/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-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 16:58:54,643 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 16:58:54,644 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 16:58:54,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 16:58:54,695 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 16:58:54,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 16:58:54,701 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 16:58:54,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 16:58:54,709 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 16:58:54,714 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 16:58:54,714 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 16:58:54,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 16:58:54,715 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 16:58:54,716 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 16:58:54,717 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 16:58:54,718 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 16:58:54,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 16:58:54,719 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 16:58:54,720 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 16:58:54,722 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 16:58:54,723 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 16:58:54,727 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 16:58:54,728 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 16:58:54,730 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 16:58:54,741 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 16:58:54,741 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 16:58:54,742 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 16:58:54,743 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 16:58:54,743 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 16:58:54,744 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-12-06 16:58:54,754 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 16:58:54,755 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 16:58:54,756 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 16:58:54,757 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-NoLbe.epf [2022-12-06 16:58:54,790 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 16:58:54,790 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 16:58:54,792 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 16:58:54,792 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 16:58:54,793 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 16:58:54,793 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 16:58:54,793 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 16:58:54,794 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 16:58:54,794 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 16:58:54,794 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 16:58:54,795 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 16:58:54,795 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 16:58:54,795 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 16:58:54,795 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 16:58:54,795 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 16:58:54,795 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 16:58:54,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 16:58:54,796 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 16:58:54,796 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 16:58:54,796 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 16:58:54,796 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 16:58:54,796 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 16:58:54,796 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 16:58:54,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:58:54,797 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 16:58:54,797 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 16:58:54,797 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 16:58:54,797 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 16:58:54,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 16:58:54,797 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 16:58:54,797 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 16:58:54,798 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 16:58:55,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 16:58:55,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 16:58:55,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 16:58:55,103 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 16:58:55,104 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 16:58:55,105 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2022-12-06 16:58:56,198 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 16:58:56,466 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 16:58:56,466 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2022-12-06 16:58:56,481 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/816a90c68/25069fe627e84d3995522277475bdd60/FLAGdf0ac9494 [2022-12-06 16:58:56,493 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/816a90c68/25069fe627e84d3995522277475bdd60 [2022-12-06 16:58:56,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 16:58:56,497 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 16:58:56,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 16:58:56,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 16:58:56,500 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 16:58:56,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:58:56" (1/1) ... [2022-12-06 16:58:56,502 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5adaf626 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:56, skipping insertion in model container [2022-12-06 16:58:56,502 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:58:56" (1/1) ... [2022-12-06 16:58:56,508 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 16:58:56,542 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 16:58:56,662 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/36-apron_17-traces-rpb-litmus_unknown_1_neg.i[1098,1111] [2022-12-06 16:58:56,813 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:58:56,828 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 16:58:56,842 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/36-apron_17-traces-rpb-litmus_unknown_1_neg.i[1098,1111] [2022-12-06 16:58:56,879 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:58:56,921 INFO L208 MainTranslator]: Completed translation [2022-12-06 16:58:56,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:56 WrapperNode [2022-12-06 16:58:56,923 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 16:58:56,924 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 16:58:56,924 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 16:58:56,924 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 16:58:56,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:56" (1/1) ... [2022-12-06 16:58:56,944 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:56" (1/1) ... [2022-12-06 16:58:56,966 INFO L138 Inliner]: procedures = 163, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2022-12-06 16:58:56,967 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 16:58:56,967 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 16:58:56,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 16:58:56,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 16:58:56,974 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:56" (1/1) ... [2022-12-06 16:58:56,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:56" (1/1) ... [2022-12-06 16:58:56,976 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:56" (1/1) ... [2022-12-06 16:58:56,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:56" (1/1) ... [2022-12-06 16:58:56,980 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:56" (1/1) ... [2022-12-06 16:58:56,981 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:56" (1/1) ... [2022-12-06 16:58:56,982 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:56" (1/1) ... [2022-12-06 16:58:56,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:56" (1/1) ... [2022-12-06 16:58:56,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 16:58:56,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 16:58:56,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 16:58:56,986 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 16:58:56,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:56" (1/1) ... [2022-12-06 16:58:56,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:58:57,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:58:57,015 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) [2022-12-06 16:58:57,027 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 [2022-12-06 16:58:57,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 16:58:57,058 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-06 16:58:57,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 16:58:57,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 16:58:57,058 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-06 16:58:57,059 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-06 16:58:57,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 16:58:57,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 16:58:57,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 16:58:57,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 16:58:57,064 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 16:58:57,163 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 16:58:57,172 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 16:58:57,379 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 16:58:57,385 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 16:58:57,385 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 16:58:57,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:58:57 BoogieIcfgContainer [2022-12-06 16:58:57,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 16:58:57,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 16:58:57,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 16:58:57,392 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 16:58:57,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:58:56" (1/3) ... [2022-12-06 16:58:57,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53cdb1c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:58:57, skipping insertion in model container [2022-12-06 16:58:57,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:56" (2/3) ... [2022-12-06 16:58:57,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53cdb1c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:58:57, skipping insertion in model container [2022-12-06 16:58:57,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:58:57" (3/3) ... [2022-12-06 16:58:57,394 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2022-12-06 16:58:57,411 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 16:58:57,411 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 16:58:57,411 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 16:58:57,446 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-06 16:58:57,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 72 transitions, 149 flow [2022-12-06 16:58:57,510 INFO L130 PetriNetUnfolder]: 2/71 cut-off events. [2022-12-06 16:58:57,510 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:58:57,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2022-12-06 16:58:57,514 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 72 transitions, 149 flow [2022-12-06 16:58:57,517 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 61 transitions, 125 flow [2022-12-06 16:58:57,526 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 16:58:57,531 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=PETRI_NET, 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;@3a850954, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 16:58:57,532 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-06 16:58:57,549 INFO L130 PetriNetUnfolder]: 1/60 cut-off events. [2022-12-06 16:58:57,549 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:58:57,549 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:58:57,550 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:58:57,550 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 16:58:57,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:58:57,555 INFO L85 PathProgramCache]: Analyzing trace with hash -632809841, now seen corresponding path program 1 times [2022-12-06 16:58:57,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:58:57,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863806132] [2022-12-06 16:58:57,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:58:57,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:58:57,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:58:58,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:58:58,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:58:58,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863806132] [2022-12-06 16:58:58,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863806132] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:58:58,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:58:58,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 16:58:58,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739005139] [2022-12-06 16:58:58,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:58:58,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 16:58:58,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:58:58,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 16:58:58,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-06 16:58:58,078 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 72 [2022-12-06 16:58:58,081 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 61 transitions, 125 flow. Second operand has 6 states, 6 states have (on average 59.5) internal successors, (357), 6 states have internal predecessors, (357), 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) [2022-12-06 16:58:58,081 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:58:58,081 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 72 [2022-12-06 16:58:58,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:58:58,168 INFO L130 PetriNetUnfolder]: 9/118 cut-off events. [2022-12-06 16:58:58,168 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 16:58:58,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 118 events. 9/118 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 287 event pairs, 0 based on Foata normal form. 2/117 useless extension candidates. Maximal degree in co-relation 121. Up to 15 conditions per place. [2022-12-06 16:58:58,170 INFO L137 encePairwiseOnDemand]: 65/72 looper letters, 13 selfloop transitions, 3 changer transitions 8/73 dead transitions. [2022-12-06 16:58:58,170 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 73 transitions, 195 flow [2022-12-06 16:58:58,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-06 16:58:58,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-06 16:58:58,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 372 transitions. [2022-12-06 16:58:58,183 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8611111111111112 [2022-12-06 16:58:58,187 INFO L294 CegarLoopForPetriNet]: 64 programPoint places, 5 predicate places. [2022-12-06 16:58:58,187 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 73 transitions, 195 flow [2022-12-06 16:58:58,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.5) internal successors, (357), 6 states have internal predecessors, (357), 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) [2022-12-06 16:58:58,188 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:58:58,188 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:58:58,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 16:58:58,189 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 16:58:58,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:58:58,190 INFO L85 PathProgramCache]: Analyzing trace with hash -2015757773, now seen corresponding path program 1 times [2022-12-06 16:58:58,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:58:58,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407325513] [2022-12-06 16:58:58,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:58:58,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:58:58,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 16:58:58,222 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-06 16:58:58,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 16:58:58,276 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-06 16:58:58,276 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-06 16:58:58,279 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-06 16:58:58,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-06 16:58:58,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 16:58:58,284 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-06 16:58:58,295 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 16:58:58,295 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 16:58:58,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:58:58 BasicIcfg [2022-12-06 16:58:58,346 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 16:58:58,351 INFO L158 Benchmark]: Toolchain (without parser) took 1850.29ms. Allocated memory was 203.4MB in the beginning and 244.3MB in the end (delta: 40.9MB). Free memory was 179.1MB in the beginning and 196.4MB in the end (delta: -17.3MB). Peak memory consumption was 24.3MB. Max. memory is 8.0GB. [2022-12-06 16:58:58,351 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 203.4MB. Free memory is still 180.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 16:58:58,352 INFO L158 Benchmark]: CACSL2BoogieTranslator took 425.64ms. Allocated memory is still 203.4MB. Free memory was 178.8MB in the beginning and 159.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-06 16:58:58,352 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.71ms. Allocated memory is still 203.4MB. Free memory was 159.9MB in the beginning and 157.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 16:58:58,353 INFO L158 Benchmark]: Boogie Preprocessor took 17.91ms. Allocated memory is still 203.4MB. Free memory was 157.8MB in the beginning and 156.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 16:58:58,354 INFO L158 Benchmark]: RCFGBuilder took 401.60ms. Allocated memory is still 203.4MB. Free memory was 156.2MB in the beginning and 143.1MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-06 16:58:58,354 INFO L158 Benchmark]: TraceAbstraction took 957.25ms. Allocated memory was 203.4MB in the beginning and 244.3MB in the end (delta: 40.9MB). Free memory was 142.6MB in the beginning and 196.4MB in the end (delta: -53.8MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 16:58:58,356 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 203.4MB. Free memory is still 180.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 425.64ms. Allocated memory is still 203.4MB. Free memory was 178.8MB in the beginning and 159.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 42.71ms. Allocated memory is still 203.4MB. Free memory was 159.9MB in the beginning and 157.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 17.91ms. Allocated memory is still 203.4MB. Free memory was 157.8MB in the beginning and 156.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 401.60ms. Allocated memory is still 203.4MB. Free memory was 156.2MB in the beginning and 143.1MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 957.25ms. Allocated memory was 203.4MB in the beginning and 244.3MB in the end (delta: 40.9MB). Free memory was 142.6MB in the beginning and 196.4MB in the end (delta: -53.8MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 int g = 42; VAL [g=42] [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [A={3:0}, g=42] [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [A={3:0}, B={4:0}, g=42] [L694] 0 int r = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=1, A={3:0}, B={4:0}, g=42, r=1] [L695] 0 int t; VAL [A={3:0}, B={4:0}, g=42, r=1] [L696] 0 pthread_t id; VAL [A={3:0}, B={4:0}, g=42, id={5:0}, r=1] [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, arg={0:0}, B={4:0}, g=42, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, r=1] [L700] COND TRUE 0 \read(r) VAL [A={3:0}, arg={0:0}, B={4:0}, g=42, id={5:0}, r=1] [L701] 0 g = 17 VAL [A={3:0}, arg={0:0}, B={4:0}, g=17, id={5:0}, r=1] [L705] 0 t = g [L706] CALL 0 __VERIFIER_assert(!(t == 17)) [L19] COND TRUE 0 !(cond) VAL [\old(cond)=0, A={3:0}, arg={0:0}, B={4:0}, cond=0, g=17] [L19] 0 reach_error() VAL [\old(cond)=0, A={3:0}, arg={0:0}, B={4:0}, cond=0, g=17] - 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, 83 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: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 41 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 11 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=195occurred in iteration=1, 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 122 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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! [2022-12-06 16:58:58,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...