/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.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/04-mutex_50-funptr_rc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 20:13:02,748 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 20:13:02,749 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 20:13:02,801 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-15 20:13:02,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-15 20:13:02,804 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-15 20:13:02,807 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-15 20:13:02,811 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-15 20:13:02,813 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-15 20:13:02,817 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-15 20:13:02,818 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-15 20:13:02,818 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-15 20:13:02,818 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-15 20:13:02,819 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-15 20:13:02,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-15 20:13:02,820 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-15 20:13:02,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-15 20:13:02,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-15 20:13:02,822 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-15 20:13:02,823 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-15 20:13:02,825 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-15 20:13:02,826 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-15 20:13:02,828 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-15 20:13:02,829 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-15 20:13:02,834 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-15 20:13:02,835 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-15 20:13:02,835 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-15 20:13:02,836 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-15 20:13:02,836 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-15 20:13:02,837 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-15 20:13:02,837 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-15 20:13:02,837 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-15 20:13:02,839 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-15 20:13:02,839 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-15 20:13:02,840 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-15 20:13:02,841 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-15 20:13:02,841 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-15 20:13:02,841 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-15 20:13:02,841 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 20:13:02,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 20:13:02,842 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 20:13:02,843 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2022-03-15 20:13:02,871 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 20:13:02,871 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 20:13:02,872 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 20:13:02,872 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 20:13:02,872 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 20:13:02,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 20:13:02,873 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 20:13:02,873 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 20:13:02,873 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 20:13:02,873 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 20:13:02,873 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 20:13:02,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 20:13:02,873 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 20:13:02,873 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 20:13:02,873 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 20:13:02,873 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 20:13:02,873 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 20:13:02,873 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 20:13:02,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 20:13:02,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 20:13:02,874 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 20:13:02,874 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 20:13:02,874 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 20:13:02,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 20:13:02,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 20:13:02,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-15 20:13:02,874 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 20:13:02,874 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 20:13:02,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 20:13:02,875 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2022-03-15 20:13:02,875 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2022-03-15 20:13:02,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 20:13:02,875 INFO L138 SettingsManager]: * Interpolant automaton=MCR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2022-03-15 20:13:03,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 20:13:03,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 20:13:03,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 20:13:03,065 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 20:13:03,065 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 20:13:03,066 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_50-funptr_rc.i [2022-03-15 20:13:03,116 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f6b22b3e/87c97cf0502b49a890ff3e97c26efb21/FLAG64f0d05a4 [2022-03-15 20:13:03,497 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 20:13:03,498 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_50-funptr_rc.i [2022-03-15 20:13:03,515 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f6b22b3e/87c97cf0502b49a890ff3e97c26efb21/FLAG64f0d05a4 [2022-03-15 20:13:03,848 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f6b22b3e/87c97cf0502b49a890ff3e97c26efb21 [2022-03-15 20:13:03,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 20:13:03,850 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 20:13:03,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 20:13:03,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 20:13:03,855 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 20:13:03,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 08:13:03" (1/1) ... [2022-03-15 20:13:03,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b6f871a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:13:03, skipping insertion in model container [2022-03-15 20:13:03,856 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 08:13:03" (1/1) ... [2022-03-15 20:13:03,861 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 20:13:03,895 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 20:13:04,461 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 20:13:04,490 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 20:13:04,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 20:13:04,617 INFO L208 MainTranslator]: Completed translation [2022-03-15 20:13:04,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:13:04 WrapperNode [2022-03-15 20:13:04,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 20:13:04,619 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 20:13:04,623 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 20:13:04,623 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 20:13:04,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:13:04" (1/1) ... [2022-03-15 20:13:04,663 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:13:04" (1/1) ... [2022-03-15 20:13:04,717 INFO L137 Inliner]: procedures = 265, calls = 25, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 65 [2022-03-15 20:13:04,718 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 20:13:04,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 20:13:04,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 20:13:04,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 20:13:04,724 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:13:04" (1/1) ... [2022-03-15 20:13:04,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:13:04" (1/1) ... [2022-03-15 20:13:04,734 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:13:04" (1/1) ... [2022-03-15 20:13:04,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:13:04" (1/1) ... [2022-03-15 20:13:04,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:13:04" (1/1) ... [2022-03-15 20:13:04,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:13:04" (1/1) ... [2022-03-15 20:13:04,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:13:04" (1/1) ... [2022-03-15 20:13:04,755 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 20:13:04,755 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 20:13:04,755 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 20:13:04,756 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 20:13:04,756 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:13:04" (1/1) ... [2022-03-15 20:13:04,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 20:13:04,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:13:04,798 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 20:13:04,802 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 20:13:04,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 20:13:04,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 20:13:04,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 20:13:04,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 20:13:04,828 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-03-15 20:13:04,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 20:13:04,828 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-03-15 20:13:04,828 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-03-15 20:13:04,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 20:13:04,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 20:13:04,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 20:13:04,829 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 20:13:04,910 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 20:13:04,911 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 20:13:05,020 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 20:13:05,024 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 20:13:05,025 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-15 20:13:05,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 08:13:05 BoogieIcfgContainer [2022-03-15 20:13:05,026 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 20:13:05,027 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 20:13:05,027 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 20:13:05,029 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 20:13:05,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 08:13:03" (1/3) ... [2022-03-15 20:13:05,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fd7eccb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 08:13:05, skipping insertion in model container [2022-03-15 20:13:05,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:13:04" (2/3) ... [2022-03-15 20:13:05,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fd7eccb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 08:13:05, skipping insertion in model container [2022-03-15 20:13:05,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 08:13:05" (3/3) ... [2022-03-15 20:13:05,031 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_50-funptr_rc.i [2022-03-15 20:13:05,034 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 20:13:05,034 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-15 20:13:05,034 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-03-15 20:13:05,034 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 20:13:05,053 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:05,054 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:05,054 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:05,054 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:05,054 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:05,054 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:05,054 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:05,054 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:05,055 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:05,055 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:05,055 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:05,055 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:05,055 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:05,055 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:05,055 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:05,056 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:05,056 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:05,056 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:05,056 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:05,056 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:05,056 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:05,056 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:05,056 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:05,056 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:05,057 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:05,057 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:05,059 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:05,059 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:05,059 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:05,059 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:05,059 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:05,059 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:13:05,062 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-03-15 20:13:05,096 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 20:13:05,101 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=MCR, 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=true, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 20:13:05,101 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-15 20:13:05,114 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 20:13:05,120 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 92 transitions, 192 flow [2022-03-15 20:13:05,122 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 92 transitions, 192 flow [2022-03-15 20:13:05,123 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 95 places, 92 transitions, 192 flow [2022-03-15 20:13:05,154 INFO L129 PetriNetUnfolder]: 1/91 cut-off events. [2022-03-15 20:13:05,155 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-03-15 20:13:05,157 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 91 events. 1/91 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 45 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2022-03-15 20:13:05,159 INFO L116 LiptonReduction]: Number of co-enabled transitions 1032 [2022-03-15 20:13:07,492 INFO L131 LiptonReduction]: Checked pairs total: 2206 [2022-03-15 20:13:07,493 INFO L133 LiptonReduction]: Total number of compositions: 82 [2022-03-15 20:13:07,499 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 18 transitions, 44 flow [2022-03-15 20:13:07,515 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 56 states, 51 states have (on average 1.8627450980392157) internal successors, (95), 55 states have internal predecessors, (95), 0 states have call successors, (0), 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 20:13:07,517 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 51 states have (on average 1.8627450980392157) internal successors, (95), 55 states have internal predecessors, (95), 0 states have call successors, (0), 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 20:13:07,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-03-15 20:13:07,521 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:13:07,522 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-03-15 20:13:07,522 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2022-03-15 20:13:07,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:13:07,526 INFO L85 PathProgramCache]: Analyzing trace with hash 299081393, now seen corresponding path program 1 times [2022-03-15 20:13:07,539 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:13:07,539 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797817458] [2022-03-15 20:13:07,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:13:07,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:13:07,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:13:07,660 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 20:13:07,660 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:13:07,660 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797817458] [2022-03-15 20:13:07,661 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797817458] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 20:13:07,661 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 20:13:07,661 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 20:13:07,662 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [327068241] [2022-03-15 20:13:07,662 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:13:07,664 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:13:07,670 INFO L252 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2022-03-15 20:13:07,670 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:13:07,672 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:13:07,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 20:13:07,673 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:13:07,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 20:13:07,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:13:07,688 INFO L87 Difference]: Start difference. First operand has 56 states, 51 states have (on average 1.8627450980392157) internal successors, (95), 55 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 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 20:13:07,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:13:07,720 INFO L93 Difference]: Finished difference Result 60 states and 96 transitions. [2022-03-15 20:13:07,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 20:13:07,721 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2022-03-15 20:13:07,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:13:07,726 INFO L225 Difference]: With dead ends: 60 [2022-03-15 20:13:07,726 INFO L226 Difference]: Without dead ends: 46 [2022-03-15 20:13:07,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 20:13:07,729 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 8 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:13:07,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 6 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:13:07,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-03-15 20:13:07,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 40. [2022-03-15 20:13:07,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 37 states have (on average 1.7027027027027026) internal successors, (63), 39 states have internal predecessors, (63), 0 states have call successors, (0), 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 20:13:07,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 63 transitions. [2022-03-15 20:13:07,750 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 63 transitions. Word has length 5 [2022-03-15 20:13:07,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:13:07,751 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 63 transitions. [2022-03-15 20:13:07,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 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 20:13:07,751 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 63 transitions. [2022-03-15 20:13:07,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-03-15 20:13:07,751 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:13:07,751 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-03-15 20:13:07,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 20:13:07,752 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2022-03-15 20:13:07,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:13:07,752 INFO L85 PathProgramCache]: Analyzing trace with hash 681844135, now seen corresponding path program 1 times [2022-03-15 20:13:07,753 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:13:07,754 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292532388] [2022-03-15 20:13:07,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:13:07,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:13:07,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:13:07,784 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 20:13:07,784 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:13:07,784 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292532388] [2022-03-15 20:13:07,784 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292532388] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 20:13:07,785 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 20:13:07,785 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 20:13:07,785 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1846171025] [2022-03-15 20:13:07,785 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:13:07,785 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:13:07,786 INFO L252 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2022-03-15 20:13:07,786 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:13:07,786 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:13:07,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 20:13:07,787 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:13:07,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 20:13:07,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:13:07,788 INFO L87 Difference]: Start difference. First operand 40 states and 63 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 20:13:07,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:13:07,822 INFO L93 Difference]: Finished difference Result 39 states and 57 transitions. [2022-03-15 20:13:07,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 20:13:07,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2022-03-15 20:13:07,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:13:07,824 INFO L225 Difference]: With dead ends: 39 [2022-03-15 20:13:07,824 INFO L226 Difference]: Without dead ends: 27 [2022-03-15 20:13:07,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 20:13:07,825 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 5 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:13:07,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 6 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:13:07,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-03-15 20:13:07,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-03-15 20:13:07,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 25 states have (on average 1.44) internal successors, (36), 26 states have internal predecessors, (36), 0 states have call successors, (0), 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 20:13:07,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2022-03-15 20:13:07,846 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 6 [2022-03-15 20:13:07,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:13:07,847 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2022-03-15 20:13:07,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 20:13:07,847 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2022-03-15 20:13:07,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-03-15 20:13:07,848 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:13:07,848 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:13:07,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 20:13:07,849 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2022-03-15 20:13:07,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:13:07,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1877723983, now seen corresponding path program 1 times [2022-03-15 20:13:07,850 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:13:07,851 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756249772] [2022-03-15 20:13:07,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:13:07,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:13:07,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 20:13:07,892 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-15 20:13:07,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 20:13:07,935 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-15 20:13:07,935 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-15 20:13:07,938 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 5 remaining) [2022-03-15 20:13:07,940 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2022-03-15 20:13:07,940 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining) [2022-03-15 20:13:07,940 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 5 remaining) [2022-03-15 20:13:07,940 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining) [2022-03-15 20:13:07,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 20:13:07,943 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-03-15 20:13:07,946 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 20:13:07,946 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 20:13:07,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 08:13:07 BasicIcfg [2022-03-15 20:13:07,966 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 20:13:07,968 INFO L158 Benchmark]: Toolchain (without parser) took 4116.25ms. Allocated memory was 189.8MB in the beginning and 237.0MB in the end (delta: 47.2MB). Free memory was 134.7MB in the beginning and 201.3MB in the end (delta: -66.5MB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 20:13:07,969 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 189.8MB. Free memory was 152.6MB in the beginning and 152.5MB in the end (delta: 79.2kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 20:13:07,974 INFO L158 Benchmark]: CACSL2BoogieTranslator took 765.76ms. Allocated memory is still 189.8MB. Free memory was 134.5MB in the beginning and 144.7MB in the end (delta: -10.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-03-15 20:13:07,975 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.73ms. Allocated memory is still 189.8MB. Free memory was 144.7MB in the beginning and 142.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 20:13:07,975 INFO L158 Benchmark]: Boogie Preprocessor took 36.42ms. Allocated memory is still 189.8MB. Free memory was 142.1MB in the beginning and 141.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 20:13:07,975 INFO L158 Benchmark]: RCFGBuilder took 270.58ms. Allocated memory is still 189.8MB. Free memory was 140.5MB in the beginning and 127.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-03-15 20:13:07,975 INFO L158 Benchmark]: TraceAbstraction took 2939.40ms. Allocated memory was 189.8MB in the beginning and 237.0MB in the end (delta: 47.2MB). Free memory was 127.4MB in the beginning and 201.3MB in the end (delta: -73.9MB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 20:13:07,976 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 189.8MB. Free memory was 152.6MB in the beginning and 152.5MB in the end (delta: 79.2kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 765.76ms. Allocated memory is still 189.8MB. Free memory was 134.5MB in the beginning and 144.7MB in the end (delta: -10.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 98.73ms. Allocated memory is still 189.8MB. Free memory was 144.7MB in the beginning and 142.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.42ms. Allocated memory is still 189.8MB. Free memory was 142.1MB in the beginning and 141.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 270.58ms. Allocated memory is still 189.8MB. Free memory was 140.5MB in the beginning and 127.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2939.40ms. Allocated memory was 189.8MB in the beginning and 237.0MB in the end (delta: 47.2MB). Free memory was 127.4MB in the beginning and 201.3MB in the end (delta: -73.9MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 95 PlacesBefore, 22 PlacesAfterwards, 92 TransitionsBefore, 18 TransitionsAfterwards, 1032 CoEnabledTransitionPairs, 6 FixpointIterations, 32 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 82 TotalNumberOfCompositions, 2206 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1433, positive: 1297, positive conditional: 0, positive unconditional: 1297, negative: 136, negative conditional: 0, negative unconditional: 136, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 619, positive: 592, positive conditional: 0, positive unconditional: 592, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1433, positive: 705, positive conditional: 0, positive unconditional: 705, negative: 109, negative conditional: 0, negative unconditional: 109, unknown: 619, unknown conditional: 0, unknown unconditional: 619] , Statistics on independence cache: Total cache size (in pairs): 38, Positive cache size: 29, Positive conditional cache size: 0, Positive unconditional cache size: 29, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - 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: 924]: Data race detected Data race detected The following path leads to a data race: [L919] 0 int (*fp)() = f1; [L920] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L921] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L929] 0 pthread_t id; [L930] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [={-1:0}, arg={0:0}, id={3:0}, mutex1={1:0}, mutex2={2:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L924] 1 fp = f2 VAL [={-1:1}, arg={0:0}, arg={0:0}, fp = f2=25, mutex1={1:0}, mutex2={2:0}] [L924] 1 fp = f2 VAL [={-1:1}, arg={0:0}, arg={0:0}, fp = f2=25, mutex1={1:0}, mutex2={2:0}] Now there is a data race on ~fp~0 between C: fp() [932] and C: fp = f2 [924] - UnprovableResult [Line: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 934]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 930]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 106 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 2.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 54 IncrementalHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 10 mSDtfsCounter, 54 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-03-15 20:13:08,015 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...