/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-PN-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 23:42:25,712 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 23:42:25,713 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 23:42:25,747 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 23:42:25,747 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 23:42:25,749 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 23:42:25,752 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 23:42:25,755 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 23:42:25,759 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 23:42:25,763 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 23:42:25,764 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 23:42:25,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 23:42:25,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 23:42:25,767 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 23:42:25,768 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 23:42:25,769 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 23:42:25,769 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 23:42:25,770 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 23:42:25,771 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 23:42:25,775 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 23:42:25,776 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 23:42:25,777 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 23:42:25,777 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 23:42:25,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 23:42:25,783 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-05 23:42:25,789 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 23:42:25,790 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 23:42:25,790 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 23:42:25,791 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-PN-RepeatedSemanticLbe.epf [2022-12-05 23:42:25,816 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 23:42:25,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 23:42:25,817 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 23:42:25,818 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 23:42:25,818 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 23:42:25,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 23:42:25,818 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 23:42:25,818 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 23:42:25,819 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 23:42:25,819 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 23:42:25,819 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 23:42:25,819 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 23:42:25,819 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 23:42:25,820 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 23:42:25,820 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 23:42:25,820 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 23:42:25,820 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 23:42:25,820 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 23:42:25,820 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 23:42:25,820 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 23:42:25,820 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 23:42:25,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 23:42:25,820 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 23:42:25,820 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 23:42:25,820 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 23:42:25,821 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 23:42:25,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 23:42:25,821 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-05 23:42:25,821 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 23:42:26,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 23:42:26,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 23:42:26,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 23:42:26,119 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 23:42:26,119 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 23:42:26,120 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i [2022-12-05 23:42:27,045 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 23:42:27,240 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 23:42:27,240 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i [2022-12-05 23:42:27,267 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86da3fbf1/1c92b01bfecb45e495f87216d55547c2/FLAG0c87400aa [2022-12-05 23:42:27,281 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86da3fbf1/1c92b01bfecb45e495f87216d55547c2 [2022-12-05 23:42:27,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 23:42:27,284 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 23:42:27,286 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 23:42:27,286 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 23:42:27,289 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 23:42:27,289 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:42:27" (1/1) ... [2022-12-05 23:42:27,290 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c8b3549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:42:27, skipping insertion in model container [2022-12-05 23:42:27,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:42:27" (1/1) ... [2022-12-05 23:42:27,294 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 23:42:27,331 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 23:42:27,430 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i[1103,1116] [2022-12-05 23:42:27,545 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 23:42:27,554 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 23:42:27,561 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i[1103,1116] [2022-12-05 23:42:27,577 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 23:42:27,606 INFO L208 MainTranslator]: Completed translation [2022-12-05 23:42:27,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:42:27 WrapperNode [2022-12-05 23:42:27,607 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 23:42:27,608 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 23:42:27,608 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 23:42:27,608 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 23:42:27,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:42:27" (1/1) ... [2022-12-05 23:42:27,635 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:42:27" (1/1) ... [2022-12-05 23:42:27,651 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2022-12-05 23:42:27,651 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 23:42:27,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 23:42:27,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 23:42:27,651 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 23:42:27,656 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:42:27" (1/1) ... [2022-12-05 23:42:27,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:42:27" (1/1) ... [2022-12-05 23:42:27,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:42:27" (1/1) ... [2022-12-05 23:42:27,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:42:27" (1/1) ... [2022-12-05 23:42:27,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:42:27" (1/1) ... [2022-12-05 23:42:27,670 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:42:27" (1/1) ... [2022-12-05 23:42:27,671 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:42:27" (1/1) ... [2022-12-05 23:42:27,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:42:27" (1/1) ... [2022-12-05 23:42:27,672 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 23:42:27,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 23:42:27,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 23:42:27,673 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 23:42:27,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:42:27" (1/1) ... [2022-12-05 23:42:27,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 23:42:27,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 23:42:27,697 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) [2022-12-05 23:42:27,702 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 [2022-12-05 23:42:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 23:42:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 23:42:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-05 23:42:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 23:42:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 23:42:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-05 23:42:27,719 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-05 23:42:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 23:42:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 23:42:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 23:42:27,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 23:42:27,720 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 23:42:27,791 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 23:42:27,792 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 23:42:27,952 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 23:42:27,956 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 23:42:27,957 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 23:42:27,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:42:27 BoogieIcfgContainer [2022-12-05 23:42:27,958 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 23:42:27,959 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 23:42:27,959 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 23:42:27,961 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 23:42:27,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 11:42:27" (1/3) ... [2022-12-05 23:42:27,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f8a7cdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 11:42:27, skipping insertion in model container [2022-12-05 23:42:27,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:42:27" (2/3) ... [2022-12-05 23:42:27,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f8a7cdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 11:42:27, skipping insertion in model container [2022-12-05 23:42:27,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:42:27" (3/3) ... [2022-12-05 23:42:27,963 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_2_pos.i [2022-12-05 23:42:27,995 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 23:42:27,995 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 23:42:27,996 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 23:42:28,049 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-05 23:42:28,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 65 transitions, 138 flow [2022-12-05 23:42:28,123 INFO L130 PetriNetUnfolder]: 1/64 cut-off events. [2022-12-05 23:42:28,123 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 23:42:28,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 64 events. 1/64 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2022-12-05 23:42:28,126 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 65 transitions, 138 flow [2022-12-05 23:42:28,129 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 52 transitions, 107 flow [2022-12-05 23:42:28,130 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:42:28,152 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 52 transitions, 107 flow [2022-12-05 23:42:28,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 52 transitions, 107 flow [2022-12-05 23:42:28,182 INFO L130 PetriNetUnfolder]: 0/52 cut-off events. [2022-12-05 23:42:28,182 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 23:42:28,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 52 events. 0/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 17 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-05 23:42:28,183 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 52 transitions, 107 flow [2022-12-05 23:42:28,184 INFO L188 LiptonReduction]: Number of co-enabled transitions 252 [2022-12-05 23:42:30,507 INFO L203 LiptonReduction]: Total number of compositions: 45 [2022-12-05 23:42:30,517 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 23:42:30,520 INFO L357 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=false, mAutomataTypeConcurrency=REPEATED_LIPTON_PN, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4a4bb6df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 23:42:30,520 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-05 23:42:30,522 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2022-12-05 23:42:30,522 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 23:42:30,522 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 23:42:30,523 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-05 23:42:30,523 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 23:42:30,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 23:42:30,526 INFO L85 PathProgramCache]: Analyzing trace with hash 6882470, now seen corresponding path program 1 times [2022-12-05 23:42:30,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 23:42:30,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411633417] [2022-12-05 23:42:30,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 23:42:30,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 23:42:30,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-05 23:42:30,597 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-05 23:42:30,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-05 23:42:30,621 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-05 23:42:30,622 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-05 23:42:30,624 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-05 23:42:30,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-05 23:42:30,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 23:42:30,625 INFO L458 BasicCegarLoop]: Path program histogram: [1] [2022-12-05 23:42:30,630 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 23:42:30,630 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 23:42:30,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 11:42:30 BasicIcfg [2022-12-05 23:42:30,640 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 23:42:30,640 INFO L158 Benchmark]: Toolchain (without parser) took 3356.23ms. Allocated memory was 196.1MB in the beginning and 252.7MB in the end (delta: 56.6MB). Free memory was 170.7MB in the beginning and 155.4MB in the end (delta: 15.4MB). Peak memory consumption was 73.1MB. Max. memory is 8.0GB. [2022-12-05 23:42:30,641 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 196.1MB. Free memory is still 172.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 23:42:30,641 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.55ms. Allocated memory is still 196.1MB. Free memory was 170.3MB in the beginning and 151.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-05 23:42:30,641 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.22ms. Allocated memory is still 196.1MB. Free memory was 151.4MB in the beginning and 149.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 23:42:30,642 INFO L158 Benchmark]: Boogie Preprocessor took 21.29ms. Allocated memory is still 196.1MB. Free memory was 149.7MB in the beginning and 148.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-05 23:42:30,642 INFO L158 Benchmark]: RCFGBuilder took 285.06ms. Allocated memory is still 196.1MB. Free memory was 148.2MB in the beginning and 135.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-05 23:42:30,642 INFO L158 Benchmark]: TraceAbstraction took 2680.55ms. Allocated memory was 196.1MB in the beginning and 252.7MB in the end (delta: 56.6MB). Free memory was 134.6MB in the beginning and 155.4MB in the end (delta: -20.8MB). Peak memory consumption was 37.4MB. Max. memory is 8.0GB. [2022-12-05 23:42:30,644 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 196.1MB. Free memory is still 172.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 320.55ms. Allocated memory is still 196.1MB. Free memory was 170.3MB in the beginning and 151.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 43.22ms. Allocated memory is still 196.1MB. Free memory was 151.4MB in the beginning and 149.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.29ms. Allocated memory is still 196.1MB. Free memory was 149.7MB in the beginning and 148.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 285.06ms. Allocated memory is still 196.1MB. Free memory was 148.2MB in the beginning and 135.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2680.55ms. Allocated memory was 196.1MB in the beginning and 252.7MB in the end (delta: 56.6MB). Free memory was 134.6MB in the beginning and 155.4MB in the end (delta: -20.8MB). Peak memory consumption was 37.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.3s, 56 PlacesBefore, 14 PlacesAfterwards, 52 TransitionsBefore, 10 TransitionsAfterwards, 252 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 27 TrivialYvCompositions, 18 ConcurrentYvCompositions, 0 ChoiceCompositions, 45 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 207, independent: 180, independent conditional: 180, independent unconditional: 0, dependent: 27, dependent conditional: 27, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 207, independent: 180, independent conditional: 0, independent unconditional: 180, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 207, independent: 180, independent conditional: 0, independent unconditional: 180, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 207, independent: 180, independent conditional: 0, independent unconditional: 180, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 176, independent: 159, independent conditional: 0, independent unconditional: 159, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 176, independent: 149, independent conditional: 0, independent unconditional: 149, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 27, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 83, independent: 31, independent conditional: 0, independent unconditional: 31, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 207, independent: 21, independent conditional: 0, independent unconditional: 21, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 176, unknown conditional: 0, unknown unconditional: 176] , Statistics on independence cache: Total cache size (in pairs): 281, Positive cache size: 264, Positive conditional cache size: 0, Positive unconditional cache size: 264, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L681] 0 int glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={6:0}, mutex1={3:0}, mutex2={4:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L699] CALL 0 __VERIFIER_assert(glob1 == 5) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, arg={0:0}, cond=0, glob1=0, mutex1={3:0}, mutex2={4:0}] - UnprovableResult [Line: 697]: 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, 81 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-05 23:42:30,656 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...