/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 20:47:41,746 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 20:47:41,748 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 20:47:41,777 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-12-05 20:47:41,795 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 20:47:41,797 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 20:47:41,798 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 20:47:41,801 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 20:47:41,802 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 20:47:41,802 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 20:47:41,803 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 20:47:41,804 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 20:47:41,804 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 20:47:41,806 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 20:47:41,806 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 20:47:41,807 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 20:47:41,815 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-05 20:47:41,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 20:47:41,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 20:47:41,823 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 20:47:41,845 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-SemanticLbe.epf [2022-12-05 20:47:41,886 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 20:47:41,886 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 20:47:41,887 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 20:47:41,888 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 20:47:41,888 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 20:47:41,889 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 20:47:41,889 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 20:47:41,889 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 20:47:41,889 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 20:47:41,889 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 20:47:41,889 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 20:47:41,890 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 20:47:41,890 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 20:47:41,890 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 20:47:41,890 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 20:47:41,890 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 20:47:41,890 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 20:47:41,890 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 20:47:41,890 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 20:47:41,890 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 20:47:41,891 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 20:47:41,891 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 20:47:41,891 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 20:47:41,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:47:41,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 20:47:41,891 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 20:47:41,891 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 20:47:41,891 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 20:47:41,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 20:47:41,907 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 20:47:41,907 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 20:47:42,158 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 20:47:42,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 20:47:42,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 20:47:42,177 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 20:47:42,177 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 20:47:42,178 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-12-05 20:47:43,233 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 20:47:43,438 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 20:47:43,439 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-12-05 20:47:43,462 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4f9ede48/f41d942068ea4ad1a65065c7136c8f17/FLAGf2af9310b [2022-12-05 20:47:43,477 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4f9ede48/f41d942068ea4ad1a65065c7136c8f17 [2022-12-05 20:47:43,479 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 20:47:43,480 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 20:47:43,482 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 20:47:43,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 20:47:43,484 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 20:47:43,485 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:47:43" (1/1) ... [2022-12-05 20:47:43,486 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@660f3e5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:43, skipping insertion in model container [2022-12-05 20:47:43,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:47:43" (1/1) ... [2022-12-05 20:47:43,490 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 20:47:43,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 20:47:43,673 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2022-12-05 20:47:43,769 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:47:43,803 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 20:47:43,813 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2022-12-05 20:47:43,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:47:43,854 INFO L208 MainTranslator]: Completed translation [2022-12-05 20:47:43,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:43 WrapperNode [2022-12-05 20:47:43,855 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 20:47:43,855 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 20:47:43,856 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 20:47:43,856 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 20:47:43,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:43" (1/1) ... [2022-12-05 20:47:43,871 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:43" (1/1) ... [2022-12-05 20:47:43,884 INFO L138 Inliner]: procedures = 163, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2022-12-05 20:47:43,884 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 20:47:43,884 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 20:47:43,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 20:47:43,885 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 20:47:43,890 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:43" (1/1) ... [2022-12-05 20:47:43,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:43" (1/1) ... [2022-12-05 20:47:43,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:43" (1/1) ... [2022-12-05 20:47:43,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:43" (1/1) ... [2022-12-05 20:47:43,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:43" (1/1) ... [2022-12-05 20:47:43,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:43" (1/1) ... [2022-12-05 20:47:43,900 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:43" (1/1) ... [2022-12-05 20:47:43,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:43" (1/1) ... [2022-12-05 20:47:43,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 20:47:43,903 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 20:47:43,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 20:47:43,903 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 20:47:43,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:43" (1/1) ... [2022-12-05 20:47:43,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:47:43,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 20:47:43,940 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-05 20:47:43,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-05 20:47:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 20:47:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-05 20:47:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 20:47:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 20:47:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-05 20:47:43,971 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-05 20:47:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 20:47:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 20:47:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 20:47:43,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 20:47:43,973 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 20:47:44,068 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 20:47:44,069 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 20:47:44,248 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 20:47:44,252 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 20:47:44,252 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 20:47:44,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:47:44 BoogieIcfgContainer [2022-12-05 20:47:44,254 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 20:47:44,255 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 20:47:44,255 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 20:47:44,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 20:47:44,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 08:47:43" (1/3) ... [2022-12-05 20:47:44,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a49b058 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:47:44, skipping insertion in model container [2022-12-05 20:47:44,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:43" (2/3) ... [2022-12-05 20:47:44,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a49b058 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:47:44, skipping insertion in model container [2022-12-05 20:47:44,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:47:44" (3/3) ... [2022-12-05 20:47:44,259 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-12-05 20:47:44,271 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 20:47:44,271 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 20:47:44,271 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 20:47:44,315 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-05 20:47:44,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 72 transitions, 149 flow [2022-12-05 20:47:44,364 INFO L130 PetriNetUnfolder]: 2/71 cut-off events. [2022-12-05 20:47:44,364 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:47:44,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2022-12-05 20:47:44,367 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 72 transitions, 149 flow [2022-12-05 20:47:44,369 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 61 transitions, 125 flow [2022-12-05 20:47:44,370 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 20:47:44,381 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 61 transitions, 125 flow [2022-12-05 20:47:44,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 61 transitions, 125 flow [2022-12-05 20:47:44,396 INFO L130 PetriNetUnfolder]: 1/61 cut-off events. [2022-12-05 20:47:44,397 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:47:44,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 61 events. 1/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2022-12-05 20:47:44,398 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 61 transitions, 125 flow [2022-12-05 20:47:44,398 INFO L188 LiptonReduction]: Number of co-enabled transitions 360 [2022-12-05 20:47:46,803 INFO L203 LiptonReduction]: Total number of compositions: 48 [2022-12-05 20:47:46,823 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 20:47:46,827 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3731247b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 20:47:46,827 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-05 20:47:46,852 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2022-12-05 20:47:46,852 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:47:46,852 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:47:46,853 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-05 20:47:46,853 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 20:47:46,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:47:46,856 INFO L85 PathProgramCache]: Analyzing trace with hash 232260389, now seen corresponding path program 1 times [2022-12-05 20:47:46,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:47:46,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072981469] [2022-12-05 20:47:46,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:47:46,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:47:46,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-05 20:47:46,974 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-05 20:47:46,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-05 20:47:47,001 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-05 20:47:47,002 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-05 20:47:47,003 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-05 20:47:47,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-05 20:47:47,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 20:47:47,005 INFO L458 BasicCegarLoop]: Path program histogram: [1] [2022-12-05 20:47:47,009 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 20:47:47,009 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 20:47:47,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 08:47:47 BasicIcfg [2022-12-05 20:47:47,021 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 20:47:47,022 INFO L158 Benchmark]: Toolchain (without parser) took 3541.92ms. Allocated memory was 191.9MB in the beginning and 230.7MB in the end (delta: 38.8MB). Free memory was 145.7MB in the beginning and 121.3MB in the end (delta: 24.5MB). Peak memory consumption was 64.8MB. Max. memory is 8.0GB. [2022-12-05 20:47:47,022 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 127.9MB. Free memory is still 104.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 20:47:47,023 INFO L158 Benchmark]: CACSL2BoogieTranslator took 372.74ms. Allocated memory is still 191.9MB. Free memory was 145.3MB in the beginning and 163.0MB in the end (delta: -17.7MB). Peak memory consumption was 15.2MB. Max. memory is 8.0GB. [2022-12-05 20:47:47,023 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.49ms. Allocated memory is still 191.9MB. Free memory was 163.0MB in the beginning and 160.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 20:47:47,023 INFO L158 Benchmark]: Boogie Preprocessor took 17.59ms. Allocated memory is still 191.9MB. Free memory was 160.9MB in the beginning and 159.8MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-05 20:47:47,024 INFO L158 Benchmark]: RCFGBuilder took 351.03ms. Allocated memory is still 191.9MB. Free memory was 159.8MB in the beginning and 146.7MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-05 20:47:47,024 INFO L158 Benchmark]: TraceAbstraction took 2766.54ms. Allocated memory was 191.9MB in the beginning and 230.7MB in the end (delta: 38.8MB). Free memory was 145.7MB in the beginning and 121.3MB in the end (delta: 24.4MB). Peak memory consumption was 63.2MB. Max. memory is 8.0GB. [2022-12-05 20:47:47,026 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 127.9MB. Free memory is still 104.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 372.74ms. Allocated memory is still 191.9MB. Free memory was 145.3MB in the beginning and 163.0MB in the end (delta: -17.7MB). Peak memory consumption was 15.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 28.49ms. Allocated memory is still 191.9MB. Free memory was 163.0MB in the beginning and 160.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 17.59ms. Allocated memory is still 191.9MB. Free memory was 160.9MB in the beginning and 159.8MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 351.03ms. Allocated memory is still 191.9MB. Free memory was 159.8MB in the beginning and 146.7MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2766.54ms. Allocated memory was 191.9MB in the beginning and 230.7MB in the end (delta: 38.8MB). Free memory was 145.7MB in the beginning and 121.3MB in the end (delta: 24.4MB). Peak memory consumption was 63.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 64 PlacesBefore, 19 PlacesAfterwards, 61 TransitionsBefore, 16 TransitionsAfterwards, 360 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 31 TrivialYvCompositions, 16 ConcurrentYvCompositions, 0 ChoiceCompositions, 48 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 373, independent: 324, independent conditional: 324, independent unconditional: 0, dependent: 49, dependent conditional: 49, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 373, independent: 324, independent conditional: 0, independent unconditional: 324, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 373, independent: 324, independent conditional: 0, independent unconditional: 324, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 373, independent: 324, independent conditional: 0, independent unconditional: 324, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 265, independent: 235, independent conditional: 0, independent unconditional: 235, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 265, independent: 221, independent conditional: 0, independent unconditional: 221, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 44, independent: 14, independent conditional: 0, independent unconditional: 14, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 57, independent: 17, independent conditional: 0, independent unconditional: 17, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 373, independent: 89, independent conditional: 0, independent unconditional: 89, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 265, unknown conditional: 0, unknown unconditional: 265] , Statistics on independence cache: Total cache size (in pairs): 366, Positive cache size: 336, Positive conditional cache size: 0, Positive unconditional cache size: 336, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 int g = 42; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L694] 0 int r = __VERIFIER_nondet_int(); [L695] 0 int t; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, arg={0:0}, B={4:0}, g=42, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, r=0] [L700] COND FALSE 0 !(\read(r)) [L705] 0 t = g [L706] CALL 0 __VERIFIER_assert(t == 17) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, A={3:0}, arg={0:0}, B={4:0}, cond=0, g=42] - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 83 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-05 20:47:47,043 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...