/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-RepeatedSemanticLbeWithDisjunctivePredicates.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 [2022-12-06 07:09:15,230 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 07:09:15,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 07:09:15,281 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 07:09:15,282 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 07:09:15,285 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 07:09:15,289 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 07:09:15,293 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 07:09:15,298 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 07:09:15,303 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 07:09:15,304 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 07:09:15,306 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 07:09:15,306 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 07:09:15,308 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 07:09:15,309 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 07:09:15,310 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 07:09:15,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 07:09:15,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 07:09:15,312 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 07:09:15,313 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 07:09:15,314 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 07:09:15,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 07:09:15,318 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 07:09:15,319 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 07:09:15,325 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-06 07:09:15,332 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 07:09:15,332 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 07:09:15,333 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 07:09:15,342 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2022-12-06 07:09:15,371 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 07:09:15,371 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 07:09:15,373 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 07:09:15,373 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 07:09:15,373 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 07:09:15,374 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 07:09:15,374 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 07:09:15,374 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 07:09:15,374 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 07:09:15,375 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 07:09:15,375 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 07:09:15,376 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 07:09:15,376 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 07:09:15,376 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 07:09:15,376 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 07:09:15,376 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 07:09:15,376 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 07:09:15,376 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 07:09:15,377 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 07:09:15,378 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 07:09:15,378 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 07:09:15,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 07:09:15,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 07:09:15,383 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 07:09:15,383 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 07:09:15,383 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 07:09:15,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 07:09:15,383 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 07:09:15,383 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 07:09:15,699 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 07:09:15,711 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 07:09:15,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 07:09:15,714 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 07:09:15,715 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 07:09:15,716 INFO L432 ainManager$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 [2022-12-06 07:09:16,843 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 07:09:17,110 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 07:09:17,112 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-12-06 07:09:17,130 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbdfce7a9/07946a0f66fb432d9197d3db027b40b8/FLAGe3c4aad26 [2022-12-06 07:09:17,145 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbdfce7a9/07946a0f66fb432d9197d3db027b40b8 [2022-12-06 07:09:17,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 07:09:17,148 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 07:09:17,150 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 07:09:17,150 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 07:09:17,152 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 07:09:17,152 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:09:17" (1/1) ... [2022-12-06 07:09:17,153 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d1ea4f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:09:17, skipping insertion in model container [2022-12-06 07:09:17,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:09:17" (1/1) ... [2022-12-06 07:09:17,157 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 07:09:17,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 07:09:17,307 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] [2022-12-06 07:09:17,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 07:09:17,441 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 07:09:17,451 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] [2022-12-06 07:09:17,480 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 07:09:17,513 INFO L208 MainTranslator]: Completed translation [2022-12-06 07:09:17,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:09:17 WrapperNode [2022-12-06 07:09:17,514 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 07:09:17,515 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 07:09:17,515 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 07:09:17,516 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 07:09:17,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:09:17" (1/1) ... [2022-12-06 07:09:17,544 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:09:17" (1/1) ... [2022-12-06 07:09:17,561 INFO L138 Inliner]: procedures = 163, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2022-12-06 07:09:17,562 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 07:09:17,562 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 07:09:17,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 07:09:17,563 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 07:09:17,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:09:17" (1/1) ... [2022-12-06 07:09:17,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:09:17" (1/1) ... [2022-12-06 07:09:17,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:09:17" (1/1) ... [2022-12-06 07:09:17,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:09:17" (1/1) ... [2022-12-06 07:09:17,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:09:17" (1/1) ... [2022-12-06 07:09:17,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:09:17" (1/1) ... [2022-12-06 07:09:17,588 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:09:17" (1/1) ... [2022-12-06 07:09:17,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:09:17" (1/1) ... [2022-12-06 07:09:17,590 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 07:09:17,591 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 07:09:17,591 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 07:09:17,591 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 07:09:17,591 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:09:17" (1/1) ... [2022-12-06 07:09:17,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 07:09:17,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:09:17,614 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 07:09:17,622 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 07:09:17,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 07:09:17,644 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-06 07:09:17,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 07:09:17,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 07:09:17,645 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-06 07:09:17,645 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-06 07:09:17,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 07:09:17,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 07:09:17,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 07:09:17,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 07:09:17,647 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 07:09:17,804 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 07:09:17,806 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 07:09:17,932 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 07:09:17,937 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 07:09:17,937 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 07:09:17,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:09:17 BoogieIcfgContainer [2022-12-06 07:09:17,939 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 07:09:17,941 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 07:09:17,941 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 07:09:17,943 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 07:09:17,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 07:09:17" (1/3) ... [2022-12-06 07:09:17,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ce0400a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:09:17, skipping insertion in model container [2022-12-06 07:09:17,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:09:17" (2/3) ... [2022-12-06 07:09:17,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ce0400a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:09:17, skipping insertion in model container [2022-12-06 07:09:17,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:09:17" (3/3) ... [2022-12-06 07:09:17,945 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-12-06 07:09:17,958 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 07:09:17,958 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 07:09:17,958 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 07:09:18,001 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-06 07:09:18,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 72 transitions, 149 flow [2022-12-06 07:09:18,106 INFO L130 PetriNetUnfolder]: 2/71 cut-off events. [2022-12-06 07:09:18,106 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 07:09:18,111 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. [2022-12-06 07:09:18,111 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 72 transitions, 149 flow [2022-12-06 07:09:18,117 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 61 transitions, 125 flow [2022-12-06 07:09:18,119 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:09:18,150 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 61 transitions, 125 flow [2022-12-06 07:09:18,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 61 transitions, 125 flow [2022-12-06 07:09:18,188 INFO L130 PetriNetUnfolder]: 1/61 cut-off events. [2022-12-06 07:09:18,189 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 07:09:18,189 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. [2022-12-06 07:09:18,190 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 61 transitions, 125 flow [2022-12-06 07:09:18,191 INFO L188 LiptonReduction]: Number of co-enabled transitions 360 [2022-12-06 07:09:21,298 INFO L203 LiptonReduction]: Total number of compositions: 48 [2022-12-06 07:09:21,309 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 07:09:21,313 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;@77b68839, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 07:09:21,313 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-06 07:09:21,315 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2022-12-06 07:09:21,315 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 07:09:21,316 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:09:21,316 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-06 07:09:21,316 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 07:09:21,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:09:21,320 INFO L85 PathProgramCache]: Analyzing trace with hash 232260389, now seen corresponding path program 1 times [2022-12-06 07:09:21,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:09:21,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144115316] [2022-12-06 07:09:21,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:09:21,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:09:21,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 07:09:21,402 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-06 07:09:21,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 07:09:21,427 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-06 07:09:21,429 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-06 07:09:21,429 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-06 07:09:21,431 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-06 07:09:21,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 07:09:21,431 INFO L458 BasicCegarLoop]: Path program histogram: [1] [2022-12-06 07:09:21,435 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 07:09:21,435 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 07:09:21,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 07:09:21 BasicIcfg [2022-12-06 07:09:21,448 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 07:09:21,448 INFO L158 Benchmark]: Toolchain (without parser) took 4300.27ms. Allocated memory was 206.6MB in the beginning and 327.2MB in the end (delta: 120.6MB). Free memory was 181.9MB in the beginning and 197.8MB in the end (delta: -15.9MB). Peak memory consumption was 105.7MB. Max. memory is 8.0GB. [2022-12-06 07:09:21,449 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 206.6MB. Free memory was 184.0MB in the beginning and 183.9MB in the end (delta: 63.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 07:09:21,449 INFO L158 Benchmark]: CACSL2BoogieTranslator took 364.41ms. Allocated memory is still 206.6MB. Free memory was 181.9MB in the beginning and 163.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-06 07:09:21,449 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.95ms. Allocated memory is still 206.6MB. 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. [2022-12-06 07:09:21,450 INFO L158 Benchmark]: Boogie Preprocessor took 27.67ms. Allocated memory is still 206.6MB. Free memory was 160.9MB in the beginning and 159.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 07:09:21,450 INFO L158 Benchmark]: RCFGBuilder took 348.52ms. Allocated memory is still 206.6MB. Free memory was 159.3MB in the beginning and 146.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-06 07:09:21,450 INFO L158 Benchmark]: TraceAbstraction took 3507.06ms. Allocated memory was 206.6MB in the beginning and 327.2MB in the end (delta: 120.6MB). Free memory was 146.2MB in the beginning and 197.8MB in the end (delta: -51.5MB). Peak memory consumption was 70.1MB. Max. memory is 8.0GB. [2022-12-06 07:09:21,452 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 206.6MB. Free memory was 184.0MB in the beginning and 183.9MB in the end (delta: 63.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 364.41ms. Allocated memory is still 206.6MB. Free memory was 181.9MB in the beginning and 163.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 46.95ms. Allocated memory is still 206.6MB. 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 27.67ms. Allocated memory is still 206.6MB. Free memory was 160.9MB in the beginning and 159.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 348.52ms. Allocated memory is still 206.6MB. Free memory was 159.3MB in the beginning and 146.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 3507.06ms. Allocated memory was 206.6MB in the beginning and 327.2MB in the end (delta: 120.6MB). Free memory was 146.2MB in the beginning and 197.8MB in the end (delta: -51.5MB). Peak memory consumption was 70.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.1s, 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: 133, independent: 33, independent conditional: 0, independent unconditional: 33, dependent: 100, dependent conditional: 0, dependent unconditional: 100, 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: 3.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.3s, 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! [2022-12-06 07:09:21,477 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...