 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:31:19,488 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 10:31:19,697 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 10:31:20,103 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:31:20,279 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:31:20,492 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:31:20,679 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:31:20,912 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:31:21,288 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 10:31:21,471 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-06-05 10:31:21,644 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 10:31:21,837 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-06-05 10:31:22,021 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 10:31:22,221 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-06-05 10:31:22,401 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:31:22,590 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-06-05 10:31:22,780 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 10:31:22,958 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:31:23,143 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:31:23,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:31:23,154 INFO L93 Difference]: Finished difference Result 8619 states and 21533 transitions. [2021-06-05 10:31:23,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 10:31:23,154 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:31:23,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:31:23,160 INFO L225 Difference]: With dead ends: 8619 [2021-06-05 10:31:23,160 INFO L226 Difference]: Without dead ends: 8619 [2021-06-05 10:31:23,160 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 4622.4ms TimeCoverageRelationStatistics Valid=812, Invalid=2050, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 10:31:23,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8619 states. [2021-06-05 10:31:23,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8619 to 4032. [2021-06-05 10:31:23,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4032 states, 4030 states have (on average 2.660545905707196) internal successors, (10722), 4031 states have internal predecessors, (10722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:31:23,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4032 states to 4032 states and 10722 transitions. [2021-06-05 10:31:23,216 INFO L78 Accepts]: Start accepts. Automaton has 4032 states and 10722 transitions. Word has length 94 [2021-06-05 10:31:23,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:31:23,216 INFO L482 AbstractCegarLoop]: Abstraction has 4032 states and 10722 transitions. [2021-06-05 10:31:23,216 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:31:23,217 INFO L276 IsEmpty]: Start isEmpty. Operand 4032 states and 10722 transitions. [2021-06-05 10:31:23,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:31:23,219 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:31:23,220 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:31:23,220 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-06-05 10:31:23,220 INFO L430 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:31:23,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:31:23,220 INFO L82 PathProgramCache]: Analyzing trace with hash 271589039, now seen corresponding path program 31 times [2021-06-05 10:31:23,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:31:23,220 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743120574] [2021-06-05 10:31:23,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:31:23,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:31:23,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:31:23,781 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:31:23,781 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743120574] [2021-06-05 10:31:23,781 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743120574] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:31:23,781 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:31:23,781 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:31:23,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806746361] [2021-06-05 10:31:23,781 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:31:23,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:31:23,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:31:23,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:31:23,782 INFO L87 Difference]: Start difference. First operand 4032 states and 10722 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:31:24,627 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:31:24,803 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:31:24,989 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:31:25,374 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:31:25,547 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:31:25,726 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:31:25,934 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:31:26,120 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:31:26,342 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:31:26,685 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 10:31:26,859 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 10:31:27,040 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 10:31:27,198 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:31:27,367 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-06-05 10:31:27,546 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:31:27,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:31:27,553 INFO L93 Difference]: Finished difference Result 7446 states and 18786 transitions. [2021-06-05 10:31:27,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 10:31:27,553 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:31:27,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:31:27,560 INFO L225 Difference]: With dead ends: 7446 [2021-06-05 10:31:27,560 INFO L226 Difference]: Without dead ends: 7446 [2021-06-05 10:31:27,560 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 3420.3ms TimeCoverageRelationStatistics Valid=604, Invalid=1652, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 10:31:27,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7446 states. [2021-06-05 10:31:27,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7446 to 4008. [2021-06-05 10:31:27,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4008 states, 4006 states have (on average 2.658512231652521) internal successors, (10650), 4007 states have internal predecessors, (10650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:31:27,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4008 states to 4008 states and 10650 transitions. [2021-06-05 10:31:27,620 INFO L78 Accepts]: Start accepts. Automaton has 4008 states and 10650 transitions. Word has length 94 [2021-06-05 10:31:27,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:31:27,620 INFO L482 AbstractCegarLoop]: Abstraction has 4008 states and 10650 transitions. [2021-06-05 10:31:27,620 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:31:27,620 INFO L276 IsEmpty]: Start isEmpty. Operand 4008 states and 10650 transitions. [2021-06-05 10:31:27,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:31:27,623 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:31:27,623 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:31:27,623 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-06-05 10:31:27,623 INFO L430 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:31:27,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:31:27,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1720847629, now seen corresponding path program 32 times [2021-06-05 10:31:27,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:31:27,624 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001817049] [2021-06-05 10:31:27,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:31:27,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:31:28,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:31:28,250 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:31:28,250 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001817049] [2021-06-05 10:31:28,250 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001817049] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:31:28,251 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:31:28,251 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:31:28,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063636020] [2021-06-05 10:31:28,251 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:31:28,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:31:28,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:31:28,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:31:28,252 INFO L87 Difference]: Start difference. First operand 4008 states and 10650 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:31:29,379 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:31:29,559 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:31:29,738 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 10:31:29,956 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 10:31:30,175 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 10:31:30,429 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-06-05 10:31:30,607 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-06-05 10:31:30,744 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 10:31:30,888 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 10:31:31,146 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:31:31,287 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 10:31:31,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:31:31,295 INFO L93 Difference]: Finished difference Result 6812 states and 17094 transitions. [2021-06-05 10:31:31,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:31:31,295 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:31:31,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:31:31,300 INFO L225 Difference]: With dead ends: 6812 [2021-06-05 10:31:31,300 INFO L226 Difference]: Without dead ends: 6812 [2021-06-05 10:31:31,300 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 2878.3ms TimeCoverageRelationStatistics Valid=509, Invalid=1561, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 10:31:31,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6812 states. [2021-06-05 10:31:31,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6812 to 4016. [2021-06-05 10:31:31,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4016 states, 4014 states have (on average 2.658196312904833) internal successors, (10670), 4015 states have internal predecessors, (10670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:31:31,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4016 states to 4016 states and 10670 transitions. [2021-06-05 10:31:31,354 INFO L78 Accepts]: Start accepts. Automaton has 4016 states and 10670 transitions. Word has length 94 [2021-06-05 10:31:31,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:31:31,354 INFO L482 AbstractCegarLoop]: Abstraction has 4016 states and 10670 transitions. [2021-06-05 10:31:31,354 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:31:31,354 INFO L276 IsEmpty]: Start isEmpty. Operand 4016 states and 10670 transitions. [2021-06-05 10:31:31,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:31:31,357 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:31:31,357 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:31:31,357 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-06-05 10:31:31,357 INFO L430 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:31:31,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:31:31,358 INFO L82 PathProgramCache]: Analyzing trace with hash -805583913, now seen corresponding path program 33 times [2021-06-05 10:31:31,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:31:31,358 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403079646] [2021-06-05 10:31:31,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:31:31,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:31:31,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:31:31,916 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:31:31,916 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403079646] [2021-06-05 10:31:31,916 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403079646] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:31:31,916 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:31:31,916 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:31:31,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004506869] [2021-06-05 10:31:31,916 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:31:31,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:31:31,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:31:31,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:31:31,917 INFO L87 Difference]: Start difference. First operand 4016 states and 10670 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:31:33,060 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:31:33,257 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:31:33,445 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:31:33,653 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:31:33,837 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:31:34,073 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:31:34,371 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-06-05 10:31:34,515 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-06-05 10:31:34,653 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 10:31:34,797 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 10:31:35,056 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:31:35,201 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 10:31:35,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:31:35,209 INFO L93 Difference]: Finished difference Result 7086 states and 17621 transitions. [2021-06-05 10:31:35,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 10:31:35,209 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:31:35,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:31:35,215 INFO L225 Difference]: With dead ends: 7086 [2021-06-05 10:31:35,215 INFO L226 Difference]: Without dead ends: 7086 [2021-06-05 10:31:35,215 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 2984.6ms TimeCoverageRelationStatistics Valid=542, Invalid=1620, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 10:31:35,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7086 states. [2021-06-05 10:31:35,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7086 to 4014. [2021-06-05 10:31:35,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4014 states, 4012 states have (on average 2.6582751744765702) internal successors, (10665), 4013 states have internal predecessors, (10665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:31:35,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4014 states to 4014 states and 10665 transitions. [2021-06-05 10:31:35,269 INFO L78 Accepts]: Start accepts. Automaton has 4014 states and 10665 transitions. Word has length 94 [2021-06-05 10:31:35,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:31:35,269 INFO L482 AbstractCegarLoop]: Abstraction has 4014 states and 10665 transitions. [2021-06-05 10:31:35,269 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:31:35,269 INFO L276 IsEmpty]: Start isEmpty. Operand 4014 states and 10665 transitions. [2021-06-05 10:31:35,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:31:35,273 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:31:35,273 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:31:35,273 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-06-05 10:31:35,273 INFO L430 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:31:35,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:31:35,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1340836083, now seen corresponding path program 34 times [2021-06-05 10:31:35,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:31:35,273 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580367251] [2021-06-05 10:31:35,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:31:35,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:31:35,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:31:35,881 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:31:35,881 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580367251] [2021-06-05 10:31:35,881 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580367251] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:31:35,881 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:31:35,881 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:31:35,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188516871] [2021-06-05 10:31:35,881 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:31:35,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:31:35,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:31:35,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:31:35,882 INFO L87 Difference]: Start difference. First operand 4014 states and 10665 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:31:36,920 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-06-05 10:31:37,060 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:31:37,236 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:31:37,422 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:31:37,609 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:31:37,826 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:31:38,013 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:31:38,245 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:31:38,558 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-06-05 10:31:38,706 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-06-05 10:31:38,868 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 10:31:39,014 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 10:31:39,135 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-06-05 10:31:39,276 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:31:39,419 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 10:31:39,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:31:39,427 INFO L93 Difference]: Finished difference Result 7152 states and 17765 transitions. [2021-06-05 10:31:39,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 10:31:39,427 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:31:39,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:31:39,432 INFO L225 Difference]: With dead ends: 7152 [2021-06-05 10:31:39,432 INFO L226 Difference]: Without dead ends: 7152 [2021-06-05 10:31:39,432 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 3206.3ms TimeCoverageRelationStatistics Valid=574, Invalid=1682, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 10:31:39,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7152 states. [2021-06-05 10:31:39,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7152 to 4010. [2021-06-05 10:31:39,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4010 states, 4008 states have (on average 2.658433133732535) internal successors, (10655), 4009 states have internal predecessors, (10655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:31:39,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4010 states to 4010 states and 10655 transitions. [2021-06-05 10:31:39,485 INFO L78 Accepts]: Start accepts. Automaton has 4010 states and 10655 transitions. Word has length 94 [2021-06-05 10:31:39,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:31:39,485 INFO L482 AbstractCegarLoop]: Abstraction has 4010 states and 10655 transitions. [2021-06-05 10:31:39,485 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:31:39,486 INFO L276 IsEmpty]: Start isEmpty. Operand 4010 states and 10655 transitions. [2021-06-05 10:31:39,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:31:39,490 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:31:39,490 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:31:39,490 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-06-05 10:31:39,490 INFO L430 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:31:39,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:31:39,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1764516877, now seen corresponding path program 35 times [2021-06-05 10:31:39,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:31:39,491 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892306513] [2021-06-05 10:31:39,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:31:39,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:31:40,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:31:40,040 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:31:40,040 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892306513] [2021-06-05 10:31:40,040 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892306513] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:31:40,041 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:31:40,041 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:31:40,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208104958] [2021-06-05 10:31:40,041 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:31:40,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:31:40,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:31:40,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:31:40,041 INFO L87 Difference]: Start difference. First operand 4010 states and 10655 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:31:41,067 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-06-05 10:31:41,221 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:31:41,403 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:31:41,568 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:31:41,745 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:31:41,939 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:31:42,154 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:31:42,339 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:31:42,565 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:31:42,861 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-06-05 10:31:43,000 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-06-05 10:31:43,137 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 10:31:43,282 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 10:31:43,402 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-06-05 10:31:43,542 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:31:43,683 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 10:31:43,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:31:43,690 INFO L93 Difference]: Finished difference Result 6734 states and 16872 transitions. [2021-06-05 10:31:43,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 10:31:43,691 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:31:43,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:31:43,696 INFO L225 Difference]: With dead ends: 6734 [2021-06-05 10:31:43,697 INFO L226 Difference]: Without dead ends: 6734 [2021-06-05 10:31:43,697 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 3325.1ms TimeCoverageRelationStatistics Valid=605, Invalid=1747, Unknown=0, NotChecked=0, Total=2352 [2021-06-05 10:31:43,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6734 states. [2021-06-05 10:31:43,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6734 to 4010. [2021-06-05 10:31:43,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4010 states, 4008 states have (on average 2.658433133732535) internal successors, (10655), 4009 states have internal predecessors, (10655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:31:43,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4010 states to 4010 states and 10655 transitions. [2021-06-05 10:31:43,751 INFO L78 Accepts]: Start accepts. Automaton has 4010 states and 10655 transitions. Word has length 94 [2021-06-05 10:31:43,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:31:43,751 INFO L482 AbstractCegarLoop]: Abstraction has 4010 states and 10655 transitions. [2021-06-05 10:31:43,751 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:31:43,751 INFO L276 IsEmpty]: Start isEmpty. Operand 4010 states and 10655 transitions. [2021-06-05 10:31:43,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:31:43,755 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:31:43,755 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:31:43,755 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-06-05 10:31:43,755 INFO L430 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:31:43,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:31:43,755 INFO L82 PathProgramCache]: Analyzing trace with hash -2121112213, now seen corresponding path program 36 times [2021-06-05 10:31:43,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:31:43,755 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102261983] [2021-06-05 10:31:43,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:31:43,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:31:44,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:31:44,425 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:31:44,425 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102261983] [2021-06-05 10:31:44,425 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102261983] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:31:44,425 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:31:44,425 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:31:44,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750004344] [2021-06-05 10:31:44,425 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:31:44,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:31:44,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:31:44,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:31:44,426 INFO L87 Difference]: Start difference. First operand 4010 states and 10655 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:31:45,326 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:31:45,499 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:31:45,644 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 10:31:45,828 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:31:46,026 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 10:31:46,245 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 10:31:46,424 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 10:31:46,657 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 10:31:47,026 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:31:47,210 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:31:47,457 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 10:31:47,641 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:31:47,869 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 10:31:48,240 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 10:31:48,446 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 10:31:48,615 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 10:31:48,828 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2021-06-05 10:31:48,995 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-06-05 10:31:49,218 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2021-06-05 10:31:49,380 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-06-05 10:31:49,604 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2021-06-05 10:31:49,768 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:31:49,972 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 10:31:49,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:31:49,982 INFO L93 Difference]: Finished difference Result 8703 states and 21990 transitions. [2021-06-05 10:31:49,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 10:31:49,983 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:31:49,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:31:49,988 INFO L225 Difference]: With dead ends: 8703 [2021-06-05 10:31:49,988 INFO L226 Difference]: Without dead ends: 8703 [2021-06-05 10:31:49,989 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 5024.1ms TimeCoverageRelationStatistics Valid=882, Invalid=2198, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 10:31:49,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8703 states. [2021-06-05 10:31:50,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8703 to 4058. [2021-06-05 10:31:50,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4058 states, 4056 states have (on average 2.662475345167653) internal successors, (10799), 4057 states have internal predecessors, (10799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:31:50,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4058 states to 4058 states and 10799 transitions. [2021-06-05 10:31:50,048 INFO L78 Accepts]: Start accepts. Automaton has 4058 states and 10799 transitions. Word has length 94 [2021-06-05 10:31:50,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:31:50,049 INFO L482 AbstractCegarLoop]: Abstraction has 4058 states and 10799 transitions. [2021-06-05 10:31:50,049 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:31:50,049 INFO L276 IsEmpty]: Start isEmpty. Operand 4058 states and 10799 transitions. [2021-06-05 10:31:50,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:31:50,052 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:31:50,052 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:31:50,052 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-06-05 10:31:50,052 INFO L430 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:31:50,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:31:50,053 INFO L82 PathProgramCache]: Analyzing trace with hash -1083292315, now seen corresponding path program 37 times [2021-06-05 10:31:50,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:31:50,053 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620071757] [2021-06-05 10:31:50,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:31:50,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:31:50,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:31:50,622 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:31:50,622 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620071757] [2021-06-05 10:31:50,622 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620071757] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:31:50,622 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:31:50,622 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:31:50,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283959447] [2021-06-05 10:31:50,623 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:31:50,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:31:50,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:31:50,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:31:50,623 INFO L87 Difference]: Start difference. First operand 4058 states and 10799 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:31:51,582 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:31:51,754 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:31:51,901 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 10:31:52,087 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:31:52,300 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 10:31:52,519 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 10:31:52,895 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:31:53,077 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:31:53,275 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:31:53,493 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:31:53,683 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:31:53,919 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:31:54,312 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 10:31:54,499 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-06-05 10:31:54,659 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 10:31:54,853 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-06-05 10:31:55,037 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-06-05 10:31:55,240 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-06-05 10:31:55,421 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:31:55,575 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-06-05 10:31:55,768 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 10:31:55,932 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:31:56,120 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:31:56,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:31:56,131 INFO L93 Difference]: Finished difference Result 8972 states and 22450 transitions. [2021-06-05 10:31:56,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 10:31:56,131 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:31:56,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:31:56,137 INFO L225 Difference]: With dead ends: 8972 [2021-06-05 10:31:56,137 INFO L226 Difference]: Without dead ends: 8972 [2021-06-05 10:31:56,138 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 4921.0ms TimeCoverageRelationStatistics Valid=865, Invalid=2215, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 10:31:56,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8972 states. [2021-06-05 10:31:56,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8972 to 4046. [2021-06-05 10:31:56,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4046 states, 4044 states have (on average 2.661473788328388) internal successors, (10763), 4045 states have internal predecessors, (10763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:31:56,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4046 states to 4046 states and 10763 transitions. [2021-06-05 10:31:56,199 INFO L78 Accepts]: Start accepts. Automaton has 4046 states and 10763 transitions. Word has length 94 [2021-06-05 10:31:56,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:31:56,200 INFO L482 AbstractCegarLoop]: Abstraction has 4046 states and 10763 transitions. [2021-06-05 10:31:56,200 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:31:56,200 INFO L276 IsEmpty]: Start isEmpty. Operand 4046 states and 10763 transitions. [2021-06-05 10:31:56,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:31:56,203 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:31:56,204 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:31:56,204 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-06-05 10:31:56,204 INFO L430 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:31:56,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:31:56,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1246645679, now seen corresponding path program 38 times [2021-06-05 10:31:56,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:31:56,204 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379542167] [2021-06-05 10:31:56,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:31:56,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:31:56,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:31:56,823 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:31:56,823 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379542167] [2021-06-05 10:31:56,823 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379542167] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:31:56,823 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:31:56,823 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:31:56,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958158429] [2021-06-05 10:31:56,823 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:31:56,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:31:56,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:31:56,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:31:56,824 INFO L87 Difference]: Start difference. First operand 4046 states and 10763 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:31:57,749 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:31:57,923 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:31:58,072 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 10:31:58,258 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:31:58,740 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:31:58,890 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:31:59,072 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:31:59,272 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:31:59,489 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:31:59,679 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:31:59,912 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:32:00,326 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 10:32:00,508 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 10:32:00,666 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 10:32:00,840 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 10:32:01,007 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-06-05 10:32:01,188 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 10:32:01,351 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:32:01,505 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-06-05 10:32:01,678 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-06-05 10:32:01,843 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:32:02,010 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:32:02,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:32:02,020 INFO L93 Difference]: Finished difference Result 9016 states and 22548 transitions. [2021-06-05 10:32:02,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-05 10:32:02,020 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:32:02,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:32:02,027 INFO L225 Difference]: With dead ends: 9016 [2021-06-05 10:32:02,027 INFO L226 Difference]: Without dead ends: 9016 [2021-06-05 10:32:02,027 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 4575.7ms TimeCoverageRelationStatistics Valid=817, Invalid=2153, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 10:32:02,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9016 states. [2021-06-05 10:32:02,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9016 to 4022. [2021-06-05 10:32:02,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4022 states, 4020 states have (on average 2.659452736318408) internal successors, (10691), 4021 states have internal predecessors, (10691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:02,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4022 states to 4022 states and 10691 transitions. [2021-06-05 10:32:02,085 INFO L78 Accepts]: Start accepts. Automaton has 4022 states and 10691 transitions. Word has length 94 [2021-06-05 10:32:02,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:32:02,085 INFO L482 AbstractCegarLoop]: Abstraction has 4022 states and 10691 transitions. [2021-06-05 10:32:02,085 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:02,085 INFO L276 IsEmpty]: Start isEmpty. Operand 4022 states and 10691 transitions. [2021-06-05 10:32:02,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:32:02,088 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:32:02,088 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:32:02,088 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-06-05 10:32:02,089 INFO L430 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:32:02,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:32:02,089 INFO L82 PathProgramCache]: Analyzing trace with hash -855319471, now seen corresponding path program 39 times [2021-06-05 10:32:02,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:32:02,089 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335673842] [2021-06-05 10:32:02,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:32:02,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:32:02,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:32:02,662 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:32:02,662 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335673842] [2021-06-05 10:32:02,662 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335673842] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:32:02,662 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:32:02,662 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:32:02,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708245411] [2021-06-05 10:32:02,663 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:32:02,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:32:02,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:32:02,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:32:02,663 INFO L87 Difference]: Start difference. First operand 4022 states and 10691 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:03,557 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:32:03,724 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 10:32:04,077 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:32:04,235 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:32:04,388 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:32:04,571 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:32:04,759 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:32:04,973 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:32:05,158 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:32:05,381 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:32:05,730 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 10:32:05,916 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 10:32:06,083 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-06-05 10:32:06,228 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:32:06,384 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-06-05 10:32:06,547 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:32:06,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:32:06,554 INFO L93 Difference]: Finished difference Result 7620 states and 19216 transitions. [2021-06-05 10:32:06,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 10:32:06,555 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:32:06,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:32:06,560 INFO L225 Difference]: With dead ends: 7620 [2021-06-05 10:32:06,560 INFO L226 Difference]: Without dead ends: 7620 [2021-06-05 10:32:06,560 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 3509.3ms TimeCoverageRelationStatistics Valid=620, Invalid=1732, Unknown=0, NotChecked=0, Total=2352 [2021-06-05 10:32:06,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7620 states. [2021-06-05 10:32:06,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7620 to 4010. [2021-06-05 10:32:06,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4010 states, 4008 states have (on average 2.658433133732535) internal successors, (10655), 4009 states have internal predecessors, (10655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:06,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4010 states to 4010 states and 10655 transitions. [2021-06-05 10:32:06,618 INFO L78 Accepts]: Start accepts. Automaton has 4010 states and 10655 transitions. Word has length 94 [2021-06-05 10:32:06,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:32:06,618 INFO L482 AbstractCegarLoop]: Abstraction has 4010 states and 10655 transitions. [2021-06-05 10:32:06,618 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:06,618 INFO L276 IsEmpty]: Start isEmpty. Operand 4010 states and 10655 transitions. [2021-06-05 10:32:06,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:32:06,621 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:32:06,621 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:32:06,621 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-06-05 10:32:06,621 INFO L430 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:32:06,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:32:06,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1394406491, now seen corresponding path program 40 times [2021-06-05 10:32:06,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:32:06,622 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411783791] [2021-06-05 10:32:06,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:32:06,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:32:07,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:32:07,154 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:32:07,154 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411783791] [2021-06-05 10:32:07,155 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411783791] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:32:07,155 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:32:07,155 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:32:07,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914478553] [2021-06-05 10:32:07,155 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:32:07,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:32:07,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:32:07,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:32:07,155 INFO L87 Difference]: Start difference. First operand 4010 states and 10655 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:08,191 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-06-05 10:32:08,344 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:32:08,554 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:32:08,736 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 10:32:08,958 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 10:32:09,181 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 10:32:09,821 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-06-05 10:32:10,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:32:10,187 INFO L93 Difference]: Finished difference Result 6330 states and 16059 transitions. [2021-06-05 10:32:10,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:32:10,187 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:32:10,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:32:10,192 INFO L225 Difference]: With dead ends: 6330 [2021-06-05 10:32:10,192 INFO L226 Difference]: Without dead ends: 6330 [2021-06-05 10:32:10,193 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 2675.0ms TimeCoverageRelationStatistics Valid=494, Invalid=1576, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 10:32:10,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6330 states. [2021-06-05 10:32:10,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6330 to 4020. [2021-06-05 10:32:10,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4020 states, 4018 states have (on average 2.658038825286212) internal successors, (10680), 4019 states have internal predecessors, (10680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:10,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4020 states to 4020 states and 10680 transitions. [2021-06-05 10:32:10,242 INFO L78 Accepts]: Start accepts. Automaton has 4020 states and 10680 transitions. Word has length 94 [2021-06-05 10:32:10,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:32:10,242 INFO L482 AbstractCegarLoop]: Abstraction has 4020 states and 10680 transitions. [2021-06-05 10:32:10,242 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:10,242 INFO L276 IsEmpty]: Start isEmpty. Operand 4020 states and 10680 transitions. [2021-06-05 10:32:10,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:32:10,245 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:32:10,245 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:32:10,245 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-06-05 10:32:10,245 INFO L430 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:32:10,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:32:10,246 INFO L82 PathProgramCache]: Analyzing trace with hash 374129263, now seen corresponding path program 41 times [2021-06-05 10:32:10,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:32:10,246 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93289008] [2021-06-05 10:32:10,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:32:10,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:32:10,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:32:10,746 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:32:10,746 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93289008] [2021-06-05 10:32:10,746 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93289008] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:32:10,747 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:32:10,747 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:32:10,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672236734] [2021-06-05 10:32:10,747 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:32:10,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:32:10,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:32:10,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:32:10,747 INFO L87 Difference]: Start difference. First operand 4020 states and 10680 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:11,924 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:32:12,118 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:32:12,311 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:32:12,522 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:32:12,709 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:32:12,931 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:32:13,624 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-06-05 10:32:13,872 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-06-05 10:32:14,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:32:14,009 INFO L93 Difference]: Finished difference Result 6604 states and 16586 transitions. [2021-06-05 10:32:14,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 10:32:14,009 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:32:14,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:32:14,014 INFO L225 Difference]: With dead ends: 6604 [2021-06-05 10:32:14,014 INFO L226 Difference]: Without dead ends: 6604 [2021-06-05 10:32:14,014 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 2859.0ms TimeCoverageRelationStatistics Valid=527, Invalid=1635, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 10:32:14,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6604 states. [2021-06-05 10:32:14,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6604 to 4018. [2021-06-05 10:32:14,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4018 states, 4016 states have (on average 2.658117529880478) internal successors, (10675), 4017 states have internal predecessors, (10675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:14,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4018 states to 4018 states and 10675 transitions. [2021-06-05 10:32:14,067 INFO L78 Accepts]: Start accepts. Automaton has 4018 states and 10675 transitions. Word has length 94 [2021-06-05 10:32:14,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:32:14,067 INFO L482 AbstractCegarLoop]: Abstraction has 4018 states and 10675 transitions. [2021-06-05 10:32:14,067 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:14,067 INFO L276 IsEmpty]: Start isEmpty. Operand 4018 states and 10675 transitions. [2021-06-05 10:32:14,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:32:14,070 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:32:14,070 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:32:14,070 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-06-05 10:32:14,071 INFO L430 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:32:14,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:32:14,071 INFO L82 PathProgramCache]: Analyzing trace with hash -161122907, now seen corresponding path program 42 times [2021-06-05 10:32:14,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:32:14,071 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661241849] [2021-06-05 10:32:14,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:32:14,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:32:14,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:32:14,610 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:32:14,610 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661241849] [2021-06-05 10:32:14,610 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661241849] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:32:14,610 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:32:14,610 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:32:14,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93775596] [2021-06-05 10:32:14,611 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:32:14,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:32:14,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:32:14,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:32:14,611 INFO L87 Difference]: Start difference. First operand 4018 states and 10675 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:15,735 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:32:15,911 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:32:16,099 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:32:16,284 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:32:16,523 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:32:16,708 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:32:16,935 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:32:17,612 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-06-05 10:32:17,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:32:17,981 INFO L93 Difference]: Finished difference Result 6670 states and 16730 transitions. [2021-06-05 10:32:17,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 10:32:17,981 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:32:17,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:32:17,987 INFO L225 Difference]: With dead ends: 6670 [2021-06-05 10:32:17,987 INFO L226 Difference]: Without dead ends: 6670 [2021-06-05 10:32:17,987 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 3048.4ms TimeCoverageRelationStatistics Valid=559, Invalid=1697, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 10:32:17,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6670 states. [2021-06-05 10:32:18,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6670 to 4014. [2021-06-05 10:32:18,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4014 states, 4012 states have (on average 2.6582751744765702) internal successors, (10665), 4013 states have internal predecessors, (10665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:18,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4014 states to 4014 states and 10665 transitions. [2021-06-05 10:32:18,045 INFO L78 Accepts]: Start accepts. Automaton has 4014 states and 10665 transitions. Word has length 94 [2021-06-05 10:32:18,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:32:18,045 INFO L482 AbstractCegarLoop]: Abstraction has 4014 states and 10665 transitions. [2021-06-05 10:32:18,045 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:18,045 INFO L276 IsEmpty]: Start isEmpty. Operand 4014 states and 10665 transitions. [2021-06-05 10:32:18,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:32:18,048 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:32:18,048 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:32:18,049 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-06-05 10:32:18,049 INFO L430 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:32:18,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:32:18,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1350737243, now seen corresponding path program 43 times [2021-06-05 10:32:18,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:32:18,049 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485363625] [2021-06-05 10:32:18,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:32:18,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:32:18,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:32:18,612 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:32:18,612 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485363625] [2021-06-05 10:32:18,612 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485363625] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:32:18,612 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:32:18,612 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:32:18,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570379566] [2021-06-05 10:32:18,612 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:32:18,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:32:18,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:32:18,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:32:18,613 INFO L87 Difference]: Start difference. First operand 4014 states and 10665 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:19,613 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-06-05 10:32:19,776 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:32:19,944 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:32:20,096 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:32:20,281 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:32:20,481 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:32:20,703 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:32:20,889 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:32:21,126 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:32:21,816 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-06-05 10:32:21,940 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-06-05 10:32:22,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:32:22,199 INFO L93 Difference]: Finished difference Result 6736 states and 16874 transitions. [2021-06-05 10:32:22,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 10:32:22,199 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:32:22,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:32:22,204 INFO L225 Difference]: With dead ends: 6736 [2021-06-05 10:32:22,204 INFO L226 Difference]: Without dead ends: 6736 [2021-06-05 10:32:22,204 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 3222.4ms TimeCoverageRelationStatistics Valid=590, Invalid=1762, Unknown=0, NotChecked=0, Total=2352 [2021-06-05 10:32:22,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6736 states. [2021-06-05 10:32:22,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6736 to 4012. [2021-06-05 10:32:22,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4012 states, 4010 states have (on average 2.658354114713217) internal successors, (10660), 4011 states have internal predecessors, (10660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:22,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4012 states to 4012 states and 10660 transitions. [2021-06-05 10:32:22,253 INFO L78 Accepts]: Start accepts. Automaton has 4012 states and 10660 transitions. Word has length 94 [2021-06-05 10:32:22,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:32:22,253 INFO L482 AbstractCegarLoop]: Abstraction has 4012 states and 10660 transitions. [2021-06-05 10:32:22,253 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:22,253 INFO L276 IsEmpty]: Start isEmpty. Operand 4012 states and 10660 transitions. [2021-06-05 10:32:22,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:32:22,257 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:32:22,257 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:32:22,257 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-06-05 10:32:22,258 INFO L430 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:32:22,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:32:22,258 INFO L82 PathProgramCache]: Analyzing trace with hash 682289263, now seen corresponding path program 44 times [2021-06-05 10:32:22,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:32:22,258 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871176684] [2021-06-05 10:32:22,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:32:22,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:32:22,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:32:22,833 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:32:22,833 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871176684] [2021-06-05 10:32:22,833 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871176684] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:32:22,833 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:32:22,833 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:32:22,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630297617] [2021-06-05 10:32:22,833 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:32:22,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:32:22,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:32:22,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:32:22,833 INFO L87 Difference]: Start difference. First operand 4012 states and 10660 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:23,854 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-06-05 10:32:24,005 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:32:24,142 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:32:24,305 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:32:24,458 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:32:24,669 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:32:24,866 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:32:25,081 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:32:25,268 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:32:25,495 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:32:26,162 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-06-05 10:32:26,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:32:26,531 INFO L93 Difference]: Finished difference Result 6256 states and 15838 transitions. [2021-06-05 10:32:26,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 10:32:26,532 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:32:26,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:32:26,537 INFO L225 Difference]: With dead ends: 6256 [2021-06-05 10:32:26,537 INFO L226 Difference]: Without dead ends: 6256 [2021-06-05 10:32:26,538 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 3361.2ms TimeCoverageRelationStatistics Valid=620, Invalid=1830, Unknown=0, NotChecked=0, Total=2450 [2021-06-05 10:32:26,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6256 states. [2021-06-05 10:32:26,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6256 to 4012. [2021-06-05 10:32:26,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4012 states, 4010 states have (on average 2.658354114713217) internal successors, (10660), 4011 states have internal predecessors, (10660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:26,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4012 states to 4012 states and 10660 transitions. [2021-06-05 10:32:26,592 INFO L78 Accepts]: Start accepts. Automaton has 4012 states and 10660 transitions. Word has length 94 [2021-06-05 10:32:26,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:32:26,592 INFO L482 AbstractCegarLoop]: Abstraction has 4012 states and 10660 transitions. [2021-06-05 10:32:26,592 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:26,592 INFO L276 IsEmpty]: Start isEmpty. Operand 4012 states and 10660 transitions. [2021-06-05 10:32:26,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:32:26,596 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:32:26,596 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:32:26,596 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-06-05 10:32:26,596 INFO L430 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:32:26,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:32:26,596 INFO L82 PathProgramCache]: Analyzing trace with hash 52912303, now seen corresponding path program 45 times [2021-06-05 10:32:26,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:32:26,596 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798261405] [2021-06-05 10:32:26,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:32:26,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:32:27,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:32:27,236 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:32:27,236 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798261405] [2021-06-05 10:32:27,236 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798261405] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:32:27,236 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:32:27,236 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:32:27,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922679399] [2021-06-05 10:32:27,236 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:32:27,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:32:27,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:32:27,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:32:27,236 INFO L87 Difference]: Start difference. First operand 4012 states and 10660 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:28,093 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:32:28,225 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 10:32:28,393 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:32:28,540 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 10:32:28,734 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:32:28,935 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 10:32:29,153 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 10:32:29,334 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 10:32:29,568 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 10:32:29,897 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:32:30,086 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:32:30,286 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:32:30,537 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 10:32:30,726 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:32:30,957 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 10:32:31,310 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 10:32:31,512 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 10:32:31,653 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 10:32:31,866 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2021-06-05 10:32:32,017 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-06-05 10:32:32,235 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2021-06-05 10:32:32,381 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2021-06-05 10:32:32,589 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2021-06-05 10:32:32,751 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:32:32,955 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 10:32:32,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:32:32,965 INFO L93 Difference]: Finished difference Result 8029 states and 20342 transitions. [2021-06-05 10:32:32,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 10:32:32,966 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:32:32,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:32:32,971 INFO L225 Difference]: With dead ends: 8029 [2021-06-05 10:32:32,971 INFO L226 Difference]: Without dead ends: 8029 [2021-06-05 10:32:32,971 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 5175.4ms TimeCoverageRelationStatistics Valid=935, Invalid=2371, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 10:32:32,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8029 states. [2021-06-05 10:32:33,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8029 to 4072. [2021-06-05 10:32:33,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4072 states, 4070 states have (on average 2.6633906633906634) internal successors, (10840), 4071 states have internal predecessors, (10840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:33,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4072 states to 4072 states and 10840 transitions. [2021-06-05 10:32:33,031 INFO L78 Accepts]: Start accepts. Automaton has 4072 states and 10840 transitions. Word has length 94 [2021-06-05 10:32:33,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:32:33,031 INFO L482 AbstractCegarLoop]: Abstraction has 4072 states and 10840 transitions. [2021-06-05 10:32:33,032 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:33,032 INFO L276 IsEmpty]: Start isEmpty. Operand 4072 states and 10840 transitions. [2021-06-05 10:32:33,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:32:33,035 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:32:33,036 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:32:33,036 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-06-05 10:32:33,036 INFO L430 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:32:33,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:32:33,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1090732201, now seen corresponding path program 46 times [2021-06-05 10:32:33,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:32:33,036 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118283274] [2021-06-05 10:32:33,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:32:33,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:32:33,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:32:33,624 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:32:33,624 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118283274] [2021-06-05 10:32:33,624 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118283274] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:32:33,624 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:32:33,624 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:32:33,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268152381] [2021-06-05 10:32:33,625 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:32:33,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:32:33,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:32:33,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:32:33,625 INFO L87 Difference]: Start difference. First operand 4072 states and 10840 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:34,514 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:32:34,647 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 10:32:34,815 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:32:34,960 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 10:32:35,149 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:32:35,361 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 10:32:35,578 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 10:32:35,930 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:32:36,101 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:32:36,299 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:32:36,502 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:32:36,716 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:32:36,906 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:32:37,143 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:32:37,543 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 10:32:37,729 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-06-05 10:32:37,873 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 10:32:38,066 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-06-05 10:32:38,235 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-06-05 10:32:38,435 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-06-05 10:32:38,612 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:32:38,749 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2021-06-05 10:32:38,939 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 10:32:39,090 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:32:39,276 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:32:39,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:32:39,287 INFO L93 Difference]: Finished difference Result 8298 states and 20802 transitions. [2021-06-05 10:32:39,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 10:32:39,287 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:32:39,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:32:39,292 INFO L225 Difference]: With dead ends: 8298 [2021-06-05 10:32:39,292 INFO L226 Difference]: Without dead ends: 8298 [2021-06-05 10:32:39,293 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 5045.8ms TimeCoverageRelationStatistics Valid=917, Invalid=2389, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 10:32:39,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8298 states. [2021-06-05 10:32:39,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8298 to 4060. [2021-06-05 10:32:39,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4060 states, 4058 states have (on average 2.6623952686052244) internal successors, (10804), 4059 states have internal predecessors, (10804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:39,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4060 states to 4060 states and 10804 transitions. [2021-06-05 10:32:39,359 INFO L78 Accepts]: Start accepts. Automaton has 4060 states and 10804 transitions. Word has length 94 [2021-06-05 10:32:39,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:32:39,359 INFO L482 AbstractCegarLoop]: Abstraction has 4060 states and 10804 transitions. [2021-06-05 10:32:39,359 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:39,359 INFO L276 IsEmpty]: Start isEmpty. Operand 4060 states and 10804 transitions. [2021-06-05 10:32:39,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:32:39,362 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:32:39,362 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:32:39,362 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-06-05 10:32:39,362 INFO L430 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:32:39,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:32:39,363 INFO L82 PathProgramCache]: Analyzing trace with hash -874297101, now seen corresponding path program 47 times [2021-06-05 10:32:39,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:32:39,363 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302239950] [2021-06-05 10:32:39,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:32:39,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:32:39,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:32:39,938 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:32:39,938 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302239950] [2021-06-05 10:32:39,938 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302239950] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:32:39,938 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:32:39,938 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:32:39,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112822661] [2021-06-05 10:32:39,938 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:32:39,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:32:39,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:32:39,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:32:39,939 INFO L87 Difference]: Start difference. First operand 4060 states and 10804 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:40,686 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-06-05 10:32:40,841 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:32:40,977 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 10:32:41,146 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:32:41,293 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 10:32:41,487 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:32:41,923 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:32:42,093 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:32:42,247 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:32:42,444 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:32:42,648 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:32:42,861 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:32:43,051 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:32:43,282 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:32:43,701 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 10:32:43,869 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 10:32:44,012 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 10:32:44,185 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 10:32:44,337 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-06-05 10:32:44,522 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 10:32:44,686 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:32:44,825 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2021-06-05 10:32:44,998 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-06-05 10:32:45,148 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:32:45,316 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:32:45,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:32:45,326 INFO L93 Difference]: Finished difference Result 8342 states and 20900 transitions. [2021-06-05 10:32:45,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 10:32:45,327 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:32:45,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:32:45,331 INFO L225 Difference]: With dead ends: 8342 [2021-06-05 10:32:45,332 INFO L226 Difference]: Without dead ends: 8342 [2021-06-05 10:32:45,332 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 4735.8ms TimeCoverageRelationStatistics Valid=868, Invalid=2324, Unknown=0, NotChecked=0, Total=3192 [2021-06-05 10:32:45,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8342 states. [2021-06-05 10:32:45,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8342 to 4036. [2021-06-05 10:32:45,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4036 states, 4034 states have (on average 2.66038671294001) internal successors, (10732), 4035 states have internal predecessors, (10732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:45,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4036 states to 4036 states and 10732 transitions. [2021-06-05 10:32:45,386 INFO L78 Accepts]: Start accepts. Automaton has 4036 states and 10732 transitions. Word has length 94 [2021-06-05 10:32:45,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:32:45,386 INFO L482 AbstractCegarLoop]: Abstraction has 4036 states and 10732 transitions. [2021-06-05 10:32:45,386 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:45,386 INFO L276 IsEmpty]: Start isEmpty. Operand 4036 states and 10732 transitions. [2021-06-05 10:32:45,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:32:45,389 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:32:45,390 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:32:45,390 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-06-05 10:32:45,390 INFO L430 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:32:45,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:32:45,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1318705045, now seen corresponding path program 48 times [2021-06-05 10:32:45,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:32:45,390 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871443897] [2021-06-05 10:32:45,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:32:45,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:32:45,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:32:45,978 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:32:45,978 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871443897] [2021-06-05 10:32:45,979 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871443897] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:32:45,979 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:32:45,979 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:32:45,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676546564] [2021-06-05 10:32:45,979 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:32:45,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:32:45,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:32:45,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:32:45,980 INFO L87 Difference]: Start difference. First operand 4036 states and 10732 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:46,840 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:32:46,972 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 10:32:47,138 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 10:32:47,559 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:32:47,694 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:32:47,857 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:32:48,012 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:32:48,211 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:32:48,408 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:32:48,642 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:32:48,845 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:32:49,073 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:32:49,448 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 10:32:49,598 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 10:32:49,742 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 10:32:49,900 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 10:32:50,054 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-06-05 10:32:50,220 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-06-05 10:32:50,367 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:32:50,507 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2021-06-05 10:32:50,663 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-06-05 10:32:50,811 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:32:50,963 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:32:50,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:32:50,973 INFO L93 Difference]: Finished difference Result 8397 states and 21021 transitions. [2021-06-05 10:32:50,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 10:32:50,973 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:32:50,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:32:50,979 INFO L225 Difference]: With dead ends: 8397 [2021-06-05 10:32:50,979 INFO L226 Difference]: Without dead ends: 8397 [2021-06-05 10:32:50,980 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 4492.2ms TimeCoverageRelationStatistics Valid=821, Invalid=2259, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 10:32:50,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8397 states. [2021-06-05 10:32:51,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8397 to 4024. [2021-06-05 10:32:51,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4024 states, 4022 states have (on average 2.659373446046743) internal successors, (10696), 4023 states have internal predecessors, (10696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:51,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4024 states to 4024 states and 10696 transitions. [2021-06-05 10:32:51,041 INFO L78 Accepts]: Start accepts. Automaton has 4024 states and 10696 transitions. Word has length 94 [2021-06-05 10:32:51,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:32:51,041 INFO L482 AbstractCegarLoop]: Abstraction has 4024 states and 10696 transitions. [2021-06-05 10:32:51,042 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:51,042 INFO L276 IsEmpty]: Start isEmpty. Operand 4024 states and 10696 transitions. [2021-06-05 10:32:51,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:32:51,045 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:32:51,045 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:32:51,045 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-06-05 10:32:51,045 INFO L430 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:32:51,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:32:51,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1722381467, now seen corresponding path program 49 times [2021-06-05 10:32:51,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:32:51,046 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813383006] [2021-06-05 10:32:51,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:32:51,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:32:51,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:32:51,651 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:32:51,651 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813383006] [2021-06-05 10:32:51,651 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813383006] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:32:51,651 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:32:51,651 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:32:51,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685877792] [2021-06-05 10:32:51,651 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:32:51,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:32:51,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:32:51,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:32:51,652 INFO L87 Difference]: Start difference. First operand 4024 states and 10696 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:52,552 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 10:32:52,936 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-06-05 10:32:53,082 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:32:53,220 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:32:53,387 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:32:53,542 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:32:53,735 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:32:53,932 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:32:54,187 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:32:54,374 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:32:54,603 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:32:54,967 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 10:32:55,110 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 10:32:55,264 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-06-05 10:32:55,396 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-06-05 10:32:55,536 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2021-06-05 10:32:55,685 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:32:55,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:32:55,692 INFO L93 Difference]: Finished difference Result 6854 states and 17318 transitions. [2021-06-05 10:32:55,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 10:32:55,693 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:32:55,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:32:55,699 INFO L225 Difference]: With dead ends: 6854 [2021-06-05 10:32:55,699 INFO L226 Difference]: Without dead ends: 6854 [2021-06-05 10:32:55,699 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 3568.0ms TimeCoverageRelationStatistics Valid=635, Invalid=1815, Unknown=0, NotChecked=0, Total=2450 [2021-06-05 10:32:55,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6854 states. [2021-06-05 10:32:55,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6854 to 4012. [2021-06-05 10:32:55,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4012 states, 4010 states have (on average 2.658354114713217) internal successors, (10660), 4011 states have internal predecessors, (10660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:55,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4012 states to 4012 states and 10660 transitions. [2021-06-05 10:32:55,755 INFO L78 Accepts]: Start accepts. Automaton has 4012 states and 10660 transitions. Word has length 94 [2021-06-05 10:32:55,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:32:55,755 INFO L482 AbstractCegarLoop]: Abstraction has 4012 states and 10660 transitions. [2021-06-05 10:32:55,756 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:55,756 INFO L276 IsEmpty]: Start isEmpty. Operand 4012 states and 10660 transitions. [2021-06-05 10:32:55,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:32:55,759 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:32:55,759 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:32:55,759 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-06-05 10:32:55,759 INFO L430 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:32:55,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:32:55,759 INFO L82 PathProgramCache]: Analyzing trace with hash 780592243, now seen corresponding path program 50 times [2021-06-05 10:32:55,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:32:55,759 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244344735] [2021-06-05 10:32:55,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:32:55,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:32:56,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:32:56,061 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:32:56,061 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244344735] [2021-06-05 10:32:56,061 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244344735] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:32:56,061 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:32:56,061 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 10:32:56,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362625790] [2021-06-05 10:32:56,062 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 10:32:56,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:32:56,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 10:32:56,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-06-05 10:32:56,062 INFO L87 Difference]: Start difference. First operand 4012 states and 10660 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:57,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:32:57,116 INFO L93 Difference]: Finished difference Result 4903 states and 12400 transitions. [2021-06-05 10:32:57,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 10:32:57,116 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:32:57,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:32:57,120 INFO L225 Difference]: With dead ends: 4903 [2021-06-05 10:32:57,120 INFO L226 Difference]: Without dead ends: 4903 [2021-06-05 10:32:57,120 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 918.4ms TimeCoverageRelationStatistics Valid=310, Invalid=880, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 10:32:57,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4903 states. [2021-06-05 10:32:57,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4903 to 4056. [2021-06-05 10:32:57,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4056 states, 4054 states have (on average 2.6556487419832266) internal successors, (10766), 4055 states have internal predecessors, (10766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:57,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4056 states to 4056 states and 10766 transitions. [2021-06-05 10:32:57,183 INFO L78 Accepts]: Start accepts. Automaton has 4056 states and 10766 transitions. Word has length 94 [2021-06-05 10:32:57,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:32:57,183 INFO L482 AbstractCegarLoop]: Abstraction has 4056 states and 10766 transitions. [2021-06-05 10:32:57,183 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:57,183 INFO L276 IsEmpty]: Start isEmpty. Operand 4056 states and 10766 transitions. [2021-06-05 10:32:57,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:32:57,188 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:32:57,188 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:32:57,188 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-06-05 10:32:57,188 INFO L430 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:32:57,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:32:57,188 INFO L82 PathProgramCache]: Analyzing trace with hash 1117322871, now seen corresponding path program 51 times [2021-06-05 10:32:57,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:32:57,188 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706671041] [2021-06-05 10:32:57,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:32:57,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:32:57,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:32:57,690 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:32:57,690 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706671041] [2021-06-05 10:32:57,691 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706671041] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:32:57,691 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:32:57,691 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:32:57,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297021873] [2021-06-05 10:32:57,691 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:32:57,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:32:57,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:32:57,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:32:57,691 INFO L87 Difference]: Start difference. First operand 4056 states and 10766 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:32:58,527 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-06-05 10:32:58,683 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 10:32:59,047 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:32:59,224 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 10:32:59,443 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 10:32:59,657 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 10:32:59,913 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-06-05 10:33:00,068 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2021-06-05 10:33:00,225 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 10:33:00,391 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 10:33:00,530 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:33:00,689 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:33:00,850 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:33:00,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:33:00,858 INFO L93 Difference]: Finished difference Result 6674 states and 17084 transitions. [2021-06-05 10:33:00,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:33:00,858 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:33:00,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:33:00,864 INFO L225 Difference]: With dead ends: 6674 [2021-06-05 10:33:00,864 INFO L226 Difference]: Without dead ends: 6674 [2021-06-05 10:33:00,864 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 2875.0ms TimeCoverageRelationStatistics Valid=539, Invalid=1531, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 10:33:00,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6674 states. [2021-06-05 10:33:00,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6674 to 4260. [2021-06-05 10:33:00,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4260 states, 4258 states have (on average 2.6707374354156883) internal successors, (11372), 4259 states have internal predecessors, (11372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:00,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4260 states to 4260 states and 11372 transitions. [2021-06-05 10:33:00,919 INFO L78 Accepts]: Start accepts. Automaton has 4260 states and 11372 transitions. Word has length 94 [2021-06-05 10:33:00,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:33:00,919 INFO L482 AbstractCegarLoop]: Abstraction has 4260 states and 11372 transitions. [2021-06-05 10:33:00,919 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:00,919 INFO L276 IsEmpty]: Start isEmpty. Operand 4260 states and 11372 transitions. [2021-06-05 10:33:00,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:33:00,923 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:33:00,923 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:33:00,923 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-06-05 10:33:00,923 INFO L430 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:33:00,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:33:00,923 INFO L82 PathProgramCache]: Analyzing trace with hash 982503065, now seen corresponding path program 52 times [2021-06-05 10:33:00,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:33:00,923 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320350340] [2021-06-05 10:33:00,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:33:00,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:33:01,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:33:01,430 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:33:01,430 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320350340] [2021-06-05 10:33:01,431 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320350340] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:33:01,431 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:33:01,431 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:33:01,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153094753] [2021-06-05 10:33:01,431 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:33:01,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:33:01,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:33:01,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:33:01,431 INFO L87 Difference]: Start difference. First operand 4260 states and 11372 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:02,312 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-06-05 10:33:02,469 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 10:33:02,687 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 10:33:03,093 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 10:33:03,295 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 10:33:03,517 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 10:33:03,830 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:33:04,009 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 10:33:04,190 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:33:04,381 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 10:33:04,550 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 10:33:04,751 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-06-05 10:33:04,936 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2021-06-05 10:33:04,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:33:04,943 INFO L93 Difference]: Finished difference Result 7648 states and 19455 transitions. [2021-06-05 10:33:04,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:33:04,943 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:33:04,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:33:04,948 INFO L225 Difference]: With dead ends: 7648 [2021-06-05 10:33:04,948 INFO L226 Difference]: Without dead ends: 7648 [2021-06-05 10:33:04,948 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 3108.0ms TimeCoverageRelationStatistics Valid=554, Invalid=1516, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 10:33:04,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7648 states. [2021-06-05 10:33:04,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7648 to 4296. [2021-06-05 10:33:05,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4296 states, 4294 states have (on average 2.673497904052166) internal successors, (11480), 4295 states have internal predecessors, (11480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:05,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4296 states to 4296 states and 11480 transitions. [2021-06-05 10:33:05,008 INFO L78 Accepts]: Start accepts. Automaton has 4296 states and 11480 transitions. Word has length 94 [2021-06-05 10:33:05,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:33:05,008 INFO L482 AbstractCegarLoop]: Abstraction has 4296 states and 11480 transitions. [2021-06-05 10:33:05,008 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:05,008 INFO L276 IsEmpty]: Start isEmpty. Operand 4296 states and 11480 transitions. [2021-06-05 10:33:05,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:33:05,012 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:33:05,012 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:33:05,012 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-06-05 10:33:05,012 INFO L430 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:33:05,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:33:05,012 INFO L82 PathProgramCache]: Analyzing trace with hash 692397687, now seen corresponding path program 53 times [2021-06-05 10:33:05,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:33:05,013 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442716032] [2021-06-05 10:33:05,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:33:05,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:33:05,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:33:05,524 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:33:05,524 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442716032] [2021-06-05 10:33:05,525 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442716032] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:33:05,525 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:33:05,525 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:33:05,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822817729] [2021-06-05 10:33:05,525 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:33:05,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:33:05,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:33:05,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:33:05,525 INFO L87 Difference]: Start difference. First operand 4296 states and 11480 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:06,398 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-06-05 10:33:06,555 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 10:33:06,770 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 10:33:06,986 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-06-05 10:33:07,211 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-06-05 10:33:07,606 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 10:33:07,809 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 10:33:08,137 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-06-05 10:33:08,341 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-06-05 10:33:08,556 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2021-06-05 10:33:08,763 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2021-06-05 10:33:08,972 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 10:33:08,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:33:08,980 INFO L93 Difference]: Finished difference Result 7336 states and 18871 transitions. [2021-06-05 10:33:08,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-05 10:33:08,980 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:33:08,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:33:08,986 INFO L225 Difference]: With dead ends: 7336 [2021-06-05 10:33:08,986 INFO L226 Difference]: Without dead ends: 7336 [2021-06-05 10:33:08,987 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 3058.0ms TimeCoverageRelationStatistics Valid=536, Invalid=1444, Unknown=0, NotChecked=0, Total=1980 [2021-06-05 10:33:08,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7336 states. [2021-06-05 10:33:09,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7336 to 4260. [2021-06-05 10:33:09,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4260 states, 4258 states have (on average 2.6707374354156883) internal successors, (11372), 4259 states have internal predecessors, (11372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:09,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4260 states to 4260 states and 11372 transitions. [2021-06-05 10:33:09,052 INFO L78 Accepts]: Start accepts. Automaton has 4260 states and 11372 transitions. Word has length 94 [2021-06-05 10:33:09,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:33:09,052 INFO L482 AbstractCegarLoop]: Abstraction has 4260 states and 11372 transitions. [2021-06-05 10:33:09,052 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:09,052 INFO L276 IsEmpty]: Start isEmpty. Operand 4260 states and 11372 transitions. [2021-06-05 10:33:09,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:33:09,055 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:33:09,056 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:33:09,056 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-06-05 10:33:09,056 INFO L430 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:33:09,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:33:09,056 INFO L82 PathProgramCache]: Analyzing trace with hash 398173023, now seen corresponding path program 54 times [2021-06-05 10:33:09,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:33:09,056 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168589112] [2021-06-05 10:33:09,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:33:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:33:09,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:33:09,538 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:33:09,539 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168589112] [2021-06-05 10:33:09,539 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168589112] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:33:09,539 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:33:09,539 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:33:09,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901732056] [2021-06-05 10:33:09,539 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:33:09,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:33:09,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:33:09,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:33:09,539 INFO L87 Difference]: Start difference. First operand 4260 states and 11372 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:10,394 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-06-05 10:33:10,708 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-06-05 10:33:10,856 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2021-06-05 10:33:11,045 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 10:33:11,256 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 10:33:11,478 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 10:33:11,734 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-06-05 10:33:11,879 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:33:12,024 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-06-05 10:33:12,175 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-06-05 10:33:12,302 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-06-05 10:33:12,449 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 10:33:12,598 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 10:33:12,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:33:12,622 INFO L93 Difference]: Finished difference Result 7114 states and 18017 transitions. [2021-06-05 10:33:12,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:33:12,622 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:33:12,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:33:12,628 INFO L225 Difference]: With dead ends: 7114 [2021-06-05 10:33:12,629 INFO L226 Difference]: Without dead ends: 7114 [2021-06-05 10:33:12,629 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2780.6ms TimeCoverageRelationStatistics Valid=524, Invalid=1546, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 10:33:12,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7114 states. [2021-06-05 10:33:12,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7114 to 4264. [2021-06-05 10:33:12,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4264 states, 4262 states have (on average 2.670577193805725) internal successors, (11382), 4263 states have internal predecessors, (11382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:12,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4264 states to 4264 states and 11382 transitions. [2021-06-05 10:33:12,690 INFO L78 Accepts]: Start accepts. Automaton has 4264 states and 11382 transitions. Word has length 94 [2021-06-05 10:33:12,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:33:12,690 INFO L482 AbstractCegarLoop]: Abstraction has 4264 states and 11382 transitions. [2021-06-05 10:33:12,690 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:12,690 INFO L276 IsEmpty]: Start isEmpty. Operand 4264 states and 11382 transitions. [2021-06-05 10:33:12,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:33:12,694 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:33:12,694 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:33:12,694 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-06-05 10:33:12,694 INFO L430 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:33:12,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:33:12,694 INFO L82 PathProgramCache]: Analyzing trace with hash 338504439, now seen corresponding path program 55 times [2021-06-05 10:33:12,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:33:12,695 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378411303] [2021-06-05 10:33:12,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:33:12,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:33:13,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:33:13,297 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:33:13,297 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378411303] [2021-06-05 10:33:13,297 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378411303] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:33:13,297 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:33:13,297 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:33:13,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493534425] [2021-06-05 10:33:13,297 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:33:13,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:33:13,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:33:13,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:33:13,297 INFO L87 Difference]: Start difference. First operand 4264 states and 11382 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:14,120 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-06-05 10:33:14,434 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-06-05 10:33:14,592 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:33:14,767 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 10:33:14,980 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 10:33:15,203 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 10:33:15,498 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-06-05 10:33:15,641 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:33:15,786 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-06-05 10:33:15,939 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-06-05 10:33:16,067 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-06-05 10:33:16,215 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 10:33:16,363 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 10:33:16,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:33:16,371 INFO L93 Difference]: Finished difference Result 7198 states and 18130 transitions. [2021-06-05 10:33:16,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:33:16,371 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:33:16,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:33:16,378 INFO L225 Difference]: With dead ends: 7198 [2021-06-05 10:33:16,378 INFO L226 Difference]: Without dead ends: 7198 [2021-06-05 10:33:16,379 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2887.5ms TimeCoverageRelationStatistics Valid=524, Invalid=1546, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 10:33:16,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7198 states. [2021-06-05 10:33:16,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7198 to 4266. [2021-06-05 10:33:16,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4266 states, 4264 states have (on average 2.670497185741088) internal successors, (11387), 4265 states have internal predecessors, (11387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:16,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4266 states to 4266 states and 11387 transitions. [2021-06-05 10:33:16,438 INFO L78 Accepts]: Start accepts. Automaton has 4266 states and 11387 transitions. Word has length 94 [2021-06-05 10:33:16,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:33:16,438 INFO L482 AbstractCegarLoop]: Abstraction has 4266 states and 11387 transitions. [2021-06-05 10:33:16,438 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:16,438 INFO L276 IsEmpty]: Start isEmpty. Operand 4266 states and 11387 transitions. [2021-06-05 10:33:16,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:33:16,442 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:33:16,442 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:33:16,442 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-06-05 10:33:16,442 INFO L430 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:33:16,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:33:16,442 INFO L82 PathProgramCache]: Analyzing trace with hash 2019518185, now seen corresponding path program 56 times [2021-06-05 10:33:16,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:33:16,442 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5376694] [2021-06-05 10:33:16,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:33:16,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:33:16,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:33:16,956 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:33:16,956 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5376694] [2021-06-05 10:33:16,956 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5376694] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:33:16,956 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:33:16,956 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:33:16,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228230619] [2021-06-05 10:33:16,956 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:33:16,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:33:16,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:33:16,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:33:16,956 INFO L87 Difference]: Start difference. First operand 4266 states and 11387 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:17,805 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-06-05 10:33:18,130 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-06-05 10:33:18,287 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:33:18,481 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-06-05 10:33:18,682 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2021-06-05 10:33:18,863 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 10:33:19,078 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:33:19,369 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-06-05 10:33:19,519 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:33:19,662 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-06-05 10:33:19,814 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-06-05 10:33:19,940 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-06-05 10:33:20,085 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 10:33:20,234 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 10:33:20,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:33:20,242 INFO L93 Difference]: Finished difference Result 6996 states and 17726 transitions. [2021-06-05 10:33:20,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 10:33:20,242 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:33:20,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:33:20,249 INFO L225 Difference]: With dead ends: 6996 [2021-06-05 10:33:20,249 INFO L226 Difference]: Without dead ends: 6996 [2021-06-05 10:33:20,249 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 2968.6ms TimeCoverageRelationStatistics Valid=557, Invalid=1605, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 10:33:20,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6996 states. [2021-06-05 10:33:20,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6996 to 4264. [2021-06-05 10:33:20,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4264 states, 4262 states have (on average 2.670577193805725) internal successors, (11382), 4263 states have internal predecessors, (11382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:20,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4264 states to 4264 states and 11382 transitions. [2021-06-05 10:33:20,308 INFO L78 Accepts]: Start accepts. Automaton has 4264 states and 11382 transitions. Word has length 94 [2021-06-05 10:33:20,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:33:20,308 INFO L482 AbstractCegarLoop]: Abstraction has 4264 states and 11382 transitions. [2021-06-05 10:33:20,309 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:20,309 INFO L276 IsEmpty]: Start isEmpty. Operand 4264 states and 11382 transitions. [2021-06-05 10:33:20,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:33:20,312 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:33:20,312 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:33:20,312 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-06-05 10:33:20,312 INFO L430 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:33:20,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:33:20,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1815885175, now seen corresponding path program 57 times [2021-06-05 10:33:20,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:33:20,313 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420149663] [2021-06-05 10:33:20,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:33:20,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:33:20,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:33:20,821 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:33:20,821 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420149663] [2021-06-05 10:33:20,821 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420149663] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:33:20,821 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:33:20,821 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:33:20,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388940073] [2021-06-05 10:33:20,821 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:33:20,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:33:20,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:33:20,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:33:20,822 INFO L87 Difference]: Start difference. First operand 4264 states and 11382 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:21,661 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-06-05 10:33:21,848 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 10:33:22,027 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 10:33:22,416 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 10:33:22,616 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 10:33:22,824 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 10:33:23,140 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:33:23,336 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 10:33:23,517 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:33:23,706 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 10:33:23,875 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 10:33:24,056 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-06-05 10:33:24,241 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2021-06-05 10:33:24,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:33:24,248 INFO L93 Difference]: Finished difference Result 8594 states and 21773 transitions. [2021-06-05 10:33:24,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:33:24,248 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:33:24,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:33:24,253 INFO L225 Difference]: With dead ends: 8594 [2021-06-05 10:33:24,254 INFO L226 Difference]: Without dead ends: 8594 [2021-06-05 10:33:24,254 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 3071.7ms TimeCoverageRelationStatistics Valid=554, Invalid=1516, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 10:33:24,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8594 states. [2021-06-05 10:33:24,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8594 to 4312. [2021-06-05 10:33:24,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4312 states, 4310 states have (on average 2.674245939675174) internal successors, (11526), 4311 states have internal predecessors, (11526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:24,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4312 states to 4312 states and 11526 transitions. [2021-06-05 10:33:24,321 INFO L78 Accepts]: Start accepts. Automaton has 4312 states and 11526 transitions. Word has length 94 [2021-06-05 10:33:24,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:33:24,321 INFO L482 AbstractCegarLoop]: Abstraction has 4312 states and 11526 transitions. [2021-06-05 10:33:24,321 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:24,321 INFO L276 IsEmpty]: Start isEmpty. Operand 4312 states and 11526 transitions. [2021-06-05 10:33:24,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:33:24,324 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:33:24,324 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:33:24,324 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-06-05 10:33:24,324 INFO L430 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:33:24,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:33:24,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1525779797, now seen corresponding path program 58 times [2021-06-05 10:33:24,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:33:24,325 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756050399] [2021-06-05 10:33:24,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:33:24,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:33:24,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:33:24,939 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:33:24,939 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756050399] [2021-06-05 10:33:24,939 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756050399] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:33:24,939 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:33:24,939 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:33:24,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063519227] [2021-06-05 10:33:24,939 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:33:24,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:33:24,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:33:24,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:33:24,940 INFO L87 Difference]: Start difference. First operand 4312 states and 11526 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:25,805 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-06-05 10:33:26,008 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 10:33:26,190 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 10:33:26,410 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-06-05 10:33:26,635 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-06-05 10:33:27,031 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 10:33:27,236 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 10:33:27,579 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-06-05 10:33:27,783 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-06-05 10:33:27,998 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2021-06-05 10:33:28,205 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2021-06-05 10:33:28,416 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 10:33:28,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:33:28,423 INFO L93 Difference]: Finished difference Result 9268 states and 23569 transitions. [2021-06-05 10:33:28,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-05 10:33:28,424 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:33:28,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:33:28,432 INFO L225 Difference]: With dead ends: 9268 [2021-06-05 10:33:28,432 INFO L226 Difference]: Without dead ends: 9268 [2021-06-05 10:33:28,433 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 3175.8ms TimeCoverageRelationStatistics Valid=536, Invalid=1444, Unknown=0, NotChecked=0, Total=1980 [2021-06-05 10:33:28,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9268 states. [2021-06-05 10:33:28,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9268 to 4276. [2021-06-05 10:33:28,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4274 states have (on average 2.6715021057557324) internal successors, (11418), 4275 states have internal predecessors, (11418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:28,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 11418 transitions. [2021-06-05 10:33:28,517 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 11418 transitions. Word has length 94 [2021-06-05 10:33:28,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:33:28,517 INFO L482 AbstractCegarLoop]: Abstraction has 4276 states and 11418 transitions. [2021-06-05 10:33:28,518 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:28,518 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 11418 transitions. [2021-06-05 10:33:28,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:33:28,521 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:33:28,522 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:33:28,522 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-06-05 10:33:28,522 INFO L430 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:33:28,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:33:28,522 INFO L82 PathProgramCache]: Analyzing trace with hash -371436355, now seen corresponding path program 59 times [2021-06-05 10:33:28,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:33:28,523 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223822128] [2021-06-05 10:33:28,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:33:28,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:33:28,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:33:28,998 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:33:28,998 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223822128] [2021-06-05 10:33:28,998 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223822128] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:33:28,999 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:33:28,999 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:33:28,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654986364] [2021-06-05 10:33:28,999 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:33:28,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:33:28,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:33:28,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:33:28,999 INFO L87 Difference]: Start difference. First operand 4276 states and 11418 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:29,823 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-06-05 10:33:30,002 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 10:33:30,331 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:33:30,501 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 10:33:30,707 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 10:33:30,920 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 10:33:31,251 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-06-05 10:33:31,416 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2021-06-05 10:33:31,582 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 10:33:31,757 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 10:33:31,905 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:33:32,074 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:33:32,245 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:33:32,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:33:32,255 INFO L93 Difference]: Finished difference Result 8218 states and 20781 transitions. [2021-06-05 10:33:32,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:33:32,256 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:33:32,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:33:32,261 INFO L225 Difference]: With dead ends: 8218 [2021-06-05 10:33:32,261 INFO L226 Difference]: Without dead ends: 8218 [2021-06-05 10:33:32,262 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 2956.4ms TimeCoverageRelationStatistics Valid=539, Invalid=1531, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 10:33:32,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8218 states. [2021-06-05 10:33:32,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8218 to 4278. [2021-06-05 10:33:32,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4278 states, 4276 states have (on average 2.671421889616464) internal successors, (11423), 4277 states have internal predecessors, (11423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:32,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4278 states to 4278 states and 11423 transitions. [2021-06-05 10:33:32,324 INFO L78 Accepts]: Start accepts. Automaton has 4278 states and 11423 transitions. Word has length 94 [2021-06-05 10:33:32,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:33:32,325 INFO L482 AbstractCegarLoop]: Abstraction has 4278 states and 11423 transitions. [2021-06-05 10:33:32,325 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:32,325 INFO L276 IsEmpty]: Start isEmpty. Operand 4278 states and 11423 transitions. [2021-06-05 10:33:32,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:33:32,328 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:33:32,328 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:33:32,329 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-06-05 10:33:32,329 INFO L430 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:33:32,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:33:32,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1397099399, now seen corresponding path program 60 times [2021-06-05 10:33:32,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:33:32,329 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796720201] [2021-06-05 10:33:32,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:33:32,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:33:32,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:33:32,831 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:33:32,831 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796720201] [2021-06-05 10:33:32,831 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796720201] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:33:32,831 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:33:32,831 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:33:32,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615459417] [2021-06-05 10:33:32,832 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:33:32,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:33:32,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:33:32,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:33:32,832 INFO L87 Difference]: Start difference. First operand 4278 states and 11423 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:33,712 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-06-05 10:33:33,900 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 10:33:34,253 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:33:34,434 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-06-05 10:33:34,632 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2021-06-05 10:33:34,815 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 10:33:35,029 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:33:35,374 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-06-05 10:33:35,545 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2021-06-05 10:33:35,729 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 10:33:35,905 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 10:33:36,056 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:33:36,220 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:33:36,395 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:33:36,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:33:36,402 INFO L93 Difference]: Finished difference Result 8200 states and 20743 transitions. [2021-06-05 10:33:36,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 10:33:36,402 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:33:36,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:33:36,409 INFO L225 Difference]: With dead ends: 8200 [2021-06-05 10:33:36,409 INFO L226 Difference]: Without dead ends: 8200 [2021-06-05 10:33:36,410 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 3166.8ms TimeCoverageRelationStatistics Valid=572, Invalid=1590, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 10:33:36,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8200 states. [2021-06-05 10:33:36,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8200 to 4276. [2021-06-05 10:33:36,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4274 states have (on average 2.6715021057557324) internal successors, (11418), 4275 states have internal predecessors, (11418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:36,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 11418 transitions. [2021-06-05 10:33:36,485 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 11418 transitions. Word has length 94 [2021-06-05 10:33:36,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:33:36,486 INFO L482 AbstractCegarLoop]: Abstraction has 4276 states and 11418 transitions. [2021-06-05 10:33:36,486 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:36,486 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 11418 transitions. [2021-06-05 10:33:36,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:33:36,489 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:33:36,489 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:33:36,489 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-06-05 10:33:36,489 INFO L430 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:33:36,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:33:36,489 INFO L82 PathProgramCache]: Analyzing trace with hash 2072286407, now seen corresponding path program 61 times [2021-06-05 10:33:36,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:33:36,490 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016644207] [2021-06-05 10:33:36,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:33:36,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:33:37,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:33:37,083 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:33:37,083 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016644207] [2021-06-05 10:33:37,084 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016644207] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:33:37,084 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:33:37,084 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:33:37,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614981769] [2021-06-05 10:33:37,084 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:33:37,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:33:37,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:33:37,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:33:37,084 INFO L87 Difference]: Start difference. First operand 4276 states and 11418 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:37,923 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-06-05 10:33:38,111 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 10:33:38,300 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2021-06-05 10:33:38,508 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-06-05 10:33:38,684 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 10:33:38,902 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2021-06-05 10:33:39,322 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2021-06-05 10:33:39,503 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 10:33:39,712 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 10:33:40,063 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-06-05 10:33:40,263 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2021-06-05 10:33:40,450 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 10:33:40,658 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2021-06-05 10:33:40,854 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 10:33:41,081 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2021-06-05 10:33:41,270 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2021-06-05 10:33:41,485 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-06-05 10:33:41,677 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 10:33:41,893 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-06-05 10:33:41,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:33:41,904 INFO L93 Difference]: Finished difference Result 8573 states and 21772 transitions. [2021-06-05 10:33:41,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 10:33:41,904 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:33:41,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:33:41,909 INFO L225 Difference]: With dead ends: 8573 [2021-06-05 10:33:41,909 INFO L226 Difference]: Without dead ends: 8573 [2021-06-05 10:33:41,909 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 4471.3ms TimeCoverageRelationStatistics Valid=773, Invalid=1879, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 10:33:41,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8573 states. [2021-06-05 10:33:41,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8573 to 4288. [2021-06-05 10:33:41,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4288 states, 4286 states have (on average 2.672421838544097) internal successors, (11454), 4287 states have internal predecessors, (11454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:41,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4288 states to 4288 states and 11454 transitions. [2021-06-05 10:33:41,970 INFO L78 Accepts]: Start accepts. Automaton has 4288 states and 11454 transitions. Word has length 94 [2021-06-05 10:33:41,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:33:41,970 INFO L482 AbstractCegarLoop]: Abstraction has 4288 states and 11454 transitions. [2021-06-05 10:33:41,970 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:41,970 INFO L276 IsEmpty]: Start isEmpty. Operand 4288 states and 11454 transitions. [2021-06-05 10:33:41,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:33:41,974 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:33:41,974 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:33:41,974 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-06-05 10:33:41,974 INFO L430 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:33:41,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:33:41,974 INFO L82 PathProgramCache]: Analyzing trace with hash -1184860991, now seen corresponding path program 62 times [2021-06-05 10:33:41,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:33:41,975 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125544948] [2021-06-05 10:33:41,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:33:41,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:33:42,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:33:42,566 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:33:42,566 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125544948] [2021-06-05 10:33:42,566 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125544948] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:33:42,566 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:33:42,566 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:33:42,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560039552] [2021-06-05 10:33:42,566 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:33:42,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:33:42,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:33:42,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:33:42,567 INFO L87 Difference]: Start difference. First operand 4288 states and 11454 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:43,428 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-06-05 10:33:43,613 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 10:33:43,803 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2021-06-05 10:33:44,007 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 10:33:44,369 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-06-05 10:33:44,583 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2021-06-05 10:33:44,765 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 10:33:44,984 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:33:45,340 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-06-05 10:33:45,528 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 10:33:45,725 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 10:33:45,898 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-06-05 10:33:46,099 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2021-06-05 10:33:46,294 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 10:33:46,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:33:46,302 INFO L93 Difference]: Finished difference Result 7742 states and 19691 transitions. [2021-06-05 10:33:46,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 10:33:46,302 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:33:46,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:33:46,308 INFO L225 Difference]: With dead ends: 7742 [2021-06-05 10:33:46,308 INFO L226 Difference]: Without dead ends: 7742 [2021-06-05 10:33:46,308 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 3420.3ms TimeCoverageRelationStatistics Valid=587, Invalid=1575, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 10:33:46,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7742 states. [2021-06-05 10:33:46,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7742 to 4264. [2021-06-05 10:33:46,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4264 states, 4262 states have (on average 2.670577193805725) internal successors, (11382), 4263 states have internal predecessors, (11382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:46,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4264 states to 4264 states and 11382 transitions. [2021-06-05 10:33:46,372 INFO L78 Accepts]: Start accepts. Automaton has 4264 states and 11382 transitions. Word has length 94 [2021-06-05 10:33:46,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:33:46,372 INFO L482 AbstractCegarLoop]: Abstraction has 4264 states and 11382 transitions. [2021-06-05 10:33:46,373 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:46,373 INFO L276 IsEmpty]: Start isEmpty. Operand 4264 states and 11382 transitions. [2021-06-05 10:33:46,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:33:46,376 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:33:46,376 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:33:46,376 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-06-05 10:33:46,376 INFO L430 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:33:46,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:33:46,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1162417289, now seen corresponding path program 63 times [2021-06-05 10:33:46,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:33:46,377 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015658204] [2021-06-05 10:33:46,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:33:46,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:33:46,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:33:46,957 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:33:46,957 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015658204] [2021-06-05 10:33:46,957 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015658204] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:33:46,979 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:33:46,979 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:33:46,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912813640] [2021-06-05 10:33:46,979 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:33:46,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:33:46,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:33:46,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:33:46,980 INFO L87 Difference]: Start difference. First operand 4264 states and 11382 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:48,089 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-06-05 10:33:48,240 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2021-06-05 10:33:48,439 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 10:33:48,657 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 10:33:48,879 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 10:33:49,257 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-06-05 10:33:49,388 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2021-06-05 10:33:49,526 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2021-06-05 10:33:49,788 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 10:33:49,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:33:49,928 INFO L93 Difference]: Finished difference Result 7252 states and 18347 transitions. [2021-06-05 10:33:49,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:33:49,929 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:33:49,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:33:49,934 INFO L225 Difference]: With dead ends: 7252 [2021-06-05 10:33:49,934 INFO L226 Difference]: Without dead ends: 7252 [2021-06-05 10:33:49,934 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 2768.0ms TimeCoverageRelationStatistics Valid=509, Invalid=1561, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 10:33:49,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7252 states. [2021-06-05 10:33:49,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7252 to 4276. [2021-06-05 10:33:49,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4274 states have (on average 2.6700982686008423) internal successors, (11412), 4275 states have internal predecessors, (11412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:49,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 11412 transitions. [2021-06-05 10:33:49,987 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 11412 transitions. Word has length 94 [2021-06-05 10:33:49,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:33:49,987 INFO L482 AbstractCegarLoop]: Abstraction has 4276 states and 11412 transitions. [2021-06-05 10:33:49,987 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:49,987 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 11412 transitions. [2021-06-05 10:33:49,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:33:49,990 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:33:49,991 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:33:49,991 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-06-05 10:33:49,991 INFO L430 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:33:49,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:33:49,991 INFO L82 PathProgramCache]: Analyzing trace with hash -1222085873, now seen corresponding path program 64 times [2021-06-05 10:33:49,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:33:49,991 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448124896] [2021-06-05 10:33:49,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:33:50,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:33:50,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:33:50,563 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:33:50,563 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448124896] [2021-06-05 10:33:50,563 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448124896] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:33:50,563 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:33:50,563 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:33:50,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988964943] [2021-06-05 10:33:50,563 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:33:50,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:33:50,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:33:50,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:33:50,564 INFO L87 Difference]: Start difference. First operand 4276 states and 11412 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:51,687 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-06-05 10:33:51,852 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:33:52,035 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 10:33:52,254 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 10:33:52,495 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 10:33:52,905 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-06-05 10:33:53,035 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2021-06-05 10:33:53,176 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2021-06-05 10:33:53,423 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 10:33:53,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:33:53,564 INFO L93 Difference]: Finished difference Result 7730 states and 19283 transitions. [2021-06-05 10:33:53,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:33:53,565 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:33:53,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:33:53,571 INFO L225 Difference]: With dead ends: 7730 [2021-06-05 10:33:53,571 INFO L226 Difference]: Without dead ends: 7730 [2021-06-05 10:33:53,571 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 2767.8ms TimeCoverageRelationStatistics Valid=509, Invalid=1561, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 10:33:53,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7730 states. [2021-06-05 10:33:53,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7730 to 4278. [2021-06-05 10:33:53,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4278 states, 4276 states have (on average 2.6700187090739007) internal successors, (11417), 4277 states have internal predecessors, (11417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:53,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4278 states to 4278 states and 11417 transitions. [2021-06-05 10:33:53,641 INFO L78 Accepts]: Start accepts. Automaton has 4278 states and 11417 transitions. Word has length 94 [2021-06-05 10:33:53,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:33:53,642 INFO L482 AbstractCegarLoop]: Abstraction has 4278 states and 11417 transitions. [2021-06-05 10:33:53,642 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:53,642 INFO L276 IsEmpty]: Start isEmpty. Operand 4278 states and 11417 transitions. [2021-06-05 10:33:53,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:33:53,646 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:33:53,646 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:33:53,646 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-06-05 10:33:53,646 INFO L430 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:33:53,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:33:53,646 INFO L82 PathProgramCache]: Analyzing trace with hash 458927873, now seen corresponding path program 65 times [2021-06-05 10:33:53,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:33:53,646 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797979513] [2021-06-05 10:33:53,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:33:53,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:33:54,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:33:54,151 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:33:54,151 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797979513] [2021-06-05 10:33:54,151 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797979513] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:33:54,151 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:33:54,151 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:33:54,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056323731] [2021-06-05 10:33:54,151 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:33:54,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:33:54,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:33:54,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:33:54,152 INFO L87 Difference]: Start difference. First operand 4278 states and 11417 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:55,299 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-06-05 10:33:55,465 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:33:55,655 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-06-05 10:33:55,865 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2021-06-05 10:33:56,065 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 10:33:56,284 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:33:56,714 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-06-05 10:33:56,845 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2021-06-05 10:33:56,983 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2021-06-05 10:33:57,229 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 10:33:57,367 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-06-05 10:33:57,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:33:57,375 INFO L93 Difference]: Finished difference Result 7528 states and 18879 transitions. [2021-06-05 10:33:57,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 10:33:57,375 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:33:57,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:33:57,382 INFO L225 Difference]: With dead ends: 7528 [2021-06-05 10:33:57,382 INFO L226 Difference]: Without dead ends: 7528 [2021-06-05 10:33:57,383 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 2898.6ms TimeCoverageRelationStatistics Valid=542, Invalid=1620, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 10:33:57,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7528 states. [2021-06-05 10:33:57,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7528 to 4272. [2021-06-05 10:33:57,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4272 states, 4270 states have (on average 2.670257611241218) internal successors, (11402), 4271 states have internal predecessors, (11402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:57,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4272 states to 4272 states and 11402 transitions. [2021-06-05 10:33:57,450 INFO L78 Accepts]: Start accepts. Automaton has 4272 states and 11402 transitions. Word has length 94 [2021-06-05 10:33:57,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:33:57,450 INFO L482 AbstractCegarLoop]: Abstraction has 4272 states and 11402 transitions. [2021-06-05 10:33:57,450 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:57,450 INFO L276 IsEmpty]: Start isEmpty. Operand 4272 states and 11402 transitions. [2021-06-05 10:33:57,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:33:57,454 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:33:57,454 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:33:57,454 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-06-05 10:33:57,454 INFO L430 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:33:57,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:33:57,455 INFO L82 PathProgramCache]: Analyzing trace with hash -974517769, now seen corresponding path program 66 times [2021-06-05 10:33:57,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:33:57,455 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622474138] [2021-06-05 10:33:57,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:33:57,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:33:58,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:33:58,047 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:33:58,047 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622474138] [2021-06-05 10:33:58,047 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622474138] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:33:58,047 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:33:58,047 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:33:58,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217886737] [2021-06-05 10:33:58,047 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:33:58,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:33:58,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:33:58,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:33:58,048 INFO L87 Difference]: Start difference. First operand 4272 states and 11402 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:33:59,191 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:33:59,368 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:33:59,551 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 10:33:59,773 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 10:33:59,999 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 10:34:00,398 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-06-05 10:34:00,554 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2021-06-05 10:34:00,691 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2021-06-05 10:34:00,937 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 10:34:01,071 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-06-05 10:34:01,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:34:01,079 INFO L93 Difference]: Finished difference Result 7362 states and 18509 transitions. [2021-06-05 10:34:01,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:34:01,079 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:34:01,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:34:01,084 INFO L225 Difference]: With dead ends: 7362 [2021-06-05 10:34:01,084 INFO L226 Difference]: Without dead ends: 7362 [2021-06-05 10:34:01,084 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 2795.2ms TimeCoverageRelationStatistics Valid=509, Invalid=1561, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 10:34:01,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7362 states. [2021-06-05 10:34:01,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7362 to 4278. [2021-06-05 10:34:01,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4278 states, 4276 states have (on average 2.6700187090739007) internal successors, (11417), 4277 states have internal predecessors, (11417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:01,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4278 states to 4278 states and 11417 transitions. [2021-06-05 10:34:01,139 INFO L78 Accepts]: Start accepts. Automaton has 4278 states and 11417 transitions. Word has length 94 [2021-06-05 10:34:01,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:34:01,139 INFO L482 AbstractCegarLoop]: Abstraction has 4278 states and 11417 transitions. [2021-06-05 10:34:01,139 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:01,139 INFO L276 IsEmpty]: Start isEmpty. Operand 4278 states and 11417 transitions. [2021-06-05 10:34:01,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:34:01,142 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:34:01,142 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:34:01,142 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-06-05 10:34:01,143 INFO L430 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:34:01,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:34:01,143 INFO L82 PathProgramCache]: Analyzing trace with hash 706495977, now seen corresponding path program 67 times [2021-06-05 10:34:01,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:34:01,143 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259052686] [2021-06-05 10:34:01,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:34:01,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:34:01,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:34:01,635 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:34:01,635 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259052686] [2021-06-05 10:34:01,635 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259052686] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:34:01,635 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:34:01,635 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:34:01,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429407518] [2021-06-05 10:34:01,635 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:34:01,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:34:01,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:34:01,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:34:01,636 INFO L87 Difference]: Start difference. First operand 4278 states and 11417 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:02,774 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:34:02,949 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:34:03,157 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:34:03,407 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:34:03,591 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:34:03,816 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:34:04,263 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-06-05 10:34:04,394 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2021-06-05 10:34:04,533 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2021-06-05 10:34:04,781 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 10:34:04,930 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-06-05 10:34:04,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:34:04,938 INFO L93 Difference]: Finished difference Result 7636 states and 19036 transitions. [2021-06-05 10:34:04,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 10:34:04,938 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:34:04,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:34:04,944 INFO L225 Difference]: With dead ends: 7636 [2021-06-05 10:34:04,944 INFO L226 Difference]: Without dead ends: 7636 [2021-06-05 10:34:04,945 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 2940.4ms TimeCoverageRelationStatistics Valid=542, Invalid=1620, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 10:34:04,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7636 states. [2021-06-05 10:34:04,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7636 to 4276. [2021-06-05 10:34:04,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4274 states have (on average 2.6700982686008423) internal successors, (11412), 4275 states have internal predecessors, (11412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:05,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 11412 transitions. [2021-06-05 10:34:05,004 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 11412 transitions. Word has length 94 [2021-06-05 10:34:05,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:34:05,004 INFO L482 AbstractCegarLoop]: Abstraction has 4276 states and 11412 transitions. [2021-06-05 10:34:05,004 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:05,004 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 11412 transitions. [2021-06-05 10:34:05,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:34:05,008 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:34:05,009 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:34:05,009 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-06-05 10:34:05,009 INFO L430 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:34:05,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:34:05,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1796789299, now seen corresponding path program 68 times [2021-06-05 10:34:05,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:34:05,009 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944147723] [2021-06-05 10:34:05,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:34:05,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:34:05,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:34:05,560 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:34:05,560 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944147723] [2021-06-05 10:34:05,560 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944147723] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:34:05,561 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:34:05,561 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:34:05,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209356500] [2021-06-05 10:34:05,561 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:34:05,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:34:05,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:34:05,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:34:05,561 INFO L87 Difference]: Start difference. First operand 4276 states and 11412 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:06,733 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:34:06,903 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:34:07,089 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:34:07,272 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:34:07,488 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:34:07,669 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:34:07,899 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:34:08,319 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-06-05 10:34:08,450 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2021-06-05 10:34:08,604 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2021-06-05 10:34:08,850 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 10:34:08,985 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-06-05 10:34:08,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:34:08,993 INFO L93 Difference]: Finished difference Result 7158 states and 18100 transitions. [2021-06-05 10:34:08,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 10:34:08,993 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:34:08,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:34:08,999 INFO L225 Difference]: With dead ends: 7158 [2021-06-05 10:34:08,999 INFO L226 Difference]: Without dead ends: 7158 [2021-06-05 10:34:08,999 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 3082.9ms TimeCoverageRelationStatistics Valid=574, Invalid=1682, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 10:34:09,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7158 states. [2021-06-05 10:34:09,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7158 to 4272. [2021-06-05 10:34:09,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4272 states, 4270 states have (on average 2.670257611241218) internal successors, (11402), 4271 states have internal predecessors, (11402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:09,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4272 states to 4272 states and 11402 transitions. [2021-06-05 10:34:09,051 INFO L78 Accepts]: Start accepts. Automaton has 4272 states and 11402 transitions. Word has length 94 [2021-06-05 10:34:09,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:34:09,052 INFO L482 AbstractCegarLoop]: Abstraction has 4272 states and 11402 transitions. [2021-06-05 10:34:09,052 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:09,052 INFO L276 IsEmpty]: Start isEmpty. Operand 4272 states and 11402 transitions. [2021-06-05 10:34:09,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:34:09,055 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:34:09,055 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:34:09,055 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-06-05 10:34:09,055 INFO L430 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:34:09,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:34:09,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1422080281, now seen corresponding path program 69 times [2021-06-05 10:34:09,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:34:09,056 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003141664] [2021-06-05 10:34:09,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:34:09,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:34:09,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:34:09,640 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:34:09,640 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003141664] [2021-06-05 10:34:09,640 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003141664] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:34:09,640 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:34:09,641 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:34:09,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781115641] [2021-06-05 10:34:09,641 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:34:09,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:34:09,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:34:09,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:34:09,641 INFO L87 Difference]: Start difference. First operand 4272 states and 11402 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:10,490 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:34:10,685 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 10:34:10,868 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 10:34:11,272 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 10:34:11,472 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 10:34:11,678 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 10:34:11,988 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:34:12,166 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 10:34:12,349 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:34:12,539 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 10:34:12,706 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 10:34:12,887 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-06-05 10:34:13,070 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2021-06-05 10:34:13,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:34:13,077 INFO L93 Difference]: Finished difference Result 8956 states and 22744 transitions. [2021-06-05 10:34:13,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:34:13,078 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:34:13,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:34:13,085 INFO L225 Difference]: With dead ends: 8956 [2021-06-05 10:34:13,085 INFO L226 Difference]: Without dead ends: 8956 [2021-06-05 10:34:13,085 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 3172.6ms TimeCoverageRelationStatistics Valid=554, Invalid=1516, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 10:34:13,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8956 states. [2021-06-05 10:34:13,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8956 to 4344. [2021-06-05 10:34:13,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4344 states, 4342 states have (on average 2.6757254721326578) internal successors, (11618), 4343 states have internal predecessors, (11618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:13,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4344 states to 4344 states and 11618 transitions. [2021-06-05 10:34:13,153 INFO L78 Accepts]: Start accepts. Automaton has 4344 states and 11618 transitions. Word has length 94 [2021-06-05 10:34:13,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:34:13,153 INFO L482 AbstractCegarLoop]: Abstraction has 4344 states and 11618 transitions. [2021-06-05 10:34:13,153 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:13,153 INFO L276 IsEmpty]: Start isEmpty. Operand 4344 states and 11618 transitions. [2021-06-05 10:34:13,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:34:13,156 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:34:13,156 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:34:13,156 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-06-05 10:34:13,157 INFO L430 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:34:13,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:34:13,157 INFO L82 PathProgramCache]: Analyzing trace with hash 1131974903, now seen corresponding path program 70 times [2021-06-05 10:34:13,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:34:13,157 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868110475] [2021-06-05 10:34:13,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:34:13,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:34:13,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:34:13,703 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:34:13,703 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868110475] [2021-06-05 10:34:13,703 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868110475] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:34:13,703 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:34:13,704 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:34:13,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436844772] [2021-06-05 10:34:13,704 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:34:13,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:34:13,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:34:13,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:34:13,704 INFO L87 Difference]: Start difference. First operand 4344 states and 11618 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:14,558 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:34:14,762 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 10:34:14,951 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 10:34:15,170 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-06-05 10:34:15,400 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-06-05 10:34:15,812 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 10:34:16,020 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 10:34:16,350 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-06-05 10:34:16,574 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-06-05 10:34:16,788 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2021-06-05 10:34:16,993 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2021-06-05 10:34:17,197 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 10:34:17,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:34:17,204 INFO L93 Difference]: Finished difference Result 9630 states and 24540 transitions. [2021-06-05 10:34:17,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-05 10:34:17,205 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:34:17,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:34:17,211 INFO L225 Difference]: With dead ends: 9630 [2021-06-05 10:34:17,211 INFO L226 Difference]: Without dead ends: 9630 [2021-06-05 10:34:17,212 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 3126.2ms TimeCoverageRelationStatistics Valid=536, Invalid=1444, Unknown=0, NotChecked=0, Total=1980 [2021-06-05 10:34:17,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9630 states. [2021-06-05 10:34:17,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9630 to 4308. [2021-06-05 10:34:17,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4308 states, 4306 states have (on average 2.673014398513702) internal successors, (11510), 4307 states have internal predecessors, (11510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:17,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4308 states to 4308 states and 11510 transitions. [2021-06-05 10:34:17,275 INFO L78 Accepts]: Start accepts. Automaton has 4308 states and 11510 transitions. Word has length 94 [2021-06-05 10:34:17,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:34:17,275 INFO L482 AbstractCegarLoop]: Abstraction has 4308 states and 11510 transitions. [2021-06-05 10:34:17,275 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:17,275 INFO L276 IsEmpty]: Start isEmpty. Operand 4308 states and 11510 transitions. [2021-06-05 10:34:17,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:34:17,278 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:34:17,278 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:34:17,279 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-06-05 10:34:17,279 INFO L430 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:34:17,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:34:17,279 INFO L82 PathProgramCache]: Analyzing trace with hash -765241249, now seen corresponding path program 71 times [2021-06-05 10:34:17,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:34:17,279 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992064693] [2021-06-05 10:34:17,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:34:17,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:34:17,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:34:17,901 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:34:17,901 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992064693] [2021-06-05 10:34:17,901 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992064693] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:34:17,901 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:34:17,901 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:34:17,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045983711] [2021-06-05 10:34:17,902 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:34:17,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:34:17,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:34:17,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:34:17,902 INFO L87 Difference]: Start difference. First operand 4308 states and 11510 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:18,729 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:34:18,918 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 10:34:19,293 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:34:19,466 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 10:34:19,677 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 10:34:19,893 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 10:34:20,199 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-06-05 10:34:20,365 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2021-06-05 10:34:20,531 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 10:34:20,709 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 10:34:20,858 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:34:21,029 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:34:21,202 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:34:21,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:34:21,212 INFO L93 Difference]: Finished difference Result 9404 states and 23743 transitions. [2021-06-05 10:34:21,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:34:21,213 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:34:21,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:34:21,220 INFO L225 Difference]: With dead ends: 9404 [2021-06-05 10:34:21,221 INFO L226 Difference]: Without dead ends: 9404 [2021-06-05 10:34:21,221 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 3111.1ms TimeCoverageRelationStatistics Valid=539, Invalid=1531, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 10:34:21,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9404 states. [2021-06-05 10:34:21,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9404 to 4310. [2021-06-05 10:34:21,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4310 states, 4308 states have (on average 2.6729340761374187) internal successors, (11515), 4309 states have internal predecessors, (11515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:21,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4310 states to 4310 states and 11515 transitions. [2021-06-05 10:34:21,300 INFO L78 Accepts]: Start accepts. Automaton has 4310 states and 11515 transitions. Word has length 94 [2021-06-05 10:34:21,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:34:21,300 INFO L482 AbstractCegarLoop]: Abstraction has 4310 states and 11515 transitions. [2021-06-05 10:34:21,300 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:21,300 INFO L276 IsEmpty]: Start isEmpty. Operand 4310 states and 11515 transitions. [2021-06-05 10:34:21,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:34:21,304 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:34:21,304 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:34:21,304 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-06-05 10:34:21,304 INFO L430 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:34:21,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:34:21,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1003294505, now seen corresponding path program 72 times [2021-06-05 10:34:21,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:34:21,305 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117836475] [2021-06-05 10:34:21,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:34:21,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:34:21,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:34:21,976 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:34:21,976 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117836475] [2021-06-05 10:34:21,976 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117836475] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:34:21,976 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:34:21,976 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:34:21,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133147435] [2021-06-05 10:34:21,976 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:34:21,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:34:21,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:34:21,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:34:21,977 INFO L87 Difference]: Start difference. First operand 4310 states and 11515 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:22,849 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:34:23,053 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 10:34:23,445 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:34:23,630 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:34:23,830 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:34:24,014 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:34:24,231 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:34:24,598 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-06-05 10:34:24,783 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2021-06-05 10:34:24,949 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 10:34:25,123 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 10:34:25,277 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:34:25,441 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:34:25,610 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:34:25,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:34:25,617 INFO L93 Difference]: Finished difference Result 9386 states and 23705 transitions. [2021-06-05 10:34:25,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 10:34:25,618 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:34:25,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:34:25,625 INFO L225 Difference]: With dead ends: 9386 [2021-06-05 10:34:25,625 INFO L226 Difference]: Without dead ends: 9386 [2021-06-05 10:34:25,625 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 3312.9ms TimeCoverageRelationStatistics Valid=572, Invalid=1590, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 10:34:25,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9386 states. [2021-06-05 10:34:25,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9386 to 4308. [2021-06-05 10:34:25,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4308 states, 4306 states have (on average 2.673014398513702) internal successors, (11510), 4307 states have internal predecessors, (11510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:25,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4308 states to 4308 states and 11510 transitions. [2021-06-05 10:34:25,691 INFO L78 Accepts]: Start accepts. Automaton has 4308 states and 11510 transitions. Word has length 94 [2021-06-05 10:34:25,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:34:25,692 INFO L482 AbstractCegarLoop]: Abstraction has 4308 states and 11510 transitions. [2021-06-05 10:34:25,692 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:25,692 INFO L276 IsEmpty]: Start isEmpty. Operand 4308 states and 11510 transitions. [2021-06-05 10:34:25,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:34:25,695 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:34:25,695 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:34:25,695 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-06-05 10:34:25,695 INFO L430 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:34:25,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:34:25,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1678481513, now seen corresponding path program 73 times [2021-06-05 10:34:25,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:34:25,696 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114357682] [2021-06-05 10:34:25,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:34:25,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:34:26,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:34:26,218 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:34:26,218 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114357682] [2021-06-05 10:34:26,218 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114357682] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:34:26,218 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:34:26,218 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:34:26,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988222099] [2021-06-05 10:34:26,218 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:34:26,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:34:26,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:34:26,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:34:26,219 INFO L87 Difference]: Start difference. First operand 4308 states and 11510 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:27,068 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:34:27,283 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 10:34:27,480 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 10:34:27,692 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 10:34:27,867 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 10:34:28,093 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 10:34:28,525 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 10:34:28,712 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:34:28,928 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 10:34:29,294 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-06-05 10:34:29,494 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 10:34:29,700 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-06-05 10:34:29,907 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2021-06-05 10:34:30,123 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-06-05 10:34:30,339 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2021-06-05 10:34:30,531 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 10:34:30,737 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2021-06-05 10:34:30,927 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:34:31,127 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 10:34:31,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:34:31,138 INFO L93 Difference]: Finished difference Result 10847 states and 27385 transitions. [2021-06-05 10:34:31,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 10:34:31,138 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:34:31,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:34:31,145 INFO L225 Difference]: With dead ends: 10847 [2021-06-05 10:34:31,145 INFO L226 Difference]: Without dead ends: 10847 [2021-06-05 10:34:31,145 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 4439.5ms TimeCoverageRelationStatistics Valid=773, Invalid=1879, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 10:34:31,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10847 states. [2021-06-05 10:34:31,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10847 to 4320. [2021-06-05 10:34:31,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4320 states, 4318 states have (on average 2.6739231125521075) internal successors, (11546), 4319 states have internal predecessors, (11546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:31,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4320 states to 4320 states and 11546 transitions. [2021-06-05 10:34:31,215 INFO L78 Accepts]: Start accepts. Automaton has 4320 states and 11546 transitions. Word has length 94 [2021-06-05 10:34:31,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:34:31,215 INFO L482 AbstractCegarLoop]: Abstraction has 4320 states and 11546 transitions. [2021-06-05 10:34:31,215 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:31,216 INFO L276 IsEmpty]: Start isEmpty. Operand 4320 states and 11546 transitions. [2021-06-05 10:34:31,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:34:31,219 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:34:31,219 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:34:31,219 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-06-05 10:34:31,219 INFO L430 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:34:31,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:34:31,219 INFO L82 PathProgramCache]: Analyzing trace with hash -1578665885, now seen corresponding path program 74 times [2021-06-05 10:34:31,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:34:31,220 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201433112] [2021-06-05 10:34:31,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:34:31,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:34:31,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:34:31,728 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:34:31,728 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201433112] [2021-06-05 10:34:31,728 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201433112] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:34:31,728 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:34:31,728 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:34:31,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219692337] [2021-06-05 10:34:31,728 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:34:31,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:34:31,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:34:31,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:34:31,729 INFO L87 Difference]: Start difference. First operand 4320 states and 11546 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:32,449 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2021-06-05 10:34:32,613 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:34:32,809 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 10:34:33,003 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 10:34:33,213 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 10:34:33,605 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:34:33,802 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:34:33,985 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:34:34,206 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:34:34,591 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-06-05 10:34:34,780 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-06-05 10:34:34,976 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-06-05 10:34:35,148 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:34:35,354 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 10:34:35,553 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:34:35,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:34:35,560 INFO L93 Difference]: Finished difference Result 10016 states and 25304 transitions. [2021-06-05 10:34:35,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 10:34:35,560 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:34:35,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:34:35,567 INFO L225 Difference]: With dead ends: 10016 [2021-06-05 10:34:35,567 INFO L226 Difference]: Without dead ends: 10016 [2021-06-05 10:34:35,568 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 3359.5ms TimeCoverageRelationStatistics Valid=587, Invalid=1575, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 10:34:35,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10016 states. [2021-06-05 10:34:35,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10016 to 4296. [2021-06-05 10:34:35,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4296 states, 4294 states have (on average 2.672100605496041) internal successors, (11474), 4295 states have internal predecessors, (11474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:35,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4296 states to 4296 states and 11474 transitions. [2021-06-05 10:34:35,639 INFO L78 Accepts]: Start accepts. Automaton has 4296 states and 11474 transitions. Word has length 94 [2021-06-05 10:34:35,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:34:35,639 INFO L482 AbstractCegarLoop]: Abstraction has 4296 states and 11474 transitions. [2021-06-05 10:34:35,639 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:35,640 INFO L276 IsEmpty]: Start isEmpty. Operand 4296 states and 11474 transitions. [2021-06-05 10:34:35,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:34:35,643 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:34:35,643 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:34:35,643 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-06-05 10:34:35,643 INFO L430 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:34:35,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:34:35,643 INFO L82 PathProgramCache]: Analyzing trace with hash -1551607467, now seen corresponding path program 75 times [2021-06-05 10:34:35,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:34:35,644 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042324105] [2021-06-05 10:34:35,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:34:35,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:34:36,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:34:36,218 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:34:36,218 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042324105] [2021-06-05 10:34:36,218 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042324105] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:34:36,218 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:34:36,218 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:34:36,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640676298] [2021-06-05 10:34:36,218 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:34:36,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:34:36,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:34:36,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:34:36,219 INFO L87 Difference]: Start difference. First operand 4296 states and 11474 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:37,062 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:34:37,425 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:34:37,591 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:34:37,770 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 10:34:38,004 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 10:34:38,225 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 10:34:38,534 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-06-05 10:34:38,687 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 10:34:38,839 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 10:34:39,001 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 10:34:39,135 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:34:39,293 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:34:39,453 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 10:34:39,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:34:39,463 INFO L93 Difference]: Finished difference Result 8578 states and 21721 transitions. [2021-06-05 10:34:39,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:34:39,463 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:34:39,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:34:39,470 INFO L225 Difference]: With dead ends: 8578 [2021-06-05 10:34:39,470 INFO L226 Difference]: Without dead ends: 8578 [2021-06-05 10:34:39,471 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2938.2ms TimeCoverageRelationStatistics Valid=524, Invalid=1546, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 10:34:39,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8578 states. [2021-06-05 10:34:39,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8578 to 4302. [2021-06-05 10:34:39,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4302 states, 4300 states have (on average 2.671860465116279) internal successors, (11489), 4301 states have internal predecessors, (11489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:39,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4302 states to 4302 states and 11489 transitions. [2021-06-05 10:34:39,538 INFO L78 Accepts]: Start accepts. Automaton has 4302 states and 11489 transitions. Word has length 94 [2021-06-05 10:34:39,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:34:39,539 INFO L482 AbstractCegarLoop]: Abstraction has 4302 states and 11489 transitions. [2021-06-05 10:34:39,539 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:39,539 INFO L276 IsEmpty]: Start isEmpty. Operand 4302 states and 11489 transitions. [2021-06-05 10:34:39,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:34:39,544 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:34:39,544 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:34:39,544 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-06-05 10:34:39,544 INFO L430 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:34:39,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:34:39,545 INFO L82 PathProgramCache]: Analyzing trace with hash 216928287, now seen corresponding path program 76 times [2021-06-05 10:34:39,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:34:39,545 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716058252] [2021-06-05 10:34:39,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:34:39,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:34:40,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:34:40,048 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:34:40,048 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716058252] [2021-06-05 10:34:40,048 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716058252] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:34:40,048 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:34:40,048 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:34:40,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704054385] [2021-06-05 10:34:40,048 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:34:40,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:34:40,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:34:40,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:34:40,049 INFO L87 Difference]: Start difference. First operand 4302 states and 11489 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:40,925 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:34:41,308 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:34:41,473 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:34:41,661 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:34:41,867 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:34:42,051 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:34:42,274 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:34:42,633 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-06-05 10:34:42,791 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 10:34:42,945 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 10:34:43,108 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 10:34:43,260 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:34:43,421 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:34:43,579 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 10:34:43,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:34:43,589 INFO L93 Difference]: Finished difference Result 8852 states and 22248 transitions. [2021-06-05 10:34:43,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 10:34:43,589 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:34:43,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:34:43,596 INFO L225 Difference]: With dead ends: 8852 [2021-06-05 10:34:43,596 INFO L226 Difference]: Without dead ends: 8852 [2021-06-05 10:34:43,596 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 3063.9ms TimeCoverageRelationStatistics Valid=557, Invalid=1605, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 10:34:43,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8852 states. [2021-06-05 10:34:43,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8852 to 4300. [2021-06-05 10:34:43,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4300 states, 4298 states have (on average 2.6719404374127502) internal successors, (11484), 4299 states have internal predecessors, (11484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:43,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4300 states to 4300 states and 11484 transitions. [2021-06-05 10:34:43,657 INFO L78 Accepts]: Start accepts. Automaton has 4300 states and 11484 transitions. Word has length 94 [2021-06-05 10:34:43,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:34:43,658 INFO L482 AbstractCegarLoop]: Abstraction has 4300 states and 11484 transitions. [2021-06-05 10:34:43,658 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:43,658 INFO L276 IsEmpty]: Start isEmpty. Operand 4300 states and 11484 transitions. [2021-06-05 10:34:43,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:34:43,661 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:34:43,661 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:34:43,661 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-06-05 10:34:43,661 INFO L430 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:34:43,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:34:43,662 INFO L82 PathProgramCache]: Analyzing trace with hash -318323883, now seen corresponding path program 77 times [2021-06-05 10:34:43,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:34:43,662 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401453362] [2021-06-05 10:34:43,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:34:43,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:34:44,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:34:44,171 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:34:44,171 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401453362] [2021-06-05 10:34:44,171 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401453362] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:34:44,171 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:34:44,171 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:34:44,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990212543] [2021-06-05 10:34:44,171 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:34:44,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:34:44,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:34:44,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:34:44,172 INFO L87 Difference]: Start difference. First operand 4300 states and 11484 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:45,024 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:34:45,395 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:34:45,576 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:34:45,751 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:34:45,944 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:34:46,156 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:34:46,339 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:34:46,568 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:34:46,898 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-06-05 10:34:47,049 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 10:34:47,201 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 10:34:47,361 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 10:34:47,499 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:34:47,647 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:34:47,798 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 10:34:47,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:34:47,805 INFO L93 Difference]: Finished difference Result 8602 states and 21774 transitions. [2021-06-05 10:34:47,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 10:34:47,806 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:34:47,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:34:47,812 INFO L225 Difference]: With dead ends: 8602 [2021-06-05 10:34:47,812 INFO L226 Difference]: Without dead ends: 8602 [2021-06-05 10:34:47,813 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 3233.1ms TimeCoverageRelationStatistics Valid=589, Invalid=1667, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 10:34:47,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8602 states. [2021-06-05 10:34:47,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8602 to 4296. [2021-06-05 10:34:47,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4296 states, 4294 states have (on average 2.672100605496041) internal successors, (11474), 4295 states have internal predecessors, (11474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:47,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4296 states to 4296 states and 11474 transitions. [2021-06-05 10:34:47,879 INFO L78 Accepts]: Start accepts. Automaton has 4296 states and 11474 transitions. Word has length 94 [2021-06-05 10:34:47,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:34:47,879 INFO L482 AbstractCegarLoop]: Abstraction has 4296 states and 11474 transitions. [2021-06-05 10:34:47,879 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:47,879 INFO L276 IsEmpty]: Start isEmpty. Operand 4296 states and 11474 transitions. [2021-06-05 10:34:47,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:34:47,883 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:34:47,883 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:34:47,883 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-06-05 10:34:47,883 INFO L430 AbstractCegarLoop]: === Iteration 84 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:34:47,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:34:47,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1478343731, now seen corresponding path program 78 times [2021-06-05 10:34:47,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:34:47,883 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669461416] [2021-06-05 10:34:47,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:34:47,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:34:48,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:34:48,466 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:34:48,466 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669461416] [2021-06-05 10:34:48,466 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669461416] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:34:48,466 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:34:48,466 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:34:48,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105324024] [2021-06-05 10:34:48,466 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:34:48,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:34:48,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:34:48,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:34:48,467 INFO L87 Difference]: Start difference. First operand 4296 states and 11474 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:49,322 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:34:49,498 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:34:49,685 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:34:49,872 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 10:34:50,088 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 10:34:50,267 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 10:34:50,500 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 10:34:50,878 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:34:51,095 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 10:34:51,292 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:34:51,518 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 10:34:51,873 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 10:34:52,077 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 10:34:52,252 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 10:34:52,462 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2021-06-05 10:34:52,645 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 10:34:52,863 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2021-06-05 10:34:53,040 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-06-05 10:34:53,245 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2021-06-05 10:34:53,422 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:34:53,624 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 10:34:53,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:34:53,635 INFO L93 Difference]: Finished difference Result 8964 states and 22796 transitions. [2021-06-05 10:34:53,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 10:34:53,635 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:34:53,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:34:53,642 INFO L225 Difference]: With dead ends: 8964 [2021-06-05 10:34:53,643 INFO L226 Difference]: Without dead ends: 8964 [2021-06-05 10:34:53,643 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 4719.2ms TimeCoverageRelationStatistics Valid=828, Invalid=2034, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 10:34:53,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8964 states. [2021-06-05 10:34:53,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8964 to 4332. [2021-06-05 10:34:53,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4332 states, 4330 states have (on average 2.6748267898383373) internal successors, (11582), 4331 states have internal predecessors, (11582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:53,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4332 states to 4332 states and 11582 transitions. [2021-06-05 10:34:53,729 INFO L78 Accepts]: Start accepts. Automaton has 4332 states and 11582 transitions. Word has length 94 [2021-06-05 10:34:53,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:34:53,729 INFO L482 AbstractCegarLoop]: Abstraction has 4332 states and 11582 transitions. [2021-06-05 10:34:53,729 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:53,729 INFO L276 IsEmpty]: Start isEmpty. Operand 4332 states and 11582 transitions. [2021-06-05 10:34:53,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:34:53,733 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:34:53,733 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:34:53,733 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-06-05 10:34:53,733 INFO L430 AbstractCegarLoop]: === Iteration 85 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:34:53,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:34:53,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1778803667, now seen corresponding path program 79 times [2021-06-05 10:34:53,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:34:53,734 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131676506] [2021-06-05 10:34:53,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:34:53,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:34:54,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:34:54,294 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:34:54,294 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131676506] [2021-06-05 10:34:54,294 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131676506] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:34:54,294 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:34:54,294 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:34:54,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628838472] [2021-06-05 10:34:54,294 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:34:54,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:34:54,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:34:54,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:34:54,295 INFO L87 Difference]: Start difference. First operand 4332 states and 11582 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:55,151 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:34:55,333 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:34:55,523 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:34:55,713 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 10:34:55,931 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 10:34:56,353 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:34:56,544 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:34:56,754 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:34:56,940 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:34:57,175 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:34:57,572 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 10:34:57,759 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-06-05 10:34:57,933 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 10:34:58,126 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-06-05 10:34:58,307 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 10:34:58,505 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-06-05 10:34:58,685 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:34:58,854 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-06-05 10:34:59,043 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 10:34:59,245 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:34:59,429 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:34:59,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:34:59,439 INFO L93 Difference]: Finished difference Result 9233 states and 23256 transitions. [2021-06-05 10:34:59,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 10:34:59,439 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:34:59,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:34:59,445 INFO L225 Difference]: With dead ends: 9233 [2021-06-05 10:34:59,446 INFO L226 Difference]: Without dead ends: 9233 [2021-06-05 10:34:59,446 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 4585.3ms TimeCoverageRelationStatistics Valid=812, Invalid=2050, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 10:34:59,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9233 states. [2021-06-05 10:34:59,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9233 to 4320. [2021-06-05 10:34:59,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4320 states, 4318 states have (on average 2.6739231125521075) internal successors, (11546), 4319 states have internal predecessors, (11546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:59,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4320 states to 4320 states and 11546 transitions. [2021-06-05 10:34:59,513 INFO L78 Accepts]: Start accepts. Automaton has 4320 states and 11546 transitions. Word has length 94 [2021-06-05 10:34:59,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:34:59,513 INFO L482 AbstractCegarLoop]: Abstraction has 4320 states and 11546 transitions. [2021-06-05 10:34:59,513 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:34:59,514 INFO L276 IsEmpty]: Start isEmpty. Operand 4320 states and 11546 transitions. [2021-06-05 10:34:59,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:34:59,518 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:34:59,518 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:34:59,518 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-06-05 10:34:59,518 INFO L430 AbstractCegarLoop]: === Iteration 86 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:34:59,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:34:59,518 INFO L82 PathProgramCache]: Analyzing trace with hash 551134327, now seen corresponding path program 80 times [2021-06-05 10:34:59,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:34:59,519 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185194661] [2021-06-05 10:34:59,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:34:59,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:35:00,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:35:00,046 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:35:00,046 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185194661] [2021-06-05 10:35:00,046 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185194661] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:35:00,046 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:35:00,046 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:35:00,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208306238] [2021-06-05 10:35:00,047 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:35:00,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:35:00,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:35:00,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:35:00,047 INFO L87 Difference]: Start difference. First operand 4320 states and 11546 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:00,898 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:35:01,077 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:35:01,268 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:35:01,681 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:35:01,874 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:35:02,055 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:35:02,269 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:35:02,456 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:35:02,684 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:35:03,042 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 10:35:03,218 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 10:35:03,403 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 10:35:03,575 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:35:03,747 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-06-05 10:35:03,923 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:35:03,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:35:03,930 INFO L93 Difference]: Finished difference Result 8060 states and 20509 transitions. [2021-06-05 10:35:03,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 10:35:03,930 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:35:03,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:35:03,937 INFO L225 Difference]: With dead ends: 8060 [2021-06-05 10:35:03,937 INFO L226 Difference]: Without dead ends: 8060 [2021-06-05 10:35:03,937 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 3449.4ms TimeCoverageRelationStatistics Valid=604, Invalid=1652, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 10:35:03,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8060 states. [2021-06-05 10:35:04,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8060 to 4272. [2021-06-05 10:35:04,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4272 states, 4270 states have (on average 2.670257611241218) internal successors, (11402), 4271 states have internal predecessors, (11402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:04,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4272 states to 4272 states and 11402 transitions. [2021-06-05 10:35:04,011 INFO L78 Accepts]: Start accepts. Automaton has 4272 states and 11402 transitions. Word has length 94 [2021-06-05 10:35:04,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:35:04,011 INFO L482 AbstractCegarLoop]: Abstraction has 4272 states and 11402 transitions. [2021-06-05 10:35:04,011 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:04,012 INFO L276 IsEmpty]: Start isEmpty. Operand 4272 states and 11402 transitions. [2021-06-05 10:35:04,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:35:04,016 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:35:04,016 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:35:04,016 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-06-05 10:35:04,016 INFO L430 AbstractCegarLoop]: === Iteration 87 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:35:04,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:35:04,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1575412215, now seen corresponding path program 81 times [2021-06-05 10:35:04,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:35:04,016 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483897325] [2021-06-05 10:35:04,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:35:04,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:35:04,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:35:04,522 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:35:04,522 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483897325] [2021-06-05 10:35:04,522 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483897325] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:35:04,522 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:35:04,522 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:35:04,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619218234] [2021-06-05 10:35:04,522 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:35:04,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:35:04,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:35:04,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:35:04,523 INFO L87 Difference]: Start difference. First operand 4272 states and 11402 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:05,664 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-06-05 10:35:05,820 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2021-06-05 10:35:06,025 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 10:35:06,249 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 10:35:06,478 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 10:35:07,115 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2021-06-05 10:35:07,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:35:07,468 INFO L93 Difference]: Finished difference Result 7390 states and 18677 transitions. [2021-06-05 10:35:07,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:35:07,469 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:35:07,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:35:07,475 INFO L225 Difference]: With dead ends: 7390 [2021-06-05 10:35:07,475 INFO L226 Difference]: Without dead ends: 7390 [2021-06-05 10:35:07,475 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 2640.0ms TimeCoverageRelationStatistics Valid=494, Invalid=1576, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 10:35:07,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7390 states. [2021-06-05 10:35:07,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7390 to 4288. [2021-06-05 10:35:07,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4288 states, 4286 states have (on average 2.6696220251983203) internal successors, (11442), 4287 states have internal predecessors, (11442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:07,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4288 states to 4288 states and 11442 transitions. [2021-06-05 10:35:07,537 INFO L78 Accepts]: Start accepts. Automaton has 4288 states and 11442 transitions. Word has length 94 [2021-06-05 10:35:07,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:35:07,537 INFO L482 AbstractCegarLoop]: Abstraction has 4288 states and 11442 transitions. [2021-06-05 10:35:07,537 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:07,537 INFO L276 IsEmpty]: Start isEmpty. Operand 4288 states and 11442 transitions. [2021-06-05 10:35:07,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:35:07,541 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:35:07,541 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:35:07,541 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-06-05 10:35:07,541 INFO L430 AbstractCegarLoop]: === Iteration 88 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:35:07,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:35:07,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1515743631, now seen corresponding path program 82 times [2021-06-05 10:35:07,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:35:07,542 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596489571] [2021-06-05 10:35:07,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:35:07,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:35:08,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:35:08,051 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:35:08,051 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596489571] [2021-06-05 10:35:08,051 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596489571] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:35:08,051 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:35:08,051 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:35:08,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803840596] [2021-06-05 10:35:08,052 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:35:08,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:35:08,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:35:08,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:35:08,052 INFO L87 Difference]: Start difference. First operand 4288 states and 11442 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:09,195 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-06-05 10:35:09,371 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:35:09,558 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 10:35:09,805 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 10:35:10,035 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 10:35:11,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:35:11,045 INFO L93 Difference]: Finished difference Result 7868 states and 19613 transitions. [2021-06-05 10:35:11,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:35:11,046 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:35:11,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:35:11,052 INFO L225 Difference]: With dead ends: 7868 [2021-06-05 10:35:11,052 INFO L226 Difference]: Without dead ends: 7868 [2021-06-05 10:35:11,052 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 2629.1ms TimeCoverageRelationStatistics Valid=494, Invalid=1576, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 10:35:11,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7868 states. [2021-06-05 10:35:11,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7868 to 4290. [2021-06-05 10:35:11,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4290 states, 4288 states have (on average 2.669542910447761) internal successors, (11447), 4289 states have internal predecessors, (11447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:11,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4290 states to 4290 states and 11447 transitions. [2021-06-05 10:35:11,121 INFO L78 Accepts]: Start accepts. Automaton has 4290 states and 11447 transitions. Word has length 94 [2021-06-05 10:35:11,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:35:11,121 INFO L482 AbstractCegarLoop]: Abstraction has 4290 states and 11447 transitions. [2021-06-05 10:35:11,121 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:11,121 INFO L276 IsEmpty]: Start isEmpty. Operand 4290 states and 11447 transitions. [2021-06-05 10:35:11,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:35:11,125 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:35:11,125 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:35:11,125 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-06-05 10:35:11,125 INFO L430 AbstractCegarLoop]: === Iteration 89 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:35:11,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:35:11,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1098209919, now seen corresponding path program 83 times [2021-06-05 10:35:11,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:35:11,126 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478990557] [2021-06-05 10:35:11,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:35:11,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:35:11,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:35:11,655 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:35:11,655 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478990557] [2021-06-05 10:35:11,655 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478990557] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:35:11,655 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:35:11,655 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:35:11,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93767241] [2021-06-05 10:35:11,655 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:35:11,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:35:11,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:35:11,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:35:11,656 INFO L87 Difference]: Start difference. First operand 4290 states and 11447 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:12,797 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-06-05 10:35:12,975 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:35:13,170 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-06-05 10:35:13,381 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2021-06-05 10:35:13,567 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 10:35:13,793 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:35:14,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:35:14,804 INFO L93 Difference]: Finished difference Result 7666 states and 19209 transitions. [2021-06-05 10:35:14,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 10:35:14,804 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:35:14,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:35:14,812 INFO L225 Difference]: With dead ends: 7666 [2021-06-05 10:35:14,812 INFO L226 Difference]: Without dead ends: 7666 [2021-06-05 10:35:14,812 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 2796.9ms TimeCoverageRelationStatistics Valid=527, Invalid=1635, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 10:35:14,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7666 states. [2021-06-05 10:35:14,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7666 to 4284. [2021-06-05 10:35:14,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4284 states, 4282 states have (on average 2.669780476412891) internal successors, (11432), 4283 states have internal predecessors, (11432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:14,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4284 states to 4284 states and 11432 transitions. [2021-06-05 10:35:14,881 INFO L78 Accepts]: Start accepts. Automaton has 4284 states and 11432 transitions. Word has length 94 [2021-06-05 10:35:14,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:35:14,881 INFO L482 AbstractCegarLoop]: Abstraction has 4284 states and 11432 transitions. [2021-06-05 10:35:14,881 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:14,881 INFO L276 IsEmpty]: Start isEmpty. Operand 4284 states and 11432 transitions. [2021-06-05 10:35:14,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:35:14,885 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:35:14,885 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:35:14,885 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-06-05 10:35:14,885 INFO L430 AbstractCegarLoop]: === Iteration 90 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:35:14,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:35:14,886 INFO L82 PathProgramCache]: Analyzing trace with hash 1763311735, now seen corresponding path program 84 times [2021-06-05 10:35:14,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:35:14,886 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450360894] [2021-06-05 10:35:14,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:35:14,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:35:15,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:35:15,392 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:35:15,392 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450360894] [2021-06-05 10:35:15,392 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450360894] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:35:15,392 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:35:15,392 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:35:15,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710389732] [2021-06-05 10:35:15,392 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:35:15,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:35:15,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:35:15,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:35:15,393 INFO L87 Difference]: Start difference. First operand 4284 states and 11432 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:16,544 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:35:16,733 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:35:16,923 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 10:35:17,147 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 10:35:17,378 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 10:35:17,927 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2021-06-05 10:35:18,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:35:18,410 INFO L93 Difference]: Finished difference Result 7940 states and 19772 transitions. [2021-06-05 10:35:18,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:35:18,410 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:35:18,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:35:18,416 INFO L225 Difference]: With dead ends: 7940 [2021-06-05 10:35:18,416 INFO L226 Difference]: Without dead ends: 7940 [2021-06-05 10:35:18,416 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 2620.1ms TimeCoverageRelationStatistics Valid=494, Invalid=1576, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 10:35:18,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7940 states. [2021-06-05 10:35:18,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7940 to 4290. [2021-06-05 10:35:18,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4290 states, 4288 states have (on average 2.669542910447761) internal successors, (11447), 4289 states have internal predecessors, (11447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:18,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4290 states to 4290 states and 11447 transitions. [2021-06-05 10:35:18,484 INFO L78 Accepts]: Start accepts. Automaton has 4290 states and 11447 transitions. Word has length 94 [2021-06-05 10:35:18,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:35:18,484 INFO L482 AbstractCegarLoop]: Abstraction has 4290 states and 11447 transitions. [2021-06-05 10:35:18,484 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:18,484 INFO L276 IsEmpty]: Start isEmpty. Operand 4290 states and 11447 transitions. [2021-06-05 10:35:18,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:35:18,488 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:35:18,488 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:35:18,488 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-06-05 10:35:18,488 INFO L430 AbstractCegarLoop]: === Iteration 91 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:35:18,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:35:18,488 INFO L82 PathProgramCache]: Analyzing trace with hash -850641815, now seen corresponding path program 85 times [2021-06-05 10:35:18,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:35:18,488 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218105874] [2021-06-05 10:35:18,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:35:18,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:35:18,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:35:18,999 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:35:18,999 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218105874] [2021-06-05 10:35:18,999 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218105874] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:35:18,999 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:35:18,999 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:35:18,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91107189] [2021-06-05 10:35:18,999 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:35:18,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:35:19,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:35:19,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:35:19,000 INFO L87 Difference]: Start difference. First operand 4290 states and 11447 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:20,112 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:35:20,299 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:35:20,514 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:35:20,723 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:35:20,905 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:35:21,131 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:35:22,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:35:22,158 INFO L93 Difference]: Finished difference Result 8214 states and 20299 transitions. [2021-06-05 10:35:22,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 10:35:22,159 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:35:22,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:35:22,165 INFO L225 Difference]: With dead ends: 8214 [2021-06-05 10:35:22,165 INFO L226 Difference]: Without dead ends: 8214 [2021-06-05 10:35:22,165 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 2806.6ms TimeCoverageRelationStatistics Valid=527, Invalid=1635, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 10:35:22,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8214 states. [2021-06-05 10:35:22,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8214 to 4288. [2021-06-05 10:35:22,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4288 states, 4286 states have (on average 2.6696220251983203) internal successors, (11442), 4287 states have internal predecessors, (11442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:22,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4288 states to 4288 states and 11442 transitions. [2021-06-05 10:35:22,237 INFO L78 Accepts]: Start accepts. Automaton has 4288 states and 11442 transitions. Word has length 94 [2021-06-05 10:35:22,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:35:22,237 INFO L482 AbstractCegarLoop]: Abstraction has 4288 states and 11442 transitions. [2021-06-05 10:35:22,237 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:22,237 INFO L276 IsEmpty]: Start isEmpty. Operand 4288 states and 11442 transitions. [2021-06-05 10:35:22,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:35:22,242 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:35:22,242 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:35:22,243 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-06-05 10:35:22,243 INFO L430 AbstractCegarLoop]: === Iteration 92 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:35:22,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:35:22,243 INFO L82 PathProgramCache]: Analyzing trace with hash 239651507, now seen corresponding path program 86 times [2021-06-05 10:35:22,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:35:22,243 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134628370] [2021-06-05 10:35:22,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:35:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:35:22,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:35:22,769 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:35:22,770 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134628370] [2021-06-05 10:35:22,770 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134628370] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:35:22,770 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:35:22,770 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:35:22,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018235920] [2021-06-05 10:35:22,770 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:35:22,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:35:22,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:35:22,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:35:22,771 INFO L87 Difference]: Start difference. First operand 4288 states and 11442 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:23,914 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:35:24,091 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:35:24,278 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:35:24,474 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:35:24,696 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:35:24,881 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:35:25,114 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:35:26,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:35:26,141 INFO L93 Difference]: Finished difference Result 7736 states and 19363 transitions. [2021-06-05 10:35:26,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 10:35:26,141 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:35:26,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:35:26,146 INFO L225 Difference]: With dead ends: 7736 [2021-06-05 10:35:26,146 INFO L226 Difference]: Without dead ends: 7736 [2021-06-05 10:35:26,147 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 2991.4ms TimeCoverageRelationStatistics Valid=559, Invalid=1697, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 10:35:26,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7736 states. [2021-06-05 10:35:26,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7736 to 4276. [2021-06-05 10:35:26,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4274 states have (on average 2.6700982686008423) internal successors, (11412), 4275 states have internal predecessors, (11412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:26,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 11412 transitions. [2021-06-05 10:35:26,206 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 11412 transitions. Word has length 94 [2021-06-05 10:35:26,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:35:26,206 INFO L482 AbstractCegarLoop]: Abstraction has 4276 states and 11412 transitions. [2021-06-05 10:35:26,206 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:26,206 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 11412 transitions. [2021-06-05 10:35:26,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:35:26,209 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:35:26,209 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:35:26,209 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-06-05 10:35:26,209 INFO L430 AbstractCegarLoop]: === Iteration 93 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:35:26,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:35:26,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1779482551, now seen corresponding path program 87 times [2021-06-05 10:35:26,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:35:26,210 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003184240] [2021-06-05 10:35:26,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:35:26,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:35:26,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:35:26,683 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:35:26,683 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003184240] [2021-06-05 10:35:26,683 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003184240] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:35:26,683 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:35:26,683 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:35:26,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974773360] [2021-06-05 10:35:26,684 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:35:26,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:35:26,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:35:26,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:35:26,684 INFO L87 Difference]: Start difference. First operand 4276 states and 11412 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:27,656 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-06-05 10:35:27,798 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:35:27,984 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:35:28,169 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 10:35:28,391 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 10:35:28,633 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 10:35:29,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:35:29,611 INFO L93 Difference]: Finished difference Result 7480 states and 18778 transitions. [2021-06-05 10:35:29,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:35:29,611 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:35:29,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:35:29,618 INFO L225 Difference]: With dead ends: 7480 [2021-06-05 10:35:29,618 INFO L226 Difference]: Without dead ends: 7480 [2021-06-05 10:35:29,618 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 2625.7ms TimeCoverageRelationStatistics Valid=494, Invalid=1576, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 10:35:29,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7480 states. [2021-06-05 10:35:29,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7480 to 4284. [2021-06-05 10:35:29,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4284 states, 4282 states have (on average 2.669780476412891) internal successors, (11432), 4283 states have internal predecessors, (11432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:29,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4284 states to 4284 states and 11432 transitions. [2021-06-05 10:35:29,683 INFO L78 Accepts]: Start accepts. Automaton has 4284 states and 11432 transitions. Word has length 94 [2021-06-05 10:35:29,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:35:29,683 INFO L482 AbstractCegarLoop]: Abstraction has 4284 states and 11432 transitions. [2021-06-05 10:35:29,683 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:29,683 INFO L276 IsEmpty]: Start isEmpty. Operand 4284 states and 11432 transitions. [2021-06-05 10:35:29,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:35:29,687 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:35:29,687 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:35:29,687 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-06-05 10:35:29,687 INFO L430 AbstractCegarLoop]: === Iteration 94 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:35:29,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:35:29,687 INFO L82 PathProgramCache]: Analyzing trace with hash -834470999, now seen corresponding path program 88 times [2021-06-05 10:35:29,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:35:29,687 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275017904] [2021-06-05 10:35:29,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:35:29,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:35:30,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:35:30,204 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:35:30,204 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275017904] [2021-06-05 10:35:30,204 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275017904] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:35:30,205 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:35:30,205 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:35:30,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642393382] [2021-06-05 10:35:30,205 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:35:30,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:35:30,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:35:30,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:35:30,205 INFO L87 Difference]: Start difference. First operand 4284 states and 11432 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:31,389 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:35:31,583 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:35:31,787 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:35:31,999 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:35:32,185 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:35:32,413 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:35:33,459 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-06-05 10:35:33,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:35:33,468 INFO L93 Difference]: Finished difference Result 7754 states and 19305 transitions. [2021-06-05 10:35:33,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 10:35:33,468 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:35:33,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:35:33,475 INFO L225 Difference]: With dead ends: 7754 [2021-06-05 10:35:33,475 INFO L226 Difference]: Without dead ends: 7754 [2021-06-05 10:35:33,475 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 2817.0ms TimeCoverageRelationStatistics Valid=527, Invalid=1635, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 10:35:33,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7754 states. [2021-06-05 10:35:33,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7754 to 4282. [2021-06-05 10:35:33,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4282 states, 4280 states have (on average 2.6698598130841122) internal successors, (11427), 4281 states have internal predecessors, (11427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:33,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4282 states to 4282 states and 11427 transitions. [2021-06-05 10:35:33,545 INFO L78 Accepts]: Start accepts. Automaton has 4282 states and 11427 transitions. Word has length 94 [2021-06-05 10:35:33,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:35:33,545 INFO L482 AbstractCegarLoop]: Abstraction has 4282 states and 11427 transitions. [2021-06-05 10:35:33,545 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:33,545 INFO L276 IsEmpty]: Start isEmpty. Operand 4282 states and 11427 transitions. [2021-06-05 10:35:33,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:35:33,549 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:35:33,549 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:35:33,549 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-06-05 10:35:33,549 INFO L430 AbstractCegarLoop]: === Iteration 95 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:35:33,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:35:33,549 INFO L82 PathProgramCache]: Analyzing trace with hash 255822323, now seen corresponding path program 89 times [2021-06-05 10:35:33,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:35:33,549 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326449088] [2021-06-05 10:35:33,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:35:33,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:35:34,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:35:34,090 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:35:34,090 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326449088] [2021-06-05 10:35:34,090 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326449088] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:35:34,090 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:35:34,090 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:35:34,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884609688] [2021-06-05 10:35:34,090 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:35:34,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:35:34,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:35:34,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:35:34,091 INFO L87 Difference]: Start difference. First operand 4282 states and 11427 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:35,237 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:35:35,415 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:35:35,603 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:35:35,796 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:35:36,018 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:35:36,204 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:35:36,441 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:35:37,133 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2021-06-05 10:35:37,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:35:37,485 INFO L93 Difference]: Finished difference Result 7820 states and 19449 transitions. [2021-06-05 10:35:37,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 10:35:37,485 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:35:37,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:35:37,491 INFO L225 Difference]: With dead ends: 7820 [2021-06-05 10:35:37,491 INFO L226 Difference]: Without dead ends: 7820 [2021-06-05 10:35:37,492 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 3017.3ms TimeCoverageRelationStatistics Valid=559, Invalid=1697, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 10:35:37,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7820 states. [2021-06-05 10:35:37,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7820 to 4278. [2021-06-05 10:35:37,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4278 states, 4276 states have (on average 2.6700187090739007) internal successors, (11417), 4277 states have internal predecessors, (11417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:37,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4278 states to 4278 states and 11417 transitions. [2021-06-05 10:35:37,558 INFO L78 Accepts]: Start accepts. Automaton has 4278 states and 11417 transitions. Word has length 94 [2021-06-05 10:35:37,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:35:37,558 INFO L482 AbstractCegarLoop]: Abstraction has 4278 states and 11417 transitions. [2021-06-05 10:35:37,558 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:37,558 INFO L276 IsEmpty]: Start isEmpty. Operand 4278 states and 11417 transitions. [2021-06-05 10:35:37,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:35:37,562 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:35:37,562 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:35:37,562 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-06-05 10:35:37,562 INFO L430 AbstractCegarLoop]: === Iteration 96 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:35:37,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:35:37,562 INFO L82 PathProgramCache]: Analyzing trace with hash -592317295, now seen corresponding path program 90 times [2021-06-05 10:35:37,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:35:37,562 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185594238] [2021-06-05 10:35:37,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:35:37,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:35:38,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:35:38,102 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:35:38,102 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185594238] [2021-06-05 10:35:38,102 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185594238] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:35:38,102 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:35:38,102 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:35:38,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234677354] [2021-06-05 10:35:38,102 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:35:38,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:35:38,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:35:38,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:35:38,103 INFO L87 Difference]: Start difference. First operand 4278 states and 11417 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:39,089 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-06-05 10:35:39,260 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:35:39,425 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:35:39,579 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:35:39,760 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:35:39,959 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:35:40,179 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:35:40,367 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:35:40,596 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:35:41,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:35:41,589 INFO L93 Difference]: Finished difference Result 7272 states and 18359 transitions. [2021-06-05 10:35:41,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 10:35:41,589 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:35:41,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:35:41,595 INFO L225 Difference]: With dead ends: 7272 [2021-06-05 10:35:41,595 INFO L226 Difference]: Without dead ends: 7272 [2021-06-05 10:35:41,595 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 3164.6ms TimeCoverageRelationStatistics Valid=590, Invalid=1762, Unknown=0, NotChecked=0, Total=2352 [2021-06-05 10:35:41,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7272 states. [2021-06-05 10:35:41,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7272 to 4276. [2021-06-05 10:35:41,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4274 states have (on average 2.6700982686008423) internal successors, (11412), 4275 states have internal predecessors, (11412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:41,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 11412 transitions. [2021-06-05 10:35:41,653 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 11412 transitions. Word has length 94 [2021-06-05 10:35:41,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:35:41,654 INFO L482 AbstractCegarLoop]: Abstraction has 4276 states and 11412 transitions. [2021-06-05 10:35:41,654 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:41,654 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 11412 transitions. [2021-06-05 10:35:41,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:35:41,657 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:35:41,657 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:35:41,657 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-06-05 10:35:41,657 INFO L430 AbstractCegarLoop]: === Iteration 97 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:35:41,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:35:41,658 INFO L82 PathProgramCache]: Analyzing trace with hash 1969874521, now seen corresponding path program 91 times [2021-06-05 10:35:41,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:35:41,658 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347704828] [2021-06-05 10:35:41,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:35:41,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:35:42,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:35:42,160 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:35:42,160 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347704828] [2021-06-05 10:35:42,160 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347704828] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:35:42,160 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:35:42,160 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:35:42,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503030364] [2021-06-05 10:35:42,161 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:35:42,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:35:42,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:35:42,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:35:42,161 INFO L87 Difference]: Start difference. First operand 4276 states and 11412 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:43,036 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:35:43,233 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 10:35:43,415 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 10:35:43,805 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 10:35:44,006 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 10:35:44,213 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 10:35:44,541 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:35:44,744 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 10:35:44,928 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:35:45,119 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 10:35:45,287 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 10:35:45,469 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-06-05 10:35:45,659 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2021-06-05 10:35:45,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:35:45,666 INFO L93 Difference]: Finished difference Result 9314 states and 23705 transitions. [2021-06-05 10:35:45,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:35:45,666 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:35:45,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:35:45,673 INFO L225 Difference]: With dead ends: 9314 [2021-06-05 10:35:45,673 INFO L226 Difference]: Without dead ends: 9314 [2021-06-05 10:35:45,673 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 3081.8ms TimeCoverageRelationStatistics Valid=554, Invalid=1516, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 10:35:45,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9314 states. [2021-06-05 10:35:45,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9314 to 4360. [2021-06-05 10:35:45,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4360 states, 4358 states have (on average 2.6764570904084444) internal successors, (11664), 4359 states have internal predecessors, (11664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:45,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4360 states to 4360 states and 11664 transitions. [2021-06-05 10:35:45,742 INFO L78 Accepts]: Start accepts. Automaton has 4360 states and 11664 transitions. Word has length 94 [2021-06-05 10:35:45,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:35:45,742 INFO L482 AbstractCegarLoop]: Abstraction has 4360 states and 11664 transitions. [2021-06-05 10:35:45,742 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:45,742 INFO L276 IsEmpty]: Start isEmpty. Operand 4360 states and 11664 transitions. [2021-06-05 10:35:45,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:35:45,745 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:35:45,746 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:35:45,746 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-06-05 10:35:45,746 INFO L430 AbstractCegarLoop]: === Iteration 98 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:35:45,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:35:45,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1679769143, now seen corresponding path program 92 times [2021-06-05 10:35:45,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:35:45,746 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227876138] [2021-06-05 10:35:45,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:35:45,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:35:46,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:35:46,246 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:35:46,246 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227876138] [2021-06-05 10:35:46,247 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227876138] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:35:46,247 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:35:46,247 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:35:46,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914111573] [2021-06-05 10:35:46,247 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:35:46,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:35:46,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:35:46,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:35:46,247 INFO L87 Difference]: Start difference. First operand 4360 states and 11664 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:47,108 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:35:47,310 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 10:35:47,496 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 10:35:47,717 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-06-05 10:35:47,944 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-06-05 10:35:48,332 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 10:35:48,545 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 10:35:48,869 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-06-05 10:35:49,075 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-06-05 10:35:49,294 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2021-06-05 10:35:49,506 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2021-06-05 10:35:49,715 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 10:35:49,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:35:49,721 INFO L93 Difference]: Finished difference Result 9988 states and 25501 transitions. [2021-06-05 10:35:49,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-05 10:35:49,722 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:35:49,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:35:49,731 INFO L225 Difference]: With dead ends: 9988 [2021-06-05 10:35:49,731 INFO L226 Difference]: Without dead ends: 9988 [2021-06-05 10:35:49,731 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 3153.9ms TimeCoverageRelationStatistics Valid=536, Invalid=1444, Unknown=0, NotChecked=0, Total=1980 [2021-06-05 10:35:49,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9988 states. [2021-06-05 10:35:49,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9988 to 4324. [2021-06-05 10:35:49,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4324 states, 4322 states have (on average 2.6737621471540955) internal successors, (11556), 4323 states have internal predecessors, (11556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:49,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4324 states to 4324 states and 11556 transitions. [2021-06-05 10:35:49,818 INFO L78 Accepts]: Start accepts. Automaton has 4324 states and 11556 transitions. Word has length 94 [2021-06-05 10:35:49,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:35:49,819 INFO L482 AbstractCegarLoop]: Abstraction has 4324 states and 11556 transitions. [2021-06-05 10:35:49,819 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:49,819 INFO L276 IsEmpty]: Start isEmpty. Operand 4324 states and 11556 transitions. [2021-06-05 10:35:49,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:35:49,822 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:35:49,822 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:35:49,822 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-06-05 10:35:49,822 INFO L430 AbstractCegarLoop]: === Iteration 99 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:35:49,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:35:49,823 INFO L82 PathProgramCache]: Analyzing trace with hash -217447009, now seen corresponding path program 93 times [2021-06-05 10:35:49,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:35:49,823 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184965877] [2021-06-05 10:35:49,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:35:49,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:35:50,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:35:50,307 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:35:50,307 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184965877] [2021-06-05 10:35:50,308 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184965877] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:35:50,308 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:35:50,308 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:35:50,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822771163] [2021-06-05 10:35:50,308 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:35:50,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:35:50,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:35:50,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:35:50,309 INFO L87 Difference]: Start difference. First operand 4324 states and 11556 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:51,164 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:35:51,354 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 10:35:51,697 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:35:51,870 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 10:35:52,080 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 10:35:52,297 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 10:35:52,637 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-06-05 10:35:52,806 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2021-06-05 10:35:52,974 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 10:35:53,155 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 10:35:53,304 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:35:53,475 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:35:53,652 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:35:53,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:35:53,662 INFO L93 Difference]: Finished difference Result 9762 states and 24704 transitions. [2021-06-05 10:35:53,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:35:53,663 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:35:53,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:35:53,670 INFO L225 Difference]: With dead ends: 9762 [2021-06-05 10:35:53,670 INFO L226 Difference]: Without dead ends: 9762 [2021-06-05 10:35:53,670 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 2970.1ms TimeCoverageRelationStatistics Valid=539, Invalid=1531, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 10:35:53,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9762 states. [2021-06-05 10:35:53,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9762 to 4326. [2021-06-05 10:35:53,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4326 states, 4324 states have (on average 2.67368177613321) internal successors, (11561), 4325 states have internal predecessors, (11561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:53,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4326 states to 4326 states and 11561 transitions. [2021-06-05 10:35:53,746 INFO L78 Accepts]: Start accepts. Automaton has 4326 states and 11561 transitions. Word has length 94 [2021-06-05 10:35:53,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:35:53,746 INFO L482 AbstractCegarLoop]: Abstraction has 4326 states and 11561 transitions. [2021-06-05 10:35:53,746 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:53,746 INFO L276 IsEmpty]: Start isEmpty. Operand 4326 states and 11561 transitions. [2021-06-05 10:35:53,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:35:53,750 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:35:53,750 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:35:53,750 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-06-05 10:35:53,750 INFO L430 AbstractCegarLoop]: === Iteration 100 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:35:53,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:35:53,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1551088745, now seen corresponding path program 94 times [2021-06-05 10:35:53,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:35:53,751 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101477867] [2021-06-05 10:35:53,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:35:53,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:35:54,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:35:54,316 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:35:54,316 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101477867] [2021-06-05 10:35:54,316 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101477867] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:35:54,316 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:35:54,316 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:35:54,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735436563] [2021-06-05 10:35:54,317 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:35:54,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:35:54,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:35:54,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:35:54,317 INFO L87 Difference]: Start difference. First operand 4326 states and 11561 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:55,032 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-06-05 10:35:55,178 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:35:55,372 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 10:35:55,717 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:35:55,899 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:35:56,102 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:35:56,287 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:35:56,501 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:35:56,839 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-06-05 10:35:57,007 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2021-06-05 10:35:57,176 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 10:35:57,354 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 10:35:57,509 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:35:57,677 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:35:57,865 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:35:57,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:35:57,872 INFO L93 Difference]: Finished difference Result 9744 states and 24666 transitions. [2021-06-05 10:35:57,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 10:35:57,872 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:35:57,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:35:57,878 INFO L225 Difference]: With dead ends: 9744 [2021-06-05 10:35:57,878 INFO L226 Difference]: Without dead ends: 9744 [2021-06-05 10:35:57,879 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 3265.5ms TimeCoverageRelationStatistics Valid=572, Invalid=1590, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 10:35:57,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9744 states. [2021-06-05 10:35:57,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9744 to 4324. [2021-06-05 10:35:57,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4324 states, 4322 states have (on average 2.6737621471540955) internal successors, (11556), 4323 states have internal predecessors, (11556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:57,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4324 states to 4324 states and 11556 transitions. [2021-06-05 10:35:57,946 INFO L78 Accepts]: Start accepts. Automaton has 4324 states and 11556 transitions. Word has length 94 [2021-06-05 10:35:57,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:35:57,946 INFO L482 AbstractCegarLoop]: Abstraction has 4324 states and 11556 transitions. [2021-06-05 10:35:57,946 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:57,946 INFO L276 IsEmpty]: Start isEmpty. Operand 4324 states and 11556 transitions. [2021-06-05 10:35:57,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:35:57,950 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:35:57,950 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:35:57,950 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-06-05 10:35:57,950 INFO L430 AbstractCegarLoop]: === Iteration 101 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:35:57,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:35:57,950 INFO L82 PathProgramCache]: Analyzing trace with hash -2068691543, now seen corresponding path program 95 times [2021-06-05 10:35:57,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:35:57,950 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862109184] [2021-06-05 10:35:57,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:35:57,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:35:58,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:35:58,469 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:35:58,470 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862109184] [2021-06-05 10:35:58,470 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862109184] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:35:58,470 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:35:58,470 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:35:58,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94478146] [2021-06-05 10:35:58,470 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:35:58,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:35:58,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:35:58,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:35:58,471 INFO L87 Difference]: Start difference. First operand 4324 states and 11556 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:35:59,326 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:35:59,522 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 10:35:59,718 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 10:35:59,927 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 10:36:00,102 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 10:36:00,328 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 10:36:00,753 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 10:36:00,936 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:36:01,148 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 10:36:01,518 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-06-05 10:36:01,719 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 10:36:01,908 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-06-05 10:36:02,116 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2021-06-05 10:36:02,318 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-06-05 10:36:02,538 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2021-06-05 10:36:02,732 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 10:36:02,936 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2021-06-05 10:36:03,149 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:36:03,349 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 10:36:03,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:36:03,360 INFO L93 Difference]: Finished difference Result 11205 states and 28346 transitions. [2021-06-05 10:36:03,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 10:36:03,360 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:36:03,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:36:03,367 INFO L225 Difference]: With dead ends: 11205 [2021-06-05 10:36:03,368 INFO L226 Difference]: Without dead ends: 11205 [2021-06-05 10:36:03,368 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 4434.0ms TimeCoverageRelationStatistics Valid=773, Invalid=1879, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 10:36:03,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11205 states. [2021-06-05 10:36:03,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11205 to 4336. [2021-06-05 10:36:03,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4336 states, 4334 states have (on average 2.6746654360867557) internal successors, (11592), 4335 states have internal predecessors, (11592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:36:03,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4336 states to 4336 states and 11592 transitions. [2021-06-05 10:36:03,455 INFO L78 Accepts]: Start accepts. Automaton has 4336 states and 11592 transitions. Word has length 94 [2021-06-05 10:36:03,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:36:03,455 INFO L482 AbstractCegarLoop]: Abstraction has 4336 states and 11592 transitions. [2021-06-05 10:36:03,455 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:36:03,455 INFO L276 IsEmpty]: Start isEmpty. Operand 4336 states and 11592 transitions. [2021-06-05 10:36:03,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:36:03,459 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:36:03,459 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:36:03,460 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-06-05 10:36:03,460 INFO L430 AbstractCegarLoop]: === Iteration 102 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:36:03,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:36:03,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1030871645, now seen corresponding path program 96 times [2021-06-05 10:36:03,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:36:03,460 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463384873] [2021-06-05 10:36:03,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:36:03,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:36:04,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:36:04,017 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:36:04,018 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463384873] [2021-06-05 10:36:04,018 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463384873] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:36:04,018 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:36:04,018 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:36:04,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126786028] [2021-06-05 10:36:04,018 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:36:04,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:36:04,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:36:04,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:36:04,018 INFO L87 Difference]: Start difference. First operand 4336 states and 11592 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:36:04,901 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:36:05,100 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 10:36:05,297 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 10:36:05,505 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 10:36:05,916 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:36:06,113 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:36:06,298 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:36:06,520 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:36:06,899 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-06-05 10:36:07,090 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-06-05 10:36:07,287 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-06-05 10:36:07,463 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:36:07,652 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 10:36:07,848 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:36:07,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:36:07,855 INFO L93 Difference]: Finished difference Result 10374 states and 26265 transitions. [2021-06-05 10:36:07,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 10:36:07,855 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:36:07,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:36:07,864 INFO L225 Difference]: With dead ends: 10374 [2021-06-05 10:36:07,864 INFO L226 Difference]: Without dead ends: 10374 [2021-06-05 10:36:07,864 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 3371.8ms TimeCoverageRelationStatistics Valid=587, Invalid=1575, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 10:36:07,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10374 states. [2021-06-05 10:36:07,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10374 to 4312. [2021-06-05 10:36:07,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4312 states, 4310 states have (on average 2.6728538283062644) internal successors, (11520), 4311 states have internal predecessors, (11520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:36:07,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4312 states to 4312 states and 11520 transitions. [2021-06-05 10:36:07,942 INFO L78 Accepts]: Start accepts. Automaton has 4312 states and 11520 transitions. Word has length 94 [2021-06-05 10:36:07,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:36:07,942 INFO L482 AbstractCegarLoop]: Abstraction has 4312 states and 11520 transitions. [2021-06-05 10:36:07,942 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:36:07,942 INFO L276 IsEmpty]: Start isEmpty. Operand 4312 states and 11520 transitions. [2021-06-05 10:36:07,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:36:07,946 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:36:07,946 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:36:07,946 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-06-05 10:36:07,946 INFO L430 AbstractCegarLoop]: === Iteration 103 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:36:07,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:36:07,946 INFO L82 PathProgramCache]: Analyzing trace with hash -1003813227, now seen corresponding path program 97 times [2021-06-05 10:36:07,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:36:07,946 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042577603] [2021-06-05 10:36:07,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:36:07,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:36:08,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:36:08,453 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:36:08,453 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042577603] [2021-06-05 10:36:08,453 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042577603] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:36:08,453 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:36:08,453 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:36:08,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908392472] [2021-06-05 10:36:08,454 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:36:08,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:36:08,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:36:08,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:36:08,454 INFO L87 Difference]: Start difference. First operand 4312 states and 11520 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:36:09,331 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:36:09,703 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:36:09,867 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:36:10,043 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 10:36:10,257 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 10:36:10,478 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 10:36:10,805 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-06-05 10:36:10,979 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 10:36:11,130 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 10:36:11,290 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 10:36:11,423 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:36:11,577 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:36:11,739 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 10:36:11,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:36:11,749 INFO L93 Difference]: Finished difference Result 9878 states and 24990 transitions. [2021-06-05 10:36:11,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:36:11,749 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:36:11,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:36:11,756 INFO L225 Difference]: With dead ends: 9878 [2021-06-05 10:36:11,756 INFO L226 Difference]: Without dead ends: 9878 [2021-06-05 10:36:11,756 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2887.2ms TimeCoverageRelationStatistics Valid=524, Invalid=1546, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 10:36:11,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9878 states. [2021-06-05 10:36:11,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9878 to 4318. [2021-06-05 10:36:11,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4318 states, 4316 states have (on average 2.672613531047266) internal successors, (11535), 4317 states have internal predecessors, (11535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:36:11,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4318 states to 4318 states and 11535 transitions. [2021-06-05 10:36:11,822 INFO L78 Accepts]: Start accepts. Automaton has 4318 states and 11535 transitions. Word has length 94 [2021-06-05 10:36:11,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:36:11,822 INFO L482 AbstractCegarLoop]: Abstraction has 4318 states and 11535 transitions. [2021-06-05 10:36:11,822 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:36:11,822 INFO L276 IsEmpty]: Start isEmpty. Operand 4318 states and 11535 transitions. [2021-06-05 10:36:11,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:36:11,826 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:36:11,826 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:36:11,826 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-06-05 10:36:11,826 INFO L430 AbstractCegarLoop]: === Iteration 104 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:36:11,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:36:11,826 INFO L82 PathProgramCache]: Analyzing trace with hash 764722527, now seen corresponding path program 98 times [2021-06-05 10:36:11,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:36:11,826 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131456059] [2021-06-05 10:36:11,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:36:11,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:36:12,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:36:12,346 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:36:12,346 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131456059] [2021-06-05 10:36:12,346 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131456059] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:36:12,346 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:36:12,346 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:36:12,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736038289] [2021-06-05 10:36:12,346 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:36:12,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:36:12,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:36:12,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:36:12,346 INFO L87 Difference]: Start difference. First operand 4318 states and 11535 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:36:13,193 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:36:13,597 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:36:13,758 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:36:13,944 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:36:14,146 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:36:14,328 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:36:14,549 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:36:14,893 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-06-05 10:36:15,048 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 10:36:15,199 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 10:36:15,358 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 10:36:15,491 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:36:15,643 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:36:15,799 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 10:36:15,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:36:15,809 INFO L93 Difference]: Finished difference Result 10152 states and 25517 transitions. [2021-06-05 10:36:15,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 10:36:15,809 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:36:15,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:36:15,818 INFO L225 Difference]: With dead ends: 10152 [2021-06-05 10:36:15,818 INFO L226 Difference]: Without dead ends: 10152 [2021-06-05 10:36:15,818 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 3077.0ms TimeCoverageRelationStatistics Valid=557, Invalid=1605, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 10:36:15,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10152 states. [2021-06-05 10:36:15,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10152 to 4316. [2021-06-05 10:36:15,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4316 states, 4314 states have (on average 2.672693555864627) internal successors, (11530), 4315 states have internal predecessors, (11530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:36:15,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4316 states to 4316 states and 11530 transitions. [2021-06-05 10:36:15,895 INFO L78 Accepts]: Start accepts. Automaton has 4316 states and 11530 transitions. Word has length 94 [2021-06-05 10:36:15,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:36:15,895 INFO L482 AbstractCegarLoop]: Abstraction has 4316 states and 11530 transitions. [2021-06-05 10:36:15,895 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:36:15,895 INFO L276 IsEmpty]: Start isEmpty. Operand 4316 states and 11530 transitions. [2021-06-05 10:36:15,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:36:15,898 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:36:15,898 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:36:15,898 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-06-05 10:36:15,898 INFO L430 AbstractCegarLoop]: === Iteration 105 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:36:15,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:36:15,899 INFO L82 PathProgramCache]: Analyzing trace with hash 229470357, now seen corresponding path program 99 times [2021-06-05 10:36:15,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:36:15,899 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614893889] [2021-06-05 10:36:15,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:36:15,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:36:16,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:36:16,434 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:36:16,434 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614893889] [2021-06-05 10:36:16,434 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614893889] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:36:16,434 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:36:16,434 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:36:16,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893799631] [2021-06-05 10:36:16,434 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:36:16,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:36:16,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:36:16,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:36:16,435 INFO L87 Difference]: Start difference. First operand 4316 states and 11530 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:36:17,322 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:36:17,729 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:36:17,895 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:36:18,072 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:36:18,251 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:36:18,467 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:36:18,653 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:36:18,904 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:36:19,263 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-06-05 10:36:19,419 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 10:36:19,574 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 10:36:19,738 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 10:36:19,876 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:36:20,025 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:36:20,181 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 10:36:20,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:36:20,188 INFO L93 Difference]: Finished difference Result 9902 states and 25043 transitions. [2021-06-05 10:36:20,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 10:36:20,188 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:36:20,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:36:20,196 INFO L225 Difference]: With dead ends: 9902 [2021-06-05 10:36:20,196 INFO L226 Difference]: Without dead ends: 9902 [2021-06-05 10:36:20,196 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 3246.6ms TimeCoverageRelationStatistics Valid=589, Invalid=1667, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 10:36:20,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9902 states. [2021-06-05 10:36:20,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9902 to 4312. [2021-06-05 10:36:20,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4312 states, 4310 states have (on average 2.6728538283062644) internal successors, (11520), 4311 states have internal predecessors, (11520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:36:20,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4312 states to 4312 states and 11520 transitions. [2021-06-05 10:36:20,266 INFO L78 Accepts]: Start accepts. Automaton has 4312 states and 11520 transitions. Word has length 94 [2021-06-05 10:36:20,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:36:20,266 INFO L482 AbstractCegarLoop]: Abstraction has 4312 states and 11520 transitions. [2021-06-05 10:36:20,266 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:36:20,266 INFO L276 IsEmpty]: Start isEmpty. Operand 4312 states and 11520 transitions. [2021-06-05 10:36:20,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:36:20,269 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:36:20,269 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:36:20,270 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-06-05 10:36:20,270 INFO L430 AbstractCegarLoop]: === Iteration 106 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:36:20,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:36:20,270 INFO L82 PathProgramCache]: Analyzing trace with hash 2026137971, now seen corresponding path program 100 times [2021-06-05 10:36:20,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:36:20,270 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465079644] [2021-06-05 10:36:20,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:36:20,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:36:20,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:36:20,798 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:36:20,798 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465079644] [2021-06-05 10:36:20,798 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465079644] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:36:20,798 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:36:20,798 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:36:20,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442358072] [2021-06-05 10:36:20,798 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:36:20,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:36:20,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:36:20,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:36:20,799 INFO L87 Difference]: Start difference. First operand 4312 states and 11520 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:36:21,688 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:36:21,863 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:36:22,051 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:36:22,242 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 10:36:22,464 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 10:36:22,642 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 10:36:22,875 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 10:36:23,247 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:36:23,477 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 10:36:23,660 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:36:23,885 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 10:36:24,291 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 10:36:24,491 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 10:36:24,664 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 10:36:24,874 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2021-06-05 10:36:25,056 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 10:36:25,274 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2021-06-05 10:36:25,451 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-06-05 10:36:25,655 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2021-06-05 10:36:25,835 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:36:26,037 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 10:36:26,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:36:26,048 INFO L93 Difference]: Finished difference Result 11556 states and 29258 transitions. [2021-06-05 10:36:26,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 10:36:26,048 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:36:26,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:36:26,056 INFO L225 Difference]: With dead ends: 11556 [2021-06-05 10:36:26,056 INFO L226 Difference]: Without dead ends: 11556 [2021-06-05 10:36:26,056 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 4697.8ms TimeCoverageRelationStatistics Valid=828, Invalid=2034, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 10:36:26,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11556 states. [2021-06-05 10:36:26,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11556 to 4348. [2021-06-05 10:36:26,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4348 states, 4346 states have (on average 2.675563736769443) internal successors, (11628), 4347 states have internal predecessors, (11628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:36:26,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4348 states to 4348 states and 11628 transitions. [2021-06-05 10:36:26,134 INFO L78 Accepts]: Start accepts. Automaton has 4348 states and 11628 transitions. Word has length 94 [2021-06-05 10:36:26,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:36:26,134 INFO L482 AbstractCegarLoop]: Abstraction has 4348 states and 11628 transitions. [2021-06-05 10:36:26,134 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:36:26,134 INFO L276 IsEmpty]: Start isEmpty. Operand 4348 states and 11628 transitions. [2021-06-05 10:36:26,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:36:26,137 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:36:26,137 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:36:26,138 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-06-05 10:36:26,138 INFO L430 AbstractCegarLoop]: === Iteration 107 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:36:26,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:36:26,138 INFO L82 PathProgramCache]: Analyzing trace with hash -1231009427, now seen corresponding path program 101 times [2021-06-05 10:36:26,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:36:26,138 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104275198] [2021-06-05 10:36:26,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:36:26,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:36:26,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:36:26,700 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:36:26,700 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104275198] [2021-06-05 10:36:26,700 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104275198] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:36:26,700 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:36:26,700 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:36:26,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063397422] [2021-06-05 10:36:26,700 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:36:26,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:36:26,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:36:26,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:36:26,700 INFO L87 Difference]: Start difference. First operand 4348 states and 11628 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:36:27,596 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:36:27,771 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:36:27,960 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:36:28,151 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 10:36:28,366 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 10:36:28,772 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:36:28,956 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:36:29,162 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:36:29,350 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:36:29,601 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:36:30,003 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 10:36:30,186 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-06-05 10:36:30,360 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 10:36:30,551 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-06-05 10:36:30,734 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 10:36:30,931 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-06-05 10:36:31,110 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:36:31,280 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-06-05 10:36:31,470 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 10:36:31,649 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:36:31,833 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:36:31,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:36:31,844 INFO L93 Difference]: Finished difference Result 11825 states and 29718 transitions. [2021-06-05 10:36:31,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 10:36:31,844 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:36:31,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:36:31,853 INFO L225 Difference]: With dead ends: 11825 [2021-06-05 10:36:31,853 INFO L226 Difference]: Without dead ends: 11825 [2021-06-05 10:36:31,854 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 4619.2ms TimeCoverageRelationStatistics Valid=812, Invalid=2050, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 10:36:31,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11825 states. [2021-06-05 10:36:31,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11825 to 4336. [2021-06-05 10:36:31,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4336 states, 4334 states have (on average 2.6746654360867557) internal successors, (11592), 4335 states have internal predecessors, (11592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:36:31,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4336 states to 4336 states and 11592 transitions. [2021-06-05 10:36:31,935 INFO L78 Accepts]: Start accepts. Automaton has 4336 states and 11592 transitions. Word has length 94 [2021-06-05 10:36:31,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:36:31,936 INFO L482 AbstractCegarLoop]: Abstraction has 4336 states and 11592 transitions. [2021-06-05 10:36:31,936 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:36:31,936 INFO L276 IsEmpty]: Start isEmpty. Operand 4336 states and 11592 transitions. [2021-06-05 10:36:31,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:36:31,939 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:36:31,940 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:36:31,940 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-06-05 10:36:31,940 INFO L430 AbstractCegarLoop]: === Iteration 108 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:36:31,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:36:31,940 INFO L82 PathProgramCache]: Analyzing trace with hash 1098928567, now seen corresponding path program 102 times [2021-06-05 10:36:31,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:36:31,940 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884236319] [2021-06-05 10:36:31,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:36:31,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:36:32,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:36:32,482 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:36:32,482 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884236319] [2021-06-05 10:36:32,483 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884236319] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:36:32,483 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:36:32,483 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:36:32,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408778331] [2021-06-05 10:36:32,483 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:36:32,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:36:32,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:36:32,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:36:32,483 INFO L87 Difference]: Start difference. First operand 4336 states and 11592 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:36:33,353 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:36:33,535 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:36:33,732 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:36:34,183 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:36:34,359 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:36:34,543 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:36:34,770 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:36:34,957 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:36:35,184 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:36:35,561 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 10:36:35,737 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 10:36:35,920 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 10:36:36,081 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:36:36,254 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-06-05 10:36:36,431 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:36:36,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:36:36,438 INFO L93 Difference]: Finished difference Result 10652 states and 26971 transitions. [2021-06-05 10:36:36,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 10:36:36,438 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:36:36,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:36:36,446 INFO L225 Difference]: With dead ends: 10652 [2021-06-05 10:36:36,447 INFO L226 Difference]: Without dead ends: 10652 [2021-06-05 10:36:36,447 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 3435.1ms TimeCoverageRelationStatistics Valid=604, Invalid=1652, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 10:36:36,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10652 states. [2021-06-05 10:36:36,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10652 to 4288. [2021-06-05 10:36:36,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4288 states, 4286 states have (on average 2.6710219318712087) internal successors, (11448), 4287 states have internal predecessors, (11448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:36:36,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4288 states to 4288 states and 11448 transitions. [2021-06-05 10:36:36,523 INFO L78 Accepts]: Start accepts. Automaton has 4288 states and 11448 transitions. Word has length 94 [2021-06-05 10:36:36,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:36:36,523 INFO L482 AbstractCegarLoop]: Abstraction has 4288 states and 11448 transitions. [2021-06-05 10:36:36,523 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:36:36,523 INFO L276 IsEmpty]: Start isEmpty. Operand 4288 states and 11448 transitions. [2021-06-05 10:36:36,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:36:36,527 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:36:36,527 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:36:36,527 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-06-05 10:36:36,527 INFO L430 AbstractCegarLoop]: === Iteration 109 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:36:36,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:36:36,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1740223437, now seen corresponding path program 103 times [2021-06-05 10:36:36,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:36:36,527 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828026846] [2021-06-05 10:36:36,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:36:36,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:36:37,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:36:37,010 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:36:37,010 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828026846] [2021-06-05 10:36:37,010 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828026846] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:36:37,010 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:36:37,010 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:36:37,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234575484] [2021-06-05 10:36:37,010 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:36:37,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:36:37,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:36:37,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:36:37,011 INFO L87 Difference]: Start difference. First operand 4288 states and 11448 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:36:38,194 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:36:38,370 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:36:38,548 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 10:36:38,766 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 10:36:38,985 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 10:36:39,286 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-06-05 10:36:39,426 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-06-05 10:36:39,563 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 10:36:39,709 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 10:36:39,966 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:36:40,127 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 10:36:40,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:36:40,137 INFO L93 Difference]: Finished difference Result 8860 states and 22461 transitions. [2021-06-05 10:36:40,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:36:40,137 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:36:40,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:36:40,144 INFO L225 Difference]: With dead ends: 8860 [2021-06-05 10:36:40,144 INFO L226 Difference]: Without dead ends: 8860 [2021-06-05 10:36:40,144 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 2762.5ms TimeCoverageRelationStatistics Valid=509, Invalid=1561, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 10:36:40,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8860 states. [2021-06-05 10:36:40,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8860 to 4296. [2021-06-05 10:36:40,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4296 states, 4294 states have (on average 2.670703306939916) internal successors, (11468), 4295 states have internal predecessors, (11468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:36:40,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4296 states to 4296 states and 11468 transitions. [2021-06-05 10:36:40,207 INFO L78 Accepts]: Start accepts. Automaton has 4296 states and 11468 transitions. Word has length 94 [2021-06-05 10:36:40,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:36:40,207 INFO L482 AbstractCegarLoop]: Abstraction has 4296 states and 11468 transitions. [2021-06-05 10:36:40,207 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:36:40,207 INFO L276 IsEmpty]: Start isEmpty. Operand 4296 states and 11468 transitions. [2021-06-05 10:36:40,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:36:40,210 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:36:40,210 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:36:40,210 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-06-05 10:36:40,210 INFO L430 AbstractCegarLoop]: === Iteration 110 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:36:40,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:36:40,211 INFO L82 PathProgramCache]: Analyzing trace with hash 28312317, now seen corresponding path program 104 times [2021-06-05 10:36:40,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:36:40,211 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563257622] [2021-06-05 10:36:40,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:36:40,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:36:40,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:36:40,709 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:36:40,709 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563257622] [2021-06-05 10:36:40,709 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563257622] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:36:40,709 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:36:40,709 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:36:40,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393293746] [2021-06-05 10:36:40,710 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:36:40,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:36:40,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:36:40,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:36:40,710 INFO L87 Difference]: Start difference. First operand 4296 states and 11468 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:36:41,861 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:36:42,033 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:36:42,220 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:36:42,427 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:36:42,628 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:36:42,848 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:36:43,174 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-06-05 10:36:43,317 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-06-05 10:36:43,453 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 10:36:43,598 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 10:36:43,857 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:36:44,002 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 10:36:44,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:36:44,011 INFO L93 Difference]: Finished difference Result 9134 states and 22988 transitions. [2021-06-05 10:36:44,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 10:36:44,011 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:36:44,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:36:44,019 INFO L225 Difference]: With dead ends: 9134 [2021-06-05 10:36:44,019 INFO L226 Difference]: Without dead ends: 9134 [2021-06-05 10:36:44,019 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 2938.7ms TimeCoverageRelationStatistics Valid=542, Invalid=1620, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 10:36:44,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9134 states. [2021-06-05 10:36:44,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9134 to 4294. [2021-06-05 10:36:44,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4294 states, 4292 states have (on average 2.6707828518173344) internal successors, (11463), 4293 states have internal predecessors, (11463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:36:44,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4294 states to 4294 states and 11463 transitions. [2021-06-05 10:36:44,085 INFO L78 Accepts]: Start accepts. Automaton has 4294 states and 11463 transitions. Word has length 94 [2021-06-05 10:36:44,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:36:44,085 INFO L482 AbstractCegarLoop]: Abstraction has 4294 states and 11463 transitions. [2021-06-05 10:36:44,086 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:36:44,086 INFO L276 IsEmpty]: Start isEmpty. Operand 4294 states and 11463 transitions. [2021-06-05 10:36:44,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:36:44,089 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:36:44,089 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:36:44,089 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-06-05 10:36:44,089 INFO L430 AbstractCegarLoop]: === Iteration 111 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:36:44,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:36:44,089 INFO L82 PathProgramCache]: Analyzing trace with hash -506939853, now seen corresponding path program 105 times [2021-06-05 10:36:44,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:36:44,089 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96894855] [2021-06-05 10:36:44,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:36:44,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:36:44,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:36:44,608 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:36:44,608 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96894855] [2021-06-05 10:36:44,608 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96894855] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:36:44,608 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:36:44,609 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:36:44,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674749633] [2021-06-05 10:36:44,609 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:36:44,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:36:44,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:36:44,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:36:44,609 INFO L87 Difference]: Start difference. First operand 4294 states and 11463 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:36:45,850 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:36:46,022 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:36:46,204 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:36:46,389 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:36:46,611 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:36:46,795 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:36:47,027 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:36:47,380 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-06-05 10:36:47,527 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-06-05 10:36:47,665 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 10:36:47,811 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 10:36:47,931 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-06-05 10:36:48,089 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:36:48,237 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 10:36:48,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:36:48,247 INFO L93 Difference]: Finished difference Result 9200 states and 23132 transitions. [2021-06-05 10:36:48,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 10:36:48,247 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:36:48,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:36:48,254 INFO L225 Difference]: With dead ends: 9200 [2021-06-05 10:36:48,254 INFO L226 Difference]: Without dead ends: 9200 [2021-06-05 10:36:48,254 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 3144.5ms TimeCoverageRelationStatistics Valid=574, Invalid=1682, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 10:36:48,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9200 states. [2021-06-05 10:36:48,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9200 to 4290. [2021-06-05 10:36:48,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4290 states, 4288 states have (on average 2.6709421641791047) internal successors, (11453), 4289 states have internal predecessors, (11453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:36:48,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4290 states to 4290 states and 11453 transitions. [2021-06-05 10:36:48,318 INFO L78 Accepts]: Start accepts. Automaton has 4290 states and 11453 transitions. Word has length 94 [2021-06-05 10:36:48,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:36:48,319 INFO L482 AbstractCegarLoop]: Abstraction has 4290 states and 11453 transitions. [2021-06-05 10:36:48,319 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:36:48,319 INFO L276 IsEmpty]: Start isEmpty. Operand 4290 states and 11453 transitions. [2021-06-05 10:36:48,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:36:48,322 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:36:48,322 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:36:48,322 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-06-05 10:36:48,322 INFO L430 AbstractCegarLoop]: === Iteration 112 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:36:48,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:36:48,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1696554189, now seen corresponding path program 106 times [2021-06-05 10:36:48,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:36:48,323 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771793630] [2021-06-05 10:36:48,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:36:48,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:36:48,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:36:48,858 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:36:48,858 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771793630] [2021-06-05 10:36:48,858 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771793630] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:36:48,858 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:36:48,858 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:36:48,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658755130] [2021-06-05 10:36:48,858 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:36:48,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:36:48,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:36:48,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:36:48,858 INFO L87 Difference]: Start difference. First operand 4290 states and 11453 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:36:50,044 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:36:50,207 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:36:50,358 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:36:50,555 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:36:50,747 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:36:50,964 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:36:51,149 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:36:51,372 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:36:51,688 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-06-05 10:36:51,829 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-06-05 10:36:51,966 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 10:36:52,110 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 10:36:52,366 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:36:52,509 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 10:36:52,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:36:52,516 INFO L93 Difference]: Finished difference Result 8902 states and 22552 transitions. [2021-06-05 10:36:52,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 10:36:52,516 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:36:52,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:36:52,523 INFO L225 Difference]: With dead ends: 8902 [2021-06-05 10:36:52,523 INFO L226 Difference]: Without dead ends: 8902 [2021-06-05 10:36:52,523 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 3296.9ms TimeCoverageRelationStatistics Valid=605, Invalid=1747, Unknown=0, NotChecked=0, Total=2352 [2021-06-05 10:36:52,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8902 states. [2021-06-05 10:36:52,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8902 to 4288. [2021-06-05 10:36:52,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4288 states, 4286 states have (on average 2.6710219318712087) internal successors, (11448), 4287 states have internal predecessors, (11448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:36:52,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4288 states to 4288 states and 11448 transitions. [2021-06-05 10:36:52,592 INFO L78 Accepts]: Start accepts. Automaton has 4288 states and 11448 transitions. Word has length 94 [2021-06-05 10:36:52,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:36:52,592 INFO L482 AbstractCegarLoop]: Abstraction has 4288 states and 11448 transitions. [2021-06-05 10:36:52,592 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:36:52,592 INFO L276 IsEmpty]: Start isEmpty. Operand 4288 states and 11448 transitions. [2021-06-05 10:36:52,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:36:52,596 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:36:52,596 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:36:52,596 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-06-05 10:36:52,596 INFO L430 AbstractCegarLoop]: === Iteration 113 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:36:52,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:36:52,596 INFO L82 PathProgramCache]: Analyzing trace with hash -1287215983, now seen corresponding path program 107 times [2021-06-05 10:36:52,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:36:52,596 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344867049] [2021-06-05 10:36:52,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:36:52,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:36:53,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:36:53,159 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:36:53,159 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344867049] [2021-06-05 10:36:53,159 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344867049] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:36:53,159 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:36:53,159 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:36:53,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122864545] [2021-06-05 10:36:53,159 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:36:53,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:36:53,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:36:53,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:36:53,159 INFO L87 Difference]: Start difference. First operand 4288 states and 11448 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:36:54,036 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:36:54,207 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:36:54,353 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 10:36:54,539 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:36:54,738 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 10:36:54,957 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 10:36:55,135 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 10:36:55,367 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 10:36:55,716 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:36:55,914 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:36:56,160 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 10:36:56,348 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:36:56,577 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 10:36:56,946 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 10:36:57,152 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 10:36:57,310 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 10:36:57,519 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2021-06-05 10:36:57,686 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-06-05 10:36:57,905 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2021-06-05 10:36:58,067 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-06-05 10:36:58,276 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2021-06-05 10:36:58,441 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:36:58,662 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 10:36:58,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:36:58,672 INFO L93 Difference]: Finished difference Result 9335 states and 23764 transitions. [2021-06-05 10:36:58,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 10:36:58,673 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:36:58,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:36:58,679 INFO L225 Difference]: With dead ends: 9335 [2021-06-05 10:36:58,679 INFO L226 Difference]: Without dead ends: 9335 [2021-06-05 10:36:58,679 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 4974.9ms TimeCoverageRelationStatistics Valid=882, Invalid=2198, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 10:36:58,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9335 states. [2021-06-05 10:36:58,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9335 to 4336. [2021-06-05 10:36:58,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4336 states, 4334 states have (on average 2.6746654360867557) internal successors, (11592), 4335 states have internal predecessors, (11592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:36:58,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4336 states to 4336 states and 11592 transitions. [2021-06-05 10:36:58,749 INFO L78 Accepts]: Start accepts. Automaton has 4336 states and 11592 transitions. Word has length 94 [2021-06-05 10:36:58,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:36:58,749 INFO L482 AbstractCegarLoop]: Abstraction has 4336 states and 11592 transitions. [2021-06-05 10:36:58,749 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:36:58,749 INFO L276 IsEmpty]: Start isEmpty. Operand 4336 states and 11592 transitions. [2021-06-05 10:36:58,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:36:58,753 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:36:58,753 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:36:58,753 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-06-05 10:36:58,753 INFO L430 AbstractCegarLoop]: === Iteration 114 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:36:58,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:36:58,754 INFO L82 PathProgramCache]: Analyzing trace with hash -249396085, now seen corresponding path program 108 times [2021-06-05 10:36:58,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:36:58,754 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582093800] [2021-06-05 10:36:58,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:36:58,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:36:59,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:36:59,296 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:36:59,296 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582093800] [2021-06-05 10:36:59,296 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582093800] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:36:59,296 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:36:59,297 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:36:59,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153436998] [2021-06-05 10:36:59,297 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:36:59,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:36:59,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:36:59,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:36:59,297 INFO L87 Difference]: Start difference. First operand 4336 states and 11592 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:00,173 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:37:00,343 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:37:00,488 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 10:37:00,672 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:37:00,868 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 10:37:01,106 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 10:37:01,478 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:37:01,659 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:37:01,855 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:37:02,070 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:37:02,259 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:37:02,494 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:37:02,881 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 10:37:03,067 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-06-05 10:37:03,227 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 10:37:03,420 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-06-05 10:37:03,588 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-06-05 10:37:03,791 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-06-05 10:37:03,999 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:37:04,153 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-06-05 10:37:04,345 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 10:37:04,510 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:37:04,696 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:37:04,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:37:04,707 INFO L93 Difference]: Finished difference Result 9604 states and 24224 transitions. [2021-06-05 10:37:04,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 10:37:04,707 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:37:04,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:37:04,714 INFO L225 Difference]: With dead ends: 9604 [2021-06-05 10:37:04,715 INFO L226 Difference]: Without dead ends: 9604 [2021-06-05 10:37:04,715 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 4848.2ms TimeCoverageRelationStatistics Valid=865, Invalid=2215, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 10:37:04,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9604 states. [2021-06-05 10:37:04,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9604 to 4324. [2021-06-05 10:37:04,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4324 states, 4322 states have (on average 2.6737621471540955) internal successors, (11556), 4323 states have internal predecessors, (11556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:04,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4324 states to 4324 states and 11556 transitions. [2021-06-05 10:37:04,786 INFO L78 Accepts]: Start accepts. Automaton has 4324 states and 11556 transitions. Word has length 94 [2021-06-05 10:37:04,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:37:04,786 INFO L482 AbstractCegarLoop]: Abstraction has 4324 states and 11556 transitions. [2021-06-05 10:37:04,786 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:04,786 INFO L276 IsEmpty]: Start isEmpty. Operand 4324 states and 11556 transitions. [2021-06-05 10:37:04,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:37:04,790 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:37:04,790 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:37:04,790 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-06-05 10:37:04,790 INFO L430 AbstractCegarLoop]: === Iteration 115 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:37:04,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:37:04,790 INFO L82 PathProgramCache]: Analyzing trace with hash 2080541909, now seen corresponding path program 109 times [2021-06-05 10:37:04,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:37:04,791 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366648771] [2021-06-05 10:37:04,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:37:04,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:37:05,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:37:05,327 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:37:05,327 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366648771] [2021-06-05 10:37:05,327 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366648771] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:37:05,327 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:37:05,327 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:37:05,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547579175] [2021-06-05 10:37:05,327 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:37:05,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:37:05,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:37:05,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:37:05,328 INFO L87 Difference]: Start difference. First operand 4324 states and 11556 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:06,216 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:37:06,384 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:37:06,552 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 10:37:06,735 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:37:07,171 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:37:07,322 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:37:07,502 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:37:07,698 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:37:07,913 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:37:08,099 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:37:08,324 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:37:08,722 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 10:37:08,889 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 10:37:09,046 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 10:37:09,243 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 10:37:09,410 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-06-05 10:37:09,593 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 10:37:09,756 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:37:09,909 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-06-05 10:37:10,079 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-06-05 10:37:10,245 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:37:10,412 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:37:10,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:37:10,423 INFO L93 Difference]: Finished difference Result 9648 states and 24322 transitions. [2021-06-05 10:37:10,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-05 10:37:10,423 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:37:10,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:37:10,429 INFO L225 Difference]: With dead ends: 9648 [2021-06-05 10:37:10,429 INFO L226 Difference]: Without dead ends: 9648 [2021-06-05 10:37:10,429 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 4535.7ms TimeCoverageRelationStatistics Valid=817, Invalid=2153, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 10:37:10,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9648 states. [2021-06-05 10:37:10,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9648 to 4300. [2021-06-05 10:37:10,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4300 states, 4298 states have (on average 2.6719404374127502) internal successors, (11484), 4299 states have internal predecessors, (11484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:10,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4300 states to 4300 states and 11484 transitions. [2021-06-05 10:37:10,494 INFO L78 Accepts]: Start accepts. Automaton has 4300 states and 11484 transitions. Word has length 94 [2021-06-05 10:37:10,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:37:10,494 INFO L482 AbstractCegarLoop]: Abstraction has 4300 states and 11484 transitions. [2021-06-05 10:37:10,494 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:10,494 INFO L276 IsEmpty]: Start isEmpty. Operand 4300 states and 11484 transitions. [2021-06-05 10:37:10,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:37:10,498 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:37:10,498 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:37:10,498 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-06-05 10:37:10,498 INFO L430 AbstractCegarLoop]: === Iteration 116 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:37:10,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:37:10,498 INFO L82 PathProgramCache]: Analyzing trace with hash -21423241, now seen corresponding path program 110 times [2021-06-05 10:37:10,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:37:10,498 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211952436] [2021-06-05 10:37:10,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:37:10,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:37:11,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:37:11,048 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:37:11,048 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211952436] [2021-06-05 10:37:11,048 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211952436] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:37:11,048 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:37:11,048 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:37:11,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929740274] [2021-06-05 10:37:11,048 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:37:11,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:37:11,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:37:11,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:37:11,048 INFO L87 Difference]: Start difference. First operand 4300 states and 11484 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:11,800 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-06-05 10:37:11,954 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:37:12,122 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 10:37:12,501 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:37:12,661 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:37:12,813 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:37:12,996 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:37:13,187 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:37:13,402 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:37:13,588 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:37:13,812 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:37:14,167 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 10:37:14,326 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 10:37:14,492 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-06-05 10:37:14,653 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:37:14,809 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-06-05 10:37:14,973 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:37:14,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:37:14,980 INFO L93 Difference]: Finished difference Result 8252 states and 20990 transitions. [2021-06-05 10:37:14,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 10:37:14,980 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:37:14,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:37:14,986 INFO L225 Difference]: With dead ends: 8252 [2021-06-05 10:37:14,986 INFO L226 Difference]: Without dead ends: 8252 [2021-06-05 10:37:14,986 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 3490.8ms TimeCoverageRelationStatistics Valid=620, Invalid=1732, Unknown=0, NotChecked=0, Total=2352 [2021-06-05 10:37:14,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8252 states. [2021-06-05 10:37:15,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8252 to 4276. [2021-06-05 10:37:15,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4274 states have (on average 2.6700982686008423) internal successors, (11412), 4275 states have internal predecessors, (11412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:15,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 11412 transitions. [2021-06-05 10:37:15,049 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 11412 transitions. Word has length 94 [2021-06-05 10:37:15,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:37:15,050 INFO L482 AbstractCegarLoop]: Abstraction has 4276 states and 11412 transitions. [2021-06-05 10:37:15,050 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:15,050 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 11412 transitions. [2021-06-05 10:37:15,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:37:15,053 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:37:15,053 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:37:15,053 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-06-05 10:37:15,053 INFO L430 AbstractCegarLoop]: === Iteration 117 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:37:15,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:37:15,053 INFO L82 PathProgramCache]: Analyzing trace with hash -508184993, now seen corresponding path program 111 times [2021-06-05 10:37:15,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:37:15,054 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394915874] [2021-06-05 10:37:15,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:37:15,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:37:15,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:37:15,526 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:37:15,526 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394915874] [2021-06-05 10:37:15,526 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394915874] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:37:15,526 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:37:15,526 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:37:15,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010857819] [2021-06-05 10:37:15,527 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:37:15,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:37:15,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:37:15,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:37:15,527 INFO L87 Difference]: Start difference. First operand 4276 states and 11412 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:16,626 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-06-05 10:37:16,785 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2021-06-05 10:37:16,992 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 10:37:17,228 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 10:37:17,454 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 10:37:18,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:37:18,330 INFO L93 Difference]: Finished difference Result 6860 states and 17526 transitions. [2021-06-05 10:37:18,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:37:18,330 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:37:18,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:37:18,336 INFO L225 Difference]: With dead ends: 6860 [2021-06-05 10:37:18,336 INFO L226 Difference]: Without dead ends: 6860 [2021-06-05 10:37:18,336 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 2476.0ms TimeCoverageRelationStatistics Valid=479, Invalid=1591, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 10:37:18,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6860 states. [2021-06-05 10:37:18,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6860 to 4296. [2021-06-05 10:37:18,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4296 states, 4294 states have (on average 2.669306008383791) internal successors, (11462), 4295 states have internal predecessors, (11462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:18,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4296 states to 4296 states and 11462 transitions. [2021-06-05 10:37:18,395 INFO L78 Accepts]: Start accepts. Automaton has 4296 states and 11462 transitions. Word has length 94 [2021-06-05 10:37:18,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:37:18,395 INFO L482 AbstractCegarLoop]: Abstraction has 4296 states and 11462 transitions. [2021-06-05 10:37:18,395 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:18,395 INFO L276 IsEmpty]: Start isEmpty. Operand 4296 states and 11462 transitions. [2021-06-05 10:37:18,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:37:18,398 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:37:18,399 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:37:18,399 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-06-05 10:37:18,399 INFO L430 AbstractCegarLoop]: === Iteration 118 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:37:18,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:37:18,399 INFO L82 PathProgramCache]: Analyzing trace with hash -567853577, now seen corresponding path program 112 times [2021-06-05 10:37:18,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:37:18,399 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839944874] [2021-06-05 10:37:18,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:37:18,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:37:18,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:37:18,875 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:37:18,875 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839944874] [2021-06-05 10:37:18,876 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839944874] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:37:18,876 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:37:18,876 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:37:18,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240601744] [2021-06-05 10:37:18,876 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:37:18,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:37:18,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:37:18,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:37:18,876 INFO L87 Difference]: Start difference. First operand 4296 states and 11462 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:19,987 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-06-05 10:37:20,165 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:37:20,351 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 10:37:20,577 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 10:37:20,801 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 10:37:21,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:37:21,712 INFO L93 Difference]: Finished difference Result 7338 states and 18462 transitions. [2021-06-05 10:37:21,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:37:21,713 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:37:21,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:37:21,719 INFO L225 Difference]: With dead ends: 7338 [2021-06-05 10:37:21,719 INFO L226 Difference]: Without dead ends: 7338 [2021-06-05 10:37:21,720 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 2482.0ms TimeCoverageRelationStatistics Valid=479, Invalid=1591, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 10:37:21,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7338 states. [2021-06-05 10:37:21,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7338 to 4298. [2021-06-05 10:37:21,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4298 states, 4296 states have (on average 2.6692271880819365) internal successors, (11467), 4297 states have internal predecessors, (11467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:21,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4298 states to 4298 states and 11467 transitions. [2021-06-05 10:37:21,783 INFO L78 Accepts]: Start accepts. Automaton has 4298 states and 11467 transitions. Word has length 94 [2021-06-05 10:37:21,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:37:21,783 INFO L482 AbstractCegarLoop]: Abstraction has 4298 states and 11467 transitions. [2021-06-05 10:37:21,783 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:21,783 INFO L276 IsEmpty]: Start isEmpty. Operand 4298 states and 11467 transitions. [2021-06-05 10:37:21,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:37:21,786 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:37:21,786 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:37:21,787 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-06-05 10:37:21,787 INFO L430 AbstractCegarLoop]: === Iteration 119 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:37:21,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:37:21,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1113160169, now seen corresponding path program 113 times [2021-06-05 10:37:21,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:37:21,787 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571657873] [2021-06-05 10:37:21,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:37:21,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:37:22,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:37:22,306 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:37:22,306 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571657873] [2021-06-05 10:37:22,306 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571657873] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:37:22,306 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:37:22,306 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:37:22,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267962257] [2021-06-05 10:37:22,306 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:37:22,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:37:22,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:37:22,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:37:22,307 INFO L87 Difference]: Start difference. First operand 4298 states and 11467 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:23,409 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-06-05 10:37:23,596 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:37:23,793 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-06-05 10:37:24,007 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2021-06-05 10:37:24,190 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 10:37:24,411 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:37:25,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:37:25,357 INFO L93 Difference]: Finished difference Result 7136 states and 18058 transitions. [2021-06-05 10:37:25,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 10:37:25,358 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:37:25,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:37:25,362 INFO L225 Difference]: With dead ends: 7136 [2021-06-05 10:37:25,362 INFO L226 Difference]: Without dead ends: 7136 [2021-06-05 10:37:25,363 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 2713.4ms TimeCoverageRelationStatistics Valid=512, Invalid=1650, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 10:37:25,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7136 states. [2021-06-05 10:37:25,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7136 to 4292. [2021-06-05 10:37:25,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4292 states, 4290 states have (on average 2.6694638694638693) internal successors, (11452), 4291 states have internal predecessors, (11452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:25,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4292 states to 4292 states and 11452 transitions. [2021-06-05 10:37:25,418 INFO L78 Accepts]: Start accepts. Automaton has 4292 states and 11452 transitions. Word has length 94 [2021-06-05 10:37:25,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:37:25,418 INFO L482 AbstractCegarLoop]: Abstraction has 4292 states and 11452 transitions. [2021-06-05 10:37:25,418 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:25,418 INFO L276 IsEmpty]: Start isEmpty. Operand 4292 states and 11452 transitions. [2021-06-05 10:37:25,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:37:25,422 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:37:25,422 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:37:25,422 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-06-05 10:37:25,422 INFO L430 AbstractCegarLoop]: === Iteration 120 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:37:25,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:37:25,422 INFO L82 PathProgramCache]: Analyzing trace with hash -320285473, now seen corresponding path program 114 times [2021-06-05 10:37:25,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:37:25,422 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321677982] [2021-06-05 10:37:25,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:37:25,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:37:25,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:37:25,933 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:37:25,933 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321677982] [2021-06-05 10:37:25,933 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321677982] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:37:25,933 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:37:25,933 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:37:25,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052390878] [2021-06-05 10:37:25,933 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:37:25,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:37:25,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:37:25,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:37:25,934 INFO L87 Difference]: Start difference. First operand 4292 states and 11452 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:26,994 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:37:27,181 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:37:27,368 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 10:37:27,589 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 10:37:27,828 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 10:37:28,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:37:28,717 INFO L93 Difference]: Finished difference Result 7410 states and 18621 transitions. [2021-06-05 10:37:28,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:37:28,718 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:37:28,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:37:28,723 INFO L225 Difference]: With dead ends: 7410 [2021-06-05 10:37:28,723 INFO L226 Difference]: Without dead ends: 7410 [2021-06-05 10:37:28,724 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 2514.2ms TimeCoverageRelationStatistics Valid=479, Invalid=1591, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 10:37:28,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7410 states. [2021-06-05 10:37:28,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7410 to 4298. [2021-06-05 10:37:28,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4298 states, 4296 states have (on average 2.6692271880819365) internal successors, (11467), 4297 states have internal predecessors, (11467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:28,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4298 states to 4298 states and 11467 transitions. [2021-06-05 10:37:28,783 INFO L78 Accepts]: Start accepts. Automaton has 4298 states and 11467 transitions. Word has length 94 [2021-06-05 10:37:28,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:37:28,784 INFO L482 AbstractCegarLoop]: Abstraction has 4298 states and 11467 transitions. [2021-06-05 10:37:28,784 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:28,784 INFO L276 IsEmpty]: Start isEmpty. Operand 4298 states and 11467 transitions. [2021-06-05 10:37:28,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:37:28,787 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:37:28,787 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:37:28,787 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-06-05 10:37:28,787 INFO L430 AbstractCegarLoop]: === Iteration 121 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:37:28,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:37:28,788 INFO L82 PathProgramCache]: Analyzing trace with hash 1360728273, now seen corresponding path program 115 times [2021-06-05 10:37:28,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:37:28,788 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525908712] [2021-06-05 10:37:28,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:37:28,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:37:29,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:37:29,301 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:37:29,301 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525908712] [2021-06-05 10:37:29,301 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525908712] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:37:29,301 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:37:29,301 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:37:29,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981546450] [2021-06-05 10:37:29,302 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:37:29,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:37:29,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:37:29,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:37:29,302 INFO L87 Difference]: Start difference. First operand 4298 states and 11467 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:30,391 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:37:30,579 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:37:30,772 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:37:30,981 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:37:31,163 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:37:31,384 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:37:32,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:37:32,325 INFO L93 Difference]: Finished difference Result 7684 states and 19148 transitions. [2021-06-05 10:37:32,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 10:37:32,325 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:37:32,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:37:32,331 INFO L225 Difference]: With dead ends: 7684 [2021-06-05 10:37:32,331 INFO L226 Difference]: Without dead ends: 7684 [2021-06-05 10:37:32,331 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 2698.2ms TimeCoverageRelationStatistics Valid=512, Invalid=1650, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 10:37:32,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7684 states. [2021-06-05 10:37:32,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7684 to 4296. [2021-06-05 10:37:32,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4296 states, 4294 states have (on average 2.669306008383791) internal successors, (11462), 4295 states have internal predecessors, (11462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:32,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4296 states to 4296 states and 11462 transitions. [2021-06-05 10:37:32,393 INFO L78 Accepts]: Start accepts. Automaton has 4296 states and 11462 transitions. Word has length 94 [2021-06-05 10:37:32,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:37:32,393 INFO L482 AbstractCegarLoop]: Abstraction has 4296 states and 11462 transitions. [2021-06-05 10:37:32,393 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:32,393 INFO L276 IsEmpty]: Start isEmpty. Operand 4296 states and 11462 transitions. [2021-06-05 10:37:32,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:37:32,397 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:37:32,397 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:37:32,397 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-06-05 10:37:32,397 INFO L430 AbstractCegarLoop]: === Iteration 122 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:37:32,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:37:32,397 INFO L82 PathProgramCache]: Analyzing trace with hash -1843945701, now seen corresponding path program 116 times [2021-06-05 10:37:32,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:37:32,397 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781218316] [2021-06-05 10:37:32,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:37:32,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:37:32,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:37:32,961 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:37:32,961 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781218316] [2021-06-05 10:37:32,961 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781218316] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:37:32,961 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:37:32,961 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:37:32,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382164941] [2021-06-05 10:37:32,961 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:37:32,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:37:32,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:37:32,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:37:32,962 INFO L87 Difference]: Start difference. First operand 4296 states and 11462 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:34,031 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:37:34,208 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:37:34,396 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:37:34,587 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:37:34,801 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:37:34,981 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:37:35,208 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:37:35,726 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-06-05 10:37:36,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:37:36,149 INFO L93 Difference]: Finished difference Result 7206 states and 18212 transitions. [2021-06-05 10:37:36,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 10:37:36,149 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:37:36,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:37:36,155 INFO L225 Difference]: With dead ends: 7206 [2021-06-05 10:37:36,155 INFO L226 Difference]: Without dead ends: 7206 [2021-06-05 10:37:36,155 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 2920.0ms TimeCoverageRelationStatistics Valid=544, Invalid=1712, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 10:37:36,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7206 states. [2021-06-05 10:37:36,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7206 to 4284. [2021-06-05 10:37:36,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4284 states, 4282 states have (on average 2.669780476412891) internal successors, (11432), 4283 states have internal predecessors, (11432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:36,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4284 states to 4284 states and 11432 transitions. [2021-06-05 10:37:36,212 INFO L78 Accepts]: Start accepts. Automaton has 4284 states and 11432 transitions. Word has length 94 [2021-06-05 10:37:36,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:37:36,212 INFO L482 AbstractCegarLoop]: Abstraction has 4284 states and 11432 transitions. [2021-06-05 10:37:36,213 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:36,213 INFO L276 IsEmpty]: Start isEmpty. Operand 4284 states and 11432 transitions. [2021-06-05 10:37:36,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:37:36,216 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:37:36,216 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:37:36,216 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-06-05 10:37:36,216 INFO L430 AbstractCegarLoop]: === Iteration 123 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:37:36,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:37:36,217 INFO L82 PathProgramCache]: Analyzing trace with hash -304114657, now seen corresponding path program 117 times [2021-06-05 10:37:36,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:37:36,217 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026435195] [2021-06-05 10:37:36,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:37:36,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:37:36,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:37:36,706 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:37:36,706 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026435195] [2021-06-05 10:37:36,706 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026435195] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:37:36,706 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:37:36,706 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:37:36,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80693855] [2021-06-05 10:37:36,706 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:37:36,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:37:36,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:37:36,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:37:36,707 INFO L87 Difference]: Start difference. First operand 4284 states and 11432 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:37,671 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-06-05 10:37:37,819 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:37:38,014 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:37:38,204 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 10:37:38,445 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 10:37:38,671 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 10:37:39,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:37:39,594 INFO L93 Difference]: Finished difference Result 7482 states and 18780 transitions. [2021-06-05 10:37:39,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:37:39,595 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:37:39,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:37:39,601 INFO L225 Difference]: With dead ends: 7482 [2021-06-05 10:37:39,601 INFO L226 Difference]: Without dead ends: 7482 [2021-06-05 10:37:39,601 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 2511.3ms TimeCoverageRelationStatistics Valid=479, Invalid=1591, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 10:37:39,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7482 states. [2021-06-05 10:37:39,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7482 to 4292. [2021-06-05 10:37:39,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4292 states, 4290 states have (on average 2.6694638694638693) internal successors, (11452), 4291 states have internal predecessors, (11452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:39,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4292 states to 4292 states and 11452 transitions. [2021-06-05 10:37:39,664 INFO L78 Accepts]: Start accepts. Automaton has 4292 states and 11452 transitions. Word has length 94 [2021-06-05 10:37:39,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:37:39,664 INFO L482 AbstractCegarLoop]: Abstraction has 4292 states and 11452 transitions. [2021-06-05 10:37:39,664 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:39,664 INFO L276 IsEmpty]: Start isEmpty. Operand 4292 states and 11452 transitions. [2021-06-05 10:37:39,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:37:39,668 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:37:39,668 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:37:39,668 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-06-05 10:37:39,668 INFO L430 AbstractCegarLoop]: === Iteration 124 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:37:39,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:37:39,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1376899089, now seen corresponding path program 118 times [2021-06-05 10:37:39,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:37:39,668 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460066461] [2021-06-05 10:37:39,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:37:39,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:37:40,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:37:40,164 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:37:40,164 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460066461] [2021-06-05 10:37:40,164 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460066461] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:37:40,164 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:37:40,164 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:37:40,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379201117] [2021-06-05 10:37:40,164 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:37:40,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:37:40,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:37:40,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:37:40,164 INFO L87 Difference]: Start difference. First operand 4292 states and 11452 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:40,993 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2021-06-05 10:37:41,284 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:37:41,481 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:37:41,679 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:37:41,890 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:37:42,072 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:37:42,299 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:37:43,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:37:43,254 INFO L93 Difference]: Finished difference Result 7756 states and 19307 transitions. [2021-06-05 10:37:43,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 10:37:43,255 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:37:43,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:37:43,261 INFO L225 Difference]: With dead ends: 7756 [2021-06-05 10:37:43,262 INFO L226 Difference]: Without dead ends: 7756 [2021-06-05 10:37:43,262 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 2694.0ms TimeCoverageRelationStatistics Valid=512, Invalid=1650, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 10:37:43,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7756 states. [2021-06-05 10:37:43,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7756 to 4290. [2021-06-05 10:37:43,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4290 states, 4288 states have (on average 2.669542910447761) internal successors, (11447), 4289 states have internal predecessors, (11447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:43,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4290 states to 4290 states and 11447 transitions. [2021-06-05 10:37:43,325 INFO L78 Accepts]: Start accepts. Automaton has 4290 states and 11447 transitions. Word has length 94 [2021-06-05 10:37:43,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:37:43,326 INFO L482 AbstractCegarLoop]: Abstraction has 4290 states and 11447 transitions. [2021-06-05 10:37:43,326 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:43,326 INFO L276 IsEmpty]: Start isEmpty. Operand 4290 states and 11447 transitions. [2021-06-05 10:37:43,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:37:43,329 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:37:43,329 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:37:43,329 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-06-05 10:37:43,329 INFO L430 AbstractCegarLoop]: === Iteration 125 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:37:43,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:37:43,329 INFO L82 PathProgramCache]: Analyzing trace with hash -1827774885, now seen corresponding path program 119 times [2021-06-05 10:37:43,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:37:43,330 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308173490] [2021-06-05 10:37:43,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:37:43,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:37:43,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:37:43,894 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:37:43,894 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308173490] [2021-06-05 10:37:43,894 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308173490] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:37:43,894 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:37:43,894 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:37:43,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971471121] [2021-06-05 10:37:43,894 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:37:43,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:37:43,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:37:43,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:37:43,895 INFO L87 Difference]: Start difference. First operand 4290 states and 11447 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:44,974 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:37:45,155 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:37:45,346 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:37:45,536 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:37:45,753 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:37:45,937 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:37:46,170 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:37:47,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:37:47,124 INFO L93 Difference]: Finished difference Result 7822 states and 19451 transitions. [2021-06-05 10:37:47,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 10:37:47,124 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:37:47,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:37:47,130 INFO L225 Difference]: With dead ends: 7822 [2021-06-05 10:37:47,130 INFO L226 Difference]: Without dead ends: 7822 [2021-06-05 10:37:47,130 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 2913.1ms TimeCoverageRelationStatistics Valid=544, Invalid=1712, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 10:37:47,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7822 states. [2021-06-05 10:37:47,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7822 to 4286. [2021-06-05 10:37:47,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4286 states, 4284 states have (on average 2.6697012138188607) internal successors, (11437), 4285 states have internal predecessors, (11437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:47,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4286 states to 4286 states and 11437 transitions. [2021-06-05 10:37:47,192 INFO L78 Accepts]: Start accepts. Automaton has 4286 states and 11437 transitions. Word has length 94 [2021-06-05 10:37:47,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:37:47,192 INFO L482 AbstractCegarLoop]: Abstraction has 4286 states and 11437 transitions. [2021-06-05 10:37:47,192 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:47,192 INFO L276 IsEmpty]: Start isEmpty. Operand 4286 states and 11437 transitions. [2021-06-05 10:37:47,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:37:47,196 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:37:47,196 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:37:47,196 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-06-05 10:37:47,196 INFO L430 AbstractCegarLoop]: === Iteration 126 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:37:47,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:37:47,196 INFO L82 PathProgramCache]: Analyzing trace with hash 1619052793, now seen corresponding path program 120 times [2021-06-05 10:37:47,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:37:47,196 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780249041] [2021-06-05 10:37:47,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:37:47,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:37:47,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:37:47,723 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:37:47,723 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780249041] [2021-06-05 10:37:47,723 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780249041] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:37:47,723 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:37:47,723 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:37:47,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702219613] [2021-06-05 10:37:47,723 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:37:47,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:37:47,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:37:47,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:37:47,724 INFO L87 Difference]: Start difference. First operand 4286 states and 11437 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:48,732 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-06-05 10:37:48,897 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:37:49,088 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:37:49,241 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:37:49,431 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:37:49,640 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:37:49,870 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:37:50,058 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:37:50,295 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:37:51,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:37:51,247 INFO L93 Difference]: Finished difference Result 7274 states and 18361 transitions. [2021-06-05 10:37:51,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 10:37:51,248 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:37:51,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:37:51,254 INFO L225 Difference]: With dead ends: 7274 [2021-06-05 10:37:51,254 INFO L226 Difference]: Without dead ends: 7274 [2021-06-05 10:37:51,254 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 3066.6ms TimeCoverageRelationStatistics Valid=575, Invalid=1777, Unknown=0, NotChecked=0, Total=2352 [2021-06-05 10:37:51,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7274 states. [2021-06-05 10:37:51,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7274 to 4280. [2021-06-05 10:37:51,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4280 states, 4278 states have (on average 2.669939223936419) internal successors, (11422), 4279 states have internal predecessors, (11422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:51,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4280 states to 4280 states and 11422 transitions. [2021-06-05 10:37:51,317 INFO L78 Accepts]: Start accepts. Automaton has 4280 states and 11422 transitions. Word has length 94 [2021-06-05 10:37:51,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:37:51,317 INFO L482 AbstractCegarLoop]: Abstraction has 4280 states and 11422 transitions. [2021-06-05 10:37:51,317 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:51,317 INFO L276 IsEmpty]: Start isEmpty. Operand 4280 states and 11422 transitions. [2021-06-05 10:37:51,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:37:51,321 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:37:51,321 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:37:51,321 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-06-05 10:37:51,321 INFO L430 AbstractCegarLoop]: === Iteration 127 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:37:51,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:37:51,321 INFO L82 PathProgramCache]: Analyzing trace with hash -619004041, now seen corresponding path program 121 times [2021-06-05 10:37:51,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:37:51,321 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790700925] [2021-06-05 10:37:51,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:37:51,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:37:51,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:37:51,852 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:37:51,852 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790700925] [2021-06-05 10:37:51,853 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790700925] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:37:51,853 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:37:51,853 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:37:51,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208325379] [2021-06-05 10:37:51,853 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:37:51,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:37:51,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:37:51,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:37:51,853 INFO L87 Difference]: Start difference. First operand 4280 states and 11422 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:52,957 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:37:53,144 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:37:53,328 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 10:37:53,547 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 10:37:53,769 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 10:37:54,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:37:54,689 INFO L93 Difference]: Finished difference Result 6952 states and 17623 transitions. [2021-06-05 10:37:54,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:37:54,689 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:37:54,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:37:54,694 INFO L225 Difference]: With dead ends: 6952 [2021-06-05 10:37:54,694 INFO L226 Difference]: Without dead ends: 6952 [2021-06-05 10:37:54,695 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 2555.6ms TimeCoverageRelationStatistics Valid=479, Invalid=1591, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 10:37:54,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6952 states. [2021-06-05 10:37:54,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6952 to 4290. [2021-06-05 10:37:54,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4290 states, 4288 states have (on average 2.669542910447761) internal successors, (11447), 4289 states have internal predecessors, (11447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:54,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4290 states to 4290 states and 11447 transitions. [2021-06-05 10:37:54,758 INFO L78 Accepts]: Start accepts. Automaton has 4290 states and 11447 transitions. Word has length 94 [2021-06-05 10:37:54,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:37:54,758 INFO L482 AbstractCegarLoop]: Abstraction has 4290 states and 11447 transitions. [2021-06-05 10:37:54,759 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:54,759 INFO L276 IsEmpty]: Start isEmpty. Operand 4290 states and 11447 transitions. [2021-06-05 10:37:54,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:37:54,763 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:37:54,763 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:37:54,763 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-06-05 10:37:54,763 INFO L430 AbstractCegarLoop]: === Iteration 128 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:37:54,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:37:54,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1062009705, now seen corresponding path program 122 times [2021-06-05 10:37:54,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:37:54,764 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570892528] [2021-06-05 10:37:54,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:37:54,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:37:55,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:37:55,266 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:37:55,266 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570892528] [2021-06-05 10:37:55,266 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570892528] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:37:55,266 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:37:55,266 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:37:55,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016690493] [2021-06-05 10:37:55,267 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:37:55,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:37:55,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:37:55,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:37:55,267 INFO L87 Difference]: Start difference. First operand 4290 states and 11447 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:56,203 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-06-05 10:37:56,354 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:37:56,544 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:37:56,743 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:37:56,958 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:37:57,179 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:37:57,402 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:37:58,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:37:58,331 INFO L93 Difference]: Finished difference Result 7226 states and 18150 transitions. [2021-06-05 10:37:58,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 10:37:58,331 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:37:58,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:37:58,337 INFO L225 Difference]: With dead ends: 7226 [2021-06-05 10:37:58,338 INFO L226 Difference]: Without dead ends: 7226 [2021-06-05 10:37:58,338 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 2747.3ms TimeCoverageRelationStatistics Valid=512, Invalid=1650, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 10:37:58,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7226 states. [2021-06-05 10:37:58,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7226 to 4288. [2021-06-05 10:37:58,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4288 states, 4286 states have (on average 2.6696220251983203) internal successors, (11442), 4287 states have internal predecessors, (11442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:58,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4288 states to 4288 states and 11442 transitions. [2021-06-05 10:37:58,407 INFO L78 Accepts]: Start accepts. Automaton has 4288 states and 11442 transitions. Word has length 94 [2021-06-05 10:37:58,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:37:58,408 INFO L482 AbstractCegarLoop]: Abstraction has 4288 states and 11442 transitions. [2021-06-05 10:37:58,408 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:58,408 INFO L276 IsEmpty]: Start isEmpty. Operand 4288 states and 11442 transitions. [2021-06-05 10:37:58,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:37:58,412 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:37:58,412 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:37:58,412 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-06-05 10:37:58,412 INFO L430 AbstractCegarLoop]: === Iteration 129 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:37:58,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:37:58,412 INFO L82 PathProgramCache]: Analyzing trace with hash -2142664269, now seen corresponding path program 123 times [2021-06-05 10:37:58,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:37:58,413 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350214058] [2021-06-05 10:37:58,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:37:58,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:37:58,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:37:58,926 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:37:58,926 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350214058] [2021-06-05 10:37:58,926 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350214058] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:37:58,926 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:37:58,926 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:37:58,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057272254] [2021-06-05 10:37:58,926 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:37:58,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:37:58,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:37:58,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:37:58,927 INFO L87 Difference]: Start difference. First operand 4288 states and 11442 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:37:59,748 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-06-05 10:38:00,026 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:38:00,203 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:38:00,390 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:38:00,580 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:38:00,798 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:38:00,982 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:38:01,213 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:38:02,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:38:02,128 INFO L93 Difference]: Finished difference Result 7292 states and 18294 transitions. [2021-06-05 10:38:02,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 10:38:02,128 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:38:02,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:38:02,134 INFO L225 Difference]: With dead ends: 7292 [2021-06-05 10:38:02,134 INFO L226 Difference]: Without dead ends: 7292 [2021-06-05 10:38:02,135 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 2900.0ms TimeCoverageRelationStatistics Valid=544, Invalid=1712, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 10:38:02,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7292 states. [2021-06-05 10:38:02,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7292 to 4284. [2021-06-05 10:38:02,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4284 states, 4282 states have (on average 2.669780476412891) internal successors, (11432), 4283 states have internal predecessors, (11432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:02,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4284 states to 4284 states and 11432 transitions. [2021-06-05 10:38:02,197 INFO L78 Accepts]: Start accepts. Automaton has 4284 states and 11432 transitions. Word has length 94 [2021-06-05 10:38:02,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:38:02,198 INFO L482 AbstractCegarLoop]: Abstraction has 4284 states and 11432 transitions. [2021-06-05 10:38:02,198 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:02,198 INFO L276 IsEmpty]: Start isEmpty. Operand 4284 states and 11432 transitions. [2021-06-05 10:38:02,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:38:02,201 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:38:02,201 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:38:02,202 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-06-05 10:38:02,202 INFO L430 AbstractCegarLoop]: === Iteration 130 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:38:02,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:38:02,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1304163409, now seen corresponding path program 124 times [2021-06-05 10:38:02,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:38:02,202 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765350349] [2021-06-05 10:38:02,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:38:02,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:38:02,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:38:02,763 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:38:02,763 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765350349] [2021-06-05 10:38:02,763 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765350349] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:38:02,764 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:38:02,764 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:38:02,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089298692] [2021-06-05 10:38:02,764 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:38:02,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:38:02,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:38:02,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:38:02,764 INFO L87 Difference]: Start difference. First operand 4284 states and 11432 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:03,869 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:38:04,039 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:38:04,191 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:38:04,378 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:38:04,580 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:38:04,804 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:38:04,992 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:38:05,239 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:38:06,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:38:06,169 INFO L93 Difference]: Finished difference Result 7358 states and 18438 transitions. [2021-06-05 10:38:06,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 10:38:06,170 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:38:06,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:38:06,175 INFO L225 Difference]: With dead ends: 7358 [2021-06-05 10:38:06,176 INFO L226 Difference]: Without dead ends: 7358 [2021-06-05 10:38:06,176 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 3059.2ms TimeCoverageRelationStatistics Valid=575, Invalid=1777, Unknown=0, NotChecked=0, Total=2352 [2021-06-05 10:38:06,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7358 states. [2021-06-05 10:38:06,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7358 to 4282. [2021-06-05 10:38:06,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4282 states, 4280 states have (on average 2.6698598130841122) internal successors, (11427), 4281 states have internal predecessors, (11427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:06,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4282 states to 4282 states and 11427 transitions. [2021-06-05 10:38:06,240 INFO L78 Accepts]: Start accepts. Automaton has 4282 states and 11427 transitions. Word has length 94 [2021-06-05 10:38:06,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:38:06,240 INFO L482 AbstractCegarLoop]: Abstraction has 4282 states and 11427 transitions. [2021-06-05 10:38:06,240 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:06,240 INFO L276 IsEmpty]: Start isEmpty. Operand 4282 states and 11427 transitions. [2021-06-05 10:38:06,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:38:06,244 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:38:06,247 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:38:06,247 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-06-05 10:38:06,248 INFO L430 AbstractCegarLoop]: === Iteration 131 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:38:06,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:38:06,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1125859795, now seen corresponding path program 125 times [2021-06-05 10:38:06,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:38:06,248 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325379270] [2021-06-05 10:38:06,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:38:06,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:38:06,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:38:06,804 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:38:06,804 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325379270] [2021-06-05 10:38:06,804 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325379270] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:38:06,804 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:38:06,804 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:38:06,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805492096] [2021-06-05 10:38:06,804 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:38:06,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:38:06,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:38:06,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:38:06,805 INFO L87 Difference]: Start difference. First operand 4282 states and 11427 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:07,781 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-06-05 10:38:07,930 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:38:08,066 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:38:08,232 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:38:08,385 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:38:08,577 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:38:08,777 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:38:08,992 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:38:09,173 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:38:09,399 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:38:10,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:38:10,332 INFO L93 Difference]: Finished difference Result 6742 states and 17199 transitions. [2021-06-05 10:38:10,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 10:38:10,333 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:38:10,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:38:10,341 INFO L225 Difference]: With dead ends: 6742 [2021-06-05 10:38:10,341 INFO L226 Difference]: Without dead ends: 6742 [2021-06-05 10:38:10,341 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 3206.8ms TimeCoverageRelationStatistics Valid=605, Invalid=1845, Unknown=0, NotChecked=0, Total=2450 [2021-06-05 10:38:10,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6742 states. [2021-06-05 10:38:10,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6742 to 4280. [2021-06-05 10:38:10,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4280 states, 4278 states have (on average 2.669939223936419) internal successors, (11422), 4279 states have internal predecessors, (11422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:10,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4280 states to 4280 states and 11422 transitions. [2021-06-05 10:38:10,430 INFO L78 Accepts]: Start accepts. Automaton has 4280 states and 11422 transitions. Word has length 94 [2021-06-05 10:38:10,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:38:10,430 INFO L482 AbstractCegarLoop]: Abstraction has 4280 states and 11422 transitions. [2021-06-05 10:38:10,430 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:10,430 INFO L276 IsEmpty]: Start isEmpty. Operand 4280 states and 11422 transitions. [2021-06-05 10:38:10,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:38:10,435 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:38:10,435 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:38:10,435 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-06-05 10:38:10,436 INFO L430 AbstractCegarLoop]: === Iteration 132 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:38:10,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:38:10,436 INFO L82 PathProgramCache]: Analyzing trace with hash 420338423, now seen corresponding path program 126 times [2021-06-05 10:38:10,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:38:10,436 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511634633] [2021-06-05 10:38:10,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:38:10,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:38:10,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:38:10,933 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:38:10,933 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511634633] [2021-06-05 10:38:10,933 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511634633] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:38:10,933 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:38:10,933 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:38:10,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381595619] [2021-06-05 10:38:10,933 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:38:10,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:38:10,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:38:10,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:38:10,934 INFO L87 Difference]: Start difference. First operand 4280 states and 11422 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:11,782 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:38:11,980 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 10:38:12,165 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 10:38:12,554 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 10:38:12,754 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 10:38:12,963 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 10:38:13,300 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:38:13,480 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 10:38:13,664 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:38:13,856 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 10:38:14,026 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 10:38:14,209 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-06-05 10:38:14,393 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2021-06-05 10:38:14,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:38:14,400 INFO L93 Difference]: Finished difference Result 8502 states and 21685 transitions. [2021-06-05 10:38:14,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:38:14,401 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:38:14,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:38:14,406 INFO L225 Difference]: With dead ends: 8502 [2021-06-05 10:38:14,407 INFO L226 Difference]: Without dead ends: 8502 [2021-06-05 10:38:14,407 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 3094.9ms TimeCoverageRelationStatistics Valid=554, Invalid=1516, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 10:38:14,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8502 states. [2021-06-05 10:38:14,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8502 to 4376. [2021-06-05 10:38:14,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4376 states, 4374 states have (on average 2.6771833561957017) internal successors, (11710), 4375 states have internal predecessors, (11710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:14,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4376 states to 4376 states and 11710 transitions. [2021-06-05 10:38:14,474 INFO L78 Accepts]: Start accepts. Automaton has 4376 states and 11710 transitions. Word has length 94 [2021-06-05 10:38:14,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:38:14,474 INFO L482 AbstractCegarLoop]: Abstraction has 4376 states and 11710 transitions. [2021-06-05 10:38:14,474 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:14,474 INFO L276 IsEmpty]: Start isEmpty. Operand 4376 states and 11710 transitions. [2021-06-05 10:38:14,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:38:14,478 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:38:14,478 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:38:14,478 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-06-05 10:38:14,478 INFO L430 AbstractCegarLoop]: === Iteration 133 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:38:14,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:38:14,478 INFO L82 PathProgramCache]: Analyzing trace with hash 130233045, now seen corresponding path program 127 times [2021-06-05 10:38:14,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:38:14,478 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047655838] [2021-06-05 10:38:14,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:38:14,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:38:14,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:38:14,971 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:38:14,971 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047655838] [2021-06-05 10:38:14,971 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047655838] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:38:14,971 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:38:14,971 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:38:14,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767180789] [2021-06-05 10:38:14,971 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:38:14,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:38:14,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:38:14,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:38:14,972 INFO L87 Difference]: Start difference. First operand 4376 states and 11710 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:15,689 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-06-05 10:38:15,839 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:38:16,040 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 10:38:16,228 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 10:38:16,452 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-06-05 10:38:16,683 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-06-05 10:38:17,081 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 10:38:17,292 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 10:38:17,623 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-06-05 10:38:17,830 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-06-05 10:38:18,046 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2021-06-05 10:38:18,258 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2021-06-05 10:38:18,484 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 10:38:18,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:38:18,491 INFO L93 Difference]: Finished difference Result 9176 states and 23481 transitions. [2021-06-05 10:38:18,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-05 10:38:18,492 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:38:18,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:38:18,498 INFO L225 Difference]: With dead ends: 9176 [2021-06-05 10:38:18,498 INFO L226 Difference]: Without dead ends: 9176 [2021-06-05 10:38:18,498 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 3157.6ms TimeCoverageRelationStatistics Valid=536, Invalid=1444, Unknown=0, NotChecked=0, Total=1980 [2021-06-05 10:38:18,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9176 states. [2021-06-05 10:38:18,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9176 to 4340. [2021-06-05 10:38:18,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4340 states, 4338 states have (on average 2.6745043798985706) internal successors, (11602), 4339 states have internal predecessors, (11602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:18,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4340 states to 4340 states and 11602 transitions. [2021-06-05 10:38:18,569 INFO L78 Accepts]: Start accepts. Automaton has 4340 states and 11602 transitions. Word has length 94 [2021-06-05 10:38:18,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:38:18,569 INFO L482 AbstractCegarLoop]: Abstraction has 4340 states and 11602 transitions. [2021-06-05 10:38:18,569 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:18,570 INFO L276 IsEmpty]: Start isEmpty. Operand 4340 states and 11602 transitions. [2021-06-05 10:38:18,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:38:18,573 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:38:18,573 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:38:18,573 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2021-06-05 10:38:18,573 INFO L430 AbstractCegarLoop]: === Iteration 134 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:38:18,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:38:18,574 INFO L82 PathProgramCache]: Analyzing trace with hash -1766983107, now seen corresponding path program 128 times [2021-06-05 10:38:18,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:38:18,574 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266009476] [2021-06-05 10:38:18,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:38:18,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:38:19,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:38:19,053 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:38:19,054 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266009476] [2021-06-05 10:38:19,054 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266009476] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:38:19,054 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:38:19,054 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:38:19,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413383013] [2021-06-05 10:38:19,054 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:38:19,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:38:19,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:38:19,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:38:19,054 INFO L87 Difference]: Start difference. First operand 4340 states and 11602 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:19,923 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:38:20,128 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 10:38:20,523 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:38:20,697 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 10:38:20,911 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 10:38:21,153 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 10:38:21,489 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-06-05 10:38:21,655 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2021-06-05 10:38:21,822 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 10:38:21,997 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 10:38:22,146 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:38:22,315 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:38:22,489 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:38:22,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:38:22,499 INFO L93 Difference]: Finished difference Result 8950 states and 22684 transitions. [2021-06-05 10:38:22,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:38:22,500 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:38:22,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:38:22,506 INFO L225 Difference]: With dead ends: 8950 [2021-06-05 10:38:22,506 INFO L226 Difference]: Without dead ends: 8950 [2021-06-05 10:38:22,506 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 2986.2ms TimeCoverageRelationStatistics Valid=539, Invalid=1531, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 10:38:22,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8950 states. [2021-06-05 10:38:22,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8950 to 4342. [2021-06-05 10:38:22,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4342 states, 4340 states have (on average 2.6744239631336404) internal successors, (11607), 4341 states have internal predecessors, (11607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:22,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4342 states to 4342 states and 11607 transitions. [2021-06-05 10:38:22,572 INFO L78 Accepts]: Start accepts. Automaton has 4342 states and 11607 transitions. Word has length 94 [2021-06-05 10:38:22,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:38:22,572 INFO L482 AbstractCegarLoop]: Abstraction has 4342 states and 11607 transitions. [2021-06-05 10:38:22,572 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:22,572 INFO L276 IsEmpty]: Start isEmpty. Operand 4342 states and 11607 transitions. [2021-06-05 10:38:22,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:38:22,576 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:38:22,576 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:38:22,576 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-06-05 10:38:22,576 INFO L430 AbstractCegarLoop]: === Iteration 135 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:38:22,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:38:22,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1552647, now seen corresponding path program 129 times [2021-06-05 10:38:22,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:38:22,576 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309208545] [2021-06-05 10:38:22,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:38:22,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:38:23,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:38:23,084 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:38:23,084 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309208545] [2021-06-05 10:38:23,085 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309208545] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:38:23,085 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:38:23,085 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:38:23,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715430339] [2021-06-05 10:38:23,085 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:38:23,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:38:23,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:38:23,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:38:23,085 INFO L87 Difference]: Start difference. First operand 4342 states and 11607 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:23,951 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:38:24,151 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 10:38:24,519 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:38:24,704 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:38:24,904 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:38:25,088 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:38:25,307 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:38:25,657 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-06-05 10:38:25,824 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2021-06-05 10:38:25,991 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 10:38:26,168 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 10:38:26,323 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:38:26,509 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:38:26,678 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:38:26,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:38:26,685 INFO L93 Difference]: Finished difference Result 8932 states and 22646 transitions. [2021-06-05 10:38:26,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 10:38:26,685 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:38:26,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:38:26,692 INFO L225 Difference]: With dead ends: 8932 [2021-06-05 10:38:26,692 INFO L226 Difference]: Without dead ends: 8932 [2021-06-05 10:38:26,692 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 3208.3ms TimeCoverageRelationStatistics Valid=572, Invalid=1590, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 10:38:26,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8932 states. [2021-06-05 10:38:26,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8932 to 4340. [2021-06-05 10:38:26,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4340 states, 4338 states have (on average 2.6745043798985706) internal successors, (11602), 4339 states have internal predecessors, (11602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:26,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4340 states to 4340 states and 11602 transitions. [2021-06-05 10:38:26,763 INFO L78 Accepts]: Start accepts. Automaton has 4340 states and 11602 transitions. Word has length 94 [2021-06-05 10:38:26,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:38:26,763 INFO L482 AbstractCegarLoop]: Abstraction has 4340 states and 11602 transitions. [2021-06-05 10:38:26,763 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:26,763 INFO L276 IsEmpty]: Start isEmpty. Operand 4340 states and 11602 transitions. [2021-06-05 10:38:26,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:38:26,767 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:38:26,767 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:38:26,767 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-06-05 10:38:26,767 INFO L430 AbstractCegarLoop]: === Iteration 136 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:38:26,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:38:26,767 INFO L82 PathProgramCache]: Analyzing trace with hash 676739655, now seen corresponding path program 130 times [2021-06-05 10:38:26,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:38:26,767 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218390274] [2021-06-05 10:38:26,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:38:26,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:38:27,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:38:27,339 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:38:27,339 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218390274] [2021-06-05 10:38:27,339 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218390274] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:38:27,339 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:38:27,339 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:38:27,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976119290] [2021-06-05 10:38:27,339 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:38:27,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:38:27,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:38:27,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:38:27,340 INFO L87 Difference]: Start difference. First operand 4340 states and 11602 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:28,182 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:38:28,377 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 10:38:28,572 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 10:38:28,782 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 10:38:28,974 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 10:38:29,202 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 10:38:29,615 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 10:38:29,798 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:38:30,012 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 10:38:30,366 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-06-05 10:38:30,567 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 10:38:30,756 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-06-05 10:38:30,965 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2021-06-05 10:38:31,164 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-06-05 10:38:31,381 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2021-06-05 10:38:31,575 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 10:38:31,798 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2021-06-05 10:38:31,987 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:38:32,190 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 10:38:32,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:38:32,200 INFO L93 Difference]: Finished difference Result 10393 states and 26326 transitions. [2021-06-05 10:38:32,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 10:38:32,201 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:38:32,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:38:32,208 INFO L225 Difference]: With dead ends: 10393 [2021-06-05 10:38:32,208 INFO L226 Difference]: Without dead ends: 10393 [2021-06-05 10:38:32,208 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 4495.9ms TimeCoverageRelationStatistics Valid=773, Invalid=1879, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 10:38:32,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10393 states. [2021-06-05 10:38:32,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10393 to 4352. [2021-06-05 10:38:32,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4352 states, 4350 states have (on average 2.6754022988505746) internal successors, (11638), 4351 states have internal predecessors, (11638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:32,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4352 states to 4352 states and 11638 transitions. [2021-06-05 10:38:32,281 INFO L78 Accepts]: Start accepts. Automaton has 4352 states and 11638 transitions. Word has length 94 [2021-06-05 10:38:32,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:38:32,281 INFO L482 AbstractCegarLoop]: Abstraction has 4352 states and 11638 transitions. [2021-06-05 10:38:32,281 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:32,281 INFO L276 IsEmpty]: Start isEmpty. Operand 4352 states and 11638 transitions. [2021-06-05 10:38:32,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:38:32,285 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:38:32,285 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:38:32,285 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-06-05 10:38:32,285 INFO L430 AbstractCegarLoop]: === Iteration 137 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:38:32,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:38:32,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1714559553, now seen corresponding path program 131 times [2021-06-05 10:38:32,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:38:32,286 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89043894] [2021-06-05 10:38:32,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:38:32,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:38:32,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:38:32,792 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:38:32,792 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89043894] [2021-06-05 10:38:32,792 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89043894] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:38:32,792 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:38:32,792 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:38:32,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106782458] [2021-06-05 10:38:32,793 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:38:32,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:38:32,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:38:32,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:38:32,793 INFO L87 Difference]: Start difference. First operand 4352 states and 11638 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:33,642 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:38:33,839 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 10:38:34,034 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 10:38:34,257 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 10:38:34,628 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:38:34,826 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:38:35,012 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:38:35,235 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:38:35,592 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-06-05 10:38:35,784 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-06-05 10:38:35,985 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-06-05 10:38:36,162 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:38:36,353 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 10:38:36,546 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:38:36,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:38:36,553 INFO L93 Difference]: Finished difference Result 9562 states and 24245 transitions. [2021-06-05 10:38:36,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 10:38:36,554 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:38:36,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:38:36,563 INFO L225 Difference]: With dead ends: 9562 [2021-06-05 10:38:36,563 INFO L226 Difference]: Without dead ends: 9562 [2021-06-05 10:38:36,563 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 3409.6ms TimeCoverageRelationStatistics Valid=587, Invalid=1575, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 10:38:36,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9562 states. [2021-06-05 10:38:36,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9562 to 4328. [2021-06-05 10:38:36,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4328 states, 4326 states have (on average 2.673601479426722) internal successors, (11566), 4327 states have internal predecessors, (11566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:36,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4328 states to 4328 states and 11566 transitions. [2021-06-05 10:38:36,645 INFO L78 Accepts]: Start accepts. Automaton has 4328 states and 11566 transitions. Word has length 94 [2021-06-05 10:38:36,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:38:36,645 INFO L482 AbstractCegarLoop]: Abstraction has 4328 states and 11566 transitions. [2021-06-05 10:38:36,645 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:36,645 INFO L276 IsEmpty]: Start isEmpty. Operand 4328 states and 11566 transitions. [2021-06-05 10:38:36,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:38:36,649 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:38:36,649 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:38:36,649 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-06-05 10:38:36,649 INFO L430 AbstractCegarLoop]: === Iteration 138 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:38:36,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:38:36,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1741617971, now seen corresponding path program 132 times [2021-06-05 10:38:36,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:38:36,649 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80661322] [2021-06-05 10:38:36,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:38:36,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:38:37,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:38:37,154 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:38:37,154 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80661322] [2021-06-05 10:38:37,154 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80661322] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:38:37,154 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:38:37,154 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:38:37,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333007409] [2021-06-05 10:38:37,154 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:38:37,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:38:37,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:38:37,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:38:37,155 INFO L87 Difference]: Start difference. First operand 4328 states and 11566 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:38,053 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:38:38,465 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:38:38,633 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:38:38,813 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 10:38:39,032 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 10:38:39,259 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 10:38:39,624 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-06-05 10:38:39,784 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 10:38:39,937 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 10:38:40,099 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 10:38:40,234 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:38:40,390 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:38:40,552 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 10:38:40,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:38:40,562 INFO L93 Difference]: Finished difference Result 9066 states and 22970 transitions. [2021-06-05 10:38:40,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:38:40,562 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:38:40,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:38:40,568 INFO L225 Difference]: With dead ends: 9066 [2021-06-05 10:38:40,568 INFO L226 Difference]: Without dead ends: 9066 [2021-06-05 10:38:40,568 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2893.9ms TimeCoverageRelationStatistics Valid=524, Invalid=1546, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 10:38:40,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9066 states. [2021-06-05 10:38:40,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9066 to 4334. [2021-06-05 10:38:40,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4334 states, 4332 states have (on average 2.6733610341643583) internal successors, (11581), 4333 states have internal predecessors, (11581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:40,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4334 states to 4334 states and 11581 transitions. [2021-06-05 10:38:40,631 INFO L78 Accepts]: Start accepts. Automaton has 4334 states and 11581 transitions. Word has length 94 [2021-06-05 10:38:40,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:38:40,631 INFO L482 AbstractCegarLoop]: Abstraction has 4334 states and 11581 transitions. [2021-06-05 10:38:40,631 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:40,632 INFO L276 IsEmpty]: Start isEmpty. Operand 4334 states and 11581 transitions. [2021-06-05 10:38:40,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:38:40,635 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:38:40,635 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:38:40,635 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-06-05 10:38:40,635 INFO L430 AbstractCegarLoop]: === Iteration 139 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:38:40,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:38:40,635 INFO L82 PathProgramCache]: Analyzing trace with hash -784813571, now seen corresponding path program 133 times [2021-06-05 10:38:40,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:38:40,635 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460136201] [2021-06-05 10:38:40,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:38:40,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:38:41,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:38:41,119 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:38:41,119 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460136201] [2021-06-05 10:38:41,119 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460136201] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:38:41,119 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:38:41,119 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:38:41,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464643528] [2021-06-05 10:38:41,119 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:38:41,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:38:41,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:38:41,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:38:41,119 INFO L87 Difference]: Start difference. First operand 4334 states and 11581 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:41,958 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:38:42,315 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:38:42,475 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:38:42,658 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:38:42,859 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:38:43,046 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:38:43,267 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:38:43,605 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-06-05 10:38:43,760 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 10:38:43,912 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 10:38:44,073 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 10:38:44,206 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:38:44,360 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:38:44,518 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 10:38:44,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:38:44,528 INFO L93 Difference]: Finished difference Result 9340 states and 23497 transitions. [2021-06-05 10:38:44,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 10:38:44,529 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:38:44,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:38:44,537 INFO L225 Difference]: With dead ends: 9340 [2021-06-05 10:38:44,537 INFO L226 Difference]: Without dead ends: 9340 [2021-06-05 10:38:44,538 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 3045.2ms TimeCoverageRelationStatistics Valid=557, Invalid=1605, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 10:38:44,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9340 states. [2021-06-05 10:38:44,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9340 to 4332. [2021-06-05 10:38:44,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4332 states, 4330 states have (on average 2.6734411085450347) internal successors, (11576), 4331 states have internal predecessors, (11576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:44,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4332 states to 4332 states and 11576 transitions. [2021-06-05 10:38:44,616 INFO L78 Accepts]: Start accepts. Automaton has 4332 states and 11576 transitions. Word has length 94 [2021-06-05 10:38:44,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:38:44,616 INFO L482 AbstractCegarLoop]: Abstraction has 4332 states and 11576 transitions. [2021-06-05 10:38:44,616 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:44,616 INFO L276 IsEmpty]: Start isEmpty. Operand 4332 states and 11576 transitions. [2021-06-05 10:38:44,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:38:44,620 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:38:44,620 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:38:44,620 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-06-05 10:38:44,620 INFO L430 AbstractCegarLoop]: === Iteration 140 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:38:44,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:38:44,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1320065741, now seen corresponding path program 134 times [2021-06-05 10:38:44,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:38:44,620 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939833890] [2021-06-05 10:38:44,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:38:44,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:38:45,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:38:45,144 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:38:45,144 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939833890] [2021-06-05 10:38:45,145 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939833890] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:38:45,145 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:38:45,145 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:38:45,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212308237] [2021-06-05 10:38:45,145 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:38:45,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:38:45,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:38:45,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:38:45,145 INFO L87 Difference]: Start difference. First operand 4332 states and 11576 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:46,015 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:38:46,371 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:38:46,536 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:38:46,712 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:38:46,892 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:38:47,107 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:38:47,294 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:38:47,541 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:38:47,877 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-06-05 10:38:48,033 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 10:38:48,188 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 10:38:48,350 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 10:38:48,490 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:38:48,642 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:38:48,802 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 10:38:48,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:38:48,808 INFO L93 Difference]: Finished difference Result 9090 states and 23023 transitions. [2021-06-05 10:38:48,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 10:38:48,809 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:38:48,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:38:48,815 INFO L225 Difference]: With dead ends: 9090 [2021-06-05 10:38:48,816 INFO L226 Difference]: Without dead ends: 9090 [2021-06-05 10:38:48,816 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 3270.5ms TimeCoverageRelationStatistics Valid=589, Invalid=1667, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 10:38:48,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9090 states. [2021-06-05 10:38:48,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9090 to 4328. [2021-06-05 10:38:48,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4328 states, 4326 states have (on average 2.673601479426722) internal successors, (11566), 4327 states have internal predecessors, (11566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:48,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4328 states to 4328 states and 11566 transitions. [2021-06-05 10:38:48,885 INFO L78 Accepts]: Start accepts. Automaton has 4328 states and 11566 transitions. Word has length 94 [2021-06-05 10:38:48,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:38:48,886 INFO L482 AbstractCegarLoop]: Abstraction has 4328 states and 11566 transitions. [2021-06-05 10:38:48,886 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:48,886 INFO L276 IsEmpty]: Start isEmpty. Operand 4328 states and 11566 transitions. [2021-06-05 10:38:48,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:38:48,889 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:38:48,889 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:38:48,890 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-06-05 10:38:48,890 INFO L430 AbstractCegarLoop]: === Iteration 141 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:38:48,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:38:48,890 INFO L82 PathProgramCache]: Analyzing trace with hash 476601873, now seen corresponding path program 135 times [2021-06-05 10:38:48,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:38:48,890 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519099936] [2021-06-05 10:38:48,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:38:48,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:38:49,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:38:49,437 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:38:49,437 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519099936] [2021-06-05 10:38:49,437 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519099936] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:38:49,437 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:38:49,437 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:38:49,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179202837] [2021-06-05 10:38:49,437 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:38:49,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:38:49,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:38:49,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:38:49,437 INFO L87 Difference]: Start difference. First operand 4328 states and 11566 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:50,345 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:38:50,526 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:38:50,720 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:38:50,915 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 10:38:51,137 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 10:38:51,311 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 10:38:51,549 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 10:38:51,937 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:38:52,165 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 10:38:52,352 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:38:52,582 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 10:38:52,985 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 10:38:53,185 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 10:38:53,359 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 10:38:53,570 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2021-06-05 10:38:53,756 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 10:38:53,976 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2021-06-05 10:38:54,156 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-06-05 10:38:54,363 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2021-06-05 10:38:54,542 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:38:54,745 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 10:38:54,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:38:54,756 INFO L93 Difference]: Finished difference Result 10744 states and 27238 transitions. [2021-06-05 10:38:54,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 10:38:54,756 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:38:54,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:38:54,764 INFO L225 Difference]: With dead ends: 10744 [2021-06-05 10:38:54,765 INFO L226 Difference]: Without dead ends: 10744 [2021-06-05 10:38:54,765 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 4748.9ms TimeCoverageRelationStatistics Valid=828, Invalid=2034, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 10:38:54,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10744 states. [2021-06-05 10:38:54,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10744 to 4364. [2021-06-05 10:38:54,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4364 states, 4362 states have (on average 2.67629527739569) internal successors, (11674), 4363 states have internal predecessors, (11674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:54,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4364 states to 4364 states and 11674 transitions. [2021-06-05 10:38:54,842 INFO L78 Accepts]: Start accepts. Automaton has 4364 states and 11674 transitions. Word has length 94 [2021-06-05 10:38:54,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:38:54,842 INFO L482 AbstractCegarLoop]: Abstraction has 4364 states and 11674 transitions. [2021-06-05 10:38:54,842 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:54,843 INFO L276 IsEmpty]: Start isEmpty. Operand 4364 states and 11674 transitions. [2021-06-05 10:38:54,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:38:54,846 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:38:54,846 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:38:54,846 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-06-05 10:38:54,846 INFO L430 AbstractCegarLoop]: === Iteration 142 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:38:54,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:38:54,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1514421771, now seen corresponding path program 136 times [2021-06-05 10:38:54,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:38:54,847 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657389574] [2021-06-05 10:38:54,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:38:54,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:38:55,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:38:55,393 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:38:55,393 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657389574] [2021-06-05 10:38:55,393 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657389574] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:38:55,393 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:38:55,394 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:38:55,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874734551] [2021-06-05 10:38:55,394 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:38:55,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:38:55,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:38:55,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:38:55,394 INFO L87 Difference]: Start difference. First operand 4364 states and 11674 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:38:56,269 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:38:56,447 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:38:56,636 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:38:56,826 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 10:38:57,039 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 10:38:57,444 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:38:57,629 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:38:57,841 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:38:58,030 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:38:58,283 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:38:58,687 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 10:38:58,872 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-06-05 10:38:59,047 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 10:38:59,242 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-06-05 10:38:59,427 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 10:38:59,629 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-06-05 10:38:59,809 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:38:59,978 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-06-05 10:39:00,168 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 10:39:00,350 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:39:00,536 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:39:00,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:39:00,547 INFO L93 Difference]: Finished difference Result 11013 states and 27698 transitions. [2021-06-05 10:39:00,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 10:39:00,547 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:39:00,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:39:00,555 INFO L225 Difference]: With dead ends: 11013 [2021-06-05 10:39:00,556 INFO L226 Difference]: Without dead ends: 11013 [2021-06-05 10:39:00,556 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 4629.6ms TimeCoverageRelationStatistics Valid=812, Invalid=2050, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 10:39:00,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11013 states. [2021-06-05 10:39:00,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11013 to 4352. [2021-06-05 10:39:00,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4352 states, 4350 states have (on average 2.6754022988505746) internal successors, (11638), 4351 states have internal predecessors, (11638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:00,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4352 states to 4352 states and 11638 transitions. [2021-06-05 10:39:00,639 INFO L78 Accepts]: Start accepts. Automaton has 4352 states and 11638 transitions. Word has length 94 [2021-06-05 10:39:00,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:39:00,639 INFO L482 AbstractCegarLoop]: Abstraction has 4352 states and 11638 transitions. [2021-06-05 10:39:00,639 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:00,639 INFO L276 IsEmpty]: Start isEmpty. Operand 4352 states and 11638 transitions. [2021-06-05 10:39:00,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:39:00,643 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:39:00,643 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:39:00,643 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-06-05 10:39:00,643 INFO L430 AbstractCegarLoop]: === Iteration 143 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:39:00,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:39:00,644 INFO L82 PathProgramCache]: Analyzing trace with hash -450607531, now seen corresponding path program 137 times [2021-06-05 10:39:00,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:39:00,644 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038398920] [2021-06-05 10:39:00,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:39:00,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:39:01,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:39:01,185 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:39:01,185 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038398920] [2021-06-05 10:39:01,185 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038398920] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:39:01,185 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:39:01,185 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:39:01,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25769763] [2021-06-05 10:39:01,186 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:39:01,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:39:01,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:39:01,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:39:01,186 INFO L87 Difference]: Start difference. First operand 4352 states and 11638 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:02,052 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 10:39:02,233 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:39:02,429 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:39:02,855 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:39:03,032 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:39:03,217 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:39:03,441 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:39:03,628 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:39:03,854 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:39:04,217 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 10:39:04,396 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 10:39:04,581 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 10:39:04,742 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:39:04,915 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-06-05 10:39:05,090 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:39:05,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:39:05,097 INFO L93 Difference]: Finished difference Result 9840 states and 24951 transitions. [2021-06-05 10:39:05,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 10:39:05,098 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:39:05,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:39:05,105 INFO L225 Difference]: With dead ends: 9840 [2021-06-05 10:39:05,105 INFO L226 Difference]: Without dead ends: 9840 [2021-06-05 10:39:05,105 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 3452.8ms TimeCoverageRelationStatistics Valid=604, Invalid=1652, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 10:39:05,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9840 states. [2021-06-05 10:39:05,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9840 to 4304. [2021-06-05 10:39:05,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4304 states, 4302 states have (on average 2.6717805671780566) internal successors, (11494), 4303 states have internal predecessors, (11494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:05,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4304 states to 4304 states and 11494 transitions. [2021-06-05 10:39:05,173 INFO L78 Accepts]: Start accepts. Automaton has 4304 states and 11494 transitions. Word has length 94 [2021-06-05 10:39:05,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:39:05,173 INFO L482 AbstractCegarLoop]: Abstraction has 4304 states and 11494 transitions. [2021-06-05 10:39:05,173 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:05,173 INFO L276 IsEmpty]: Start isEmpty. Operand 4304 states and 11494 transitions. [2021-06-05 10:39:05,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:39:05,176 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:39:05,176 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:39:05,177 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-06-05 10:39:05,177 INFO L430 AbstractCegarLoop]: === Iteration 144 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:39:05,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:39:05,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1005207761, now seen corresponding path program 138 times [2021-06-05 10:39:05,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:39:05,177 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132921166] [2021-06-05 10:39:05,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:39:05,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:39:05,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:39:05,648 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:39:05,648 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132921166] [2021-06-05 10:39:05,648 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132921166] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:39:05,648 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:39:05,648 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:39:05,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357954047] [2021-06-05 10:39:05,648 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:39:05,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:39:05,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:39:05,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:39:05,649 INFO L87 Difference]: Start difference. First operand 4304 states and 11494 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:06,811 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:39:06,984 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:39:07,162 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 10:39:07,382 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 10:39:07,604 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 10:39:07,904 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-06-05 10:39:08,044 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-06-05 10:39:08,183 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 10:39:08,329 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 10:39:08,449 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-06-05 10:39:08,590 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:39:08,735 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 10:39:08,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:39:08,762 INFO L93 Difference]: Finished difference Result 9226 states and 23383 transitions. [2021-06-05 10:39:08,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:39:08,763 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:39:08,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:39:08,769 INFO L225 Difference]: With dead ends: 9226 [2021-06-05 10:39:08,770 INFO L226 Difference]: Without dead ends: 9226 [2021-06-05 10:39:08,770 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 2767.0ms TimeCoverageRelationStatistics Valid=509, Invalid=1561, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 10:39:08,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9226 states. [2021-06-05 10:39:08,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9226 to 4312. [2021-06-05 10:39:08,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4312 states, 4310 states have (on average 2.671461716937355) internal successors, (11514), 4311 states have internal predecessors, (11514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:08,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4312 states to 4312 states and 11514 transitions. [2021-06-05 10:39:08,838 INFO L78 Accepts]: Start accepts. Automaton has 4312 states and 11514 transitions. Word has length 94 [2021-06-05 10:39:08,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:39:08,838 INFO L482 AbstractCegarLoop]: Abstraction has 4312 states and 11514 transitions. [2021-06-05 10:39:08,839 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:08,839 INFO L276 IsEmpty]: Start isEmpty. Operand 4312 states and 11514 transitions. [2021-06-05 10:39:08,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:39:08,842 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:39:08,842 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:39:08,842 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2021-06-05 10:39:08,842 INFO L430 AbstractCegarLoop]: === Iteration 145 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:39:08,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:39:08,843 INFO L82 PathProgramCache]: Analyzing trace with hash -1521223781, now seen corresponding path program 139 times [2021-06-05 10:39:08,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:39:08,843 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989986043] [2021-06-05 10:39:08,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:39:08,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:39:09,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:39:09,330 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:39:09,330 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989986043] [2021-06-05 10:39:09,331 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989986043] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:39:09,331 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:39:09,331 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:39:09,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487250613] [2021-06-05 10:39:09,331 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:39:09,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:39:09,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:39:09,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:39:09,331 INFO L87 Difference]: Start difference. First operand 4312 states and 11514 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:10,393 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-06-05 10:39:10,533 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:39:10,711 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:39:10,902 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:39:11,111 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:39:11,314 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:39:11,537 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:39:11,882 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-06-05 10:39:12,025 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-06-05 10:39:12,165 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 10:39:12,312 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 10:39:12,432 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-06-05 10:39:12,573 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:39:12,718 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 10:39:12,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:39:12,728 INFO L93 Difference]: Finished difference Result 9500 states and 23910 transitions. [2021-06-05 10:39:12,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 10:39:12,728 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:39:12,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:39:12,735 INFO L225 Difference]: With dead ends: 9500 [2021-06-05 10:39:12,735 INFO L226 Difference]: Without dead ends: 9500 [2021-06-05 10:39:12,735 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 2964.0ms TimeCoverageRelationStatistics Valid=542, Invalid=1620, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 10:39:12,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9500 states. [2021-06-05 10:39:12,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9500 to 4310. [2021-06-05 10:39:12,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4310 states, 4308 states have (on average 2.6715413184772516) internal successors, (11509), 4309 states have internal predecessors, (11509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:12,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4310 states to 4310 states and 11509 transitions. [2021-06-05 10:39:12,806 INFO L78 Accepts]: Start accepts. Automaton has 4310 states and 11509 transitions. Word has length 94 [2021-06-05 10:39:12,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:39:12,807 INFO L482 AbstractCegarLoop]: Abstraction has 4310 states and 11509 transitions. [2021-06-05 10:39:12,807 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:12,807 INFO L276 IsEmpty]: Start isEmpty. Operand 4310 states and 11509 transitions. [2021-06-05 10:39:12,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:39:12,810 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:39:12,810 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:39:12,811 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-06-05 10:39:12,811 INFO L430 AbstractCegarLoop]: === Iteration 146 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:39:12,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:39:12,811 INFO L82 PathProgramCache]: Analyzing trace with hash -2056475951, now seen corresponding path program 140 times [2021-06-05 10:39:12,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:39:12,811 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252438806] [2021-06-05 10:39:12,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:39:12,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:39:13,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:39:13,318 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:39:13,318 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252438806] [2021-06-05 10:39:13,318 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252438806] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:39:13,318 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:39:13,318 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:39:13,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983861939] [2021-06-05 10:39:13,318 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:39:13,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:39:13,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:39:13,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:39:13,319 INFO L87 Difference]: Start difference. First operand 4310 states and 11509 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:14,370 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-06-05 10:39:14,511 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:39:14,682 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:39:14,864 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:39:15,049 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:39:15,266 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:39:15,453 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:39:15,683 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:39:16,022 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-06-05 10:39:16,167 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-06-05 10:39:16,307 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 10:39:16,456 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 10:39:16,577 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-06-05 10:39:16,741 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:39:16,885 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 10:39:16,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:39:16,895 INFO L93 Difference]: Finished difference Result 9566 states and 24054 transitions. [2021-06-05 10:39:16,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 10:39:16,895 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:39:16,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:39:16,902 INFO L225 Difference]: With dead ends: 9566 [2021-06-05 10:39:16,902 INFO L226 Difference]: Without dead ends: 9566 [2021-06-05 10:39:16,902 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 3187.2ms TimeCoverageRelationStatistics Valid=574, Invalid=1682, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 10:39:16,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9566 states. [2021-06-05 10:39:16,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9566 to 4306. [2021-06-05 10:39:16,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4306 states, 4304 states have (on average 2.6717007434944238) internal successors, (11499), 4305 states have internal predecessors, (11499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:16,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4306 states to 4306 states and 11499 transitions. [2021-06-05 10:39:16,973 INFO L78 Accepts]: Start accepts. Automaton has 4306 states and 11499 transitions. Word has length 94 [2021-06-05 10:39:16,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:39:16,973 INFO L482 AbstractCegarLoop]: Abstraction has 4306 states and 11499 transitions. [2021-06-05 10:39:16,973 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:16,973 INFO L276 IsEmpty]: Start isEmpty. Operand 4306 states and 11499 transitions. [2021-06-05 10:39:16,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:39:16,976 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:39:16,977 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:39:16,977 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-06-05 10:39:16,977 INFO L430 AbstractCegarLoop]: === Iteration 147 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:39:16,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:39:16,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1048877009, now seen corresponding path program 141 times [2021-06-05 10:39:16,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:39:16,977 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791691480] [2021-06-05 10:39:16,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:39:16,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:39:17,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:39:17,513 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:39:17,513 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791691480] [2021-06-05 10:39:17,513 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791691480] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:39:17,513 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:39:17,513 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:39:17,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484213051] [2021-06-05 10:39:17,514 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:39:17,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:39:17,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:39:17,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:39:17,514 INFO L87 Difference]: Start difference. First operand 4306 states and 11499 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:18,608 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-06-05 10:39:18,759 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:39:18,920 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:39:19,072 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:39:19,250 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:39:19,463 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:39:19,684 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:39:19,872 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:39:20,101 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:39:20,587 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-06-05 10:39:20,727 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 10:39:20,873 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 10:39:20,998 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-06-05 10:39:21,135 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:39:21,280 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 10:39:21,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:39:21,287 INFO L93 Difference]: Finished difference Result 9268 states and 23474 transitions. [2021-06-05 10:39:21,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 10:39:21,288 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:39:21,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:39:21,295 INFO L225 Difference]: With dead ends: 9268 [2021-06-05 10:39:21,296 INFO L226 Difference]: Without dead ends: 9268 [2021-06-05 10:39:21,296 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 3329.6ms TimeCoverageRelationStatistics Valid=605, Invalid=1747, Unknown=0, NotChecked=0, Total=2352 [2021-06-05 10:39:21,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9268 states. [2021-06-05 10:39:21,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9268 to 4304. [2021-06-05 10:39:21,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4304 states, 4302 states have (on average 2.6717805671780566) internal successors, (11494), 4303 states have internal predecessors, (11494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:21,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4304 states to 4304 states and 11494 transitions. [2021-06-05 10:39:21,370 INFO L78 Accepts]: Start accepts. Automaton has 4304 states and 11494 transitions. Word has length 94 [2021-06-05 10:39:21,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:39:21,370 INFO L482 AbstractCegarLoop]: Abstraction has 4304 states and 11494 transitions. [2021-06-05 10:39:21,370 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:21,370 INFO L276 IsEmpty]: Start isEmpty. Operand 4304 states and 11494 transitions. [2021-06-05 10:39:21,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:39:21,374 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:39:21,374 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:39:21,374 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-06-05 10:39:21,374 INFO L430 AbstractCegarLoop]: === Iteration 148 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:39:21,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:39:21,374 INFO L82 PathProgramCache]: Analyzing trace with hash 1458215215, now seen corresponding path program 142 times [2021-06-05 10:39:21,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:39:21,374 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845475572] [2021-06-05 10:39:21,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:39:21,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:39:21,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:39:21,937 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:39:21,938 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845475572] [2021-06-05 10:39:21,938 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845475572] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:39:21,938 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:39:21,938 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:39:21,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323171779] [2021-06-05 10:39:21,938 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:39:21,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:39:21,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:39:21,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:39:21,938 INFO L87 Difference]: Start difference. First operand 4304 states and 11494 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:22,849 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:39:23,023 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:39:23,168 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 10:39:23,359 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:39:23,564 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 10:39:23,793 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 10:39:23,970 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 10:39:24,209 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 10:39:24,578 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:39:24,784 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:39:25,033 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 10:39:25,221 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:39:25,450 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 10:39:25,835 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 10:39:26,034 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 10:39:26,190 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 10:39:26,398 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2021-06-05 10:39:26,562 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-06-05 10:39:26,777 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2021-06-05 10:39:26,938 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-06-05 10:39:27,145 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2021-06-05 10:39:27,308 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:39:27,528 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 10:39:27,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:39:27,538 INFO L93 Difference]: Finished difference Result 11095 states and 28150 transitions. [2021-06-05 10:39:27,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 10:39:27,539 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:39:27,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:39:27,546 INFO L225 Difference]: With dead ends: 11095 [2021-06-05 10:39:27,546 INFO L226 Difference]: Without dead ends: 11095 [2021-06-05 10:39:27,547 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 4965.2ms TimeCoverageRelationStatistics Valid=882, Invalid=2198, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 10:39:27,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11095 states. [2021-06-05 10:39:27,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11095 to 4352. [2021-06-05 10:39:27,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4352 states, 4350 states have (on average 2.6754022988505746) internal successors, (11638), 4351 states have internal predecessors, (11638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:27,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4352 states to 4352 states and 11638 transitions. [2021-06-05 10:39:27,618 INFO L78 Accepts]: Start accepts. Automaton has 4352 states and 11638 transitions. Word has length 94 [2021-06-05 10:39:27,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:39:27,618 INFO L482 AbstractCegarLoop]: Abstraction has 4352 states and 11638 transitions. [2021-06-05 10:39:27,618 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:27,619 INFO L276 IsEmpty]: Start isEmpty. Operand 4352 states and 11638 transitions. [2021-06-05 10:39:27,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:39:27,622 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:39:27,622 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:39:27,622 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-06-05 10:39:27,622 INFO L430 AbstractCegarLoop]: === Iteration 149 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:39:27,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:39:27,622 INFO L82 PathProgramCache]: Analyzing trace with hash -1798932183, now seen corresponding path program 143 times [2021-06-05 10:39:27,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:39:27,622 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197857969] [2021-06-05 10:39:27,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:39:27,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:39:28,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:39:28,160 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:39:28,160 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197857969] [2021-06-05 10:39:28,160 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197857969] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:39:28,160 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:39:28,160 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:39:28,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313320950] [2021-06-05 10:39:28,160 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:39:28,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:39:28,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:39:28,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:39:28,160 INFO L87 Difference]: Start difference. First operand 4352 states and 11638 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:29,040 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:39:29,212 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:39:29,358 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 10:39:29,546 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:39:29,747 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 10:39:29,983 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 10:39:30,372 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:39:30,553 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:39:30,748 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:39:30,964 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:39:31,152 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:39:31,386 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:39:31,788 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 10:39:31,973 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-06-05 10:39:32,132 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 10:39:32,326 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-06-05 10:39:32,494 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-06-05 10:39:32,715 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-06-05 10:39:32,895 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:39:33,050 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-06-05 10:39:33,242 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 10:39:33,405 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:39:33,591 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:39:33,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:39:33,602 INFO L93 Difference]: Finished difference Result 11364 states and 28610 transitions. [2021-06-05 10:39:33,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 10:39:33,602 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:39:33,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:39:33,610 INFO L225 Difference]: With dead ends: 11364 [2021-06-05 10:39:33,610 INFO L226 Difference]: Without dead ends: 11364 [2021-06-05 10:39:33,610 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 4821.9ms TimeCoverageRelationStatistics Valid=865, Invalid=2215, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 10:39:33,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11364 states. [2021-06-05 10:39:33,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11364 to 4340. [2021-06-05 10:39:33,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4340 states, 4338 states have (on average 2.6745043798985706) internal successors, (11602), 4339 states have internal predecessors, (11602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:33,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4340 states to 4340 states and 11602 transitions. [2021-06-05 10:39:33,688 INFO L78 Accepts]: Start accepts. Automaton has 4340 states and 11602 transitions. Word has length 94 [2021-06-05 10:39:33,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:39:33,689 INFO L482 AbstractCegarLoop]: Abstraction has 4340 states and 11602 transitions. [2021-06-05 10:39:33,689 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:33,689 INFO L276 IsEmpty]: Start isEmpty. Operand 4340 states and 11602 transitions. [2021-06-05 10:39:33,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:39:33,692 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:39:33,693 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:39:33,693 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-06-05 10:39:33,693 INFO L430 AbstractCegarLoop]: === Iteration 150 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:39:33,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:39:33,693 INFO L82 PathProgramCache]: Analyzing trace with hash 531005811, now seen corresponding path program 144 times [2021-06-05 10:39:33,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:39:33,693 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332775878] [2021-06-05 10:39:33,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:39:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:39:34,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:39:34,280 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:39:34,284 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332775878] [2021-06-05 10:39:34,285 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332775878] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:39:34,285 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:39:34,285 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:39:34,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976106219] [2021-06-05 10:39:34,285 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:39:34,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:39:34,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:39:34,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:39:34,286 INFO L87 Difference]: Start difference. First operand 4340 states and 11602 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:35,198 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:39:35,385 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:39:35,531 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 10:39:35,720 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:39:36,190 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:39:36,342 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:39:36,524 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:39:36,723 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:39:36,943 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:39:37,134 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:39:37,365 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:39:37,775 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 10:39:37,944 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 10:39:38,124 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 10:39:38,299 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 10:39:38,468 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-06-05 10:39:38,653 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 10:39:38,817 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:39:38,972 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-06-05 10:39:39,147 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-06-05 10:39:39,310 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:39:39,480 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:39:39,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:39:39,490 INFO L93 Difference]: Finished difference Result 11408 states and 28708 transitions. [2021-06-05 10:39:39,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-05 10:39:39,491 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:39:39,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:39:39,499 INFO L225 Difference]: With dead ends: 11408 [2021-06-05 10:39:39,499 INFO L226 Difference]: Without dead ends: 11408 [2021-06-05 10:39:39,500 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 4612.3ms TimeCoverageRelationStatistics Valid=817, Invalid=2153, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 10:39:39,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11408 states. [2021-06-05 10:39:39,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11408 to 4316. [2021-06-05 10:39:39,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4316 states, 4314 states have (on average 2.672693555864627) internal successors, (11530), 4315 states have internal predecessors, (11530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:39,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4316 states to 4316 states and 11530 transitions. [2021-06-05 10:39:39,576 INFO L78 Accepts]: Start accepts. Automaton has 4316 states and 11530 transitions. Word has length 94 [2021-06-05 10:39:39,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:39:39,576 INFO L482 AbstractCegarLoop]: Abstraction has 4316 states and 11530 transitions. [2021-06-05 10:39:39,576 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:39,576 INFO L276 IsEmpty]: Start isEmpty. Operand 4316 states and 11530 transitions. [2021-06-05 10:39:39,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:39:39,580 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:39:39,580 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:39:39,580 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2021-06-05 10:39:39,580 INFO L430 AbstractCegarLoop]: === Iteration 151 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:39:39,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:39:39,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1570959339, now seen corresponding path program 145 times [2021-06-05 10:39:39,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:39:39,581 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091002001] [2021-06-05 10:39:39,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:39:39,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:39:40,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:39:40,175 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:39:40,175 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091002001] [2021-06-05 10:39:40,175 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091002001] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:39:40,175 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:39:40,175 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:39:40,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022671663] [2021-06-05 10:39:40,175 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:39:40,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:39:40,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:39:40,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:39:40,176 INFO L87 Difference]: Start difference. First operand 4316 states and 11530 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:41,064 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:39:41,233 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 10:39:41,614 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:39:41,773 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:39:41,926 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:39:42,110 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:39:42,300 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:39:42,516 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:39:42,704 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:39:42,931 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:39:43,287 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 10:39:43,447 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 10:39:43,633 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-06-05 10:39:43,778 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:39:43,933 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-06-05 10:39:44,095 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:39:44,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:39:44,101 INFO L93 Difference]: Finished difference Result 10012 states and 25376 transitions. [2021-06-05 10:39:44,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 10:39:44,102 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:39:44,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:39:44,109 INFO L225 Difference]: With dead ends: 10012 [2021-06-05 10:39:44,110 INFO L226 Difference]: Without dead ends: 10012 [2021-06-05 10:39:44,110 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 3531.5ms TimeCoverageRelationStatistics Valid=620, Invalid=1732, Unknown=0, NotChecked=0, Total=2352 [2021-06-05 10:39:44,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10012 states. [2021-06-05 10:39:44,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10012 to 4292. [2021-06-05 10:39:44,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4292 states, 4290 states have (on average 2.670862470862471) internal successors, (11458), 4291 states have internal predecessors, (11458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:44,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4292 states to 4292 states and 11458 transitions. [2021-06-05 10:39:44,185 INFO L78 Accepts]: Start accepts. Automaton has 4292 states and 11458 transitions. Word has length 94 [2021-06-05 10:39:44,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:39:44,185 INFO L482 AbstractCegarLoop]: Abstraction has 4292 states and 11458 transitions. [2021-06-05 10:39:44,185 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:44,185 INFO L276 IsEmpty]: Start isEmpty. Operand 4292 states and 11458 transitions. [2021-06-05 10:39:44,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:39:44,189 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:39:44,189 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:39:44,189 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2021-06-05 10:39:44,189 INFO L430 AbstractCegarLoop]: === Iteration 152 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:39:44,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:39:44,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1220806401, now seen corresponding path program 146 times [2021-06-05 10:39:44,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:39:44,190 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946872502] [2021-06-05 10:39:44,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:39:44,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:39:44,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:39:44,667 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:39:44,667 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946872502] [2021-06-05 10:39:44,667 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946872502] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:39:44,667 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:39:44,668 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:39:44,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119174872] [2021-06-05 10:39:44,668 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:39:44,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:39:44,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:39:44,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:39:44,668 INFO L87 Difference]: Start difference. First operand 4292 states and 11458 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:45,707 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-06-05 10:39:45,856 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:39:46,073 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:39:46,259 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 10:39:46,483 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 10:39:46,709 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 10:39:47,409 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-06-05 10:39:47,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:39:47,781 INFO L93 Difference]: Finished difference Result 8012 states and 20333 transitions. [2021-06-05 10:39:47,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:39:47,782 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:39:47,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:39:47,788 INFO L225 Difference]: With dead ends: 8012 [2021-06-05 10:39:47,789 INFO L226 Difference]: Without dead ends: 8012 [2021-06-05 10:39:47,789 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 2681.4ms TimeCoverageRelationStatistics Valid=494, Invalid=1576, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 10:39:47,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8012 states. [2021-06-05 10:39:47,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8012 to 4302. [2021-06-05 10:39:47,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4302 states, 4300 states have (on average 2.6704651162790696) internal successors, (11483), 4301 states have internal predecessors, (11483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:47,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4302 states to 4302 states and 11483 transitions. [2021-06-05 10:39:47,858 INFO L78 Accepts]: Start accepts. Automaton has 4302 states and 11483 transitions. Word has length 94 [2021-06-05 10:39:47,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:39:47,858 INFO L482 AbstractCegarLoop]: Abstraction has 4302 states and 11483 transitions. [2021-06-05 10:39:47,858 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:47,859 INFO L276 IsEmpty]: Start isEmpty. Operand 4302 states and 11483 transitions. [2021-06-05 10:39:47,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:39:47,862 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:39:47,862 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:39:47,862 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2021-06-05 10:39:47,862 INFO L430 AbstractCegarLoop]: === Iteration 153 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:39:47,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:39:47,863 INFO L82 PathProgramCache]: Analyzing trace with hash -1305625141, now seen corresponding path program 147 times [2021-06-05 10:39:47,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:39:47,863 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274466339] [2021-06-05 10:39:47,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:39:47,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:39:48,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:39:48,367 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:39:48,367 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274466339] [2021-06-05 10:39:48,367 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274466339] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:39:48,367 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:39:48,367 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:39:48,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307241799] [2021-06-05 10:39:48,367 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:39:48,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:39:48,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:39:48,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:39:48,367 INFO L87 Difference]: Start difference. First operand 4302 states and 11483 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:49,361 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-06-05 10:39:49,508 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:39:49,688 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:39:49,879 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:39:50,087 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:39:50,268 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:39:50,487 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:39:51,191 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-06-05 10:39:51,570 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2021-06-05 10:39:51,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:39:51,579 INFO L93 Difference]: Finished difference Result 8286 states and 20860 transitions. [2021-06-05 10:39:51,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 10:39:51,579 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:39:51,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:39:51,585 INFO L225 Difference]: With dead ends: 8286 [2021-06-05 10:39:51,585 INFO L226 Difference]: Without dead ends: 8286 [2021-06-05 10:39:51,585 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 2865.7ms TimeCoverageRelationStatistics Valid=527, Invalid=1635, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 10:39:51,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8286 states. [2021-06-05 10:39:51,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8286 to 4300. [2021-06-05 10:39:51,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4300 states, 4298 states have (on average 2.670544439274081) internal successors, (11478), 4299 states have internal predecessors, (11478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:51,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4300 states to 4300 states and 11478 transitions. [2021-06-05 10:39:51,641 INFO L78 Accepts]: Start accepts. Automaton has 4300 states and 11478 transitions. Word has length 94 [2021-06-05 10:39:51,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:39:51,641 INFO L482 AbstractCegarLoop]: Abstraction has 4300 states and 11478 transitions. [2021-06-05 10:39:51,641 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:51,641 INFO L276 IsEmpty]: Start isEmpty. Operand 4300 states and 11478 transitions. [2021-06-05 10:39:51,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:39:51,645 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:39:51,645 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:39:51,645 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2021-06-05 10:39:51,645 INFO L430 AbstractCegarLoop]: === Iteration 154 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:39:51,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:39:51,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1840877311, now seen corresponding path program 148 times [2021-06-05 10:39:51,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:39:51,645 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511938059] [2021-06-05 10:39:51,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:39:51,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:39:52,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:39:52,148 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:39:52,148 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511938059] [2021-06-05 10:39:52,148 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511938059] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:39:52,149 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:39:52,149 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:39:52,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633706050] [2021-06-05 10:39:52,149 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:39:52,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:39:52,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:39:52,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:39:52,149 INFO L87 Difference]: Start difference. First operand 4300 states and 11478 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:53,278 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:39:53,450 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:39:53,631 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:39:53,817 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:39:54,049 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:39:54,232 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:39:54,458 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:39:55,161 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-06-05 10:39:55,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:39:55,535 INFO L93 Difference]: Finished difference Result 8352 states and 21004 transitions. [2021-06-05 10:39:55,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 10:39:55,536 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:39:55,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:39:55,542 INFO L225 Difference]: With dead ends: 8352 [2021-06-05 10:39:55,542 INFO L226 Difference]: Without dead ends: 8352 [2021-06-05 10:39:55,543 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 3017.1ms TimeCoverageRelationStatistics Valid=559, Invalid=1697, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 10:39:55,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8352 states. [2021-06-05 10:39:55,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8352 to 4296. [2021-06-05 10:39:55,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4296 states, 4294 states have (on average 2.670703306939916) internal successors, (11468), 4295 states have internal predecessors, (11468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:55,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4296 states to 4296 states and 11468 transitions. [2021-06-05 10:39:55,610 INFO L78 Accepts]: Start accepts. Automaton has 4296 states and 11468 transitions. Word has length 94 [2021-06-05 10:39:55,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:39:55,610 INFO L482 AbstractCegarLoop]: Abstraction has 4296 states and 11468 transitions. [2021-06-05 10:39:55,611 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:55,611 INFO L276 IsEmpty]: Start isEmpty. Operand 4296 states and 11468 transitions. [2021-06-05 10:39:55,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:39:55,614 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:39:55,614 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:39:55,614 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2021-06-05 10:39:55,614 INFO L430 AbstractCegarLoop]: === Iteration 155 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:39:55,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:39:55,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1264475649, now seen corresponding path program 149 times [2021-06-05 10:39:55,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:39:55,615 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682076006] [2021-06-05 10:39:55,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:39:55,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:39:56,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:39:56,222 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:39:56,222 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682076006] [2021-06-05 10:39:56,222 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682076006] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:39:56,222 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:39:56,222 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:39:56,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584953053] [2021-06-05 10:39:56,223 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:39:56,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:39:56,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:39:56,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:39:56,223 INFO L87 Difference]: Start difference. First operand 4296 states and 11468 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:57,259 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-06-05 10:39:57,420 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:39:57,586 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:39:57,738 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:39:57,921 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:39:58,124 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:39:58,349 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:39:58,537 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:39:58,770 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:39:59,495 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-06-05 10:39:59,620 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-06-05 10:39:59,746 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-06-05 10:39:59,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:39:59,887 INFO L93 Difference]: Finished difference Result 8418 states and 21148 transitions. [2021-06-05 10:39:59,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 10:39:59,887 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:39:59,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:39:59,893 INFO L225 Difference]: With dead ends: 8418 [2021-06-05 10:39:59,893 INFO L226 Difference]: Without dead ends: 8418 [2021-06-05 10:39:59,893 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 3303.5ms TimeCoverageRelationStatistics Valid=590, Invalid=1762, Unknown=0, NotChecked=0, Total=2352 [2021-06-05 10:39:59,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8418 states. [2021-06-05 10:39:59,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8418 to 4294. [2021-06-05 10:39:59,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4294 states, 4292 states have (on average 2.6707828518173344) internal successors, (11463), 4293 states have internal predecessors, (11463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:59,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4294 states to 4294 states and 11463 transitions. [2021-06-05 10:39:59,955 INFO L78 Accepts]: Start accepts. Automaton has 4294 states and 11463 transitions. Word has length 94 [2021-06-05 10:39:59,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:39:59,955 INFO L482 AbstractCegarLoop]: Abstraction has 4294 states and 11463 transitions. [2021-06-05 10:39:59,955 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:39:59,955 INFO L276 IsEmpty]: Start isEmpty. Operand 4294 states and 11463 transitions. [2021-06-05 10:39:59,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:39:59,959 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:39:59,959 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:39:59,959 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2021-06-05 10:39:59,959 INFO L430 AbstractCegarLoop]: === Iteration 156 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:39:59,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:39:59,959 INFO L82 PathProgramCache]: Analyzing trace with hash -997465141, now seen corresponding path program 150 times [2021-06-05 10:39:59,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:39:59,960 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293691554] [2021-06-05 10:39:59,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:39:59,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:40:00,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:40:00,498 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:40:00,498 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293691554] [2021-06-05 10:40:00,498 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293691554] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:40:00,498 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:40:00,499 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:40:00,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977824120] [2021-06-05 10:40:00,499 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:40:00,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:40:00,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:40:00,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:40:00,499 INFO L87 Difference]: Start difference. First operand 4294 states and 11463 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:40:01,505 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-06-05 10:40:01,652 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:40:01,790 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:40:01,955 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:40:02,127 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:40:02,317 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:40:02,518 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:40:02,735 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:40:02,920 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:40:03,147 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:40:03,848 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-06-05 10:40:04,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:40:04,215 INFO L93 Difference]: Finished difference Result 8074 states and 20467 transitions. [2021-06-05 10:40:04,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 10:40:04,216 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:40:04,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:40:04,223 INFO L225 Difference]: With dead ends: 8074 [2021-06-05 10:40:04,223 INFO L226 Difference]: Without dead ends: 8074 [2021-06-05 10:40:04,224 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 3366.1ms TimeCoverageRelationStatistics Valid=620, Invalid=1830, Unknown=0, NotChecked=0, Total=2450 [2021-06-05 10:40:04,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8074 states. [2021-06-05 10:40:04,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8074 to 4292. [2021-06-05 10:40:04,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4292 states, 4290 states have (on average 2.670862470862471) internal successors, (11458), 4291 states have internal predecessors, (11458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:40:04,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4292 states to 4292 states and 11458 transitions. [2021-06-05 10:40:04,294 INFO L78 Accepts]: Start accepts. Automaton has 4292 states and 11458 transitions. Word has length 94 [2021-06-05 10:40:04,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:40:04,294 INFO L482 AbstractCegarLoop]: Abstraction has 4292 states and 11458 transitions. [2021-06-05 10:40:04,294 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:40:04,294 INFO L276 IsEmpty]: Start isEmpty. Operand 4292 states and 11458 transitions. [2021-06-05 10:40:04,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:40:04,298 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:40:04,298 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:40:04,298 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2021-06-05 10:40:04,298 INFO L430 AbstractCegarLoop]: === Iteration 157 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:40:04,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:40:04,298 INFO L82 PathProgramCache]: Analyzing trace with hash -1626842101, now seen corresponding path program 151 times [2021-06-05 10:40:04,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:40:04,298 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900823813] [2021-06-05 10:40:04,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:40:04,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:40:04,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:40:04,885 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:40:04,885 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900823813] [2021-06-05 10:40:04,885 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900823813] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:40:04,885 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:40:04,885 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:40:04,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473806366] [2021-06-05 10:40:04,885 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:40:04,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:40:04,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:40:04,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:40:04,886 INFO L87 Difference]: Start difference. First operand 4292 states and 11458 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:40:05,783 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:40:05,916 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 10:40:06,088 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:40:06,239 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 10:40:06,442 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:40:06,650 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 10:40:06,878 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 10:40:07,059 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 10:40:07,303 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 10:40:07,687 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:40:07,865 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:40:08,075 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:40:08,342 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 10:40:08,532 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:40:08,769 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 10:40:09,155 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 10:40:09,361 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 10:40:09,504 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 10:40:09,718 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2021-06-05 10:40:09,870 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-06-05 10:40:10,094 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2021-06-05 10:40:10,243 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2021-06-05 10:40:10,469 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2021-06-05 10:40:10,614 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:40:10,820 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 10:40:10,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:40:10,830 INFO L93 Difference]: Finished difference Result 8535 states and 21759 transitions. [2021-06-05 10:40:10,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 10:40:10,831 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:40:10,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:40:10,836 INFO L225 Difference]: With dead ends: 8535 [2021-06-05 10:40:10,836 INFO L226 Difference]: Without dead ends: 8535 [2021-06-05 10:40:10,836 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 5213.7ms TimeCoverageRelationStatistics Valid=935, Invalid=2371, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 10:40:10,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8535 states. [2021-06-05 10:40:10,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8535 to 4352. [2021-06-05 10:40:10,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4352 states, 4350 states have (on average 2.6754022988505746) internal successors, (11638), 4351 states have internal predecessors, (11638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:40:10,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4352 states to 4352 states and 11638 transitions. [2021-06-05 10:40:10,914 INFO L78 Accepts]: Start accepts. Automaton has 4352 states and 11638 transitions. Word has length 94 [2021-06-05 10:40:10,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:40:10,914 INFO L482 AbstractCegarLoop]: Abstraction has 4352 states and 11638 transitions. [2021-06-05 10:40:10,914 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:40:10,914 INFO L276 IsEmpty]: Start isEmpty. Operand 4352 states and 11638 transitions. [2021-06-05 10:40:10,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:40:10,918 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:40:10,918 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:40:10,918 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2021-06-05 10:40:10,918 INFO L430 AbstractCegarLoop]: === Iteration 158 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:40:10,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:40:10,918 INFO L82 PathProgramCache]: Analyzing trace with hash -589022203, now seen corresponding path program 152 times [2021-06-05 10:40:10,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:40:10,918 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931477812] [2021-06-05 10:40:10,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:40:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:40:11,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:40:11,495 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:40:11,495 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931477812] [2021-06-05 10:40:11,495 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931477812] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:40:11,496 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:40:11,496 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:40:11,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250688622] [2021-06-05 10:40:11,496 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:40:11,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:40:11,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:40:11,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:40:11,496 INFO L87 Difference]: Start difference. First operand 4352 states and 11638 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:40:12,393 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:40:12,525 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 10:40:12,694 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:40:12,843 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 10:40:13,051 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:40:13,249 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 10:40:13,466 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 10:40:13,824 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:40:13,999 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:40:14,200 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:40:14,402 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:40:14,617 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:40:14,808 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:40:15,050 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:40:15,450 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 10:40:15,634 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-06-05 10:40:15,795 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 10:40:15,986 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-06-05 10:40:16,138 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-06-05 10:40:16,338 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-06-05 10:40:16,516 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:40:16,656 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2021-06-05 10:40:16,845 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 10:40:16,997 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:40:17,183 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:40:17,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:40:17,193 INFO L93 Difference]: Finished difference Result 8804 states and 22219 transitions. [2021-06-05 10:40:17,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 10:40:17,193 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:40:17,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:40:17,200 INFO L225 Difference]: With dead ends: 8804 [2021-06-05 10:40:17,200 INFO L226 Difference]: Without dead ends: 8804 [2021-06-05 10:40:17,200 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 5041.8ms TimeCoverageRelationStatistics Valid=917, Invalid=2389, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 10:40:17,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8804 states. [2021-06-05 10:40:17,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8804 to 4340. [2021-06-05 10:40:17,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4340 states, 4338 states have (on average 2.6745043798985706) internal successors, (11602), 4339 states have internal predecessors, (11602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:40:17,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4340 states to 4340 states and 11602 transitions. [2021-06-05 10:40:17,264 INFO L78 Accepts]: Start accepts. Automaton has 4340 states and 11602 transitions. Word has length 94 [2021-06-05 10:40:17,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:40:17,264 INFO L482 AbstractCegarLoop]: Abstraction has 4340 states and 11602 transitions. [2021-06-05 10:40:17,264 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:40:17,265 INFO L276 IsEmpty]: Start isEmpty. Operand 4340 states and 11602 transitions. [2021-06-05 10:40:17,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:40:17,268 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:40:17,268 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:40:17,268 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2021-06-05 10:40:17,268 INFO L430 AbstractCegarLoop]: === Iteration 159 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:40:17,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:40:17,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1740915791, now seen corresponding path program 153 times [2021-06-05 10:40:17,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:40:17,268 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219260752] [2021-06-05 10:40:17,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:40:17,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:40:17,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:40:17,817 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:40:17,817 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219260752] [2021-06-05 10:40:17,817 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219260752] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:40:17,817 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:40:17,817 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:40:17,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103458661] [2021-06-05 10:40:17,817 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:40:17,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:40:17,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:40:17,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:40:17,818 INFO L87 Difference]: Start difference. First operand 4340 states and 11602 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:40:18,746 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:40:18,879 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 10:40:19,049 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:40:19,198 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 10:40:19,397 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 10:40:19,859 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:40:20,031 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:40:20,192 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:40:20,393 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:40:20,601 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:40:20,819 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:40:21,008 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:40:21,259 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:40:21,676 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 10:40:21,844 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 10:40:21,989 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 10:40:22,165 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 10:40:22,320 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-06-05 10:40:22,503 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 10:40:22,668 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:40:22,808 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2021-06-05 10:40:22,981 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-06-05 10:40:23,135 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:40:23,303 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:40:23,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:40:23,314 INFO L93 Difference]: Finished difference Result 8848 states and 22317 transitions. [2021-06-05 10:40:23,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 10:40:23,314 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:40:23,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:40:23,320 INFO L225 Difference]: With dead ends: 8848 [2021-06-05 10:40:23,321 INFO L226 Difference]: Without dead ends: 8848 [2021-06-05 10:40:23,321 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 4751.4ms TimeCoverageRelationStatistics Valid=868, Invalid=2324, Unknown=0, NotChecked=0, Total=3192 [2021-06-05 10:40:23,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8848 states. [2021-06-05 10:40:23,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8848 to 4316. [2021-06-05 10:40:23,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4316 states, 4314 states have (on average 2.672693555864627) internal successors, (11530), 4315 states have internal predecessors, (11530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:40:23,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4316 states to 4316 states and 11530 transitions. [2021-06-05 10:40:23,391 INFO L78 Accepts]: Start accepts. Automaton has 4316 states and 11530 transitions. Word has length 94 [2021-06-05 10:40:23,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:40:23,391 INFO L482 AbstractCegarLoop]: Abstraction has 4316 states and 11530 transitions. [2021-06-05 10:40:23,392 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:40:23,392 INFO L276 IsEmpty]: Start isEmpty. Operand 4316 states and 11530 transitions. [2021-06-05 10:40:23,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:40:23,395 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:40:23,395 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:40:23,395 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2021-06-05 10:40:23,395 INFO L430 AbstractCegarLoop]: === Iteration 160 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:40:23,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:40:23,396 INFO L82 PathProgramCache]: Analyzing trace with hash -361049359, now seen corresponding path program 154 times [2021-06-05 10:40:23,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:40:23,396 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506010127] [2021-06-05 10:40:23,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:40:23,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:40:23,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:40:23,972 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:40:23,972 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506010127] [2021-06-05 10:40:23,972 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506010127] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:40:23,972 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:40:23,972 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:40:23,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789416760] [2021-06-05 10:40:23,972 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:40:23,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:40:23,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:40:23,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:40:23,973 INFO L87 Difference]: Start difference. First operand 4316 states and 11530 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:40:24,851 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 10:40:24,982 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 10:40:25,150 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 10:40:25,582 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:40:25,719 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:40:25,884 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:40:26,038 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:40:26,237 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:40:26,456 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:40:26,669 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:40:26,855 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:40:27,082 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:40:27,471 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 10:40:27,624 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 10:40:27,767 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 10:40:27,924 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 10:40:28,076 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-06-05 10:40:28,242 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-06-05 10:40:28,391 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:40:28,531 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2021-06-05 10:40:28,687 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-06-05 10:40:28,837 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:40:28,991 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:40:29,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:40:29,001 INFO L93 Difference]: Finished difference Result 8903 states and 22438 transitions. [2021-06-05 10:40:29,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 10:40:29,001 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:40:29,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:40:29,008 INFO L225 Difference]: With dead ends: 8903 [2021-06-05 10:40:29,008 INFO L226 Difference]: Without dead ends: 8903 [2021-06-05 10:40:29,009 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 4488.7ms TimeCoverageRelationStatistics Valid=821, Invalid=2259, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 10:40:29,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8903 states. [2021-06-05 10:40:29,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8903 to 4304. [2021-06-05 10:40:29,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4304 states, 4302 states have (on average 2.6717805671780566) internal successors, (11494), 4303 states have internal predecessors, (11494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:40:29,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4304 states to 4304 states and 11494 transitions. [2021-06-05 10:40:29,097 INFO L78 Accepts]: Start accepts. Automaton has 4304 states and 11494 transitions. Word has length 94 [2021-06-05 10:40:29,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:40:29,097 INFO L482 AbstractCegarLoop]: Abstraction has 4304 states and 11494 transitions. [2021-06-05 10:40:29,098 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:40:29,098 INFO L276 IsEmpty]: Start isEmpty. Operand 4304 states and 11494 transitions. [2021-06-05 10:40:29,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:40:29,102 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:40:29,102 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:40:29,102 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2021-06-05 10:40:29,102 INFO L430 AbstractCegarLoop]: === Iteration 161 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:40:29,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:40:29,102 INFO L82 PathProgramCache]: Analyzing trace with hash 892831425, now seen corresponding path program 155 times [2021-06-05 10:40:29,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:40:29,102 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410152339] [2021-06-05 10:40:29,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:40:29,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:40:29,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:40:29,655 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:40:29,656 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410152339] [2021-06-05 10:40:29,656 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410152339] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:40:29,656 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:40:29,656 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:40:29,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349702079] [2021-06-05 10:40:29,656 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:40:29,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:40:29,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:40:29,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:40:29,656 INFO L87 Difference]: Start difference. First operand 4304 states and 11494 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:40:30,557 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 10:40:30,925 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-06-05 10:40:31,070 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 10:40:31,209 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:40:31,378 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 10:40:31,532 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 10:40:31,747 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 10:40:31,940 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 10:40:32,154 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 10:40:32,340 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 10:40:32,567 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 10:40:32,921 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 10:40:33,064 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 10:40:33,214 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-06-05 10:40:33,342 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-06-05 10:40:33,481 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2021-06-05 10:40:33,630 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 10:40:33,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:40:33,637 INFO L93 Difference]: Finished difference Result 7360 states and 18735 transitions. [2021-06-05 10:40:33,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 10:40:33,637 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:40:33,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:40:33,644 INFO L225 Difference]: With dead ends: 7360 [2021-06-05 10:40:33,644 INFO L226 Difference]: Without dead ends: 7360 [2021-06-05 10:40:33,644 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 3522.1ms TimeCoverageRelationStatistics Valid=635, Invalid=1815, Unknown=0, NotChecked=0, Total=2450 [2021-06-05 10:40:33,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7360 states. [2021-06-05 10:40:33,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7360 to 4280. [2021-06-05 10:40:33,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4280 states, 4278 states have (on average 2.669939223936419) internal successors, (11422), 4279 states have internal predecessors, (11422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:40:33,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4280 states to 4280 states and 11422 transitions. [2021-06-05 10:40:33,710 INFO L78 Accepts]: Start accepts. Automaton has 4280 states and 11422 transitions. Word has length 94 [2021-06-05 10:40:33,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:40:33,710 INFO L482 AbstractCegarLoop]: Abstraction has 4280 states and 11422 transitions. [2021-06-05 10:40:33,710 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:40:33,710 INFO L276 IsEmpty]: Start isEmpty. Operand 4280 states and 11422 transitions. [2021-06-05 10:40:33,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:40:33,714 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:40:33,714 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:40:33,714 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2021-06-05 10:40:33,714 INFO L430 AbstractCegarLoop]: === Iteration 162 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:40:33,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:40:33,715 INFO L82 PathProgramCache]: Analyzing trace with hash -657056875, now seen corresponding path program 156 times [2021-06-05 10:40:33,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:40:33,715 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490601389] [2021-06-05 10:40:33,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:40:33,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:40:34,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:40:34,014 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:40:34,014 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490601389] [2021-06-05 10:40:34,014 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490601389] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:40:34,014 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:40:34,014 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 10:40:34,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575753655] [2021-06-05 10:40:34,015 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 10:40:34,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:40:34,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 10:40:34,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-06-05 10:40:34,015 INFO L87 Difference]: Start difference. First operand 4280 states and 11422 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:40:35,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:40:35,013 INFO L93 Difference]: Finished difference Result 5193 states and 13215 transitions. [2021-06-05 10:40:35,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 10:40:35,014 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 10:40:35,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:40:35,019 INFO L225 Difference]: With dead ends: 5193 [2021-06-05 10:40:35,019 INFO L226 Difference]: Without dead ends: 5193 [2021-06-05 10:40:35,019 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 901.8ms TimeCoverageRelationStatistics Valid=295, Invalid=895, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 10:40:35,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5193 states. [2021-06-05 10:40:35,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5193 to 4302. [2021-06-05 10:40:35,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4302 states, 4300 states have (on average 2.6686046511627906) internal successors, (11475), 4301 states have internal predecessors, (11475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:40:35,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4302 states to 4302 states and 11475 transitions. [2021-06-05 10:40:35,077 INFO L78 Accepts]: Start accepts. Automaton has 4302 states and 11475 transitions. Word has length 94 [2021-06-05 10:40:35,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:40:35,077 INFO L482 AbstractCegarLoop]: Abstraction has 4302 states and 11475 transitions. [2021-06-05 10:40:35,077 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:40:35,077 INFO L276 IsEmpty]: Start isEmpty. Operand 4302 states and 11475 transitions. [2021-06-05 10:40:35,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 10:40:35,081 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:40:35,081 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:40:35,081 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2021-06-05 10:40:35,081 INFO L430 AbstractCegarLoop]: === Iteration 163 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:40:35,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:40:35,081 INFO L82 PathProgramCache]: Analyzing trace with hash -1162939367, now seen corresponding path program 157 times [2021-06-05 10:40:35,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:40:35,081 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111566204] [2021-06-05 10:40:35,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:40:35,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:40:35,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:40:35,558 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:40:35,558 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111566204] [2021-06-05 10:40:35,558 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111566204] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:40:35,558 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:40:35,558 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 10:40:35,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126287414] [2021-06-05 10:40:35,559 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 10:40:35,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:40:35,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 10:40:35,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:40:35,559 INFO L87 Difference]: Start difference. First operand 4302 states and 11475 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:40:36,561 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 10:40:36,944 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 10:40:37,147 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 10:40:37,354 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 10:40:37,563 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 10:40:37,842 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-06-05 10:40:37,999 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2021-06-05 10:40:38,160 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 10:40:38,327 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 10:40:38,474 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 Received shutdown request... [2021-06-05 10:40:38,598 WARN L222 SmtUtils]: Removed 18 from assertion stack [2021-06-05 10:40:38,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-05 10:40:38,599 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2021-06-05 10:40:38,599 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-05 10:40:38,600 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 10:40:38,601 WARN L196 ceAbstractionStarter]: Timeout [2021-06-05 10:40:38,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 10:40:38 BasicIcfg [2021-06-05 10:40:38,602 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 10:40:38,602 INFO L168 Benchmark]: Toolchain (without parser) took 705931.18 ms. Allocated memory was 371.2 MB in the beginning and 1.3 GB in the end (delta: 887.1 MB). Free memory was 332.0 MB in the beginning and 767.0 MB in the end (delta: -435.0 MB). Peak memory consumption was 453.3 MB. Max. memory is 16.0 GB. [2021-06-05 10:40:38,602 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 371.2 MB. Free memory was 352.1 MB in the beginning and 352.0 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 10:40:38,602 INFO L168 Benchmark]: CACSL2BoogieTranslator took 948.35 ms. Allocated memory is still 371.2 MB. Free memory was 331.8 MB in the beginning and 316.7 MB in the end (delta: 15.1 MB). Peak memory consumption was 77.2 MB. Max. memory is 16.0 GB. [2021-06-05 10:40:38,603 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.26 ms. Allocated memory is still 371.2 MB. Free memory was 316.7 MB in the beginning and 313.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-06-05 10:40:38,603 INFO L168 Benchmark]: Boogie Preprocessor took 31.99 ms. Allocated memory is still 371.2 MB. Free memory was 313.5 MB in the beginning and 310.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:40:38,603 INFO L168 Benchmark]: RCFGBuilder took 584.67 ms. Allocated memory is still 371.2 MB. Free memory was 310.4 MB in the beginning and 263.2 MB in the end (delta: 47.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.0 GB. [2021-06-05 10:40:38,603 INFO L168 Benchmark]: TraceAbstraction took 704306.34 ms. Allocated memory was 371.2 MB in the beginning and 1.3 GB in the end (delta: 887.1 MB). Free memory was 263.2 MB in the beginning and 767.0 MB in the end (delta: -503.8 MB). Peak memory consumption was 383.3 MB. Max. memory is 16.0 GB. [2021-06-05 10:40:38,603 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 371.2 MB. Free memory was 352.1 MB in the beginning and 352.0 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 948.35 ms. Allocated memory is still 371.2 MB. Free memory was 331.8 MB in the beginning and 316.7 MB in the end (delta: 15.1 MB). Peak memory consumption was 77.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 54.26 ms. Allocated memory is still 371.2 MB. Free memory was 316.7 MB in the beginning and 313.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 31.99 ms. Allocated memory is still 371.2 MB. Free memory was 313.5 MB in the beginning and 310.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 584.67 ms. Allocated memory is still 371.2 MB. Free memory was 310.4 MB in the beginning and 263.2 MB in the end (delta: 47.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 704306.34 ms. Allocated memory was 371.2 MB in the beginning and 1.3 GB in the end (delta: 887.1 MB). Free memory was 263.2 MB in the beginning and 767.0 MB in the end (delta: -503.8 MB). Peak memory consumption was 383.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1675]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (4302states) and FLOYD_HOARE automaton (currently 24 states, 25 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 79 for 101ms.. - TimeoutResultAtElement [Line: 1711]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (4302states) and FLOYD_HOARE automaton (currently 24 states, 25 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 79 for 101ms.. - TimeoutResultAtElement [Line: 1675]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (4302states) and FLOYD_HOARE automaton (currently 24 states, 25 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 79 for 101ms.. - TimeoutResultAtElement [Line: 1712]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (4302states) and FLOYD_HOARE automaton (currently 24 states, 25 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 79 for 101ms.. - TimeoutResultAtElement [Line: 1675]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (4302states) and FLOYD_HOARE automaton (currently 24 states, 25 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 79 for 101ms.. - TimeoutResultAtElement [Line: 1675]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (4302states) and FLOYD_HOARE automaton (currently 24 states, 25 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 79 for 101ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 148 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 704199.6ms, OverallIterations: 163, TraceHistogramMax: 1, EmptinessCheckTime: 673.7ms, AutomataDifference: 601860.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 251.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 47811 SDtfs, 163954 SDslu, 477095 SDs, 0 SdLazy, 214563 SolverSat, 10690 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 101504.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8186 GetRequests, 492 SyntacticMatches, 170 SemanticMatches, 7523 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43677 ImplicationChecksByTransitivity, 539024.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5115occurred in iteration=0, InterpolantAutomatonStates: 4682, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 10994.4ms AutomataMinimizationTime, 162 MinimizatonAttempts, 608052 StatesRemovedByMinimization, 161 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 258.5ms SsaConstructionTime, 1981.3ms SatisfiabilityAnalysisTime, 86776.6ms InterpolantComputationTime, 15208 NumberOfCodeBlocks, 15208 NumberOfCodeBlocksAsserted, 163 NumberOfCheckSat, 15045 ConstructedInterpolants, 0 QuantifiedInterpolants, 234976 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 163 InterpolantComputations, 163 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