/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/goblint-regression/28-race_reach_08-cond_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 11:30:36,361 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 11:30:36,362 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 11:30:36,379 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 11:30:36,386 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 11:30:36,386 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 11:30:36,387 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 11:30:36,388 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 11:30:36,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 11:30:36,389 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 11:30:36,390 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 11:30:36,391 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 11:30:36,392 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 11:30:36,393 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 11:30:36,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 11:30:36,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 11:30:36,396 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-05 11:30:36,400 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 11:30:36,401 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 11:30:36,401 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 11:30:36,404 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 11:30:36,426 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 11:30:36,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 11:30:36,427 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 11:30:36,427 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 11:30:36,429 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 11:30:36,429 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 11:30:36,429 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 11:30:36,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 11:30:36,429 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 11:30:36,429 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 11:30:36,430 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 11:30:36,430 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 11:30:36,430 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 11:30:36,430 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 11:30:36,430 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 11:30:36,430 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 11:30:36,430 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 11:30:36,430 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 11:30:36,430 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 11:30:36,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 11:30:36,431 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 11:30:36,431 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 11:30:36,431 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 11:30:36,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 11:30:36,431 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 11:30:36,431 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 11:30:36,431 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 11:30:36,431 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 11:30:36,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 11:30:36,431 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 11:30:36,431 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 11:30:36,432 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 11:30:36,432 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 11:30:36,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 11:30:36,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 11:30:36,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 11:30:36,692 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 11:30:36,692 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 11:30:36,693 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_08-cond_racefree.i [2021-06-05 11:30:36,740 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97ce68114/1483ae738b6947619db81f549355d2fd/FLAG789c84964 [2021-06-05 11:30:37,183 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 11:30:37,184 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_08-cond_racefree.i [2021-06-05 11:30:37,196 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97ce68114/1483ae738b6947619db81f549355d2fd/FLAG789c84964 [2021-06-05 11:30:37,211 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97ce68114/1483ae738b6947619db81f549355d2fd [2021-06-05 11:30:37,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 11:30:37,215 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 11:30:37,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 11:30:37,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 11:30:37,220 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 11:30:37,221 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 11:30:37" (1/1) ... [2021-06-05 11:30:37,221 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@626dc8d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:30:37, skipping insertion in model container [2021-06-05 11:30:37,222 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 11:30:37" (1/1) ... [2021-06-05 11:30:37,226 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 11:30:37,261 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 11:30:37,527 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_08-cond_racefree.i[41060,41073] [2021-06-05 11:30:37,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 11:30:37,544 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 11:30:37,573 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_08-cond_racefree.i[41060,41073] [2021-06-05 11:30:37,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 11:30:37,660 INFO L208 MainTranslator]: Completed translation [2021-06-05 11:30:37,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:30:37 WrapperNode [2021-06-05 11:30:37,661 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 11:30:37,661 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 11:30:37,662 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 11:30:37,662 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 11:30:37,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:30:37" (1/1) ... [2021-06-05 11:30:37,675 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:30:37" (1/1) ... [2021-06-05 11:30:37,689 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 11:30:37,690 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 11:30:37,690 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 11:30:37,690 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 11:30:37,695 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:30:37" (1/1) ... [2021-06-05 11:30:37,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:30:37" (1/1) ... [2021-06-05 11:30:37,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:30:37" (1/1) ... [2021-06-05 11:30:37,698 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:30:37" (1/1) ... [2021-06-05 11:30:37,702 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:30:37" (1/1) ... [2021-06-05 11:30:37,705 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:30:37" (1/1) ... [2021-06-05 11:30:37,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:30:37" (1/1) ... [2021-06-05 11:30:37,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 11:30:37,708 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 11:30:37,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 11:30:37,709 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 11:30:37,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:30:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 11:30:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 11:30:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 11:30:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-05 11:30:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 11:30:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-06-05 11:30:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-06-05 11:30:37,769 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-06-05 11:30:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 11:30:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 11:30:37,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 11:30:37,770 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 11:30:38,062 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 11:30:38,062 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-06-05 11:30:38,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 11:30:38 BoogieIcfgContainer [2021-06-05 11:30:38,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 11:30:38,064 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 11:30:38,064 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 11:30:38,066 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 11:30:38,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 11:30:37" (1/3) ... [2021-06-05 11:30:38,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fda0b47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 11:30:38, skipping insertion in model container [2021-06-05 11:30:38,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:30:37" (2/3) ... [2021-06-05 11:30:38,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fda0b47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 11:30:38, skipping insertion in model container [2021-06-05 11:30:38,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 11:30:38" (3/3) ... [2021-06-05 11:30:38,070 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_08-cond_racefree.i [2021-06-05 11:30:38,073 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 11:30:38,074 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 11:30:38,074 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 11:30:38,074 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 11:30:38,098 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,098 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,099 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,099 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,099 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,099 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,099 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,100 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,100 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,100 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,100 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,100 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,100 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,101 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,101 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,101 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,101 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,102 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,102 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,102 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,103 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,103 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,103 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,103 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,104 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,105 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,106 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,106 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,106 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,106 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,106 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,106 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,106 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,108 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,108 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,108 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,110 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,110 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,110 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,110 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,111 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,111 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,111 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,111 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,111 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:38,116 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-06-05 11:30:38,131 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 11:30:38,149 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 11:30:38,149 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 11:30:38,149 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 11:30:38,149 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 11:30:38,150 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 11:30:38,150 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 11:30:38,150 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 11:30:38,150 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 11:30:38,159 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 109 places, 121 transitions, 250 flow [2021-06-05 11:30:38,206 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1021 states, 1015 states have (on average 2.304433497536946) internal successors, (2339), 1020 states have internal predecessors, (2339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:38,208 INFO L276 IsEmpty]: Start isEmpty. Operand has 1021 states, 1015 states have (on average 2.304433497536946) internal successors, (2339), 1020 states have internal predecessors, (2339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:38,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-05 11:30:38,215 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:30:38,216 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] [2021-06-05 11:30:38,216 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:30:38,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:30:38,220 INFO L82 PathProgramCache]: Analyzing trace with hash -53598277, now seen corresponding path program 1 times [2021-06-05 11:30:38,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:30:38,226 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042537655] [2021-06-05 11:30:38,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:30:38,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:30:38,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:30:38,385 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:30:38,385 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042537655] [2021-06-05 11:30:38,386 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042537655] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:30:38,386 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:30:38,386 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-05 11:30:38,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981677317] [2021-06-05 11:30:38,389 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-05 11:30:38,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:30:38,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-05 11:30:38,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-05 11:30:38,399 INFO L87 Difference]: Start difference. First operand has 1021 states, 1015 states have (on average 2.304433497536946) internal successors, (2339), 1020 states have internal predecessors, (2339), 0 states have call successors, (0), 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 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:38,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:30:38,419 INFO L93 Difference]: Finished difference Result 997 states and 1927 transitions. [2021-06-05 11:30:38,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-05 11:30:38,420 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-06-05 11:30:38,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:30:38,428 INFO L225 Difference]: With dead ends: 997 [2021-06-05 11:30:38,428 INFO L226 Difference]: Without dead ends: 518 [2021-06-05 11:30:38,429 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-05 11:30:38,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2021-06-05 11:30:38,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 518. [2021-06-05 11:30:38,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 516 states have (on average 1.8585271317829457) internal successors, (959), 517 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:38,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 959 transitions. [2021-06-05 11:30:38,481 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 959 transitions. Word has length 51 [2021-06-05 11:30:38,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:30:38,481 INFO L482 AbstractCegarLoop]: Abstraction has 518 states and 959 transitions. [2021-06-05 11:30:38,482 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:38,482 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 959 transitions. [2021-06-05 11:30:38,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-05 11:30:38,483 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:30:38,483 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] [2021-06-05 11:30:38,483 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 11:30:38,483 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:30:38,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:30:38,484 INFO L82 PathProgramCache]: Analyzing trace with hash 75484442, now seen corresponding path program 1 times [2021-06-05 11:30:38,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:30:38,484 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480496620] [2021-06-05 11:30:38,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:30:38,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:30:38,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:30:38,537 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:30:38,537 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480496620] [2021-06-05 11:30:38,537 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480496620] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:30:38,537 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:30:38,537 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 11:30:38,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118735824] [2021-06-05 11:30:38,538 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 11:30:38,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:30:38,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 11:30:38,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 11:30:38,539 INFO L87 Difference]: Start difference. First operand 518 states and 959 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:38,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:30:38,550 INFO L93 Difference]: Finished difference Result 504 states and 944 transitions. [2021-06-05 11:30:38,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 11:30:38,551 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-06-05 11:30:38,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:30:38,553 INFO L225 Difference]: With dead ends: 504 [2021-06-05 11:30:38,553 INFO L226 Difference]: Without dead ends: 504 [2021-06-05 11:30:38,553 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 11:30:38,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2021-06-05 11:30:38,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 504. [2021-06-05 11:30:38,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 503 states have (on average 1.8767395626242545) internal successors, (944), 503 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:38,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 944 transitions. [2021-06-05 11:30:38,571 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 944 transitions. Word has length 51 [2021-06-05 11:30:38,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:30:38,571 INFO L482 AbstractCegarLoop]: Abstraction has 504 states and 944 transitions. [2021-06-05 11:30:38,571 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:38,571 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 944 transitions. [2021-06-05 11:30:38,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 11:30:38,573 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:30:38,573 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] [2021-06-05 11:30:38,573 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 11:30:38,573 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:30:38,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:30:38,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1201830714, now seen corresponding path program 1 times [2021-06-05 11:30:38,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:30:38,574 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294354717] [2021-06-05 11:30:38,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:30:38,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:30:38,671 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:30:38,672 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:30:38,672 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294354717] [2021-06-05 11:30:38,672 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294354717] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:30:38,672 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242146594] [2021-06-05 11:30:38,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:30:38,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:30:38,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 3 conjunts are in the unsatisfiable core [2021-06-05 11:30:38,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:30:38,932 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-05 11:30:38,932 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1242146594] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:30:38,932 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-05 11:30:38,933 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2021-06-05 11:30:38,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536628319] [2021-06-05 11:30:38,933 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 11:30:38,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:30:38,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 11:30:38,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-06-05 11:30:38,934 INFO L87 Difference]: Start difference. First operand 504 states and 944 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:38,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:30:38,945 INFO L93 Difference]: Finished difference Result 550 states and 1011 transitions. [2021-06-05 11:30:38,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 11:30:38,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-06-05 11:30:38,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:30:38,949 INFO L225 Difference]: With dead ends: 550 [2021-06-05 11:30:38,949 INFO L226 Difference]: Without dead ends: 504 [2021-06-05 11:30:38,949 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 14.1ms TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-06-05 11:30:38,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2021-06-05 11:30:38,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 504. [2021-06-05 11:30:38,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 503 states have (on average 1.831013916500994) internal successors, (921), 503 states have internal predecessors, (921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:38,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 921 transitions. [2021-06-05 11:30:38,958 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 921 transitions. Word has length 61 [2021-06-05 11:30:38,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:30:38,959 INFO L482 AbstractCegarLoop]: Abstraction has 504 states and 921 transitions. [2021-06-05 11:30:38,959 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:38,959 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 921 transitions. [2021-06-05 11:30:38,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-06-05 11:30:38,968 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:30:38,968 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] [2021-06-05 11:30:39,185 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-06-05 11:30:39,185 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:30:39,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:30:39,185 INFO L82 PathProgramCache]: Analyzing trace with hash -1784054503, now seen corresponding path program 1 times [2021-06-05 11:30:39,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:30:39,186 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448625149] [2021-06-05 11:30:39,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:30:39,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:30:39,253 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:30:39,253 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:30:39,253 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448625149] [2021-06-05 11:30:39,253 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448625149] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:30:39,253 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068254618] [2021-06-05 11:30:39,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:30:39,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:30:39,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-05 11:30:39,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:30:39,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:30:39,422 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068254618] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:30:39,422 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 11:30:39,422 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-06-05 11:30:39,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288556225] [2021-06-05 11:30:39,422 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 11:30:39,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:30:39,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 11:30:39,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-05 11:30:39,423 INFO L87 Difference]: Start difference. First operand 504 states and 921 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:39,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:30:39,451 INFO L93 Difference]: Finished difference Result 182 states and 291 transitions. [2021-06-05 11:30:39,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 11:30:39,452 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-06-05 11:30:39,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:30:39,452 INFO L225 Difference]: With dead ends: 182 [2021-06-05 11:30:39,452 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 11:30:39,452 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 25.2ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-06-05 11:30:39,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 11:30:39,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 11:30:39,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:39,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 11:30:39,453 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 63 [2021-06-05 11:30:39,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:30:39,453 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 11:30:39,453 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:39,453 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 11:30:39,453 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 11:30:39,672 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:30:39,673 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-06-05 11:30:39,674 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 11:30:39,675 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 11:30:39,675 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 11:30:39,675 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 11:30:39,675 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 11:30:39,675 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 11:30:39,675 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 11:30:39,675 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 11:30:39,675 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-06-05 11:30:39,676 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 109 places, 121 transitions, 250 flow [2021-06-05 11:30:39,688 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1021 states, 1015 states have (on average 2.304433497536946) internal successors, (2339), 1020 states have internal predecessors, (2339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:39,689 INFO L276 IsEmpty]: Start isEmpty. Operand has 1021 states, 1015 states have (on average 2.304433497536946) internal successors, (2339), 1020 states have internal predecessors, (2339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:39,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-06-05 11:30:39,691 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:30:39,691 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:30:39,691 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-05 11:30:39,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:30:39,691 INFO L82 PathProgramCache]: Analyzing trace with hash 742151311, now seen corresponding path program 1 times [2021-06-05 11:30:39,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:30:39,691 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899626401] [2021-06-05 11:30:39,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:30:39,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 11:30:39,712 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 11:30:39,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 11:30:39,733 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 11:30:39,755 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-05 11:30:39,755 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-06-05 11:30:39,755 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 11:30:39,755 INFO L315 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2021-06-05 11:30:39,756 WARN L242 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-05 11:30:39,756 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-06-05 11:30:39,765 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,765 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,765 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,765 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,766 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,766 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,766 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,766 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,766 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,766 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,766 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,766 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,767 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,767 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,767 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,767 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,767 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,768 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,768 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,768 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,768 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,768 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,768 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,768 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,768 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,768 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,768 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,768 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,768 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,769 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,769 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,769 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,770 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,770 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,770 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,770 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,770 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,770 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,770 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,770 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,770 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,770 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,770 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,770 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,771 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,771 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,771 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,771 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,771 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,771 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,771 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,771 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,771 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,771 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,771 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,772 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,772 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,774 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,774 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,774 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,774 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,774 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,774 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,774 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,774 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,775 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,775 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,775 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,775 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,775 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,775 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,775 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,775 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,776 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,776 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,776 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,776 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,776 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,776 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,776 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,776 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,778 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,778 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,778 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,778 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,780 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,780 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,780 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,780 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,781 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:39,788 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-05 11:30:39,788 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 11:30:39,789 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 11:30:39,789 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 11:30:39,789 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 11:30:39,792 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 11:30:39,792 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 11:30:39,792 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 11:30:39,792 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 11:30:39,792 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 11:30:39,797 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 134 places, 151 transitions, 320 flow [2021-06-05 11:30:40,901 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 23078 states, 23069 states have (on average 3.5296285057869867) internal successors, (81425), 23077 states have internal predecessors, (81425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:40,942 INFO L276 IsEmpty]: Start isEmpty. Operand has 23078 states, 23069 states have (on average 3.5296285057869867) internal successors, (81425), 23077 states have internal predecessors, (81425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:40,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-05 11:30:40,943 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:30:40,943 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] [2021-06-05 11:30:40,943 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:30:40,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:30:40,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1813572722, now seen corresponding path program 1 times [2021-06-05 11:30:40,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:30:40,944 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883462423] [2021-06-05 11:30:40,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:30:40,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:30:40,980 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 11:30:40,980 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:30:40,980 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883462423] [2021-06-05 11:30:40,980 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883462423] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:30:40,980 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:30:40,980 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-05 11:30:40,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734896992] [2021-06-05 11:30:40,981 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-05 11:30:40,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:30:40,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-05 11:30:40,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-05 11:30:41,041 INFO L87 Difference]: Start difference. First operand has 23078 states, 23069 states have (on average 3.5296285057869867) internal successors, (81425), 23077 states have internal predecessors, (81425), 0 states have call successors, (0), 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 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:41,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:30:41,232 INFO L93 Difference]: Finished difference Result 22525 states and 65392 transitions. [2021-06-05 11:30:41,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-05 11:30:41,233 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-06-05 11:30:41,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:30:41,277 INFO L225 Difference]: With dead ends: 22525 [2021-06-05 11:30:41,278 INFO L226 Difference]: Without dead ends: 11190 [2021-06-05 11:30:41,278 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-05 11:30:41,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11190 states. [2021-06-05 11:30:41,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11190 to 11190. [2021-06-05 11:30:41,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11190 states, 11187 states have (on average 2.85885402699562) internal successors, (31982), 11189 states have internal predecessors, (31982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:41,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11190 states to 11190 states and 31982 transitions. [2021-06-05 11:30:41,598 INFO L78 Accepts]: Start accepts. Automaton has 11190 states and 31982 transitions. Word has length 51 [2021-06-05 11:30:41,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:30:41,599 INFO L482 AbstractCegarLoop]: Abstraction has 11190 states and 31982 transitions. [2021-06-05 11:30:41,599 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:41,599 INFO L276 IsEmpty]: Start isEmpty. Operand 11190 states and 31982 transitions. [2021-06-05 11:30:41,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-05 11:30:41,599 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:30:41,599 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] [2021-06-05 11:30:41,600 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 11:30:41,600 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:30:41,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:30:41,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1942655441, now seen corresponding path program 1 times [2021-06-05 11:30:41,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:30:41,600 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578067548] [2021-06-05 11:30:41,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:30:41,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:30:41,619 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 11:30:41,619 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:30:41,619 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578067548] [2021-06-05 11:30:41,619 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578067548] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:30:41,619 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:30:41,619 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 11:30:41,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709274831] [2021-06-05 11:30:41,620 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 11:30:41,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:30:41,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 11:30:41,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 11:30:41,620 INFO L87 Difference]: Start difference. First operand 11190 states and 31982 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:41,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:30:41,726 INFO L93 Difference]: Finished difference Result 11176 states and 31967 transitions. [2021-06-05 11:30:41,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 11:30:41,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-06-05 11:30:41,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:30:41,761 INFO L225 Difference]: With dead ends: 11176 [2021-06-05 11:30:41,761 INFO L226 Difference]: Without dead ends: 11176 [2021-06-05 11:30:41,761 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 11:30:41,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11176 states. [2021-06-05 11:30:42,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11176 to 11176. [2021-06-05 11:30:42,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11176 states, 11174 states have (on average 2.8608376588509037) internal successors, (31967), 11175 states have internal predecessors, (31967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:42,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11176 states to 11176 states and 31967 transitions. [2021-06-05 11:30:42,053 INFO L78 Accepts]: Start accepts. Automaton has 11176 states and 31967 transitions. Word has length 51 [2021-06-05 11:30:42,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:30:42,053 INFO L482 AbstractCegarLoop]: Abstraction has 11176 states and 31967 transitions. [2021-06-05 11:30:42,054 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:42,054 INFO L276 IsEmpty]: Start isEmpty. Operand 11176 states and 31967 transitions. [2021-06-05 11:30:42,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 11:30:42,055 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:30:42,055 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] [2021-06-05 11:30:42,055 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 11:30:42,055 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:30:42,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:30:42,056 INFO L82 PathProgramCache]: Analyzing trace with hash -1169624843, now seen corresponding path program 1 times [2021-06-05 11:30:42,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:30:42,056 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108213383] [2021-06-05 11:30:42,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:30:42,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:30:42,103 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:30:42,103 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:30:42,103 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108213383] [2021-06-05 11:30:42,103 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108213383] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:30:42,103 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908191061] [2021-06-05 11:30:42,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:30:42,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:30:42,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 3 conjunts are in the unsatisfiable core [2021-06-05 11:30:42,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:30:42,262 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-05 11:30:42,262 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908191061] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:30:42,262 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-05 11:30:42,263 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2021-06-05 11:30:42,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554838785] [2021-06-05 11:30:42,263 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 11:30:42,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:30:42,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 11:30:42,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-06-05 11:30:42,266 INFO L87 Difference]: Start difference. First operand 11176 states and 31967 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:42,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:30:42,309 INFO L93 Difference]: Finished difference Result 12280 states and 34587 transitions. [2021-06-05 11:30:42,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 11:30:42,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-06-05 11:30:42,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:30:42,327 INFO L225 Difference]: With dead ends: 12280 [2021-06-05 11:30:42,327 INFO L226 Difference]: Without dead ends: 11176 [2021-06-05 11:30:42,328 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 11.3ms TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-06-05 11:30:42,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11176 states. [2021-06-05 11:30:42,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11176 to 11176. [2021-06-05 11:30:42,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11176 states, 11174 states have (on average 2.811437265079649) internal successors, (31415), 11175 states have internal predecessors, (31415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:42,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11176 states to 11176 states and 31415 transitions. [2021-06-05 11:30:42,624 INFO L78 Accepts]: Start accepts. Automaton has 11176 states and 31415 transitions. Word has length 61 [2021-06-05 11:30:42,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:30:42,624 INFO L482 AbstractCegarLoop]: Abstraction has 11176 states and 31415 transitions. [2021-06-05 11:30:42,625 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:42,625 INFO L276 IsEmpty]: Start isEmpty. Operand 11176 states and 31415 transitions. [2021-06-05 11:30:42,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-06-05 11:30:42,626 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:30:42,626 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] [2021-06-05 11:30:42,846 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:30:42,846 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:30:42,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:30:42,847 INFO L82 PathProgramCache]: Analyzing trace with hash -125205772, now seen corresponding path program 1 times [2021-06-05 11:30:42,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:30:42,847 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687072388] [2021-06-05 11:30:42,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:30:42,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:30:42,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:30:42,879 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:30:42,879 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687072388] [2021-06-05 11:30:42,879 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687072388] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:30:42,879 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1856350679] [2021-06-05 11:30:42,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:30:42,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:30:42,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-05 11:30:42,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:30:43,053 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:30:43,054 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1856350679] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:30:43,054 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 11:30:43,054 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-06-05 11:30:43,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076635591] [2021-06-05 11:30:43,054 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 11:30:43,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:30:43,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 11:30:43,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-05 11:30:43,055 INFO L87 Difference]: Start difference. First operand 11176 states and 31415 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:43,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:30:43,114 INFO L93 Difference]: Finished difference Result 10854 states and 30785 transitions. [2021-06-05 11:30:43,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 11:30:43,114 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-06-05 11:30:43,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:30:43,129 INFO L225 Difference]: With dead ends: 10854 [2021-06-05 11:30:43,130 INFO L226 Difference]: Without dead ends: 10854 [2021-06-05 11:30:43,130 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 20.5ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-06-05 11:30:43,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10854 states. [2021-06-05 11:30:43,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10854 to 10854. [2021-06-05 11:30:43,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10854 states, 10853 states have (on average 2.8365428913664426) internal successors, (30785), 10853 states have internal predecessors, (30785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:43,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10854 states to 10854 states and 30785 transitions. [2021-06-05 11:30:43,376 INFO L78 Accepts]: Start accepts. Automaton has 10854 states and 30785 transitions. Word has length 63 [2021-06-05 11:30:43,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:30:43,376 INFO L482 AbstractCegarLoop]: Abstraction has 10854 states and 30785 transitions. [2021-06-05 11:30:43,376 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:43,376 INFO L276 IsEmpty]: Start isEmpty. Operand 10854 states and 30785 transitions. [2021-06-05 11:30:43,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-06-05 11:30:43,385 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:30:43,385 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:30:43,601 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:30:43,601 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:30:43,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:30:43,601 INFO L82 PathProgramCache]: Analyzing trace with hash -2088754569, now seen corresponding path program 1 times [2021-06-05 11:30:43,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:30:43,602 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051989839] [2021-06-05 11:30:43,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:30:43,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:30:43,665 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-06-05 11:30:43,665 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:30:43,666 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051989839] [2021-06-05 11:30:43,666 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051989839] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:30:43,666 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:30:43,666 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 11:30:43,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180104660] [2021-06-05 11:30:43,666 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 11:30:43,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:30:43,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 11:30:43,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 11:30:43,667 INFO L87 Difference]: Start difference. First operand 10854 states and 30785 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:43,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:30:43,744 INFO L93 Difference]: Finished difference Result 12121 states and 33983 transitions. [2021-06-05 11:30:43,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 11:30:43,745 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-06-05 11:30:43,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:30:43,759 INFO L225 Difference]: With dead ends: 12121 [2021-06-05 11:30:43,759 INFO L226 Difference]: Without dead ends: 10534 [2021-06-05 11:30:43,759 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 17.4ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-05 11:30:43,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10534 states. [2021-06-05 11:30:43,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10534 to 10534. [2021-06-05 11:30:43,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10534 states, 10533 states have (on average 2.831576948637615) internal successors, (29825), 10533 states have internal predecessors, (29825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:43,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10534 states to 10534 states and 29825 transitions. [2021-06-05 11:30:43,958 INFO L78 Accepts]: Start accepts. Automaton has 10534 states and 29825 transitions. Word has length 73 [2021-06-05 11:30:43,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:30:43,959 INFO L482 AbstractCegarLoop]: Abstraction has 10534 states and 29825 transitions. [2021-06-05 11:30:43,959 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:43,959 INFO L276 IsEmpty]: Start isEmpty. Operand 10534 states and 29825 transitions. [2021-06-05 11:30:43,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-06-05 11:30:43,968 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:30:43,968 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:30:43,968 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 11:30:43,968 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:30:43,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:30:43,969 INFO L82 PathProgramCache]: Analyzing trace with hash 156927753, now seen corresponding path program 1 times [2021-06-05 11:30:43,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:30:43,969 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140158123] [2021-06-05 11:30:43,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:30:43,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:30:44,069 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-05 11:30:44,070 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:30:44,070 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140158123] [2021-06-05 11:30:44,070 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140158123] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:30:44,070 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:30:44,070 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 11:30:44,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179772605] [2021-06-05 11:30:44,070 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 11:30:44,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:30:44,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 11:30:44,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 11:30:44,071 INFO L87 Difference]: Start difference. First operand 10534 states and 29825 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:44,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:30:44,126 INFO L93 Difference]: Finished difference Result 10946 states and 29733 transitions. [2021-06-05 11:30:44,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 11:30:44,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-06-05 11:30:44,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:30:44,139 INFO L225 Difference]: With dead ends: 10946 [2021-06-05 11:30:44,139 INFO L226 Difference]: Without dead ends: 10922 [2021-06-05 11:30:44,140 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 11:30:44,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10922 states. [2021-06-05 11:30:44,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10922 to 9074. [2021-06-05 11:30:44,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9074 states, 9071 states have (on average 2.730790431043986) internal successors, (24771), 9073 states have internal predecessors, (24771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:44,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9074 states to 9074 states and 24771 transitions. [2021-06-05 11:30:44,359 INFO L78 Accepts]: Start accepts. Automaton has 9074 states and 24771 transitions. Word has length 81 [2021-06-05 11:30:44,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:30:44,359 INFO L482 AbstractCegarLoop]: Abstraction has 9074 states and 24771 transitions. [2021-06-05 11:30:44,359 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:44,359 INFO L276 IsEmpty]: Start isEmpty. Operand 9074 states and 24771 transitions. [2021-06-05 11:30:44,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-06-05 11:30:44,364 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:30:44,364 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:30:44,365 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 11:30:44,365 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:30:44,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:30:44,365 INFO L82 PathProgramCache]: Analyzing trace with hash 338890951, now seen corresponding path program 1 times [2021-06-05 11:30:44,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:30:44,365 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803706617] [2021-06-05 11:30:44,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:30:44,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:30:44,409 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:30:44,409 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:30:44,409 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803706617] [2021-06-05 11:30:44,409 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803706617] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:30:44,409 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435121835] [2021-06-05 11:30:44,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:30:44,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:30:44,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 6 conjunts are in the unsatisfiable core [2021-06-05 11:30:44,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:30:44,589 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:30:44,589 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435121835] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:30:44,590 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 11:30:44,590 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-06-05 11:30:44,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126310223] [2021-06-05 11:30:44,592 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 11:30:44,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:30:44,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 11:30:44,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-06-05 11:30:44,593 INFO L87 Difference]: Start difference. First operand 9074 states and 24771 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:44,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:30:44,684 INFO L93 Difference]: Finished difference Result 3640 states and 9563 transitions. [2021-06-05 11:30:44,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 11:30:44,684 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-06-05 11:30:44,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:30:44,684 INFO L225 Difference]: With dead ends: 3640 [2021-06-05 11:30:44,685 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 11:30:44,685 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 44.2ms TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-06-05 11:30:44,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 11:30:44,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 11:30:44,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:44,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 11:30:44,685 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 83 [2021-06-05 11:30:44,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:30:44,685 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 11:30:44,685 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:44,685 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 11:30:44,685 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 11:30:44,892 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-06-05 11:30:44,893 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-06-05 11:30:44,893 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 11:30:44,894 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 11:30:44,894 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 11:30:44,894 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 11:30:44,894 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 11:30:44,894 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 11:30:44,894 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 11:30:44,894 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 11:30:44,894 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-06-05 11:30:44,895 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 134 places, 151 transitions, 320 flow [2021-06-05 11:30:45,766 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 23078 states, 23069 states have (on average 3.5296285057869867) internal successors, (81425), 23077 states have internal predecessors, (81425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:45,792 INFO L276 IsEmpty]: Start isEmpty. Operand has 23078 states, 23069 states have (on average 3.5296285057869867) internal successors, (81425), 23077 states have internal predecessors, (81425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:30:45,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-06-05 11:30:45,796 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:30:45,796 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:30:45,796 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-05 11:30:45,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:30:45,796 INFO L82 PathProgramCache]: Analyzing trace with hash -1542821756, now seen corresponding path program 1 times [2021-06-05 11:30:45,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:30:45,796 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482623062] [2021-06-05 11:30:45,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:30:45,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 11:30:45,806 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 11:30:45,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 11:30:45,813 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 11:30:45,820 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-05 11:30:45,820 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-06-05 11:30:45,820 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-05 11:30:45,820 INFO L315 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2021-06-05 11:30:45,820 WARN L242 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-05 11:30:45,820 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-06-05 11:30:45,827 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,827 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,827 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,827 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,827 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,827 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,827 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,827 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,827 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,827 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,827 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,827 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,827 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,828 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,828 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,828 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,828 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,828 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,828 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,828 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,828 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,828 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,828 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,828 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,828 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,828 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,828 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,828 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,828 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,828 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,829 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,829 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,829 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,829 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,829 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,829 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,829 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,829 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,829 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,829 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,829 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,829 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,829 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,829 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,829 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,829 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,829 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,830 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,830 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,830 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,830 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,830 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,830 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,830 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,830 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,830 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,830 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,830 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,830 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,830 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,830 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,830 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,830 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,830 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,831 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,831 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,831 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,831 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,831 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,831 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,831 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,831 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,831 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,831 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,831 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,831 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,831 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,831 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,831 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,831 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,831 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,832 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,832 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,832 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,832 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,832 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,832 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,832 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,832 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,832 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,832 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,832 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,832 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,832 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,832 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,832 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,832 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,832 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,833 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,833 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,833 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,833 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,833 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,833 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,833 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,833 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,833 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,833 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,833 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,834 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,834 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,834 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,834 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,834 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,834 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,834 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,834 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,835 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,835 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,835 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,835 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,835 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,835 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,835 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,836 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,836 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,836 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,836 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,836 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,836 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,837 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,837 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,837 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,837 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,837 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:30:45,840 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-05 11:30:45,841 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 11:30:45,841 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 11:30:45,841 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 11:30:45,841 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 11:30:45,841 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 11:30:45,841 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 11:30:45,841 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 11:30:45,841 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 11:30:45,841 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 11:30:45,842 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 159 places, 181 transitions, 392 flow [2021-06-05 11:37:44,667 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 537565 states, 537551 states have (on average 4.730494408902597) internal successors, (2542882), 537564 states have internal predecessors, (2542882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:37:45,274 INFO L276 IsEmpty]: Start isEmpty. Operand has 537565 states, 537551 states have (on average 4.730494408902597) internal successors, (2542882), 537564 states have internal predecessors, (2542882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:37:45,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-05 11:37:45,275 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:37:45,275 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] [2021-06-05 11:37:45,275 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:37:45,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:37:45,275 INFO L82 PathProgramCache]: Analyzing trace with hash 284029158, now seen corresponding path program 1 times [2021-06-05 11:37:45,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:37:45,275 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601963954] [2021-06-05 11:37:45,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:37:45,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:37:45,288 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 11:37:45,289 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:37:45,289 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601963954] [2021-06-05 11:37:45,289 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601963954] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:37:45,289 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:37:45,289 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 11:37:45,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337680470] [2021-06-05 11:37:45,289 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 11:37:45,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:37:45,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 11:37:45,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 11:37:45,864 INFO L87 Difference]: Start difference. First operand has 537565 states, 537551 states have (on average 4.730494408902597) internal successors, (2542882), 537564 states have internal predecessors, (2542882), 0 states have call successors, (0), 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 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:37:51,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:37:51,181 INFO L93 Difference]: Finished difference Result 524825 states and 2019344 transitions. [2021-06-05 11:37:51,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 11:37:51,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-06-05 11:37:51,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:37:53,260 INFO L225 Difference]: With dead ends: 524825 [2021-06-05 11:37:53,261 INFO L226 Difference]: Without dead ends: 256632 [2021-06-05 11:37:53,261 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 11:38:11,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256632 states. [2021-06-05 11:38:15,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256632 to 256632. [2021-06-05 11:38:16,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256632 states, 256629 states have (on average 3.8198333002115894) internal successors, (980280), 256631 states have internal predecessors, (980280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:38:17,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256632 states to 256632 states and 980280 transitions. [2021-06-05 11:38:17,506 INFO L78 Accepts]: Start accepts. Automaton has 256632 states and 980280 transitions. Word has length 51 [2021-06-05 11:38:17,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:38:17,506 INFO L482 AbstractCegarLoop]: Abstraction has 256632 states and 980280 transitions. [2021-06-05 11:38:17,506 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:38:17,506 INFO L276 IsEmpty]: Start isEmpty. Operand 256632 states and 980280 transitions. [2021-06-05 11:38:17,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 11:38:17,507 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:38:17,507 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] [2021-06-05 11:38:17,507 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-05 11:38:17,507 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:38:17,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:38:17,508 INFO L82 PathProgramCache]: Analyzing trace with hash -1053960626, now seen corresponding path program 1 times [2021-06-05 11:38:17,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:38:17,508 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541180213] [2021-06-05 11:38:17,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:38:17,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:38:17,535 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:38:17,535 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:38:17,535 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541180213] [2021-06-05 11:38:17,535 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541180213] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:38:17,535 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404698676] [2021-06-05 11:38:17,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:38:17,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:38:17,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 3 conjunts are in the unsatisfiable core [2021-06-05 11:38:17,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:38:17,642 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-05 11:38:17,643 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [404698676] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:38:17,643 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-05 11:38:17,643 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2021-06-05 11:38:17,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082255033] [2021-06-05 11:38:17,643 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 11:38:17,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:38:17,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 11:38:17,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-06-05 11:38:17,644 INFO L87 Difference]: Start difference. First operand 256632 states and 980280 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:38:20,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:38:20,307 INFO L93 Difference]: Finished difference Result 282070 states and 1064895 transitions. [2021-06-05 11:38:20,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 11:38:20,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-06-05 11:38:20,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:38:21,875 INFO L225 Difference]: With dead ends: 282070 [2021-06-05 11:38:21,875 INFO L226 Difference]: Without dead ends: 256632 [2021-06-05 11:38:21,876 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 8.0ms TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-06-05 11:38:39,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256632 states. [2021-06-05 11:38:43,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256632 to 256632. [2021-06-05 11:38:43,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256632 states, 256629 states have (on average 3.7702714813992184) internal successors, (967561), 256631 states have internal predecessors, (967561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:38:45,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256632 states to 256632 states and 967561 transitions. [2021-06-05 11:38:45,406 INFO L78 Accepts]: Start accepts. Automaton has 256632 states and 967561 transitions. Word has length 61 [2021-06-05 11:38:45,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:38:45,406 INFO L482 AbstractCegarLoop]: Abstraction has 256632 states and 967561 transitions. [2021-06-05 11:38:45,407 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:38:45,407 INFO L276 IsEmpty]: Start isEmpty. Operand 256632 states and 967561 transitions. [2021-06-05 11:38:45,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-06-05 11:38:45,408 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:38:45,408 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] [2021-06-05 11:38:45,624 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:38:45,624 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:38:45,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:38:45,624 INFO L82 PathProgramCache]: Analyzing trace with hash -641037139, now seen corresponding path program 1 times [2021-06-05 11:38:45,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:38:45,624 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792322477] [2021-06-05 11:38:45,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:38:45,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:38:45,647 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:38:45,647 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:38:45,647 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792322477] [2021-06-05 11:38:45,647 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792322477] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:38:45,647 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921010820] [2021-06-05 11:38:45,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:38:45,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:38:45,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-05 11:38:45,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:38:45,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:38:45,792 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921010820] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:38:45,792 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 11:38:45,792 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-06-05 11:38:45,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248215287] [2021-06-05 11:38:45,793 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 11:38:45,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:38:45,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 11:38:45,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-05 11:38:45,795 INFO L87 Difference]: Start difference. First operand 256632 states and 967561 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:38:47,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:38:47,841 INFO L93 Difference]: Finished difference Result 256310 states and 966931 transitions. [2021-06-05 11:38:47,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 11:38:47,842 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-06-05 11:38:47,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:38:49,170 INFO L225 Difference]: With dead ends: 256310 [2021-06-05 11:38:49,170 INFO L226 Difference]: Without dead ends: 256310 [2021-06-05 11:38:49,171 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 19.4ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-06-05 11:39:06,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256310 states. [2021-06-05 11:39:10,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256310 to 256310. [2021-06-05 11:39:10,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256310 states, 256308 states have (on average 3.7725353871123803) internal successors, (966931), 256309 states have internal predecessors, (966931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:39:12,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256310 states to 256310 states and 966931 transitions. [2021-06-05 11:39:12,692 INFO L78 Accepts]: Start accepts. Automaton has 256310 states and 966931 transitions. Word has length 63 [2021-06-05 11:39:12,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:39:12,692 INFO L482 AbstractCegarLoop]: Abstraction has 256310 states and 966931 transitions. [2021-06-05 11:39:12,692 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:39:12,693 INFO L276 IsEmpty]: Start isEmpty. Operand 256310 states and 966931 transitions. [2021-06-05 11:39:12,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-06-05 11:39:12,699 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:39:12,699 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:39:12,908 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-06-05 11:39:12,909 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:39:12,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:39:12,909 INFO L82 PathProgramCache]: Analyzing trace with hash 624389236, now seen corresponding path program 1 times [2021-06-05 11:39:12,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:39:12,909 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962405927] [2021-06-05 11:39:12,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:39:12,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:39:12,969 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-06-05 11:39:12,969 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:39:12,969 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962405927] [2021-06-05 11:39:12,970 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962405927] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:39:12,970 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:39:12,970 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 11:39:12,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667138236] [2021-06-05 11:39:12,971 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 11:39:12,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:39:12,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 11:39:12,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 11:39:12,971 INFO L87 Difference]: Start difference. First operand 256310 states and 966931 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:39:15,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:39:15,574 INFO L93 Difference]: Finished difference Result 291518 states and 1089477 transitions. [2021-06-05 11:39:15,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 11:39:15,574 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-06-05 11:39:15,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:39:17,413 INFO L225 Difference]: With dead ends: 291518 [2021-06-05 11:39:17,414 INFO L226 Difference]: Without dead ends: 253430 [2021-06-05 11:39:17,415 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 16.3ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-05 11:39:35,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253430 states. [2021-06-05 11:39:39,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253430 to 253430. [2021-06-05 11:39:39,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253430 states, 253428 states have (on average 3.7712131256214785) internal successors, (955731), 253429 states have internal predecessors, (955731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:39:40,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253430 states to 253430 states and 955731 transitions. [2021-06-05 11:39:40,802 INFO L78 Accepts]: Start accepts. Automaton has 253430 states and 955731 transitions. Word has length 73 [2021-06-05 11:39:40,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:39:40,802 INFO L482 AbstractCegarLoop]: Abstraction has 253430 states and 955731 transitions. [2021-06-05 11:39:40,803 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:39:40,803 INFO L276 IsEmpty]: Start isEmpty. Operand 253430 states and 955731 transitions. [2021-06-05 11:39:40,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-06-05 11:39:40,821 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:39:40,822 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:39:40,822 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-05 11:39:40,822 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:39:40,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:39:40,822 INFO L82 PathProgramCache]: Analyzing trace with hash 630257298, now seen corresponding path program 1 times [2021-06-05 11:39:40,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:39:40,822 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466938742] [2021-06-05 11:39:40,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:39:40,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:39:40,857 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:39:40,857 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:39:40,858 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466938742] [2021-06-05 11:39:40,858 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466938742] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:39:40,858 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116569147] [2021-06-05 11:39:40,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:39:40,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:39:40,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 6 conjunts are in the unsatisfiable core [2021-06-05 11:39:40,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:39:41,014 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:39:41,015 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116569147] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:39:41,015 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 11:39:41,015 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-06-05 11:39:41,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812884364] [2021-06-05 11:39:41,015 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 11:39:41,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:39:41,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 11:39:41,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-06-05 11:39:41,016 INFO L87 Difference]: Start difference. First operand 253430 states and 955731 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:39:43,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:39:43,451 INFO L93 Difference]: Finished difference Result 246344 states and 935117 transitions. [2021-06-05 11:39:43,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 11:39:43,451 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-06-05 11:39:43,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:39:45,180 INFO L225 Difference]: With dead ends: 246344 [2021-06-05 11:39:45,180 INFO L226 Difference]: Without dead ends: 246344 [2021-06-05 11:39:45,181 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 35.0ms TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-06-05 11:40:02,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246344 states. [2021-06-05 11:40:06,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246344 to 246344. [2021-06-05 11:40:06,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246344 states, 246343 states have (on average 3.795995826956723) internal successors, (935117), 246343 states have internal predecessors, (935117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:40:08,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246344 states to 246344 states and 935117 transitions. [2021-06-05 11:40:08,053 INFO L78 Accepts]: Start accepts. Automaton has 246344 states and 935117 transitions. Word has length 81 [2021-06-05 11:40:08,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:40:08,053 INFO L482 AbstractCegarLoop]: Abstraction has 246344 states and 935117 transitions. [2021-06-05 11:40:08,053 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:40:08,053 INFO L276 IsEmpty]: Start isEmpty. Operand 246344 states and 935117 transitions. [2021-06-05 11:40:08,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-06-05 11:40:08,694 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:40:08,694 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:40:08,902 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-06-05 11:40:08,903 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:40:08,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:40:08,903 INFO L82 PathProgramCache]: Analyzing trace with hash -687582600, now seen corresponding path program 1 times [2021-06-05 11:40:08,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:40:08,903 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115843892] [2021-06-05 11:40:08,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:40:08,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:40:08,956 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:40:08,956 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:40:08,957 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115843892] [2021-06-05 11:40:08,957 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115843892] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:40:08,957 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183352522] [2021-06-05 11:40:08,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:40:09,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:40:09,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-05 11:40:09,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:40:09,154 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:40:09,155 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183352522] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:40:09,155 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 11:40:09,155 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2021-06-05 11:40:09,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201388408] [2021-06-05 11:40:09,155 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 11:40:09,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:40:09,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 11:40:09,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-06-05 11:40:09,156 INFO L87 Difference]: Start difference. First operand 246344 states and 935117 transitions. Second operand has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 11 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:40:09,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:40:09,545 INFO L93 Difference]: Finished difference Result 78566 states and 286223 transitions. [2021-06-05 11:40:09,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-05 11:40:09,545 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 11 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2021-06-05 11:40:09,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:40:09,545 INFO L225 Difference]: With dead ends: 78566 [2021-06-05 11:40:09,545 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 11:40:09,545 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 57.6ms TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2021-06-05 11:40:09,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 11:40:09,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 11:40:09,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:40:09,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 11:40:09,546 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 91 [2021-06-05 11:40:09,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:40:09,546 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 11:40:09,546 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 11 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:40:09,546 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 11:40:09,546 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 11:40:09,760 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:40:09,763 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-06-05 11:40:09,763 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 11:40:09,763 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 11:40:09,763 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 11:40:09,763 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 11:40:09,763 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 11:40:09,763 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 11:40:09,764 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 11:40:09,764 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 11:40:09,764 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-06-05 11:40:09,764 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 159 places, 181 transitions, 392 flow Received shutdown request... [2021-06-05 11:44:03,906 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-05 11:44:03,906 INFO L315 ceAbstractionStarter]: Result for error location InUseError was TIMEOUT (2/2) [2021-06-05 11:44:03,907 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 3 thread instances [2021-06-05 11:44:03,908 WARN L196 ceAbstractionStarter]: Timeout [2021-06-05 11:44:03,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 11:44:03 BasicIcfg [2021-06-05 11:44:03,909 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 11:44:03,909 INFO L168 Benchmark]: Toolchain (without parser) took 806694.39 ms. Allocated memory was 364.9 MB in the beginning and 15.7 GB in the end (delta: 15.4 GB). Free memory was 327.5 MB in the beginning and 7.7 GB in the end (delta: -7.4 GB). Peak memory consumption was 8.1 GB. Max. memory is 16.0 GB. [2021-06-05 11:44:03,909 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 364.9 MB. Free memory was 346.4 MB in the beginning and 346.3 MB in the end (delta: 76.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 11:44:03,909 INFO L168 Benchmark]: CACSL2BoogieTranslator took 443.24 ms. Allocated memory is still 364.9 MB. Free memory was 327.3 MB in the beginning and 303.4 MB in the end (delta: 23.8 MB). Peak memory consumption was 24.1 MB. Max. memory is 16.0 GB. [2021-06-05 11:44:03,909 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.99 ms. Allocated memory is still 364.9 MB. Free memory was 303.4 MB in the beginning and 301.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 11:44:03,909 INFO L168 Benchmark]: Boogie Preprocessor took 18.12 ms. Allocated memory is still 364.9 MB. Free memory was 301.3 MB in the beginning and 299.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 11:44:03,910 INFO L168 Benchmark]: RCFGBuilder took 354.66 ms. Allocated memory is still 364.9 MB. Free memory was 299.2 MB in the beginning and 268.8 MB in the end (delta: 30.4 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-06-05 11:44:03,910 INFO L168 Benchmark]: TraceAbstraction took 805844.79 ms. Allocated memory was 364.9 MB in the beginning and 15.7 GB in the end (delta: 15.4 GB). Free memory was 267.8 MB in the beginning and 7.7 GB in the end (delta: -7.4 GB). Peak memory consumption was 8.1 GB. Max. memory is 16.0 GB. [2021-06-05 11:44:03,910 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 364.9 MB. Free memory was 346.4 MB in the beginning and 346.3 MB in the end (delta: 76.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 443.24 ms. Allocated memory is still 364.9 MB. Free memory was 327.3 MB in the beginning and 303.4 MB in the end (delta: 23.8 MB). Peak memory consumption was 24.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 27.99 ms. Allocated memory is still 364.9 MB. Free memory was 303.4 MB in the beginning and 301.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 18.12 ms. Allocated memory is still 364.9 MB. Free memory was 301.3 MB in the beginning and 299.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 354.66 ms. Allocated memory is still 364.9 MB. Free memory was 299.2 MB in the beginning and 268.8 MB in the end (delta: 30.4 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 805844.79 ms. Allocated memory was 364.9 MB in the beginning and 15.7 GB in the end (delta: 15.4 GB). Free memory was 267.8 MB in the beginning and 7.7 GB in the end (delta: -7.4 GB). Peak memory consumption was 8.1 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 939]: 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 initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 159 places, 181 transitions, 392 flow. Already constructed 419515 states. Currently 23920 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 130 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1525.6ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 21.0ms, AutomataDifference: 100.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 56.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 389 SDtfs, 193 SDslu, 382 SDs, 0 SdLazy, 25 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 44.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1021occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 71.2ms AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 40.0ms SsaConstructionTime, 151.6ms SatisfiabilityAnalysisTime, 432.8ms InterpolantComputationTime, 350 NumberOfCodeBlocks, 350 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 344 ConstructedInterpolants, 0 QuantifiedInterpolants, 416 SizeOfPredicates, 2 NumberOfNonLiveVariables, 327 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 1/4 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 153 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5103.8ms, OverallIterations: 7, TraceHistogramMax: 2, EmptinessCheckTime: 67.2ms, AutomataDifference: 833.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1108.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 976 SDtfs, 855 SDslu, 1482 SDs, 0 SdLazy, 139 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 76.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 243 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 97.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=23078occurred in iteration=0, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1571.6ms AutomataMinimizationTime, 7 MinimizatonAttempts, 1848 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 48.8ms SsaConstructionTime, 106.0ms SatisfiabilityAnalysisTime, 527.5ms InterpolantComputationTime, 670 NumberOfCodeBlocks, 670 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 660 ConstructedInterpolants, 0 QuantifiedInterpolants, 1035 SizeOfPredicates, 6 NumberOfNonLiveVariables, 535 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 10 InterpolantComputations, 5 PerfectInterpolantSequences, 25/52 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 - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 176 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 563921.6ms, OverallIterations: 6, TraceHistogramMax: 3, EmptinessCheckTime: 1259.9ms, AutomataDifference: 24581.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 418841.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1103 SDtfs, 1892 SDslu, 2852 SDs, 0 SdLazy, 173 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 80.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 341 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 138.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=537565occurred in iteration=0, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 117554.2ms AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 48.6ms SsaConstructionTime, 91.4ms SatisfiabilityAnalysisTime, 487.6ms InterpolantComputationTime, 716 NumberOfCodeBlocks, 716 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 706 ConstructedInterpolants, 0 QuantifiedInterpolants, 1161 SizeOfPredicates, 12 NumberOfNonLiveVariables, 758 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 10 InterpolantComputations, 3 PerfectInterpolantSequences, 13/106 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 - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 1 thread instances CFG has 3 procedures, 130 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 80.5ms, OverallIterations: 1, TraceHistogramMax: 2, EmptinessCheckTime: 2.1ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1021occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 5.5ms SsaConstructionTime, 12.8ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 2 thread instances CFG has 4 procedures, 153 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 926.4ms, OverallIterations: 1, TraceHistogramMax: 3, EmptinessCheckTime: 29.3ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 872.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=23078occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.1ms SsaConstructionTime, 6.3ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 3 thread instances CFG has 5 procedures, 176 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 234142.9ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 234142.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown