/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/lazy01.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-770125f [2021-05-21 15:36:53,489 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-21 15:36:53,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-21 15:36:53,530 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-21 15:36:53,548 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-21 15:36:53,550 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-21 15:36:53,551 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-21 15:36:53,552 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-21 15:36:53,555 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-21 15:36:53,555 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-21 15:36:53,557 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-21 15:36:53,562 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-21 15:36:53,563 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-21 15:36:53,564 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-21 15:36:53,565 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-21 15:36:53,567 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-21 15:36:53,572 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-21 15:36:53,579 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-21 15:36:53,580 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-21 15:36:53,580 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-21 15:36:53,584 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-05-21 15:36:53,619 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-21 15:36:53,619 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-21 15:36:53,619 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-21 15:36:53,619 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-21 15:36:53,622 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-21 15:36:53,622 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-21 15:36:53,622 INFO L138 SettingsManager]: * Use SBE=true [2021-05-21 15:36:53,622 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-21 15:36:53,622 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-21 15:36:53,623 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-21 15:36:53,623 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-21 15:36:53,623 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-21 15:36:53,624 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-21 15:36:53,624 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-21 15:36:53,624 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-21 15:36:53,624 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-21 15:36:53,624 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-21 15:36:53,624 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-21 15:36:53,624 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-21 15:36:53,624 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-21 15:36:53,625 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-21 15:36:53,625 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-21 15:36:53,625 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-21 15:36:53,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-21 15:36:53,625 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-21 15:36:53,625 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-21 15:36:53,625 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-21 15:36:53,625 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-21 15:36:53,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-21 15:36:53,626 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-21 15:36:53,626 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-21 15:36:53,626 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-21 15:36:53,918 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-21 15:36:53,935 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-21 15:36:53,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-21 15:36:53,938 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-21 15:36:53,940 INFO L275 PluginConnector]: CDTParser initialized [2021-05-21 15:36:53,941 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/lazy01.i [2021-05-21 15:36:54,000 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4870218d6/b34389d1b74e430bad6d3cb1ea22d2ab/FLAG9751ed98e [2021-05-21 15:36:54,483 INFO L306 CDTParser]: Found 1 translation units. [2021-05-21 15:36:54,483 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/lazy01.i [2021-05-21 15:36:54,500 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4870218d6/b34389d1b74e430bad6d3cb1ea22d2ab/FLAG9751ed98e [2021-05-21 15:36:54,972 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4870218d6/b34389d1b74e430bad6d3cb1ea22d2ab [2021-05-21 15:36:54,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-21 15:36:54,976 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-21 15:36:54,977 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-21 15:36:54,977 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-21 15:36:54,980 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-21 15:36:54,981 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 03:36:54" (1/1) ... [2021-05-21 15:36:54,982 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@531d7a04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 03:36:54, skipping insertion in model container [2021-05-21 15:36:54,982 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 03:36:54" (1/1) ... [2021-05-21 15:36:54,987 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-21 15:36:55,013 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-21 15:36:55,297 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/lazy01.i[31042,31055] [2021-05-21 15:36:55,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 15:36:55,315 INFO L203 MainTranslator]: Completed pre-run [2021-05-21 15:36:55,356 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/lazy01.i[31042,31055] [2021-05-21 15:36:55,359 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 15:36:55,419 INFO L208 MainTranslator]: Completed translation [2021-05-21 15:36:55,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 03:36:55 WrapperNode [2021-05-21 15:36:55,420 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-21 15:36:55,421 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-21 15:36:55,421 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-21 15:36:55,421 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-21 15:36:55,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 03:36:55" (1/1) ... [2021-05-21 15:36:55,445 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 03:36:55" (1/1) ... [2021-05-21 15:36:55,460 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-21 15:36:55,460 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-21 15:36:55,460 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-21 15:36:55,461 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-21 15:36:55,465 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 03:36:55" (1/1) ... [2021-05-21 15:36:55,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 03:36:55" (1/1) ... [2021-05-21 15:36:55,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 03:36:55" (1/1) ... [2021-05-21 15:36:55,468 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 03:36:55" (1/1) ... [2021-05-21 15:36:55,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 03:36:55" (1/1) ... [2021-05-21 15:36:55,473 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 03:36:55" (1/1) ... [2021-05-21 15:36:55,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 03:36:55" (1/1) ... [2021-05-21 15:36:55,476 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-21 15:36:55,477 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-21 15:36:55,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-21 15:36:55,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-21 15:36:55,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 03:36:55" (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 [2021-05-21 15:36:55,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-21 15:36:55,534 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-05-21 15:36:55,534 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-05-21 15:36:55,535 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-05-21 15:36:55,535 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-05-21 15:36:55,537 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-05-21 15:36:55,537 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-05-21 15:36:55,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-21 15:36:55,537 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-05-21 15:36:55,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-21 15:36:55,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-21 15:36:55,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-21 15:36:55,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-21 15:36:55,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-21 15:36:55,539 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-21 15:36:55,971 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-21 15:36:55,971 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-05-21 15:36:55,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 03:36:55 BoogieIcfgContainer [2021-05-21 15:36:55,973 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-21 15:36:55,974 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-21 15:36:55,974 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-21 15:36:55,976 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-21 15:36:55,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.05 03:36:54" (1/3) ... [2021-05-21 15:36:55,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@502ebb5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 03:36:55, skipping insertion in model container [2021-05-21 15:36:55,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 03:36:55" (2/3) ... [2021-05-21 15:36:55,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@502ebb5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 03:36:55, skipping insertion in model container [2021-05-21 15:36:55,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 03:36:55" (3/3) ... [2021-05-21 15:36:55,979 INFO L111 eAbstractionObserver]: Analyzing ICFG lazy01.i [2021-05-21 15:36:55,986 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-21 15:36:55,986 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-21 15:36:55,986 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-05-21 15:36:55,987 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-21 15:36:56,015 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,015 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,015 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,015 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,016 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,016 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,016 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,016 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,016 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,016 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,017 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,017 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,017 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,017 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,017 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,017 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,018 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,018 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,018 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,018 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,018 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,019 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,020 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,020 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,021 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,021 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,024 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,024 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,024 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,025 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,026 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,027 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,027 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,027 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,028 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,028 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,029 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,029 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,029 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,030 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,030 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,031 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,031 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,032 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,033 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,033 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,033 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,036 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,036 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,036 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,037 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,038 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,038 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,038 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,040 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,040 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,040 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,041 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,041 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,045 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,045 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,045 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,045 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,045 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,046 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,047 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,047 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,047 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,047 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,048 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:36:56,070 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2021-05-21 15:36:56,086 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-05-21 15:36:56,101 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 15:36:56,101 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 15:36:56,101 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 15:36:56,101 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 15:36:56,101 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 15:36:56,101 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 15:36:56,101 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 15:36:56,102 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-21 15:36:56,110 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 95 places, 92 transitions, 226 flow [2021-05-21 15:36:56,309 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5016 states, 5014 states have (on average 3.2848025528520144) internal successors, (16470), 5015 states have internal predecessors, (16470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:36:56,327 INFO L276 IsEmpty]: Start isEmpty. Operand has 5016 states, 5014 states have (on average 3.2848025528520144) internal successors, (16470), 5015 states have internal predecessors, (16470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:36:56,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-05-21 15:36:56,342 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 15:36:56,342 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] [2021-05-21 15:36:56,343 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 15:36:56,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 15:36:56,347 INFO L82 PathProgramCache]: Analyzing trace with hash 842405542, now seen corresponding path program 1 times [2021-05-21 15:36:56,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 15:36:56,353 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481076780] [2021-05-21 15:36:56,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 15:36:56,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 15:36:56,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 15:36:56,559 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 15:36:56,559 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481076780] [2021-05-21 15:36:56,559 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481076780] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 15:36:56,560 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 15:36:56,560 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-21 15:36:56,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639301135] [2021-05-21 15:36:56,563 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-21 15:36:56,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 15:36:56,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-21 15:36:56,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-21 15:36:56,606 INFO L87 Difference]: Start difference. First operand has 5016 states, 5014 states have (on average 3.2848025528520144) internal successors, (16470), 5015 states have internal predecessors, (16470), 0 states have call successors, (0), 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 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:36:56,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 15:36:56,720 INFO L93 Difference]: Finished difference Result 4479 states and 14202 transitions. [2021-05-21 15:36:56,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-21 15:36:56,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-05-21 15:36:56,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 15:36:56,757 INFO L225 Difference]: With dead ends: 4479 [2021-05-21 15:36:56,757 INFO L226 Difference]: Without dead ends: 2666 [2021-05-21 15:36:56,758 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-21 15:36:56,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2666 states. [2021-05-21 15:36:56,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2666 to 2666. [2021-05-21 15:36:56,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2666 states, 2665 states have (on average 3.0915572232645405) internal successors, (8239), 2665 states have internal predecessors, (8239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:36:56,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2666 states to 2666 states and 8239 transitions. [2021-05-21 15:36:56,936 INFO L78 Accepts]: Start accepts. Automaton has 2666 states and 8239 transitions. Word has length 41 [2021-05-21 15:36:56,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 15:36:56,938 INFO L482 AbstractCegarLoop]: Abstraction has 2666 states and 8239 transitions. [2021-05-21 15:36:56,939 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:36:56,939 INFO L276 IsEmpty]: Start isEmpty. Operand 2666 states and 8239 transitions. [2021-05-21 15:36:56,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-05-21 15:36:56,945 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 15:36:56,946 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 15:36:56,946 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-21 15:36:56,946 INFO L430 AbstractCegarLoop]: === Iteration 2 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 15:36:56,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 15:36:56,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1630042440, now seen corresponding path program 1 times [2021-05-21 15:36:56,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 15:36:56,951 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249378812] [2021-05-21 15:36:56,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 15:36:56,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 15:36:57,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 15:36:57,055 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 15:36:57,055 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249378812] [2021-05-21 15:36:57,055 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249378812] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 15:36:57,055 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 15:36:57,055 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-21 15:36:57,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081042286] [2021-05-21 15:36:57,057 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-21 15:36:57,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 15:36:57,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-21 15:36:57,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-21 15:36:57,059 INFO L87 Difference]: Start difference. First operand 2666 states and 8239 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:36:57,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 15:36:57,091 INFO L93 Difference]: Finished difference Result 1608 states and 4335 transitions. [2021-05-21 15:36:57,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-21 15:36:57,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-05-21 15:36:57,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 15:36:57,098 INFO L225 Difference]: With dead ends: 1608 [2021-05-21 15:36:57,098 INFO L226 Difference]: Without dead ends: 1576 [2021-05-21 15:36:57,099 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-21 15:36:57,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2021-05-21 15:36:57,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1576. [2021-05-21 15:36:57,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1573 states have (on average 2.6999364272091544) internal successors, (4247), 1575 states have internal predecessors, (4247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:36:57,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 4247 transitions. [2021-05-21 15:36:57,193 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 4247 transitions. Word has length 45 [2021-05-21 15:36:57,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 15:36:57,193 INFO L482 AbstractCegarLoop]: Abstraction has 1576 states and 4247 transitions. [2021-05-21 15:36:57,193 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:36:57,193 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 4247 transitions. [2021-05-21 15:36:57,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-05-21 15:36:57,196 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 15:36:57,196 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 15:36:57,196 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-21 15:36:57,196 INFO L430 AbstractCegarLoop]: === Iteration 3 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 15:36:57,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 15:36:57,197 INFO L82 PathProgramCache]: Analyzing trace with hash -1095133506, now seen corresponding path program 1 times [2021-05-21 15:36:57,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 15:36:57,197 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228578283] [2021-05-21 15:36:57,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 15:36:57,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 15:36:57,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 15:36:57,253 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 15:36:57,253 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228578283] [2021-05-21 15:36:57,253 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228578283] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 15:36:57,253 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 15:36:57,253 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-21 15:36:57,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828864624] [2021-05-21 15:36:57,254 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-21 15:36:57,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 15:36:57,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-21 15:36:57,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-05-21 15:36:57,255 INFO L87 Difference]: Start difference. First operand 1576 states and 4247 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:36:57,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 15:36:57,279 INFO L93 Difference]: Finished difference Result 1516 states and 4077 transitions. [2021-05-21 15:36:57,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-21 15:36:57,280 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-05-21 15:36:57,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 15:36:57,287 INFO L225 Difference]: With dead ends: 1516 [2021-05-21 15:36:57,287 INFO L226 Difference]: Without dead ends: 1456 [2021-05-21 15:36:57,287 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-05-21 15:36:57,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2021-05-21 15:36:57,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 1456. [2021-05-21 15:36:57,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1454 states have (on average 2.68707015130674) internal successors, (3907), 1455 states have internal predecessors, (3907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:36:57,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 3907 transitions. [2021-05-21 15:36:57,381 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 3907 transitions. Word has length 46 [2021-05-21 15:36:57,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 15:36:57,382 INFO L482 AbstractCegarLoop]: Abstraction has 1456 states and 3907 transitions. [2021-05-21 15:36:57,382 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:36:57,382 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 3907 transitions. [2021-05-21 15:36:57,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-05-21 15:36:57,385 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 15:36:57,385 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 15:36:57,385 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-21 15:36:57,385 INFO L430 AbstractCegarLoop]: === Iteration 4 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 15:36:57,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 15:36:57,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1850887150, now seen corresponding path program 1 times [2021-05-21 15:36:57,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 15:36:57,386 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138262793] [2021-05-21 15:36:57,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 15:36:57,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 15:36:57,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 15:36:57,444 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 15:36:57,444 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138262793] [2021-05-21 15:36:57,444 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138262793] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 15:36:57,445 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 15:36:57,445 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-21 15:36:57,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868592566] [2021-05-21 15:36:57,445 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-21 15:36:57,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 15:36:57,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-21 15:36:57,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-05-21 15:36:57,446 INFO L87 Difference]: Start difference. First operand 1456 states and 3907 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:36:57,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 15:36:57,492 INFO L93 Difference]: Finished difference Result 1396 states and 3737 transitions. [2021-05-21 15:36:57,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-21 15:36:57,494 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-05-21 15:36:57,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 15:36:57,503 INFO L225 Difference]: With dead ends: 1396 [2021-05-21 15:36:57,503 INFO L226 Difference]: Without dead ends: 1336 [2021-05-21 15:36:57,504 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 18.0ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-05-21 15:36:57,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1336 states. [2021-05-21 15:36:57,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1336 to 1336. [2021-05-21 15:36:57,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 1335 states have (on average 2.6719101123595506) internal successors, (3567), 1335 states have internal predecessors, (3567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:36:57,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 3567 transitions. [2021-05-21 15:36:57,541 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 3567 transitions. Word has length 48 [2021-05-21 15:36:57,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 15:36:57,542 INFO L482 AbstractCegarLoop]: Abstraction has 1336 states and 3567 transitions. [2021-05-21 15:36:57,542 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:36:57,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 3567 transitions. [2021-05-21 15:36:57,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-05-21 15:36:57,547 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 15:36:57,547 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] [2021-05-21 15:36:57,547 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-21 15:36:57,547 INFO L430 AbstractCegarLoop]: === Iteration 5 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 15:36:57,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 15:36:57,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1027836614, now seen corresponding path program 1 times [2021-05-21 15:36:57,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 15:36:57,550 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454299273] [2021-05-21 15:36:57,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 15:36:57,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-21 15:36:57,604 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-21 15:36:57,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-21 15:36:57,621 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-21 15:36:57,645 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-05-21 15:36:57,645 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-05-21 15:36:57,645 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-21 15:36:57,647 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-05-21 15:36:57,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.05 03:36:57 BasicIcfg [2021-05-21 15:36:57,706 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-21 15:36:57,707 INFO L168 Benchmark]: Toolchain (without parser) took 2731.34 ms. Allocated memory is still 343.9 MB. Free memory was 306.2 MB in the beginning and 209.8 MB in the end (delta: 96.4 MB). Peak memory consumption was 97.5 MB. Max. memory is 16.0 GB. [2021-05-21 15:36:57,708 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 343.9 MB. Free memory is still 324.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 15:36:57,708 INFO L168 Benchmark]: CACSL2BoogieTranslator took 442.68 ms. Allocated memory is still 343.9 MB. Free memory was 306.0 MB in the beginning and 306.2 MB in the end (delta: -274.6 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. [2021-05-21 15:36:57,709 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.13 ms. Allocated memory is still 343.9 MB. Free memory was 306.2 MB in the beginning and 305.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 15:36:57,709 INFO L168 Benchmark]: Boogie Preprocessor took 16.02 ms. Allocated memory is still 343.9 MB. Free memory was 305.2 MB in the beginning and 303.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 15:36:57,709 INFO L168 Benchmark]: RCFGBuilder took 496.02 ms. Allocated memory is still 343.9 MB. Free memory was 303.1 MB in the beginning and 276.9 MB in the end (delta: 26.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-05-21 15:36:57,710 INFO L168 Benchmark]: TraceAbstraction took 1732.30 ms. Allocated memory is still 343.9 MB. Free memory was 276.9 MB in the beginning and 209.8 MB in the end (delta: 67.1 MB). Peak memory consumption was 69.2 MB. Max. memory is 16.0 GB. [2021-05-21 15:36:57,712 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 343.9 MB. Free memory is still 324.2 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 442.68 ms. Allocated memory is still 343.9 MB. Free memory was 306.0 MB in the beginning and 306.2 MB in the end (delta: -274.6 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 39.13 ms. Allocated memory is still 343.9 MB. Free memory was 306.2 MB in the beginning and 305.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 16.02 ms. Allocated memory is still 343.9 MB. Free memory was 305.2 MB in the beginning and 303.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 496.02 ms. Allocated memory is still 343.9 MB. Free memory was 303.1 MB in the beginning and 276.9 MB in the end (delta: 26.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1732.30 ms. Allocated memory is still 343.9 MB. Free memory was 276.9 MB in the beginning and 209.8 MB in the end (delta: 67.1 MB). Peak memory consumption was 69.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 722]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L702] 0 pthread_mutex_t mutex; VAL [mutex={7:0}] [L703] 0 int data = 0; VAL [data=0, mutex={7:0}] [L731] 0 pthread_t t1, t2, t3; VAL [data=0, mutex={7:0}] [L732] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data=0, mutex={7:0}] [L733] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, data=0, mutex={7:0}, pthread_mutex_lock(&mutex)=0] [L734] FCALL, FORK 0 pthread_create(&t3, 0, thread3, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=0, mutex={7:0}, pthread_mutex_lock(&mutex)=0] [L707] 1 data++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=1, mutex={7:0}] [L714] 2 data+=2 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={7:0}] [L721] COND TRUE 3 data >= 3 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={7:0}] [L722] 3 reach_error() VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={7:0}] - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 118 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1546.8ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 47.3ms, AutomataDifference: 326.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 207.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 332 SDtfs, 211 SDslu, 395 SDs, 0 SdLazy, 44 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 36.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 42.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5016occurred in iteration=0, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 392.6ms AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 20.3ms SsaConstructionTime, 138.5ms SatisfiabilityAnalysisTime, 227.7ms InterpolantComputationTime, 233 NumberOfCodeBlocks, 233 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 176 ConstructedInterpolants, 0 QuantifiedInterpolants, 386 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...