/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 --traceabstraction.use.on-demand.petri.net.difference true -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 [2022-12-06 01:39:27,874 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 01:39:27,875 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 01:39:27,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 01:39:27,906 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 01:39:27,908 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 01:39:27,911 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 01:39:27,914 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 01:39:27,917 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 01:39:27,920 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 01:39:27,922 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 01:39:27,924 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 01:39:27,924 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 01:39:27,926 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 01:39:27,927 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 01:39:27,930 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 01:39:27,931 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 01:39:27,932 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 01:39:27,933 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 01:39:27,936 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 01:39:27,936 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 01:39:27,938 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 01:39:27,939 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 01:39:27,939 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 01:39:27,941 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-06 01:39:27,967 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 01:39:27,968 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 01:39:27,968 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 01:39:27,971 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 [2022-12-06 01:39:27,995 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 01:39:27,995 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 01:39:27,997 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 01:39:27,997 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 01:39:27,997 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 01:39:27,998 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 01:39:27,998 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 01:39:27,998 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 01:39:27,998 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 01:39:27,998 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 01:39:27,998 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 01:39:27,999 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 01:39:27,999 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 01:39:27,999 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 01:39:27,999 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 01:39:27,999 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 01:39:27,999 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 01:39:27,999 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 01:39:27,999 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 01:39:27,999 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 01:39:27,999 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 01:39:27,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 01:39:28,000 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 01:39:28,000 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 01:39:28,000 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 01:39:28,000 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 01:39:28,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 01:39:28,000 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 01:39:28,000 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 01:39:28,260 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 01:39:28,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 01:39:28,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 01:39:28,279 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 01:39:28,280 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 01:39:28,281 INFO L432 ainManager$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 [2022-12-06 01:39:29,220 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 01:39:29,426 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 01:39:29,426 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i [2022-12-06 01:39:29,448 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d2d4beee/2b214621efd24b12aa7d586fefe2673e/FLAG0cddb747c [2022-12-06 01:39:29,459 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d2d4beee/2b214621efd24b12aa7d586fefe2673e [2022-12-06 01:39:29,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 01:39:29,462 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 01:39:29,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 01:39:29,464 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 01:39:29,466 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 01:39:29,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:39:29" (1/1) ... [2022-12-06 01:39:29,467 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c1565a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:39:29, skipping insertion in model container [2022-12-06 01:39:29,467 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:39:29" (1/1) ... [2022-12-06 01:39:29,471 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 01:39:29,513 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 01:39:29,602 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] [2022-12-06 01:39:29,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 01:39:29,681 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 01:39:29,688 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] [2022-12-06 01:39:29,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 01:39:29,731 INFO L208 MainTranslator]: Completed translation [2022-12-06 01:39:29,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:39:29 WrapperNode [2022-12-06 01:39:29,731 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 01:39:29,732 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 01:39:29,732 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 01:39:29,732 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 01:39:29,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:39:29" (1/1) ... [2022-12-06 01:39:29,744 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:39:29" (1/1) ... [2022-12-06 01:39:29,756 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-12-06 01:39:29,756 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 01:39:29,757 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 01:39:29,757 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 01:39:29,757 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 01:39:29,762 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:39:29" (1/1) ... [2022-12-06 01:39:29,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:39:29" (1/1) ... [2022-12-06 01:39:29,764 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:39:29" (1/1) ... [2022-12-06 01:39:29,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:39:29" (1/1) ... [2022-12-06 01:39:29,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:39:29" (1/1) ... [2022-12-06 01:39:29,767 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:39:29" (1/1) ... [2022-12-06 01:39:29,768 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:39:29" (1/1) ... [2022-12-06 01:39:29,768 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:39:29" (1/1) ... [2022-12-06 01:39:29,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 01:39:29,771 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 01:39:29,771 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 01:39:29,771 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 01:39:29,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:39:29" (1/1) ... [2022-12-06 01:39:29,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 01:39:29,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 01:39:29,805 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 01:39:29,807 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 01:39:29,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 01:39:29,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 01:39:29,836 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-06 01:39:29,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 01:39:29,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 01:39:29,836 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-06 01:39:29,836 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-06 01:39:29,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 01:39:29,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 01:39:29,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 01:39:29,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 01:39:29,837 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 01:39:29,949 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 01:39:29,951 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 01:39:30,095 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 01:39:30,100 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 01:39:30,100 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 01:39:30,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:39:30 BoogieIcfgContainer [2022-12-06 01:39:30,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 01:39:30,103 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 01:39:30,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 01:39:30,105 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 01:39:30,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 01:39:29" (1/3) ... [2022-12-06 01:39:30,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1df64b84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 01:39:30, skipping insertion in model container [2022-12-06 01:39:30,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:39:29" (2/3) ... [2022-12-06 01:39:30,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1df64b84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 01:39:30, skipping insertion in model container [2022-12-06 01:39:30,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:39:30" (3/3) ... [2022-12-06 01:39:30,106 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_1_neg.i [2022-12-06 01:39:30,120 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 01:39:30,121 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 01:39:30,121 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 01:39:30,179 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-06 01:39:30,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 58 transitions, 124 flow [2022-12-06 01:39:30,246 INFO L130 PetriNetUnfolder]: 2/57 cut-off events. [2022-12-06 01:39:30,247 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 01:39:30,250 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. [2022-12-06 01:39:30,250 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 58 transitions, 124 flow [2022-12-06 01:39:30,253 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 43 transitions, 89 flow [2022-12-06 01:39:30,254 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:39:30,278 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 43 transitions, 89 flow [2022-12-06 01:39:30,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 43 transitions, 89 flow [2022-12-06 01:39:30,295 INFO L130 PetriNetUnfolder]: 1/43 cut-off events. [2022-12-06 01:39:30,295 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 01:39:30,295 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. [2022-12-06 01:39:30,296 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 43 transitions, 89 flow [2022-12-06 01:39:30,296 INFO L188 LiptonReduction]: Number of co-enabled transitions 180 [2022-12-06 01:39:32,098 INFO L203 LiptonReduction]: Total number of compositions: 39 [2022-12-06 01:39:32,108 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 01:39:32,112 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;@6a5d894e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 01:39:32,112 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-06 01:39:32,114 INFO L130 PetriNetUnfolder]: 0/4 cut-off events. [2022-12-06 01:39:32,114 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 01:39:32,114 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:39:32,115 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-06 01:39:32,115 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-06 01:39:32,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:39:32,118 INFO L85 PathProgramCache]: Analyzing trace with hash 218122, now seen corresponding path program 1 times [2022-12-06 01:39:32,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:39:32,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436590539] [2022-12-06 01:39:32,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:39:32,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:39:32,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 01:39:32,191 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-06 01:39:32,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 01:39:32,212 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-06 01:39:32,214 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-06 01:39:32,215 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-06 01:39:32,216 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-06 01:39:32,217 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-12-06 01:39:32,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 01:39:32,217 INFO L458 BasicCegarLoop]: Path program histogram: [1] [2022-12-06 01:39:32,221 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 01:39:32,221 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 01:39:32,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 01:39:32 BasicIcfg [2022-12-06 01:39:32,237 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 01:39:32,239 INFO L158 Benchmark]: Toolchain (without parser) took 2776.23ms. Allocated memory was 217.1MB in the beginning and 268.4MB in the end (delta: 51.4MB). Free memory was 192.1MB in the beginning and 160.6MB in the end (delta: 31.5MB). Peak memory consumption was 82.4MB. Max. memory is 8.0GB. [2022-12-06 01:39:32,242 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 217.1MB. Free memory was 193.2MB in the beginning and 193.2MB in the end (delta: 89.0kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 01:39:32,243 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.61ms. Allocated memory is still 217.1MB. Free memory was 191.6MB in the beginning and 172.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-06 01:39:32,243 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.28ms. Allocated memory is still 217.1MB. Free memory was 172.7MB in the beginning and 170.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 01:39:32,244 INFO L158 Benchmark]: Boogie Preprocessor took 13.51ms. Allocated memory is still 217.1MB. Free memory was 170.6MB in the beginning and 169.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 01:39:32,245 INFO L158 Benchmark]: RCFGBuilder took 330.73ms. Allocated memory is still 217.1MB. Free memory was 169.6MB in the beginning and 157.6MB in the end (delta: 12.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-12-06 01:39:32,247 INFO L158 Benchmark]: TraceAbstraction took 2134.96ms. Allocated memory was 217.1MB in the beginning and 268.4MB in the end (delta: 51.4MB). Free memory was 157.0MB in the beginning and 160.6MB in the end (delta: -3.6MB). Peak memory consumption was 47.7MB. Max. memory is 8.0GB. [2022-12-06 01:39:32,250 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 217.1MB. Free memory was 193.2MB in the beginning and 193.2MB in the end (delta: 89.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 267.61ms. Allocated memory is still 217.1MB. Free memory was 191.6MB in the beginning and 172.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.28ms. Allocated memory is still 217.1MB. Free memory was 172.7MB in the beginning and 170.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.51ms. Allocated memory is still 217.1MB. Free memory was 170.6MB in the beginning and 169.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 330.73ms. Allocated memory is still 217.1MB. Free memory was 169.6MB in the beginning and 157.6MB in the end (delta: 12.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 2134.96ms. Allocated memory was 217.1MB in the beginning and 268.4MB in the end (delta: 51.4MB). Free memory was 157.0MB in the beginning and 160.6MB in the end (delta: -3.6MB). Peak memory consumption was 47.7MB. 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: 12, independent: 10, independent conditional: 0, independent unconditional: 10, 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! [2022-12-06 01:39:32,280 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...