/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_45-escape_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-770125f [2021-05-22 00:49:58,487 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-22 00:49:58,490 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-22 00:49:58,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-22 00:49:58,551 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-22 00:49:58,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-22 00:49:58,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-22 00:49:58,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-22 00:49:58,558 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-22 00:49:58,559 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-22 00:49:58,562 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-22 00:49:58,567 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-22 00:49:58,568 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-22 00:49:58,574 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-22 00:49:58,575 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-22 00:49:58,577 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-22 00:49:58,580 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-22 00:49:58,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-22 00:49:58,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-22 00:49:58,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-22 00:49:58,591 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 [2021-05-22 00:49:58,626 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-22 00:49:58,626 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-22 00:49:58,627 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-22 00:49:58,627 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-22 00:49:58,629 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-22 00:49:58,629 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-22 00:49:58,630 INFO L138 SettingsManager]: * Use SBE=true [2021-05-22 00:49:58,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-22 00:49:58,630 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-22 00:49:58,630 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-22 00:49:58,631 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-22 00:49:58,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-22 00:49:58,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-22 00:49:58,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-22 00:49:58,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-22 00:49:58,631 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-22 00:49:58,631 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-22 00:49:58,632 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-22 00:49:58,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-22 00:49:58,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-22 00:49:58,632 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-22 00:49:58,632 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-22 00:49:58,632 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-22 00:49:58,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-22 00:49:58,632 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-22 00:49:58,633 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-22 00:49:58,633 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-22 00:49:58,633 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-22 00:49:58,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-22 00:49:58,633 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-22 00:49:58,633 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-22 00:49:58,633 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-05-22 00:49:58,634 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-22 00:49:58,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-22 00:49:58,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-22 00:49:58,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-22 00:49:58,978 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-22 00:49:58,978 INFO L275 PluginConnector]: CDTParser initialized [2021-05-22 00:49:58,979 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.i [2021-05-22 00:49:59,037 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76315130c/2a321e26610c4f75b59389c44a66a284/FLAG491a645eb [2021-05-22 00:49:59,570 INFO L306 CDTParser]: Found 1 translation units. [2021-05-22 00:49:59,571 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.i [2021-05-22 00:49:59,579 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76315130c/2a321e26610c4f75b59389c44a66a284/FLAG491a645eb [2021-05-22 00:49:59,865 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76315130c/2a321e26610c4f75b59389c44a66a284 [2021-05-22 00:49:59,867 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-22 00:49:59,868 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-22 00:49:59,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-22 00:49:59,883 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-22 00:49:59,886 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-22 00:49:59,886 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.05 12:49:59" (1/1) ... [2021-05-22 00:49:59,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@196d5014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:49:59, skipping insertion in model container [2021-05-22 00:49:59,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.05 12:49:59" (1/1) ... [2021-05-22 00:49:59,896 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-22 00:49:59,924 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-22 00:50:00,179 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_45-escape_racing.i[29913,29926] [2021-05-22 00:50:00,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-22 00:50:00,215 INFO L203 MainTranslator]: Completed pre-run [2021-05-22 00:50:00,262 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_45-escape_racing.i[29913,29926] [2021-05-22 00:50:00,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-22 00:50:00,349 INFO L208 MainTranslator]: Completed translation [2021-05-22 00:50:00,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:50:00 WrapperNode [2021-05-22 00:50:00,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-22 00:50:00,350 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-22 00:50:00,351 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-22 00:50:00,351 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-22 00:50:00,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:50:00" (1/1) ... [2021-05-22 00:50:00,378 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:50:00" (1/1) ... [2021-05-22 00:50:00,393 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-22 00:50:00,394 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-22 00:50:00,394 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-22 00:50:00,394 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-22 00:50:00,401 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:50:00" (1/1) ... [2021-05-22 00:50:00,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:50:00" (1/1) ... [2021-05-22 00:50:00,404 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:50:00" (1/1) ... [2021-05-22 00:50:00,404 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:50:00" (1/1) ... [2021-05-22 00:50:00,409 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:50:00" (1/1) ... [2021-05-22 00:50:00,413 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:50:00" (1/1) ... [2021-05-22 00:50:00,414 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:50:00" (1/1) ... [2021-05-22 00:50:00,416 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-22 00:50:00,417 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-22 00:50:00,417 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-22 00:50:00,417 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-22 00:50:00,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:50:00" (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 [2021-05-22 00:50:00,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-22 00:50:00,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-22 00:50:00,511 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-05-22 00:50:00,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-22 00:50:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-05-22 00:50:00,513 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-05-22 00:50:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-22 00:50:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-22 00:50:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-22 00:50:00,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-22 00:50:00,521 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-22 00:50:00,842 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-22 00:50:00,842 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-05-22 00:50:00,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.05 12:50:00 BoogieIcfgContainer [2021-05-22 00:50:00,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-22 00:50:00,845 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-22 00:50:00,845 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-22 00:50:00,848 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-22 00:50:00,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.05 12:49:59" (1/3) ... [2021-05-22 00:50:00,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64e3b97b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.05 12:50:00, skipping insertion in model container [2021-05-22 00:50:00,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:50:00" (2/3) ... [2021-05-22 00:50:00,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64e3b97b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.05 12:50:00, skipping insertion in model container [2021-05-22 00:50:00,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.05 12:50:00" (3/3) ... [2021-05-22 00:50:00,850 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_45-escape_racing.i [2021-05-22 00:50:00,855 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-22 00:50:00,855 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-22 00:50:00,855 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-05-22 00:50:00,855 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-22 00:50:00,884 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,884 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,884 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,884 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,885 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,885 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,885 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,885 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,885 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,885 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,885 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,886 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,886 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,886 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,886 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,886 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,886 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,887 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,887 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,887 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,887 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,887 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,888 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,888 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,888 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,888 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,889 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,889 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,889 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,889 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,889 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,889 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,890 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,890 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,890 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,890 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,890 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,890 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,891 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,891 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,891 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,891 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,891 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,892 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,892 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,892 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,892 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,892 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,892 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,893 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,893 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,893 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,893 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,893 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,893 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,894 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,894 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,894 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,894 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,894 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,894 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,895 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,895 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,895 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,895 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,895 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,895 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,896 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,896 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,896 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,896 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,896 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,898 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,898 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,899 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,899 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,899 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,899 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,899 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,899 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,899 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,900 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,900 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,900 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,900 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:00,906 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-05-22 00:50:00,924 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-22 00:50:00,941 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-22 00:50:00,941 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-22 00:50:00,941 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-22 00:50:00,941 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-22 00:50:00,941 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-22 00:50:00,941 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-22 00:50:00,942 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-22 00:50:00,942 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-22 00:50:00,951 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 94 places, 99 transitions, 206 flow [2021-05-22 00:50:00,983 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 603 states, 601 states have (on average 2.194675540765391) internal successors, (1319), 602 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:50:00,989 INFO L276 IsEmpty]: Start isEmpty. Operand has 603 states, 601 states have (on average 2.194675540765391) internal successors, (1319), 602 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:50:00,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-05-22 00:50:00,999 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:50:01,000 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] [2021-05-22 00:50:01,001 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-22 00:50:01,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:50:01,005 INFO L82 PathProgramCache]: Analyzing trace with hash 719747698, now seen corresponding path program 1 times [2021-05-22 00:50:01,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:50:01,013 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397289379] [2021-05-22 00:50:01,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:50:01,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:50:01,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:50:01,334 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 00:50:01,334 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397289379] [2021-05-22 00:50:01,335 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397289379] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-22 00:50:01,335 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-22 00:50:01,335 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-05-22 00:50:01,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337306655] [2021-05-22 00:50:01,339 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-22 00:50:01,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 00:50:01,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-22 00:50:01,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-05-22 00:50:01,358 INFO L87 Difference]: Start difference. First operand has 603 states, 601 states have (on average 2.194675540765391) internal successors, (1319), 602 states have internal predecessors, (1319), 0 states have call successors, (0), 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 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 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) [2021-05-22 00:50:01,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 00:50:01,754 INFO L93 Difference]: Finished difference Result 744 states and 1361 transitions. [2021-05-22 00:50:01,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-05-22 00:50:01,756 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 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 [2021-05-22 00:50:01,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 00:50:01,772 INFO L225 Difference]: With dead ends: 744 [2021-05-22 00:50:01,773 INFO L226 Difference]: Without dead ends: 338 [2021-05-22 00:50:01,775 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 233.0ms TimeCoverageRelationStatistics Valid=150, Invalid=356, Unknown=0, NotChecked=0, Total=506 [2021-05-22 00:50:01,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2021-05-22 00:50:01,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2021-05-22 00:50:01,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 337 states have (on average 1.7833827893175074) internal successors, (601), 337 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:50:01,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 601 transitions. [2021-05-22 00:50:01,830 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 601 transitions. Word has length 46 [2021-05-22 00:50:01,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 00:50:01,831 INFO L482 AbstractCegarLoop]: Abstraction has 338 states and 601 transitions. [2021-05-22 00:50:01,831 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 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) [2021-05-22 00:50:01,831 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 601 transitions. [2021-05-22 00:50:01,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-05-22 00:50:01,833 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:50:01,833 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] [2021-05-22 00:50:01,833 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-22 00:50:01,834 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-22 00:50:01,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:50:01,834 INFO L82 PathProgramCache]: Analyzing trace with hash 1579514342, now seen corresponding path program 1 times [2021-05-22 00:50:01,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:50:01,835 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294238228] [2021-05-22 00:50:01,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:50:01,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:50:01,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:50:01,892 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 00:50:01,893 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294238228] [2021-05-22 00:50:01,893 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294238228] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-22 00:50:01,893 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-22 00:50:01,893 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-22 00:50:01,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102625999] [2021-05-22 00:50:01,894 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-22 00:50:01,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 00:50:01,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-22 00:50:01,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-22 00:50:01,896 INFO L87 Difference]: Start difference. First operand 338 states and 601 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:50:01,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 00:50:01,938 INFO L93 Difference]: Finished difference Result 274 states and 452 transitions. [2021-05-22 00:50:01,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-22 00:50:01,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-05-22 00:50:01,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 00:50:01,940 INFO L225 Difference]: With dead ends: 274 [2021-05-22 00:50:01,940 INFO L226 Difference]: Without dead ends: 262 [2021-05-22 00:50:01,941 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-22 00:50:01,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2021-05-22 00:50:01,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 238. [2021-05-22 00:50:01,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 236 states have (on average 1.6652542372881356) internal successors, (393), 237 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:50:01,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 393 transitions. [2021-05-22 00:50:01,954 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 393 transitions. Word has length 56 [2021-05-22 00:50:01,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 00:50:01,954 INFO L482 AbstractCegarLoop]: Abstraction has 238 states and 393 transitions. [2021-05-22 00:50:01,954 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:50:01,954 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 393 transitions. [2021-05-22 00:50:01,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-05-22 00:50:01,956 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:50:01,956 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] [2021-05-22 00:50:01,957 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-22 00:50:01,957 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-22 00:50:01,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:50:01,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1798701914, now seen corresponding path program 1 times [2021-05-22 00:50:01,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:50:01,958 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413052551] [2021-05-22 00:50:01,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:50:01,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-22 00:50:01,989 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-22 00:50:02,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-22 00:50:02,013 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-22 00:50:02,037 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-05-22 00:50:02,038 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-05-22 00:50:02,038 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-22 00:50:02,038 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was UNSAFE (1/2) [2021-05-22 00:50:02,041 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-22 00:50:02,042 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-22 00:50:02,042 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-22 00:50:02,042 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-22 00:50:02,042 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-22 00:50:02,042 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-22 00:50:02,043 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-22 00:50:02,043 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-22 00:50:02,043 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-05-22 00:50:02,045 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 94 places, 99 transitions, 206 flow [2021-05-22 00:50:02,054 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 603 states, 601 states have (on average 2.194675540765391) internal successors, (1319), 602 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:50:02,056 INFO L276 IsEmpty]: Start isEmpty. Operand has 603 states, 601 states have (on average 2.194675540765391) internal successors, (1319), 602 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:50:02,059 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-22 00:50:02,059 INFO L315 ceAbstractionStarter]: Result for error location InUseError was SAFE (2/2) [2021-05-22 00:50:02,059 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-05-22 00:50:02,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.05 12:50:02 BasicIcfg [2021-05-22 00:50:02,106 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-22 00:50:02,107 INFO L168 Benchmark]: Toolchain (without parser) took 2238.17 ms. Allocated memory is still 371.2 MB. Free memory was 333.7 MB in the beginning and 172.4 MB in the end (delta: 161.2 MB). Peak memory consumption was 158.2 MB. Max. memory is 16.0 GB. [2021-05-22 00:50:02,107 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 371.2 MB. Free memory is still 351.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-05-22 00:50:02,108 INFO L168 Benchmark]: CACSL2BoogieTranslator took 467.80 ms. Allocated memory is still 371.2 MB. Free memory was 333.5 MB in the beginning and 333.9 MB in the end (delta: -378.6 kB). Peak memory consumption was 5.0 MB. Max. memory is 16.0 GB. [2021-05-22 00:50:02,108 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.92 ms. Allocated memory is still 371.2 MB. Free memory was 333.9 MB in the beginning and 331.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-22 00:50:02,108 INFO L168 Benchmark]: Boogie Preprocessor took 22.56 ms. Allocated memory is still 371.2 MB. Free memory was 331.8 MB in the beginning and 330.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-22 00:50:02,109 INFO L168 Benchmark]: RCFGBuilder took 426.83 ms. Allocated memory is still 371.2 MB. Free memory was 330.8 MB in the beginning and 302.5 MB in the end (delta: 28.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2021-05-22 00:50:02,109 INFO L168 Benchmark]: TraceAbstraction took 1260.83 ms. Allocated memory is still 371.2 MB. Free memory was 301.4 MB in the beginning and 172.4 MB in the end (delta: 129.0 MB). Peak memory consumption was 130.0 MB. Max. memory is 16.0 GB. [2021-05-22 00:50:02,112 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 371.2 MB. Free memory is still 351.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 467.80 ms. Allocated memory is still 371.2 MB. Free memory was 333.5 MB in the beginning and 333.9 MB in the end (delta: -378.6 kB). Peak memory consumption was 5.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 42.92 ms. Allocated memory is still 371.2 MB. Free memory was 333.9 MB in the beginning and 331.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 22.56 ms. Allocated memory is still 371.2 MB. Free memory was 331.8 MB in the beginning and 330.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 426.83 ms. Allocated memory is still 371.2 MB. Free memory was 330.8 MB in the beginning and 302.5 MB in the end (delta: 28.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1260.83 ms. Allocated memory is still 371.2 MB. Free memory was 301.4 MB in the beginning and 172.4 MB in the end (delta: 129.0 MB). Peak memory consumption was 130.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 684]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L689] 0 pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [__global_lock={7:0}] [L690] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [__global_lock={7:0}, mutex1={9:0}] [L691] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [__global_lock={7:0}, mutex1={9:0}, mutex2={10:0}] [L700] 0 pthread_t id; VAL [__global_lock={7:0}, mutex1={9:0}, mutex2={10:0}] [L701] 0 int i = 0; VAL [__global_lock={7:0}, mutex1={9:0}, mutex2={10:0}] [L702] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, (void *) &i) VAL [__global_lock={7:0}, arg={3:0}, mutex1={9:0}, mutex2={10:0}] [L693] 1 int *p = (int *) arg; VAL [__global_lock={7:0}, arg={3:0}, arg={3:0}, mutex1={9:0}, mutex2={10:0}, p={3:0}] [L695] EXPR 1 \read(*p) VAL [\read(*p)=0, __global_lock={7:0}, arg={3:0}, arg={3:0}, mutex1={9:0}, mutex2={10:0}, p={3:0}] [L695] 1 (*p)++ VAL [(*p)++=0, \read(*p)=0, __global_lock={7:0}, arg={3:0}, arg={3:0}, mutex1={9:0}, mutex2={10:0}, p={3:0}] [L704] 0 \read(i) VAL [__global_lock={7:0}, arg={3:0}, arg={3:0}, mutex1={9:0}, mutex2={10:0}, p={3:0}] [L684] COND TRUE 0 !(cond) VAL [__global_lock={7:0}, arg={3:0}, arg={3:0}, mutex1={9:0}, mutex2={10:0}, p={3:0}] [L684] 0 reach_error() VAL [__global_lock={7:0}, arg={3:0}, arg={3:0}, mutex1={9:0}, mutex2={10:0}, p={3:0}] - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 120 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1099.9ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 19.4ms, AutomataDifference: 479.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 41.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 234 SDtfs, 409 SDslu, 612 SDs, 0 SdLazy, 150 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 135.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 235.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=603occurred in iteration=0, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 56.3ms AutomataMinimizationTime, 2 MinimizatonAttempts, 24 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 13.7ms SsaConstructionTime, 84.5ms SatisfiabilityAnalysisTime, 238.3ms InterpolantComputationTime, 161 NumberOfCodeBlocks, 161 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 211 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 1 thread instances CFG has 3 procedures, 120 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 16.9ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 3.9ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=603occurred 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: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...