/usr/bin/java -Xmx8000000000 -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 --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false -i ../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_09-idxsense_rc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 15:08:08,511 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 15:08:08,513 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 15:08:08,564 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-15 15:08:08,570 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-15 15:08:08,571 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-15 15:08:08,572 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-15 15:08:08,573 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-15 15:08:08,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-15 15:08:08,574 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-15 15:08:08,580 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-15 15:08:08,586 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-15 15:08:08,590 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-15 15:08:08,593 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-15 15:08:08,594 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-15 15:08:08,594 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-15 15:08:08,596 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-15 15:08:08,601 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 15:08:08,601 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 15:08:08,602 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 15:08:08,607 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 [2022-03-15 15:08:08,622 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 15:08:08,623 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 15:08:08,623 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-15 15:08:08,623 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-15 15:08:08,624 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 15:08:08,624 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 15:08:08,624 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 15:08:08,625 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 15:08:08,625 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 15:08:08,625 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 15:08:08,625 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 15:08:08,626 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 15:08:08,626 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 15:08:08,626 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 15:08:08,626 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 15:08:08,626 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 15:08:08,626 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 15:08:08,626 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 15:08:08,626 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 15:08:08,626 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 15:08:08,626 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 15:08:08,627 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 15:08:08,627 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 15:08:08,627 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 15:08:08,627 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 15:08:08,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 15:08:08,627 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 15:08:08,627 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-15 15:08:08,627 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 15:08:08,627 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 15:08:08,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 15:08:08,628 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-15 15:08:08,628 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 15:08:08,628 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2022-03-15 15:08:08,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 15:08:08,824 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 15:08:08,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 15:08:08,827 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 15:08:08,828 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 15:08:08,829 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_09-idxsense_rc.i [2022-03-15 15:08:08,869 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/768ebe48f/24e73887a21040028bcb6a7a11750316/FLAGaab35d45b [2022-03-15 15:08:09,185 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 15:08:09,185 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/05-lval_ls_09-idxsense_rc.i [2022-03-15 15:08:09,214 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/768ebe48f/24e73887a21040028bcb6a7a11750316/FLAGaab35d45b [2022-03-15 15:08:09,603 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/768ebe48f/24e73887a21040028bcb6a7a11750316 [2022-03-15 15:08:09,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 15:08:09,606 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 15:08:09,607 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 15:08:09,607 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 15:08:09,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 15:08:09,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 03:08:09" (1/1) ... [2022-03-15 15:08:09,614 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@213b6ae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:08:09, skipping insertion in model container [2022-03-15 15:08:09,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 03:08:09" (1/1) ... [2022-03-15 15:08:09,636 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 15:08:09,669 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 15:08:09,904 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 15:08:09,923 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 15:08:09,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 15:08:10,017 INFO L208 MainTranslator]: Completed translation [2022-03-15 15:08:10,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:08:10 WrapperNode [2022-03-15 15:08:10,018 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 15:08:10,019 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 15:08:10,020 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 15:08:10,020 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 15:08:10,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:08:10" (1/1) ... [2022-03-15 15:08:10,049 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:08:10" (1/1) ... [2022-03-15 15:08:10,071 INFO L137 Inliner]: procedures = 161, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2022-03-15 15:08:10,072 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 15:08:10,072 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 15:08:10,073 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 15:08:10,073 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 15:08:10,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:08:10" (1/1) ... [2022-03-15 15:08:10,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:08:10" (1/1) ... [2022-03-15 15:08:10,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:08:10" (1/1) ... [2022-03-15 15:08:10,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:08:10" (1/1) ... [2022-03-15 15:08:10,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:08:10" (1/1) ... [2022-03-15 15:08:10,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:08:10" (1/1) ... [2022-03-15 15:08:10,105 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:08:10" (1/1) ... [2022-03-15 15:08:10,106 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 15:08:10,107 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 15:08:10,107 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 15:08:10,107 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 15:08:10,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:08:10" (1/1) ... [2022-03-15 15:08:10,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 15:08:10,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 15:08:10,134 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-15 15:08:10,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-15 15:08:10,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 15:08:10,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 15:08:10,169 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-03-15 15:08:10,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 15:08:10,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 15:08:10,170 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-03-15 15:08:10,170 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-03-15 15:08:10,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 15:08:10,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 15:08:10,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 15:08:10,171 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 15:08:10,289 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 15:08:10,291 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 15:08:10,418 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 15:08:10,423 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 15:08:10,424 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-15 15:08:10,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 03:08:10 BoogieIcfgContainer [2022-03-15 15:08:10,425 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 15:08:10,426 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 15:08:10,426 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 15:08:10,428 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 15:08:10,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 03:08:09" (1/3) ... [2022-03-15 15:08:10,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@114be0f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 03:08:10, skipping insertion in model container [2022-03-15 15:08:10,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:08:10" (2/3) ... [2022-03-15 15:08:10,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@114be0f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 03:08:10, skipping insertion in model container [2022-03-15 15:08:10,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 03:08:10" (3/3) ... [2022-03-15 15:08:10,430 INFO L111 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_09-idxsense_rc.i [2022-03-15 15:08:10,434 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 15:08:10,434 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-15 15:08:10,434 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-03-15 15:08:10,434 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 15:08:10,456 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,456 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,457 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,457 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,457 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,457 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,457 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,457 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,457 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,458 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,458 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,458 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,458 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,458 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,460 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,460 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,460 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,460 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,460 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,460 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,461 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,461 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,461 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,461 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,461 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,461 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,462 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,462 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,462 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,462 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,462 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,463 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,463 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,463 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,463 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,464 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,464 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,464 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,464 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,464 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,464 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,464 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,464 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,465 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,467 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,467 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,467 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,467 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,468 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,468 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,468 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,468 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:08:10,469 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-15 15:08:10,496 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 15:08:10,501 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 15:08:10,501 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-03-15 15:08:10,512 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 85 places, 83 transitions, 171 flow [2022-03-15 15:08:10,578 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 754 states, 746 states have (on average 1.9142091152815013) internal successors, (1428), 753 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:08:10,580 INFO L276 IsEmpty]: Start isEmpty. Operand has 754 states, 746 states have (on average 1.9142091152815013) internal successors, (1428), 753 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:08:10,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-03-15 15:08:10,588 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:08:10,589 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:08:10,590 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:08:10,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:08:10,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1730628035, now seen corresponding path program 1 times [2022-03-15 15:08:10,603 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:08:10,604 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575961976] [2022-03-15 15:08:10,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:08:10,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:08:10,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:08:10,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:08:10,764 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:08:10,764 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575961976] [2022-03-15 15:08:10,765 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575961976] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:08:10,765 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:08:10,765 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 15:08:10,766 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763870352] [2022-03-15 15:08:10,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:08:10,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-15 15:08:10,770 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:08:10,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-15 15:08:10,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-15 15:08:10,796 INFO L87 Difference]: Start difference. First operand has 754 states, 746 states have (on average 1.9142091152815013) internal successors, (1428), 753 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:08:10,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:08:10,832 INFO L93 Difference]: Finished difference Result 754 states and 1427 transitions. [2022-03-15 15:08:10,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-15 15:08:10,834 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-03-15 15:08:10,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:08:10,857 INFO L225 Difference]: With dead ends: 754 [2022-03-15 15:08:10,857 INFO L226 Difference]: Without dead ends: 754 [2022-03-15 15:08:10,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-15 15:08:10,862 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 15:08:10,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 80 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 15:08:10,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2022-03-15 15:08:10,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 754. [2022-03-15 15:08:10,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 746 states have (on average 1.9128686327077749) internal successors, (1427), 753 states have internal predecessors, (1427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:08:10,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 1427 transitions. [2022-03-15 15:08:10,934 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 1427 transitions. Word has length 30 [2022-03-15 15:08:10,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:08:10,934 INFO L470 AbstractCegarLoop]: Abstraction has 754 states and 1427 transitions. [2022-03-15 15:08:10,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:08:10,935 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 1427 transitions. [2022-03-15 15:08:10,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-03-15 15:08:10,936 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:08:10,936 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:08:10,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 15:08:10,936 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:08:10,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:08:10,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1056787452, now seen corresponding path program 1 times [2022-03-15 15:08:10,937 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:08:10,937 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372893657] [2022-03-15 15:08:10,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:08:10,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:08:10,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:08:10,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:08:10,994 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:08:10,996 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372893657] [2022-03-15 15:08:10,996 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372893657] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:08:10,996 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:08:10,996 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 15:08:10,996 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792778435] [2022-03-15 15:08:10,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:08:10,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 15:08:10,998 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:08:10,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 15:08:10,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 15:08:10,998 INFO L87 Difference]: Start difference. First operand 754 states and 1427 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:08:11,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:08:11,017 INFO L93 Difference]: Finished difference Result 758 states and 1431 transitions. [2022-03-15 15:08:11,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 15:08:11,017 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-03-15 15:08:11,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:08:11,020 INFO L225 Difference]: With dead ends: 758 [2022-03-15 15:08:11,020 INFO L226 Difference]: Without dead ends: 758 [2022-03-15 15:08:11,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 15:08:11,021 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 3 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 15:08:11,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 150 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 15:08:11,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2022-03-15 15:08:11,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 755. [2022-03-15 15:08:11,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 755 states, 747 states have (on average 1.9116465863453815) internal successors, (1428), 754 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:08:11,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 1428 transitions. [2022-03-15 15:08:11,044 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 1428 transitions. Word has length 30 [2022-03-15 15:08:11,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:08:11,044 INFO L470 AbstractCegarLoop]: Abstraction has 755 states and 1428 transitions. [2022-03-15 15:08:11,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:08:11,044 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 1428 transitions. [2022-03-15 15:08:11,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-03-15 15:08:11,045 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:08:11,045 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:08:11,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 15:08:11,046 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:08:11,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:08:11,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1222323389, now seen corresponding path program 1 times [2022-03-15 15:08:11,046 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:08:11,046 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845612399] [2022-03-15 15:08:11,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:08:11,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:08:11,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:08:11,097 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:08:11,097 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:08:11,097 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845612399] [2022-03-15 15:08:11,097 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845612399] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 15:08:11,097 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100191589] [2022-03-15 15:08:11,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:08:11,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 15:08:11,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 15:08:11,099 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 15:08:11,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-15 15:08:11,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:08:11,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2022-03-15 15:08:11,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 15:08:11,279 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:08:11,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 15:08:11,344 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:08:11,345 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100191589] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 15:08:11,345 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 15:08:11,345 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-03-15 15:08:11,345 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849212769] [2022-03-15 15:08:11,345 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 15:08:11,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:08:11,346 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:08:11,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:08:11,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:08:11,346 INFO L87 Difference]: Start difference. First operand 755 states and 1428 transitions. Second operand has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:08:11,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:08:11,400 INFO L93 Difference]: Finished difference Result 765 states and 1438 transitions. [2022-03-15 15:08:11,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:08:11,400 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-03-15 15:08:11,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:08:11,403 INFO L225 Difference]: With dead ends: 765 [2022-03-15 15:08:11,403 INFO L226 Difference]: Without dead ends: 765 [2022-03-15 15:08:11,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-03-15 15:08:11,404 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 17 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 15:08:11,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 371 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 15:08:11,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2022-03-15 15:08:11,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 765. [2022-03-15 15:08:11,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 757 states have (on average 1.8996036988110965) internal successors, (1438), 764 states have internal predecessors, (1438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:08:11,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 1438 transitions. [2022-03-15 15:08:11,424 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 1438 transitions. Word has length 35 [2022-03-15 15:08:11,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:08:11,424 INFO L470 AbstractCegarLoop]: Abstraction has 765 states and 1438 transitions. [2022-03-15 15:08:11,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:08:11,425 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 1438 transitions. [2022-03-15 15:08:11,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-03-15 15:08:11,426 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:08:11,426 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:08:11,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-15 15:08:11,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 15:08:11,643 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:08:11,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:08:11,643 INFO L85 PathProgramCache]: Analyzing trace with hash 563003363, now seen corresponding path program 2 times [2022-03-15 15:08:11,643 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:08:11,644 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650232812] [2022-03-15 15:08:11,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:08:11,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:08:11,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:08:11,772 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:08:11,772 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:08:11,772 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650232812] [2022-03-15 15:08:11,772 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650232812] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 15:08:11,772 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [388148128] [2022-03-15 15:08:11,772 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-15 15:08:11,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 15:08:11,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 15:08:11,774 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 15:08:11,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-15 15:08:11,833 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-03-15 15:08:11,833 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 15:08:11,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 17 conjunts are in the unsatisfiable core [2022-03-15 15:08:11,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 15:08:11,938 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-15 15:08:11,970 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-15 15:08:11,970 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-15 15:08:12,008 INFO L353 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-03-15 15:08:12,008 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 34 [2022-03-15 15:08:12,064 INFO L353 Elim1Store]: treesize reduction 114, result has 19.7 percent of original size [2022-03-15 15:08:12,064 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 46 [2022-03-15 15:08:12,086 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-03-15 15:08:12,087 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-15 15:08:12,088 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [388148128] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:08:12,088 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-15 15:08:12,088 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2022-03-15 15:08:12,089 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062056404] [2022-03-15 15:08:12,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:08:12,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 15:08:12,089 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:08:12,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 15:08:12,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-03-15 15:08:12,090 INFO L87 Difference]: Start difference. First operand 765 states and 1438 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:08:12,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:08:12,301 INFO L93 Difference]: Finished difference Result 1163 states and 2192 transitions. [2022-03-15 15:08:12,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 15:08:12,302 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have 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 [2022-03-15 15:08:12,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:08:12,306 INFO L225 Difference]: With dead ends: 1163 [2022-03-15 15:08:12,306 INFO L226 Difference]: Without dead ends: 1163 [2022-03-15 15:08:12,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-03-15 15:08:12,307 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 188 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:08:12,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 293 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:08:12,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1163 states. [2022-03-15 15:08:12,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1163 to 867. [2022-03-15 15:08:12,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 860 states have (on average 1.913953488372093) internal successors, (1646), 866 states have internal predecessors, (1646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:08:12,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1646 transitions. [2022-03-15 15:08:12,325 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1646 transitions. Word has length 45 [2022-03-15 15:08:12,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:08:12,325 INFO L470 AbstractCegarLoop]: Abstraction has 867 states and 1646 transitions. [2022-03-15 15:08:12,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:08:12,325 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1646 transitions. [2022-03-15 15:08:12,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-03-15 15:08:12,327 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:08:12,327 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:08:12,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-15 15:08:12,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-03-15 15:08:12,547 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:08:12,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:08:12,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1709219736, now seen corresponding path program 1 times [2022-03-15 15:08:12,548 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:08:12,548 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983821972] [2022-03-15 15:08:12,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:08:12,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:08:12,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:08:12,639 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:08:12,639 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:08:12,639 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983821972] [2022-03-15 15:08:12,639 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983821972] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 15:08:12,639 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174482959] [2022-03-15 15:08:12,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:08:12,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 15:08:12,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 15:08:12,641 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 15:08:12,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-15 15:08:12,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:08:12,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-15 15:08:12,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 15:08:12,808 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:08:12,809 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 15:08:12,922 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:08:12,922 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174482959] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 15:08:12,922 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 15:08:12,922 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-03-15 15:08:12,922 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403236804] [2022-03-15 15:08:12,922 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 15:08:12,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 15:08:12,923 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:08:12,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 15:08:12,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-03-15 15:08:12,924 INFO L87 Difference]: Start difference. First operand 867 states and 1646 transitions. Second operand has 18 states, 18 states have (on average 4.166666666666667) internal successors, (75), 18 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:08:13,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:08:13,076 INFO L93 Difference]: Finished difference Result 887 states and 1666 transitions. [2022-03-15 15:08:13,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 15:08:13,076 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.166666666666667) internal successors, (75), 18 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-03-15 15:08:13,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:08:13,080 INFO L225 Difference]: With dead ends: 887 [2022-03-15 15:08:13,080 INFO L226 Difference]: Without dead ends: 887 [2022-03-15 15:08:13,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=280, Invalid=590, Unknown=0, NotChecked=0, Total=870 [2022-03-15 15:08:13,082 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 41 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:08:13,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 376 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:08:13,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2022-03-15 15:08:13,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 887. [2022-03-15 15:08:13,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 887 states, 880 states have (on average 1.893181818181818) internal successors, (1666), 886 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:08:13,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1666 transitions. [2022-03-15 15:08:13,101 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1666 transitions. Word has length 53 [2022-03-15 15:08:13,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:08:13,102 INFO L470 AbstractCegarLoop]: Abstraction has 887 states and 1666 transitions. [2022-03-15 15:08:13,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.166666666666667) internal successors, (75), 18 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:08:13,102 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1666 transitions. [2022-03-15 15:08:13,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-03-15 15:08:13,106 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:08:13,107 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:08:13,129 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-15 15:08:13,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 15:08:13,319 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:08:13,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:08:13,320 INFO L85 PathProgramCache]: Analyzing trace with hash -731766360, now seen corresponding path program 2 times [2022-03-15 15:08:13,320 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:08:13,320 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246168458] [2022-03-15 15:08:13,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:08:13,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:08:13,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:08:13,465 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:08:13,466 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:08:13,466 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246168458] [2022-03-15 15:08:13,466 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246168458] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 15:08:13,466 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716366229] [2022-03-15 15:08:13,466 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-15 15:08:13,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 15:08:13,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 15:08:13,467 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 15:08:13,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-15 15:08:13,539 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-03-15 15:08:13,540 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 15:08:13,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 17 conjunts are in the unsatisfiable core [2022-03-15 15:08:13,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 15:08:13,624 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-15 15:08:13,649 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-15 15:08:13,649 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-15 15:08:13,684 INFO L353 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-03-15 15:08:13,684 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 34 [2022-03-15 15:08:13,729 INFO L353 Elim1Store]: treesize reduction 114, result has 19.7 percent of original size [2022-03-15 15:08:13,730 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 46 [2022-03-15 15:08:13,751 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-03-15 15:08:13,751 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-15 15:08:13,751 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716366229] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:08:13,751 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-15 15:08:13,751 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2022-03-15 15:08:13,751 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274517095] [2022-03-15 15:08:13,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:08:13,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 15:08:13,752 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:08:13,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 15:08:13,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-03-15 15:08:13,752 INFO L87 Difference]: Start difference. First operand 887 states and 1666 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:08:13,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:08:13,893 INFO L93 Difference]: Finished difference Result 1192 states and 2224 transitions. [2022-03-15 15:08:13,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 15:08:13,894 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-03-15 15:08:13,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:08:13,897 INFO L225 Difference]: With dead ends: 1192 [2022-03-15 15:08:13,897 INFO L226 Difference]: Without dead ends: 972 [2022-03-15 15:08:13,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-03-15 15:08:13,898 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 108 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:08:13,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 273 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:08:13,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states. [2022-03-15 15:08:13,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 794. [2022-03-15 15:08:13,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 787 states have (on average 1.8614993646759848) internal successors, (1465), 793 states have internal predecessors, (1465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:08:13,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1465 transitions. [2022-03-15 15:08:13,915 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1465 transitions. Word has length 73 [2022-03-15 15:08:13,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:08:13,916 INFO L470 AbstractCegarLoop]: Abstraction has 794 states and 1465 transitions. [2022-03-15 15:08:13,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:08:13,916 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1465 transitions. [2022-03-15 15:08:13,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-03-15 15:08:13,917 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:08:13,917 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:08:13,941 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-15 15:08:14,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 15:08:14,132 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:08:14,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:08:14,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1750930688, now seen corresponding path program 1 times [2022-03-15 15:08:14,133 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:08:14,133 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174673153] [2022-03-15 15:08:14,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:08:14,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:08:14,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:08:14,273 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:08:14,273 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:08:14,273 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174673153] [2022-03-15 15:08:14,273 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174673153] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 15:08:14,273 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1798938217] [2022-03-15 15:08:14,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:08:14,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 15:08:14,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 15:08:14,274 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 15:08:14,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-15 15:08:14,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:08:14,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 16 conjunts are in the unsatisfiable core [2022-03-15 15:08:14,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 15:08:14,465 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:08:14,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 15:08:14,638 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:08:14,638 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1798938217] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 15:08:14,638 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 15:08:14,638 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-03-15 15:08:14,638 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581296384] [2022-03-15 15:08:14,638 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 15:08:14,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-15 15:08:14,639 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:08:14,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-15 15:08:14,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-03-15 15:08:14,639 INFO L87 Difference]: Start difference. First operand 794 states and 1465 transitions. Second operand has 23 states, 23 states have (on average 3.9565217391304346) internal successors, (91), 23 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:08:14,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:08:14,887 INFO L93 Difference]: Finished difference Result 809 states and 1480 transitions. [2022-03-15 15:08:14,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 15:08:14,888 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.9565217391304346) internal successors, (91), 23 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-03-15 15:08:14,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:08:14,891 INFO L225 Difference]: With dead ends: 809 [2022-03-15 15:08:14,891 INFO L226 Difference]: Without dead ends: 809 [2022-03-15 15:08:14,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 141 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=524, Invalid=1116, Unknown=0, NotChecked=0, Total=1640 [2022-03-15 15:08:14,892 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 40 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:08:14,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 670 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:08:14,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2022-03-15 15:08:14,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 809. [2022-03-15 15:08:14,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 802 states have (on average 1.8453865336658355) internal successors, (1480), 808 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:08:14,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1480 transitions. [2022-03-15 15:08:14,904 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1480 transitions. Word has length 74 [2022-03-15 15:08:14,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:08:14,905 INFO L470 AbstractCegarLoop]: Abstraction has 809 states and 1480 transitions. [2022-03-15 15:08:14,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.9565217391304346) internal successors, (91), 23 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:08:14,905 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1480 transitions. [2022-03-15 15:08:14,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-03-15 15:08:14,906 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:08:14,906 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:08:14,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-15 15:08:15,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 15:08:15,124 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:08:15,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:08:15,124 INFO L85 PathProgramCache]: Analyzing trace with hash -258743201, now seen corresponding path program 2 times [2022-03-15 15:08:15,124 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:08:15,125 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219607813] [2022-03-15 15:08:15,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:08:15,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:08:15,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:08:15,226 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-03-15 15:08:15,226 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:08:15,226 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219607813] [2022-03-15 15:08:15,227 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219607813] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:08:15,227 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:08:15,227 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 15:08:15,227 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363174301] [2022-03-15 15:08:15,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:08:15,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 15:08:15,227 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:08:15,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 15:08:15,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-03-15 15:08:15,228 INFO L87 Difference]: Start difference. First operand 809 states and 1480 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:08:15,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:08:15,365 INFO L93 Difference]: Finished difference Result 1008 states and 1818 transitions. [2022-03-15 15:08:15,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 15:08:15,365 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2022-03-15 15:08:15,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:08:15,368 INFO L225 Difference]: With dead ends: 1008 [2022-03-15 15:08:15,368 INFO L226 Difference]: Without dead ends: 861 [2022-03-15 15:08:15,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-03-15 15:08:15,368 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 96 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:08:15,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 194 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:08:15,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2022-03-15 15:08:15,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 744. [2022-03-15 15:08:15,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 744 states, 737 states have (on average 1.7978290366350067) internal successors, (1325), 743 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:08:15,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1325 transitions. [2022-03-15 15:08:15,380 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1325 transitions. Word has length 89 [2022-03-15 15:08:15,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:08:15,381 INFO L470 AbstractCegarLoop]: Abstraction has 744 states and 1325 transitions. [2022-03-15 15:08:15,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:08:15,381 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1325 transitions. [2022-03-15 15:08:15,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-03-15 15:08:15,382 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:08:15,382 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:08:15,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-15 15:08:15,382 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:08:15,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:08:15,382 INFO L85 PathProgramCache]: Analyzing trace with hash 649089680, now seen corresponding path program 1 times [2022-03-15 15:08:15,382 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:08:15,382 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816658987] [2022-03-15 15:08:15,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:08:15,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:08:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 15:08:15,406 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-15 15:08:15,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 15:08:15,440 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-15 15:08:15,441 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-15 15:08:15,441 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2022-03-15 15:08:15,442 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2022-03-15 15:08:15,442 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 7 remaining) [2022-03-15 15:08:15,443 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2022-03-15 15:08:15,443 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2022-03-15 15:08:15,443 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2022-03-15 15:08:15,443 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2022-03-15 15:08:15,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-15 15:08:15,445 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1] [2022-03-15 15:08:15,448 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 15:08:15,448 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 15:08:15,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 03:08:15 BasicIcfg [2022-03-15 15:08:15,477 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 15:08:15,477 INFO L158 Benchmark]: Toolchain (without parser) took 5871.60ms. Allocated memory was 233.8MB in the beginning and 338.7MB in the end (delta: 104.9MB). Free memory was 174.4MB in the beginning and 234.4MB in the end (delta: -59.9MB). Peak memory consumption was 45.6MB. Max. memory is 8.0GB. [2022-03-15 15:08:15,478 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 233.8MB. Free memory is still 191.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 15:08:15,478 INFO L158 Benchmark]: CACSL2BoogieTranslator took 411.86ms. Allocated memory was 233.8MB in the beginning and 338.7MB in the end (delta: 104.9MB). Free memory was 174.2MB in the beginning and 300.2MB in the end (delta: -126.0MB). Peak memory consumption was 5.4MB. Max. memory is 8.0GB. [2022-03-15 15:08:15,478 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.53ms. Allocated memory is still 338.7MB. Free memory was 300.2MB in the beginning and 298.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 15:08:15,478 INFO L158 Benchmark]: Boogie Preprocessor took 34.06ms. Allocated memory is still 338.7MB. Free memory was 298.6MB in the beginning and 296.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 15:08:15,478 INFO L158 Benchmark]: RCFGBuilder took 318.13ms. Allocated memory is still 338.7MB. Free memory was 296.5MB in the beginning and 282.9MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-03-15 15:08:15,479 INFO L158 Benchmark]: TraceAbstraction took 5051.00ms. Allocated memory is still 338.7MB. Free memory was 282.4MB in the beginning and 234.4MB in the end (delta: 48.0MB). Peak memory consumption was 49.6MB. Max. memory is 8.0GB. [2022-03-15 15:08:15,479 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 233.8MB. Free memory is still 191.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 411.86ms. Allocated memory was 233.8MB in the beginning and 338.7MB in the end (delta: 104.9MB). Free memory was 174.2MB in the beginning and 300.2MB in the end (delta: -126.0MB). Peak memory consumption was 5.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 52.53ms. Allocated memory is still 338.7MB. Free memory was 300.2MB in the beginning and 298.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.06ms. Allocated memory is still 338.7MB. Free memory was 298.6MB in the beginning and 296.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 318.13ms. Allocated memory is still 338.7MB. Free memory was 296.5MB in the beginning and 282.9MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 5051.00ms. Allocated memory is still 338.7MB. Free memory was 282.4MB in the beginning and 234.4MB in the end (delta: 48.0MB). Peak memory consumption was 49.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 693]: Data race detected Data race detected The following path leads to a data race: [L679] 0 int data[10]; VAL [data={1:0}] [L680] 0 pthread_mutex_t m[10]; VAL [data={1:0}, m={2:0}] [L688] 0 int i = 0; VAL [data={1:0}, i=0, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=0, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=1, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=1, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=2, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=2, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=3, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=3, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=4, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=4, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=5, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=5, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=6, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=6, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=7, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=7, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=8, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=8, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=9, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=9, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=10, m={2:0}] [L688] COND FALSE 0 !(i < 10) VAL [data={1:0}, i=10, m={2:0}] [L690] 0 pthread_t id; VAL [data={1:0}, i=10, id={3:0}, m={2:0}] [L691] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, data={1:0}, i=10, id={3:0}, m={2:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L693] EXPR 0 data[4] VAL [arg={0:0}, data={1:0}, data[4]=0, i=10, id={3:0}, m={2:0}] [L693] 0 data[4]++ VAL [arg={0:0}, data={1:0}, data[4]=0, data[4]++=0, data[4]++=241, i=10, id={3:0}, m={2:0}] [L683] EXPR 1 data[4] VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=1, m={2:0}] [L683] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=1, m={2:0}] [L693] 0 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[4]=1, data[4]++=241, data[4]++=0, i=10, id={3:0}, m={2:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: data[4]++ [693] * C: data[4]++ [693] * C: data[4]++ [683] * C: data[4]++ [693] * C: data[4]++ [693] and C: data[4]++ [693] - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 683]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 683]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 109 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 5.0s, OverallIterations: 9, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 493 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 493 mSDsluCounter, 2407 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1728 mSDsCounter, 159 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 783 IncrementalHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 159 mSolverCounterUnsat, 699 mSDtfsCounter, 783 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 535 GetRequests, 420 SyntacticMatches, 1 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 634 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=887occurred in iteration=5, InterpolantAutomatonStates: 83, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 594 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 803 NumberOfCodeBlocks, 753 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 855 ConstructedInterpolants, 0 QuantifiedInterpolants, 1576 SizeOfPredicates, 22 NumberOfNonLiveVariables, 686 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 16 InterpolantComputations, 5 PerfectInterpolantSequences, 365/888 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-03-15 15:08:15,534 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...