/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_18-first-reads_unknown_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 23:41:51,663 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 23:41:51,664 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 23:41:51,692 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 23:41:51,692 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 23:41:51,707 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 23:41:51,710 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 23:41:51,713 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 23:41:51,716 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 23:41:51,721 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 23:41:51,721 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 23:41:51,723 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 23:41:51,723 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 23:41:51,725 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 23:41:51,726 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 23:41:51,729 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 23:41:51,729 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 23:41:51,730 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 23:41:51,733 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 23:41:51,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 23:41:51,738 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 23:41:51,740 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 23:41:51,740 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 23:41:51,741 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 23:41:51,747 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-05 23:41:51,754 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 23:41:51,754 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 23:41:51,755 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 23:41:51,755 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 23:41:51,782 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 23:41:51,782 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 23:41:51,783 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 23:41:51,783 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 23:41:51,783 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 23:41:51,783 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 23:41:51,783 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 23:41:51,783 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 23:41:51,783 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 23:41:51,784 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 23:41:51,784 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 23:41:51,784 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 23:41:51,784 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 23:41:51,784 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 23:41:51,784 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 23:41:51,784 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 23:41:51,784 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 23:41:51,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 23:41:51,784 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 23:41:51,784 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 23:41:51,785 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 23:41:51,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 23:41:51,785 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 23:41:51,785 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 23:41:51,785 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 23:41:51,785 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 23:41:51,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 23:41:51,785 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-05 23:41:51,785 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 23:41:52,058 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 23:41:52,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 23:41:52,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 23:41:52,085 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 23:41:52,085 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 23:41:52,086 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i [2022-12-05 23:41:53,067 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 23:41:53,272 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 23:41:53,272 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i [2022-12-05 23:41:53,279 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3660c951/c35a6e3e45e349e2a5a68ecb5d033f45/FLAGeca0e08d3 [2022-12-05 23:41:53,289 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3660c951/c35a6e3e45e349e2a5a68ecb5d033f45 [2022-12-05 23:41:53,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 23:41:53,291 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 23:41:53,292 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 23:41:53,292 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 23:41:53,294 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 23:41:53,294 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:41:53" (1/1) ... [2022-12-05 23:41:53,295 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c11b3ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:41:53, skipping insertion in model container [2022-12-05 23:41:53,295 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:41:53" (1/1) ... [2022-12-05 23:41:53,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 23:41:53,332 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 23:41:53,458 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_18-first-reads_unknown_1_neg.i[1097,1110] [2022-12-05 23:41:53,593 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 23:41:53,601 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 23:41:53,610 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_18-first-reads_unknown_1_neg.i[1097,1110] [2022-12-05 23:41:53,635 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 23:41:53,665 INFO L208 MainTranslator]: Completed translation [2022-12-05 23:41:53,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:41:53 WrapperNode [2022-12-05 23:41:53,666 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 23:41:53,666 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 23:41:53,667 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 23:41:53,667 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 23:41:53,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:41:53" (1/1) ... [2022-12-05 23:41:53,693 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:41:53" (1/1) ... [2022-12-05 23:41:53,710 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-12-05 23:41:53,710 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 23:41:53,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 23:41:53,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 23:41:53,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 23:41:53,717 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:41:53" (1/1) ... [2022-12-05 23:41:53,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:41:53" (1/1) ... [2022-12-05 23:41:53,721 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:41:53" (1/1) ... [2022-12-05 23:41:53,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:41:53" (1/1) ... [2022-12-05 23:41:53,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:41:53" (1/1) ... [2022-12-05 23:41:53,734 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:41:53" (1/1) ... [2022-12-05 23:41:53,735 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:41:53" (1/1) ... [2022-12-05 23:41:53,736 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:41:53" (1/1) ... [2022-12-05 23:41:53,737 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 23:41:53,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 23:41:53,737 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 23:41:53,737 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 23:41:53,738 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:41:53" (1/1) ... [2022-12-05 23:41:53,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 23:41:53,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 23:41:53,758 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 23:41:53,785 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 23:41:53,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 23:41:53,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 23:41:53,805 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-05 23:41:53,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 23:41:53,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 23:41:53,806 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-05 23:41:53,806 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-05 23:41:53,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 23:41:53,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 23:41:53,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 23:41:53,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 23:41:53,807 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 23:41:53,917 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 23:41:53,918 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 23:41:54,010 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 23:41:54,014 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 23:41:54,014 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 23:41:54,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:41:54 BoogieIcfgContainer [2022-12-05 23:41:54,016 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 23:41:54,017 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 23:41:54,017 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 23:41:54,019 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 23:41:54,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 11:41:53" (1/3) ... [2022-12-05 23:41:54,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57686ae1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 11:41:54, skipping insertion in model container [2022-12-05 23:41:54,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:41:53" (2/3) ... [2022-12-05 23:41:54,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57686ae1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 11:41:54, skipping insertion in model container [2022-12-05 23:41:54,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:41:54" (3/3) ... [2022-12-05 23:41:54,020 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_1_neg.i [2022-12-05 23:41:54,032 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 23:41:54,032 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 23:41:54,032 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 23:41:54,058 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-05 23:41:54,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 58 transitions, 124 flow [2022-12-05 23:41:54,102 INFO L130 PetriNetUnfolder]: 2/57 cut-off events. [2022-12-05 23:41:54,102 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 23:41:54,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 57 events. 2/57 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2022-12-05 23:41:54,104 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 58 transitions, 124 flow [2022-12-05 23:41:54,106 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 43 transitions, 89 flow [2022-12-05 23:41:54,107 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:41:54,118 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 43 transitions, 89 flow [2022-12-05 23:41:54,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 43 transitions, 89 flow [2022-12-05 23:41:54,128 INFO L130 PetriNetUnfolder]: 1/43 cut-off events. [2022-12-05 23:41:54,129 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 23:41:54,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 43 events. 1/43 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 15 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2022-12-05 23:41:54,130 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 43 transitions, 89 flow [2022-12-05 23:41:54,130 INFO L188 LiptonReduction]: Number of co-enabled transitions 180 [2022-12-05 23:41:55,946 INFO L203 LiptonReduction]: Total number of compositions: 39 [2022-12-05 23:41:55,956 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 23:41:55,960 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;@4d9247bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 23:41:55,960 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-05 23:41:55,962 INFO L130 PetriNetUnfolder]: 0/4 cut-off events. [2022-12-05 23:41:55,962 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 23:41:55,962 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 23:41:55,962 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-05 23:41:55,963 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-05 23:41:55,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 23:41:55,966 INFO L85 PathProgramCache]: Analyzing trace with hash 218122, now seen corresponding path program 1 times [2022-12-05 23:41:55,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 23:41:55,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324507185] [2022-12-05 23:41:55,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 23:41:55,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 23:41:56,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-05 23:41:56,057 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-05 23:41:56,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-05 23:41:56,080 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-05 23:41:56,081 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-05 23:41:56,082 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-05 23:41:56,083 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-05 23:41:56,083 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-12-05 23:41:56,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 23:41:56,084 INFO L458 BasicCegarLoop]: Path program histogram: [1] [2022-12-05 23:41:56,088 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 23:41:56,088 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 23:41:56,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 11:41:56 BasicIcfg [2022-12-05 23:41:56,100 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 23:41:56,101 INFO L158 Benchmark]: Toolchain (without parser) took 2809.17ms. Allocated memory was 192.9MB in the beginning and 246.4MB in the end (delta: 53.5MB). Free memory was 168.3MB in the beginning and 202.3MB in the end (delta: -33.9MB). Peak memory consumption was 20.8MB. Max. memory is 8.0GB. [2022-12-05 23:41:56,104 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 192.9MB. Free memory is still 169.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 23:41:56,105 INFO L158 Benchmark]: CACSL2BoogieTranslator took 374.03ms. Allocated memory is still 192.9MB. Free memory was 168.3MB in the beginning and 149.7MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-05 23:41:56,105 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.96ms. Allocated memory is still 192.9MB. Free memory was 149.7MB in the beginning and 147.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 23:41:56,106 INFO L158 Benchmark]: Boogie Preprocessor took 25.86ms. Allocated memory is still 192.9MB. Free memory was 147.6MB in the beginning and 146.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-05 23:41:56,106 INFO L158 Benchmark]: RCFGBuilder took 278.53ms. Allocated memory is still 192.9MB. Free memory was 146.0MB in the beginning and 134.0MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-05 23:41:56,107 INFO L158 Benchmark]: TraceAbstraction took 2082.78ms. Allocated memory was 192.9MB in the beginning and 246.4MB in the end (delta: 53.5MB). Free memory was 133.5MB in the beginning and 202.3MB in the end (delta: -68.8MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 23:41:56,111 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 192.9MB. Free memory is still 169.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 374.03ms. Allocated memory is still 192.9MB. Free memory was 168.3MB in the beginning and 149.7MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 43.96ms. Allocated memory is still 192.9MB. Free memory was 149.7MB in the beginning and 147.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.86ms. Allocated memory is still 192.9MB. Free memory was 147.6MB in the beginning and 146.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 278.53ms. Allocated memory is still 192.9MB. Free memory was 146.0MB in the beginning and 134.0MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2082.78ms. Allocated memory was 192.9MB in the beginning and 246.4MB in the end (delta: 53.5MB). Free memory was 133.5MB in the beginning and 202.3MB in the end (delta: -68.8MB). 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: 1.8s, 46 PlacesBefore, 9 PlacesAfterwards, 43 TransitionsBefore, 5 TransitionsAfterwards, 180 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 20 TrivialYvCompositions, 18 ConcurrentYvCompositions, 1 ChoiceCompositions, 39 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 108, independent: 107, independent conditional: 107, independent unconditional: 0, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 108, independent: 107, independent conditional: 0, independent unconditional: 107, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 108, independent: 107, independent conditional: 0, independent unconditional: 107, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 108, independent: 107, independent conditional: 0, independent unconditional: 107, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 100, independent: 99, independent conditional: 0, independent unconditional: 99, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 100, independent: 95, independent conditional: 0, independent unconditional: 95, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 15, independent: 14, independent conditional: 0, independent unconditional: 14, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 108, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 100, unknown conditional: 0, unknown unconditional: 100] , Statistics on independence cache: Total cache size (in pairs): 186, Positive cache size: 185, Positive conditional cache size: 0, Positive unconditional cache size: 185, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, 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: [L682] 0 int glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={5:0}, mutex1={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND FALSE 1 !(t == 42) [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(!(t == 0)) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=0, mutex1={3:0}] - UnprovableResult [Line: 698]: 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, 79 locations, 3 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: 2.0s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 3 NumberOfCodeBlocks, 3 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 23:41:56,150 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...