/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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 04:59:00,940 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 04:59:00,941 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 04:59:00,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 04:59:00,971 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 04:59:00,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 04:59:00,974 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 04:59:00,975 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 04:59:00,976 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 04:59:00,977 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 04:59:00,977 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 04:59:00,978 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 04:59:00,978 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 04:59:00,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 04:59:00,980 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 04:59:00,980 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 04:59:00,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 04:59:00,981 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 04:59:00,982 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 04:59:00,986 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 04:59:00,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 04:59:00,994 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 04:59:00,998 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 04:59:00,999 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 04:59:01,001 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-06 04:59:01,006 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 04:59:01,007 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 04:59:01,007 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 04:59:01,008 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-RepeatedSemanticLbeWithPredicates.epf [2022-12-06 04:59:01,024 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 04:59:01,024 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 04:59:01,025 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 04:59:01,025 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 04:59:01,026 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 04:59:01,026 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 04:59:01,026 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 04:59:01,026 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 04:59:01,026 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 04:59:01,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 04:59:01,026 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 04:59:01,026 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 04:59:01,026 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 04:59:01,027 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 04:59:01,027 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 04:59:01,027 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 04:59:01,027 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 04:59:01,027 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 04:59:01,027 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 04:59:01,027 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 04:59:01,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 04:59:01,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 04:59:01,028 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 04:59:01,028 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 04:59:01,028 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 04:59:01,028 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 04:59:01,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 04:59:01,028 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 04:59:01,028 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 04:59:01,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 04:59:01,313 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 04:59:01,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 04:59:01,315 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 04:59:01,316 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 04:59:01,317 INFO L432 ainManager$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_neg.i [2022-12-06 04:59:02,445 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 04:59:02,836 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 04:59:02,836 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i [2022-12-06 04:59:02,878 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e6a28780/13f12ec8e4ac43449f2beccce7623e01/FLAGc898d2a06 [2022-12-06 04:59:02,901 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e6a28780/13f12ec8e4ac43449f2beccce7623e01 [2022-12-06 04:59:02,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 04:59:02,905 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 04:59:02,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 04:59:02,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 04:59:02,908 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 04:59:02,914 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:59:02" (1/1) ... [2022-12-06 04:59:02,915 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bd88c3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:02, skipping insertion in model container [2022-12-06 04:59:02,915 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:59:02" (1/1) ... [2022-12-06 04:59:02,934 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 04:59:03,002 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 04:59:03,191 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_neg.i[1103,1116] [2022-12-06 04:59:03,404 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-06 04:59:03,406 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 04:59:03,417 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 04:59:03,427 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_neg.i[1103,1116] [2022-12-06 04:59:03,449 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-06 04:59:03,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 04:59:03,506 INFO L208 MainTranslator]: Completed translation [2022-12-06 04:59:03,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:03 WrapperNode [2022-12-06 04:59:03,507 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 04:59:03,507 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 04:59:03,508 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 04:59:03,508 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 04:59:03,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:03" (1/1) ... [2022-12-06 04:59:03,538 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:03" (1/1) ... [2022-12-06 04:59:03,576 INFO L138 Inliner]: procedures = 354, calls = 38, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2022-12-06 04:59:03,577 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 04:59:03,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 04:59:03,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 04:59:03,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 04:59:03,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:03" (1/1) ... [2022-12-06 04:59:03,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:03" (1/1) ... [2022-12-06 04:59:03,585 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:03" (1/1) ... [2022-12-06 04:59:03,585 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:03" (1/1) ... [2022-12-06 04:59:03,599 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:03" (1/1) ... [2022-12-06 04:59:03,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:03" (1/1) ... [2022-12-06 04:59:03,603 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:03" (1/1) ... [2022-12-06 04:59:03,604 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:03" (1/1) ... [2022-12-06 04:59:03,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 04:59:03,621 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 04:59:03,621 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 04:59:03,622 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 04:59:03,622 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:03" (1/1) ... [2022-12-06 04:59:03,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 04:59:03,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 04:59:03,647 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 04:59:03,689 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 04:59:03,705 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-12-06 04:59:03,705 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2022-12-06 04:59:03,705 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2022-12-06 04:59:03,705 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2022-12-06 04:59:03,705 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2022-12-06 04:59:03,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 04:59:03,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 04:59:03,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 04:59:03,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 04:59:03,706 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-06 04:59:03,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 04:59:03,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 04:59:03,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 04:59:03,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 04:59:03,707 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 04:59:03,973 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 04:59:03,974 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 04:59:04,135 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 04:59:04,143 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 04:59:04,143 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 04:59:04,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:59:04 BoogieIcfgContainer [2022-12-06 04:59:04,145 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 04:59:04,146 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 04:59:04,146 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 04:59:04,154 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 04:59:04,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:59:02" (1/3) ... [2022-12-06 04:59:04,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d14272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:59:04, skipping insertion in model container [2022-12-06 04:59:04,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:03" (2/3) ... [2022-12-06 04:59:04,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d14272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:59:04, skipping insertion in model container [2022-12-06 04:59:04,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:59:04" (3/3) ... [2022-12-06 04:59:04,156 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_unknown_1_neg.i [2022-12-06 04:59:04,168 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 04:59:04,168 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 04:59:04,168 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 04:59:04,253 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-06 04:59:04,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 88 transitions, 192 flow [2022-12-06 04:59:04,361 INFO L130 PetriNetUnfolder]: 1/86 cut-off events. [2022-12-06 04:59:04,361 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 04:59:04,364 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. [2022-12-06 04:59:04,364 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 88 transitions, 192 flow [2022-12-06 04:59:04,367 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 70 transitions, 149 flow [2022-12-06 04:59:04,368 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:59:04,379 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 70 transitions, 149 flow [2022-12-06 04:59:04,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 70 transitions, 149 flow [2022-12-06 04:59:04,411 INFO L130 PetriNetUnfolder]: 0/70 cut-off events. [2022-12-06 04:59:04,412 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 04:59:04,412 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. [2022-12-06 04:59:04,415 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 70 transitions, 149 flow [2022-12-06 04:59:04,415 INFO L188 LiptonReduction]: Number of co-enabled transitions 552 [2022-12-06 04:59:08,177 INFO L203 LiptonReduction]: Total number of compositions: 59 [2022-12-06 04:59:08,194 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 04:59:08,200 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;@4c27c560, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 04:59:08,200 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-06 04:59:08,203 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2022-12-06 04:59:08,204 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 04:59:08,204 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:59:08,204 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-06 04:59:08,205 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 04:59:08,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:59:08,209 INFO L85 PathProgramCache]: Analyzing trace with hash 197933511, now seen corresponding path program 1 times [2022-12-06 04:59:08,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:59:08,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48079861] [2022-12-06 04:59:08,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:59:08,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:59:08,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 04:59:08,387 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-06 04:59:08,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 04:59:08,420 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-06 04:59:08,421 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-06 04:59:08,422 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-06 04:59:08,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-06 04:59:08,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-06 04:59:08,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-12-06 04:59:08,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 04:59:08,424 INFO L458 BasicCegarLoop]: Path program histogram: [1] [2022-12-06 04:59:08,428 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 04:59:08,428 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 04:59:08,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:59:08 BasicIcfg [2022-12-06 04:59:08,445 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 04:59:08,447 INFO L158 Benchmark]: Toolchain (without parser) took 5540.83ms. Allocated memory was 182.5MB in the beginning and 219.2MB in the end (delta: 36.7MB). Free memory was 156.7MB in the beginning and 150.4MB in the end (delta: 6.3MB). Peak memory consumption was 43.7MB. Max. memory is 8.0GB. [2022-12-06 04:59:08,450 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 182.5MB. Free memory was 159.7MB in the beginning and 159.7MB in the end (delta: 80.7kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 04:59:08,450 INFO L158 Benchmark]: CACSL2BoogieTranslator took 601.13ms. Allocated memory is still 182.5MB. Free memory was 156.4MB in the beginning and 118.1MB in the end (delta: 38.3MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. [2022-12-06 04:59:08,450 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.10ms. Allocated memory is still 182.5MB. Free memory was 118.1MB in the beginning and 115.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 04:59:08,451 INFO L158 Benchmark]: Boogie Preprocessor took 43.86ms. Allocated memory is still 182.5MB. Free memory was 115.5MB in the beginning and 112.9MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-06 04:59:08,451 INFO L158 Benchmark]: RCFGBuilder took 523.27ms. Allocated memory is still 182.5MB. Free memory was 112.9MB in the beginning and 93.5MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-06 04:59:08,451 INFO L158 Benchmark]: TraceAbstraction took 4299.25ms. Allocated memory was 182.5MB in the beginning and 219.2MB in the end (delta: 36.7MB). Free memory was 93.0MB in the beginning and 150.4MB in the end (delta: -57.5MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 04:59:08,453 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 182.5MB. Free memory was 159.7MB in the beginning and 159.7MB in the end (delta: 80.7kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 601.13ms. Allocated memory is still 182.5MB. Free memory was 156.4MB in the beginning and 118.1MB in the end (delta: 38.3MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 69.10ms. Allocated memory is still 182.5MB. Free memory was 118.1MB in the beginning and 115.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 43.86ms. Allocated memory is still 182.5MB. Free memory was 115.5MB in the beginning and 112.9MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 523.27ms. Allocated memory is still 182.5MB. Free memory was 112.9MB in the beginning and 93.5MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * TraceAbstraction took 4299.25ms. Allocated memory was 182.5MB in the beginning and 219.2MB in the end (delta: 36.7MB). Free memory was 93.0MB in the beginning and 150.4MB in the end (delta: -57.5MB). 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: 3.8s, 77 PlacesBefore, 20 PlacesAfterwards, 70 TransitionsBefore, 13 TransitionsAfterwards, 552 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 34 TrivialYvCompositions, 25 ConcurrentYvCompositions, 0 ChoiceCompositions, 59 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 369, independent: 350, independent conditional: 350, independent unconditional: 0, dependent: 19, dependent conditional: 19, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 369, independent: 350, independent conditional: 0, independent unconditional: 350, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 369, independent: 350, independent conditional: 0, independent unconditional: 350, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 369, independent: 350, independent conditional: 0, independent unconditional: 350, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 322, independent: 311, independent conditional: 0, independent unconditional: 311, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 322, independent: 302, independent conditional: 0, independent unconditional: 302, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 20, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 51, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 369, independent: 39, independent conditional: 0, independent unconditional: 39, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 322, unknown conditional: 0, unknown unconditional: 322] , Statistics on independence cache: Total cache size (in pairs): 543, Positive cache size: 532, Positive conditional cache size: 0, Positive unconditional cache size: 532, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, 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))=-1, 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))=0, ptr={0:0}, t1={6:0}, t2={5:0}] [L1365] CALL 2 __VERIFIER_assert(!(g == 0)) [L19] COND TRUE 2 !(cond) [L19] 2 reach_error() VAL [\old(cond)=0, cond=0, cond={4:0}, g=0, mut={3:0}, 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: 4.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 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 04:59:08,465 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...