/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_67-pthread_cond_wait_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 03:41:19,592 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 03:41:19,593 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 03:41:19,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 03:41:19,623 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 03:41:19,625 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 03:41:19,629 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 03:41:19,632 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 03:41:19,636 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 03:41:19,641 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 03:41:19,641 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 03:41:19,642 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 03:41:19,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 03:41:19,642 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 03:41:19,643 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 03:41:19,644 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 03:41:19,644 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 03:41:19,645 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 03:41:19,646 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 03:41:19,647 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 03:41:19,647 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 03:41:19,650 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 03:41:19,651 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 03:41:19,651 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 03:41:19,653 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-13 03:41:19,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 03:41:19,659 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 03:41:19,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 03:41:19,664 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 [2022-12-13 03:41:19,691 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 03:41:19,692 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 03:41:19,693 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 03:41:19,693 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 03:41:19,693 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 03:41:19,694 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 03:41:19,694 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 03:41:19,694 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 03:41:19,694 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 03:41:19,694 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 03:41:19,695 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 03:41:19,695 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 03:41:19,695 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 03:41:19,695 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 03:41:19,696 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 03:41:19,696 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 03:41:19,696 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 03:41:19,696 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 03:41:19,696 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 03:41:19,696 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 03:41:19,696 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 03:41:19,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 03:41:19,696 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 03:41:19,696 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 03:41:19,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 03:41:19,697 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 03:41:19,697 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 03:41:19,697 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 03:41:19,697 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-13 03:41:19,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 03:41:19,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 03:41:19,996 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 03:41:19,996 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 03:41:19,997 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 03:41:19,998 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2022-12-13 03:41:21,043 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 03:41:21,414 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 03:41:21,415 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2022-12-13 03:41:21,437 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00b0b4030/09849ef26a3a4ab6ae52940167208b35/FLAGe3b9514ac [2022-12-13 03:41:21,449 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00b0b4030/09849ef26a3a4ab6ae52940167208b35 [2022-12-13 03:41:21,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 03:41:21,452 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 03:41:21,452 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 03:41:21,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 03:41:21,454 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 03:41:21,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:41:21" (1/1) ... [2022-12-13 03:41:21,456 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d8ffc9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:21, skipping insertion in model container [2022-12-13 03:41:21,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:41:21" (1/1) ... [2022-12-13 03:41:21,461 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 03:41:21,510 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 03:41:21,642 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_67-pthread_cond_wait_unknown_1_pos.i[1103,1116] [2022-12-13 03:41:21,879 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-13 03:41:21,880 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 03:41:21,889 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 03:41:21,900 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_67-pthread_cond_wait_unknown_1_pos.i[1103,1116] [2022-12-13 03:41:21,945 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-13 03:41:21,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 03:41:22,027 INFO L208 MainTranslator]: Completed translation [2022-12-13 03:41:22,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:22 WrapperNode [2022-12-13 03:41:22,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 03:41:22,028 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 03:41:22,028 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 03:41:22,029 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 03:41:22,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:22" (1/1) ... [2022-12-13 03:41:22,064 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:22" (1/1) ... [2022-12-13 03:41:22,087 INFO L138 Inliner]: procedures = 354, calls = 38, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2022-12-13 03:41:22,088 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 03:41:22,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 03:41:22,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 03:41:22,089 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 03:41:22,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:22" (1/1) ... [2022-12-13 03:41:22,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:22" (1/1) ... [2022-12-13 03:41:22,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:22" (1/1) ... [2022-12-13 03:41:22,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:22" (1/1) ... [2022-12-13 03:41:22,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:22" (1/1) ... [2022-12-13 03:41:22,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:22" (1/1) ... [2022-12-13 03:41:22,109 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:22" (1/1) ... [2022-12-13 03:41:22,111 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:22" (1/1) ... [2022-12-13 03:41:22,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 03:41:22,116 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 03:41:22,116 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 03:41:22,116 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 03:41:22,116 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:22" (1/1) ... [2022-12-13 03:41:22,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 03:41:22,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 03:41:22,154 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) [2022-12-13 03:41:22,160 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 [2022-12-13 03:41:22,180 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-12-13 03:41:22,180 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2022-12-13 03:41:22,180 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2022-12-13 03:41:22,180 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2022-12-13 03:41:22,180 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2022-12-13 03:41:22,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 03:41:22,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 03:41:22,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 03:41:22,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 03:41:22,181 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 03:41:22,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 03:41:22,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 03:41:22,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 03:41:22,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 03:41:22,182 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 03:41:22,444 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 03:41:22,446 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 03:41:22,576 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 03:41:22,585 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 03:41:22,585 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 03:41:22,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:41:22 BoogieIcfgContainer [2022-12-13 03:41:22,587 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 03:41:22,590 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 03:41:22,590 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 03:41:22,592 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 03:41:22,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:41:21" (1/3) ... [2022-12-13 03:41:22,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e175df4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:41:22, skipping insertion in model container [2022-12-13 03:41:22,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:22" (2/3) ... [2022-12-13 03:41:22,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e175df4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:41:22, skipping insertion in model container [2022-12-13 03:41:22,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:41:22" (3/3) ... [2022-12-13 03:41:22,594 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2022-12-13 03:41:22,606 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 03:41:22,606 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 03:41:22,607 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 03:41:22,670 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 03:41:22,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 88 transitions, 192 flow [2022-12-13 03:41:22,738 INFO L130 PetriNetUnfolder]: 1/86 cut-off events. [2022-12-13 03:41:22,739 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 03:41:22,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 86 events. 1/86 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2022-12-13 03:41:22,742 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 88 transitions, 192 flow [2022-12-13 03:41:22,746 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 70 transitions, 149 flow [2022-12-13 03:41:22,748 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:41:22,763 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 70 transitions, 149 flow [2022-12-13 03:41:22,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 70 transitions, 149 flow [2022-12-13 03:41:22,789 INFO L130 PetriNetUnfolder]: 0/70 cut-off events. [2022-12-13 03:41:22,790 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 03:41:22,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 70 events. 0/70 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 40 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-12-13 03:41:22,792 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 70 transitions, 149 flow [2022-12-13 03:41:22,792 INFO L226 LiptonReduction]: Number of co-enabled transitions 552 [2022-12-13 03:41:25,799 INFO L241 LiptonReduction]: Total number of compositions: 59 [2022-12-13 03:41:25,811 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 03:41:25,816 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;@6d035f09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 03:41:25,816 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 03:41:25,819 INFO L130 PetriNetUnfolder]: 0/20 cut-off events. [2022-12-13 03:41:25,820 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 03:41:25,820 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:41:25,820 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 03:41:25,821 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 03:41:25,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:41:25,825 INFO L85 PathProgramCache]: Analyzing trace with hash 341228257, now seen corresponding path program 1 times [2022-12-13 03:41:25,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:41:25,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224221513] [2022-12-13 03:41:25,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:41:25,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:41:25,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:41:26,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:41:26,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:41:26,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224221513] [2022-12-13 03:41:26,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224221513] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:41:26,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:41:26,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 03:41:26,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739237711] [2022-12-13 03:41:26,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:41:26,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 03:41:26,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:41:26,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 03:41:26,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 03:41:26,211 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2022-12-13 03:41:26,212 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 24 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-12-13 03:41:26,212 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:41:26,212 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2022-12-13 03:41:26,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:41:26,290 INFO L130 PetriNetUnfolder]: 119/257 cut-off events. [2022-12-13 03:41:26,290 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-13 03:41:26,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 526 conditions, 257 events. 119/257 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1201 event pairs, 75 based on Foata normal form. 23/168 useless extension candidates. Maximal degree in co-relation 494. Up to 141 conditions per place. [2022-12-13 03:41:26,292 INFO L137 encePairwiseOnDemand]: 17/24 looper letters, 17 selfloop transitions, 6 changer transitions 2/29 dead transitions. [2022-12-13 03:41:26,292 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 29 transitions, 120 flow [2022-12-13 03:41:26,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 03:41:26,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 03:41:26,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 38 transitions. [2022-12-13 03:41:26,300 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5277777777777778 [2022-12-13 03:41:26,303 INFO L295 CegarLoopForPetriNet]: 31 programPoint places, 2 predicate places. [2022-12-13 03:41:26,303 INFO L82 GeneralOperation]: Start removeDead. Operand has 33 places, 29 transitions, 120 flow [2022-12-13 03:41:26,304 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 27 transitions, 112 flow [2022-12-13 03:41:26,307 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:41:26,308 INFO L89 Accepts]: Start accepts. Operand has 31 places, 27 transitions, 112 flow [2022-12-13 03:41:26,309 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:41:26,310 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:41:26,310 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 27 transitions, 112 flow [2022-12-13 03:41:26,317 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 27 transitions, 112 flow [2022-12-13 03:41:26,317 INFO L226 LiptonReduction]: Number of co-enabled transitions 50 [2022-12-13 03:41:26,375 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 03:41:26,378 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 71 [2022-12-13 03:41:26,381 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 27 transitions, 112 flow [2022-12-13 03:41:26,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-12-13 03:41:26,381 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:41:26,381 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:41:26,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 03:41:26,381 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 03:41:26,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:41:26,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1988141108, now seen corresponding path program 1 times [2022-12-13 03:41:26,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:41:26,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401263715] [2022-12-13 03:41:26,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:41:26,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:41:26,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:41:26,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:41:26,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:41:26,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401263715] [2022-12-13 03:41:26,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401263715] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:41:26,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:41:26,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 03:41:26,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539034274] [2022-12-13 03:41:26,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:41:26,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 03:41:26,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:41:26,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 03:41:26,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 03:41:26,501 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 23 [2022-12-13 03:41:26,501 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 27 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2022-12-13 03:41:26,501 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:41:26,501 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 23 [2022-12-13 03:41:26,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:41:26,576 INFO L130 PetriNetUnfolder]: 48/124 cut-off events. [2022-12-13 03:41:26,576 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-12-13 03:41:26,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 384 conditions, 124 events. 48/124 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 579 event pairs, 12 based on Foata normal form. 18/97 useless extension candidates. Maximal degree in co-relation 350. Up to 74 conditions per place. [2022-12-13 03:41:26,577 INFO L137 encePairwiseOnDemand]: 16/23 looper letters, 14 selfloop transitions, 3 changer transitions 18/36 dead transitions. [2022-12-13 03:41:26,577 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 36 transitions, 223 flow [2022-12-13 03:41:26,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 03:41:26,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 03:41:26,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 37 transitions. [2022-12-13 03:41:26,580 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5362318840579711 [2022-12-13 03:41:26,581 INFO L295 CegarLoopForPetriNet]: 31 programPoint places, 2 predicate places. [2022-12-13 03:41:26,581 INFO L82 GeneralOperation]: Start removeDead. Operand has 33 places, 36 transitions, 223 flow [2022-12-13 03:41:26,581 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 21 places, 18 transitions, 114 flow [2022-12-13 03:41:26,582 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:41:26,582 INFO L89 Accepts]: Start accepts. Operand has 21 places, 18 transitions, 114 flow [2022-12-13 03:41:26,583 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:41:26,583 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:41:26,583 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 21 places, 18 transitions, 114 flow [2022-12-13 03:41:26,584 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 21 places, 18 transitions, 114 flow [2022-12-13 03:41:26,584 INFO L226 LiptonReduction]: Number of co-enabled transitions 6 [2022-12-13 03:41:26,585 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:41:26,586 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 4 [2022-12-13 03:41:26,586 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 18 transitions, 114 flow [2022-12-13 03:41:26,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2022-12-13 03:41:26,586 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:41:26,586 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:41:26,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 03:41:26,587 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 03:41:26,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:41:26,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1988148876, now seen corresponding path program 1 times [2022-12-13 03:41:26,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:41:26,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318469894] [2022-12-13 03:41:26,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:41:26,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:41:26,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 03:41:26,613 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 03:41:26,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 03:41:26,659 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 03:41:26,660 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 03:41:26,660 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-13 03:41:26,665 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-13 03:41:26,665 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-13 03:41:26,665 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-12-13 03:41:26,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 03:41:26,665 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-13 03:41:26,669 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 03:41:26,669 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 03:41:26,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 03:41:26 BasicIcfg [2022-12-13 03:41:26,696 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 03:41:26,697 INFO L158 Benchmark]: Toolchain (without parser) took 5244.88ms. Allocated memory was 195.0MB in the beginning and 234.9MB in the end (delta: 39.8MB). Free memory was 169.1MB in the beginning and 189.4MB in the end (delta: -20.3MB). Peak memory consumption was 20.0MB. Max. memory is 8.0GB. [2022-12-13 03:41:26,697 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 195.0MB. Free memory was 171.0MB in the beginning and 170.9MB in the end (delta: 152.1kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 03:41:26,699 INFO L158 Benchmark]: CACSL2BoogieTranslator took 575.14ms. Allocated memory is still 195.0MB. Free memory was 168.6MB in the beginning and 130.1MB in the end (delta: 38.5MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. [2022-12-13 03:41:26,699 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.60ms. Allocated memory is still 195.0MB. Free memory was 130.1MB in the beginning and 127.1MB in the end (delta: 2.9MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-13 03:41:26,699 INFO L158 Benchmark]: Boogie Preprocessor took 25.96ms. Allocated memory is still 195.0MB. Free memory was 127.1MB in the beginning and 125.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-13 03:41:26,701 INFO L158 Benchmark]: RCFGBuilder took 471.67ms. Allocated memory is still 195.0MB. Free memory was 125.0MB in the beginning and 104.6MB in the end (delta: 20.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-12-13 03:41:26,701 INFO L158 Benchmark]: TraceAbstraction took 4106.51ms. Allocated memory was 195.0MB in the beginning and 234.9MB in the end (delta: 39.8MB). Free memory was 103.5MB in the beginning and 189.4MB in the end (delta: -85.9MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 03:41:26,702 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 195.0MB. Free memory was 171.0MB in the beginning and 170.9MB in the end (delta: 152.1kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 575.14ms. Allocated memory is still 195.0MB. Free memory was 168.6MB in the beginning and 130.1MB in the end (delta: 38.5MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 59.60ms. Allocated memory is still 195.0MB. Free memory was 130.1MB in the beginning and 127.1MB in the end (delta: 2.9MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.96ms. Allocated memory is still 195.0MB. Free memory was 127.1MB in the beginning and 125.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 471.67ms. Allocated memory is still 195.0MB. Free memory was 125.0MB in the beginning and 104.6MB in the end (delta: 20.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 4106.51ms. Allocated memory was 195.0MB in the beginning and 234.9MB in the end (delta: 39.8MB). Free memory was 103.5MB in the beginning and 189.4MB in the end (delta: -85.9MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.0s, 77 PlacesBefore, 31 PlacesAfterwards, 70 TransitionsBefore, 24 TransitionsAfterwards, 552 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 34 TrivialYvCompositions, 25 ConcurrentYvCompositions, 0 ChoiceCompositions, 59 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 560, independent: 507, independent conditional: 507, independent unconditional: 0, dependent: 53, dependent conditional: 53, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 560, independent: 507, independent conditional: 0, independent unconditional: 507, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 560, independent: 507, independent conditional: 0, independent unconditional: 507, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 560, independent: 507, independent conditional: 0, independent unconditional: 507, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 412, independent: 393, independent conditional: 0, independent unconditional: 393, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 412, independent: 382, independent conditional: 0, independent unconditional: 382, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 30, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 49, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 560, independent: 114, independent conditional: 0, independent unconditional: 114, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 412, unknown conditional: 0, unknown unconditional: 412] , Statistics on independence cache: Total cache size (in pairs): 722, Positive cache size: 703, Positive conditional cache size: 0, Positive unconditional cache size: 703, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 31 PlacesBefore, 31 PlacesAfterwards, 27 TransitionsBefore, 27 TransitionsAfterwards, 50 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, independent: 3, independent conditional: 3, 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: 4, independent: 3, independent conditional: 0, independent unconditional: 3, 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: 4, independent: 3, independent conditional: 0, independent unconditional: 3, 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: 4, independent: 3, independent conditional: 0, independent unconditional: 3, 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: 4, independent: 3, independent conditional: 0, independent unconditional: 3, 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: 4, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 4, Positive cache size: 3, Positive conditional cache size: 0, Positive unconditional cache size: 3, 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 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 21 PlacesBefore, 21 PlacesAfterwards, 18 TransitionsBefore, 18 TransitionsAfterwards, 6 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 4, Positive cache size: 3, Positive conditional cache size: 0, Positive unconditional cache size: 3, 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: [L1351] 0 int g; [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L1353] 0 pthread_cond_t cond = { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } }; [L1373] 0 pthread_t t1; [L1374] 0 pthread_t t2; [L1375] FCALL, FORK 0 pthread_create(&t1,((void *)0),f1,((void *)0)) VAL [\old(argc)=1150, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={4:0}, g=0, mut={3:0}, pthread_create(&t1,((void *)0),f1,((void *)0))=-2, ptr={0:0}, t1={6:0}, t2={5:0}] [L1377] FCALL, FORK 0 pthread_create(&t2,((void *)0),f2,((void *)0)) VAL [\old(argc)=1150, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={4:0}, g=0, mut={3:0}, pthread_create(&t2,((void *)0),f2,((void *)0))=-1, ptr={0:0}, t1={6:0}, t2={5:0}] [L1356] 1 g = 1 VAL [cond={4:0}, g=1, mut={3:0}, ptr={0:0}, ptr={0:0}] [L1365] CALL 2 __VERIFIER_assert(g == 0) [L19] COND TRUE 2 !(cond) [L19] 2 reach_error() VAL [\old(cond)=0, cond={4:0}, cond=0, g=1, mut={3:0}, ptr={0:0}, ptr={0:0}] - UnprovableResult [Line: 1375]: 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. - UnprovableResult [Line: 1377]: 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 5 procedures, 118 locations, 4 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: 4.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 67 IncrementalHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 0 mSDtfsCounter, 67 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=114occurred in iteration=2, 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, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 27 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-13 03:41:26,718 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...