/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_34-traces-minepp-L-needs-to-be-um_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 01:15:24,370 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 01:15:24,372 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 01:15:24,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-12-13 01:15:24,421 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 01:15:24,422 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 01:15:24,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 01:15:24,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 01:15:24,427 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 01:15:24,428 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 01:15:24,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 01:15:24,434 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 01:15:24,435 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 01:15:24,436 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 01:15:24,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 01:15:24,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 01:15:24,443 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-13 01:15:24,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 01:15:24,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 01:15:24,451 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 01:15:24,452 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf [2022-12-13 01:15:24,477 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 01:15:24,477 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 01:15:24,479 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 01:15:24,479 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 01:15:24,479 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 01:15:24,480 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 01:15:24,480 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 01:15:24,480 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 01:15:24,480 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 01:15:24,480 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 01:15:24,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 01:15:24,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 01:15:24,481 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 01:15:24,481 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 01:15:24,481 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 01:15:24,481 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 01:15:24,481 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 01:15:24,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 01:15:24,482 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 01:15:24,482 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 01:15:24,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 01:15:24,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 01:15:24,482 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 01:15:24,482 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 01:15:24,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 01:15:24,482 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 01:15:24,482 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 01:15:24,482 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 01:15:24,483 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-13 01:15:24,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 01:15:24,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 01:15:24,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 01:15:24,821 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 01:15:24,823 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 01:15:24,824 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_34-traces-minepp-L-needs-to-be-um_true.i [2022-12-13 01:15:25,806 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 01:15:26,087 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 01:15:26,087 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_34-traces-minepp-L-needs-to-be-um_true.i [2022-12-13 01:15:26,120 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/320a22f6d/2e596c13b2564181b55382c48e964ec1/FLAG42792313e [2022-12-13 01:15:26,140 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/320a22f6d/2e596c13b2564181b55382c48e964ec1 [2022-12-13 01:15:26,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 01:15:26,143 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 01:15:26,144 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 01:15:26,144 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 01:15:26,146 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 01:15:26,147 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:15:26" (1/1) ... [2022-12-13 01:15:26,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67da951 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:26, skipping insertion in model container [2022-12-13 01:15:26,148 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:15:26" (1/1) ... [2022-12-13 01:15:26,153 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 01:15:26,189 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 01:15:26,320 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_34-traces-minepp-L-needs-to-be-um_true.i[1107,1120] [2022-12-13 01:15:26,454 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 01:15:26,467 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 01:15:26,478 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_34-traces-minepp-L-needs-to-be-um_true.i[1107,1120] [2022-12-13 01:15:26,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 01:15:26,551 INFO L208 MainTranslator]: Completed translation [2022-12-13 01:15:26,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:26 WrapperNode [2022-12-13 01:15:26,551 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 01:15:26,553 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 01:15:26,553 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 01:15:26,554 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 01:15:26,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:26" (1/1) ... [2022-12-13 01:15:26,572 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:26" (1/1) ... [2022-12-13 01:15:26,592 INFO L138 Inliner]: procedures = 163, calls = 38, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 64 [2022-12-13 01:15:26,592 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 01:15:26,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 01:15:26,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 01:15:26,593 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 01:15:26,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:26" (1/1) ... [2022-12-13 01:15:26,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:26" (1/1) ... [2022-12-13 01:15:26,607 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:26" (1/1) ... [2022-12-13 01:15:26,608 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:26" (1/1) ... [2022-12-13 01:15:26,613 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:26" (1/1) ... [2022-12-13 01:15:26,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:26" (1/1) ... [2022-12-13 01:15:26,615 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:26" (1/1) ... [2022-12-13 01:15:26,620 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:26" (1/1) ... [2022-12-13 01:15:26,622 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 01:15:26,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 01:15:26,623 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 01:15:26,623 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 01:15:26,623 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:26" (1/1) ... [2022-12-13 01:15:26,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 01:15:26,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 01:15:26,660 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 01:15:26,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 01:15:26,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 01:15:26,696 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 01:15:26,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 01:15:26,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 01:15:26,697 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 01:15:26,697 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 01:15:26,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 01:15:26,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 01:15:26,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 01:15:26,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 01:15:26,699 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 01:15:26,817 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 01:15:26,819 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 01:15:27,042 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 01:15:27,047 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 01:15:27,047 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 01:15:27,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:15:27 BoogieIcfgContainer [2022-12-13 01:15:27,048 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 01:15:27,050 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 01:15:27,050 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 01:15:27,052 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 01:15:27,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:15:26" (1/3) ... [2022-12-13 01:15:27,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dbc5f30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:15:27, skipping insertion in model container [2022-12-13 01:15:27,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:26" (2/3) ... [2022-12-13 01:15:27,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dbc5f30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:15:27, skipping insertion in model container [2022-12-13 01:15:27,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:15:27" (3/3) ... [2022-12-13 01:15:27,054 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_34-traces-minepp-L-needs-to-be-um_true.i [2022-12-13 01:15:27,072 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 01:15:27,072 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 01:15:27,072 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 01:15:27,136 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 01:15:27,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 86 places, 84 transitions, 173 flow [2022-12-13 01:15:27,224 INFO L130 PetriNetUnfolder]: 2/83 cut-off events. [2022-12-13 01:15:27,224 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 01:15:27,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 83 events. 2/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2022-12-13 01:15:27,228 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 84 transitions, 173 flow [2022-12-13 01:15:27,233 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 75 transitions, 153 flow [2022-12-13 01:15:27,235 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 01:15:27,257 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 75 transitions, 153 flow [2022-12-13 01:15:27,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 75 transitions, 153 flow [2022-12-13 01:15:27,291 INFO L130 PetriNetUnfolder]: 1/75 cut-off events. [2022-12-13 01:15:27,291 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 01:15:27,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 75 events. 1/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2022-12-13 01:15:27,294 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 75 transitions, 153 flow [2022-12-13 01:15:27,295 INFO L226 LiptonReduction]: Number of co-enabled transitions 748 [2022-12-13 01:15:30,298 INFO L241 LiptonReduction]: Total number of compositions: 60 [2022-12-13 01:15:30,308 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 01:15:30,312 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;@64231252, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 01:15:30,312 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 01:15:30,315 INFO L130 PetriNetUnfolder]: 1/16 cut-off events. [2022-12-13 01:15:30,315 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 01:15:30,315 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 01:15:30,316 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 01:15:30,316 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 01:15:30,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 01:15:30,319 INFO L85 PathProgramCache]: Analyzing trace with hash -185855915, now seen corresponding path program 1 times [2022-12-13 01:15:30,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 01:15:30,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818901201] [2022-12-13 01:15:30,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:15:30,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 01:15:30,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:15:30,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 01:15:30,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 01:15:30,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818901201] [2022-12-13 01:15:30,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818901201] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 01:15:30,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 01:15:30,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 01:15:30,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253238518] [2022-12-13 01:15:30,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 01:15:30,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 01:15:30,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 01:15:30,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 01:15:30,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 01:15:30,549 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 26 [2022-12-13 01:15:30,550 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 26 transitions, 55 flow. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:15:30,550 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 01:15:30,550 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 26 [2022-12-13 01:15:30,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 01:15:30,587 INFO L130 PetriNetUnfolder]: 48/144 cut-off events. [2022-12-13 01:15:30,588 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 01:15:30,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261 conditions, 144 events. 48/144 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 593 event pairs, 37 based on Foata normal form. 10/113 useless extension candidates. Maximal degree in co-relation 252. Up to 91 conditions per place. [2022-12-13 01:15:30,589 INFO L137 encePairwiseOnDemand]: 21/26 looper letters, 18 selfloop transitions, 4 changer transitions 0/30 dead transitions. [2022-12-13 01:15:30,589 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 30 transitions, 107 flow [2022-12-13 01:15:30,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 01:15:30,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 01:15:30,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 47 transitions. [2022-12-13 01:15:30,596 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6025641025641025 [2022-12-13 01:15:30,597 INFO L175 Difference]: Start difference. First operand has 29 places, 26 transitions, 55 flow. Second operand 3 states and 47 transitions. [2022-12-13 01:15:30,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 30 transitions, 107 flow [2022-12-13 01:15:30,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 30 transitions, 106 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 01:15:30,600 INFO L231 Difference]: Finished difference. Result has 31 places, 26 transitions, 68 flow [2022-12-13 01:15:30,601 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=31, PETRI_TRANSITIONS=26} [2022-12-13 01:15:30,604 INFO L295 CegarLoopForPetriNet]: 29 programPoint places, 2 predicate places. [2022-12-13 01:15:30,604 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 01:15:30,604 INFO L89 Accepts]: Start accepts. Operand has 31 places, 26 transitions, 68 flow [2022-12-13 01:15:30,606 INFO L95 Accepts]: Finished accepts. [2022-12-13 01:15:30,606 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 01:15:30,606 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 26 transitions, 68 flow [2022-12-13 01:15:30,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 31 places, 26 transitions, 68 flow [2022-12-13 01:15:30,610 INFO L130 PetriNetUnfolder]: 1/32 cut-off events. [2022-12-13 01:15:30,611 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 01:15:30,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 32 events. 1/32 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 59 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 37. Up to 5 conditions per place. [2022-12-13 01:15:30,612 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 26 transitions, 68 flow [2022-12-13 01:15:30,612 INFO L226 LiptonReduction]: Number of co-enabled transitions 210 [2022-12-13 01:15:30,697 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [188] L693-->L694: Formula: (= 42 v_~g~0_4) InVars {} OutVars{~g~0=v_~g~0_4} AuxVars[] AssignedVars[~g~0] and [257] L689-->L691: Formula: (let ((.cse0 (select |v_#pthreadsMutex_604| |v_~#C~0.base_161|))) (and (= v_~g~0_47 15) (= (store |v_#pthreadsMutex_604| |v_~#C~0.base_161| (store .cse0 |v_~#C~0.offset_161| 1)) |v_#pthreadsMutex_603|) (= (select .cse0 |v_~#C~0.offset_161|) 0))) InVars {#pthreadsMutex=|v_#pthreadsMutex_604|, ~#C~0.base=|v_~#C~0.base_161|, ~#C~0.offset=|v_~#C~0.offset_161|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_603|, ~g~0=v_~g~0_47, ~#C~0.base=|v_~#C~0.base_161|, ~#C~0.offset=|v_~#C~0.offset_161|, t_funThread1of1ForFork0_#t~nondet3=|v_t_funThread1of1ForFork0_#t~nondet3_55|} AuxVars[] AssignedVars[#pthreadsMutex, ~g~0, t_funThread1of1ForFork0_#t~nondet3] [2022-12-13 01:15:30,731 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 01:15:30,732 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 128 [2022-12-13 01:15:30,732 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 26 transitions, 71 flow [2022-12-13 01:15:30,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:15:30,732 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 01:15:30,732 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 01:15:30,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 01:15:30,733 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 01:15:30,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 01:15:30,733 INFO L85 PathProgramCache]: Analyzing trace with hash -620758090, now seen corresponding path program 1 times [2022-12-13 01:15:30,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 01:15:30,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763277456] [2022-12-13 01:15:30,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:15:30,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 01:15:30,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:15:30,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 01:15:30,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 01:15:30,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763277456] [2022-12-13 01:15:30,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763277456] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 01:15:30,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 01:15:30,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 01:15:30,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15215417] [2022-12-13 01:15:30,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 01:15:30,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 01:15:30,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 01:15:30,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 01:15:30,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-12-13 01:15:30,902 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 26 [2022-12-13 01:15:30,903 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 26 transitions, 71 flow. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:15:30,903 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 01:15:30,903 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 26 [2022-12-13 01:15:30,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 01:15:30,967 INFO L130 PetriNetUnfolder]: 65/149 cut-off events. [2022-12-13 01:15:30,967 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 01:15:30,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314 conditions, 149 events. 65/149 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 505 event pairs, 20 based on Foata normal form. 20/123 useless extension candidates. Maximal degree in co-relation 303. Up to 94 conditions per place. [2022-12-13 01:15:30,968 INFO L137 encePairwiseOnDemand]: 16/26 looper letters, 10 selfloop transitions, 5 changer transitions 20/35 dead transitions. [2022-12-13 01:15:30,968 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 35 transitions, 151 flow [2022-12-13 01:15:30,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 01:15:30,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 01:15:30,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 45 transitions. [2022-12-13 01:15:30,970 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4326923076923077 [2022-12-13 01:15:30,970 INFO L175 Difference]: Start difference. First operand has 31 places, 26 transitions, 71 flow. Second operand 4 states and 45 transitions. [2022-12-13 01:15:30,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 35 transitions, 151 flow [2022-12-13 01:15:30,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 35 transitions, 145 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 01:15:30,971 INFO L231 Difference]: Finished difference. Result has 31 places, 13 transitions, 42 flow [2022-12-13 01:15:30,971 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=42, PETRI_PLACES=31, PETRI_TRANSITIONS=13} [2022-12-13 01:15:30,971 INFO L295 CegarLoopForPetriNet]: 29 programPoint places, 2 predicate places. [2022-12-13 01:15:30,971 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 01:15:30,971 INFO L89 Accepts]: Start accepts. Operand has 31 places, 13 transitions, 42 flow [2022-12-13 01:15:30,972 INFO L95 Accepts]: Finished accepts. [2022-12-13 01:15:30,972 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 01:15:30,972 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 13 transitions, 42 flow [2022-12-13 01:15:30,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 19 places, 13 transitions, 42 flow [2022-12-13 01:15:30,974 INFO L130 PetriNetUnfolder]: 2/17 cut-off events. [2022-12-13 01:15:30,974 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 01:15:30,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 17 events. 2/17 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 16 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 23. Up to 5 conditions per place. [2022-12-13 01:15:30,975 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 19 places, 13 transitions, 42 flow [2022-12-13 01:15:30,975 INFO L226 LiptonReduction]: Number of co-enabled transitions 32 [2022-12-13 01:15:31,111 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [261] L701-3-->L706: Formula: (let ((.cse0 (select |v_#pthreadsMutex_1239| |v_~#A~0.base_221|))) (let ((.cse2 (store |v_#pthreadsMutex_1239| |v_~#A~0.base_221| (store .cse0 |v_~#A~0.offset_218| 1)))) (let ((.cse1 (select .cse2 |v_~#C~0.base_317|))) (and (= (select .cse0 |v_~#A~0.offset_218|) 0) (not (= 0 |v_ULTIMATE.start_main_~r~0#1_165|)) (<= 0 (+ |v_ULTIMATE.start_main_#t~nondet7#1_312| 2147483648)) (<= |v_ULTIMATE.start_main_#t~nondet7#1_312| 2147483647) (= (select .cse1 |v_~#C~0.offset_317|) 0) (= |v_ULTIMATE.start_main_#t~nondet7#1_312| |v_ULTIMATE.start_main_~r~0#1_165|) (= |v_#pthreadsMutex_1237| (store .cse2 |v_~#C~0.base_317| (store .cse1 |v_~#C~0.offset_317| 1))))))) InVars {#pthreadsMutex=|v_#pthreadsMutex_1239|, ~#A~0.offset=|v_~#A~0.offset_218|, ~#C~0.base=|v_~#C~0.base_317|, ~#C~0.offset=|v_~#C~0.offset_317|, ULTIMATE.start_main_#t~nondet7#1=|v_ULTIMATE.start_main_#t~nondet7#1_312|, ~#A~0.base=|v_~#A~0.base_221|} OutVars{ULTIMATE.start_main_#t~pre5#1=|v_ULTIMATE.start_main_#t~pre5#1_143|, #pthreadsMutex=|v_#pthreadsMutex_1237|, ~#A~0.offset=|v_~#A~0.offset_218|, ULTIMATE.start_main_~r~0#1=|v_ULTIMATE.start_main_~r~0#1_165|, ULTIMATE.start_main_#t~nondet9#1=|v_ULTIMATE.start_main_#t~nondet9#1_90|, ~#C~0.base=|v_~#C~0.base_317|, ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_85|, ~#C~0.offset=|v_~#C~0.offset_317|, ULTIMATE.start_main_#t~nondet6#1=|v_ULTIMATE.start_main_#t~nondet6#1_137|, ~#A~0.base=|v_~#A~0.base_221|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre5#1, #pthreadsMutex, ULTIMATE.start_main_~r~0#1, ULTIMATE.start_main_#t~nondet9#1, ULTIMATE.start_main_#t~nondet8#1, ULTIMATE.start_main_#t~nondet6#1, ULTIMATE.start_main_#t~nondet7#1] and [185] L691-->L692: Formula: (= |v_#pthreadsMutex_19| (store |v_#pthreadsMutex_20| |v_~#C~0.base_10| (store (select |v_#pthreadsMutex_20| |v_~#C~0.base_10|) |v_~#C~0.offset_10| 0))) InVars {#pthreadsMutex=|v_#pthreadsMutex_20|, ~#C~0.base=|v_~#C~0.base_10|, ~#C~0.offset=|v_~#C~0.offset_10|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_19|, ~#C~0.base=|v_~#C~0.base_10|, ~#C~0.offset=|v_~#C~0.offset_10|} AuxVars[] AssignedVars[#pthreadsMutex] [2022-12-13 01:15:31,157 INFO L241 LiptonReduction]: Total number of compositions: 4 [2022-12-13 01:15:31,157 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 186 [2022-12-13 01:15:31,158 INFO L495 AbstractCegarLoop]: Abstraction has has 16 places, 10 transitions, 38 flow [2022-12-13 01:15:31,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:15:31,158 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 01:15:31,158 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 01:15:31,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 01:15:31,158 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 01:15:31,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 01:15:31,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1464311992, now seen corresponding path program 1 times [2022-12-13 01:15:31,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 01:15:31,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776207163] [2022-12-13 01:15:31,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:15:31,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 01:15:31,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:15:31,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 01:15:31,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 01:15:31,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776207163] [2022-12-13 01:15:31,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776207163] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 01:15:31,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 01:15:31,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 01:15:31,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740739032] [2022-12-13 01:15:31,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 01:15:31,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 01:15:31,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 01:15:31,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 01:15:31,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 01:15:31,229 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 10 [2022-12-13 01:15:31,229 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 10 transitions, 38 flow. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:15:31,229 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 01:15:31,229 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 10 [2022-12-13 01:15:31,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 01:15:31,237 INFO L130 PetriNetUnfolder]: 1/9 cut-off events. [2022-12-13 01:15:31,237 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 01:15:31,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 9 events. 1/9 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 6 event pairs, 1 based on Foata normal form. 2/11 useless extension candidates. Maximal degree in co-relation 18. Up to 6 conditions per place. [2022-12-13 01:15:31,238 INFO L137 encePairwiseOnDemand]: 7/10 looper letters, 0 selfloop transitions, 0 changer transitions 6/6 dead transitions. [2022-12-13 01:15:31,238 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 6 transitions, 34 flow [2022-12-13 01:15:31,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 01:15:31,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 01:15:31,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2022-12-13 01:15:31,238 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.175 [2022-12-13 01:15:31,238 INFO L175 Difference]: Start difference. First operand has 16 places, 10 transitions, 38 flow. Second operand 4 states and 7 transitions. [2022-12-13 01:15:31,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 6 transitions, 34 flow [2022-12-13 01:15:31,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 6 transitions, 31 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 01:15:31,239 INFO L231 Difference]: Finished difference. Result has 14 places, 0 transitions, 0 flow [2022-12-13 01:15:31,239 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=10, PETRI_DIFFERENCE_MINUEND_FLOW=19, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=14, PETRI_TRANSITIONS=0} [2022-12-13 01:15:31,239 INFO L295 CegarLoopForPetriNet]: 29 programPoint places, -15 predicate places. [2022-12-13 01:15:31,239 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 01:15:31,240 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 14 places, 0 transitions, 0 flow [2022-12-13 01:15:31,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-13 01:15:31,240 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 01:15:31,240 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 01:15:31,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2022-12-13 01:15:31,240 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-13 01:15:31,240 INFO L226 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-13 01:15:31,240 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 01:15:31,241 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2 [2022-12-13 01:15:31,241 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-13 01:15:31,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:15:31,243 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-13 01:15:31,243 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-13 01:15:31,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 01:15:31,243 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-13 01:15:31,264 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 01:15:31,264 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 01:15:31,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 01:15:31 BasicIcfg [2022-12-13 01:15:31,266 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 01:15:31,266 INFO L158 Benchmark]: Toolchain (without parser) took 5123.75ms. Allocated memory was 172.0MB in the beginning and 206.6MB in the end (delta: 34.6MB). Free memory was 147.8MB in the beginning and 97.4MB in the end (delta: 50.4MB). Peak memory consumption was 86.3MB. Max. memory is 8.0GB. [2022-12-13 01:15:31,267 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 172.0MB. Free memory was 148.4MB in the beginning and 148.3MB in the end (delta: 83.2kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 01:15:31,267 INFO L158 Benchmark]: CACSL2BoogieTranslator took 407.07ms. Allocated memory is still 172.0MB. Free memory was 147.8MB in the beginning and 128.6MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-13 01:15:31,267 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.96ms. Allocated memory is still 172.0MB. Free memory was 128.6MB in the beginning and 126.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-13 01:15:31,267 INFO L158 Benchmark]: Boogie Preprocessor took 28.98ms. Allocated memory is still 172.0MB. Free memory was 126.5MB in the beginning and 124.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-13 01:15:31,268 INFO L158 Benchmark]: RCFGBuilder took 425.87ms. Allocated memory is still 172.0MB. Free memory was 124.9MB in the beginning and 110.7MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-13 01:15:31,268 INFO L158 Benchmark]: TraceAbstraction took 4216.14ms. Allocated memory was 172.0MB in the beginning and 206.6MB in the end (delta: 34.6MB). Free memory was 109.7MB in the beginning and 97.4MB in the end (delta: 12.3MB). Peak memory consumption was 48.5MB. Max. memory is 8.0GB. [2022-12-13 01:15:31,269 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 172.0MB. Free memory was 148.4MB in the beginning and 148.3MB in the end (delta: 83.2kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 407.07ms. Allocated memory is still 172.0MB. Free memory was 147.8MB in the beginning and 128.6MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 39.96ms. Allocated memory is still 172.0MB. Free memory was 128.6MB in the beginning and 126.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.98ms. Allocated memory is still 172.0MB. Free memory was 126.5MB in the beginning and 124.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 425.87ms. Allocated memory is still 172.0MB. Free memory was 124.9MB in the beginning and 110.7MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4216.14ms. Allocated memory was 172.0MB in the beginning and 206.6MB in the end (delta: 34.6MB). Free memory was 109.7MB in the beginning and 97.4MB in the end (delta: 12.3MB). Peak memory consumption was 48.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.0s, 78 PlacesBefore, 29 PlacesAfterwards, 75 TransitionsBefore, 26 TransitionsAfterwards, 748 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 34 TrivialYvCompositions, 24 ConcurrentYvCompositions, 0 ChoiceCompositions, 60 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 929, independent: 799, independent conditional: 799, independent unconditional: 0, dependent: 130, dependent conditional: 130, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 929, independent: 799, independent conditional: 0, independent unconditional: 799, dependent: 130, dependent conditional: 0, dependent unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 929, independent: 799, independent conditional: 0, independent unconditional: 799, dependent: 130, dependent conditional: 0, dependent unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 929, independent: 799, independent conditional: 0, independent unconditional: 799, dependent: 130, dependent conditional: 0, dependent unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 555, independent: 505, independent conditional: 0, independent unconditional: 505, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 555, independent: 448, independent conditional: 0, independent unconditional: 448, dependent: 107, dependent conditional: 0, dependent unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 107, independent: 57, independent conditional: 0, independent unconditional: 57, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 195, independent: 105, independent conditional: 0, independent unconditional: 105, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 929, independent: 294, independent conditional: 0, independent unconditional: 294, dependent: 80, dependent conditional: 0, dependent unconditional: 80, unknown: 555, unknown conditional: 0, unknown unconditional: 555] , Statistics on independence cache: Total cache size (in pairs): 791, Positive cache size: 741, Positive conditional cache size: 0, Positive unconditional cache size: 741, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 31 PlacesBefore, 31 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 210 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 314, independent: 238, independent conditional: 238, independent unconditional: 0, dependent: 76, dependent conditional: 76, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 314, independent: 238, independent conditional: 28, independent unconditional: 210, dependent: 76, dependent conditional: 4, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 314, independent: 238, independent conditional: 0, independent unconditional: 238, dependent: 76, dependent conditional: 0, dependent unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 314, independent: 238, independent conditional: 0, independent unconditional: 238, dependent: 76, dependent conditional: 0, dependent unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 103, independent: 77, independent conditional: 0, independent unconditional: 77, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 103, independent: 19, independent conditional: 0, independent unconditional: 19, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 84, independent: 58, independent conditional: 0, independent unconditional: 58, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 86, independent: 57, independent conditional: 0, independent unconditional: 57, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 314, independent: 161, independent conditional: 0, independent unconditional: 161, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 103, unknown conditional: 0, unknown unconditional: 103] , Statistics on independence cache: Total cache size (in pairs): 105, Positive cache size: 79, Positive conditional cache size: 0, Positive unconditional cache size: 79, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 32, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.2s, 19 PlacesBefore, 16 PlacesAfterwards, 13 TransitionsBefore, 10 TransitionsAfterwards, 32 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 26, independent: 12, independent conditional: 12, independent unconditional: 0, dependent: 14, dependent conditional: 14, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 26, independent: 12, independent conditional: 8, independent unconditional: 4, dependent: 14, dependent conditional: 4, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 26, independent: 12, independent conditional: 8, independent unconditional: 4, dependent: 14, dependent conditional: 4, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 26, independent: 12, independent conditional: 8, independent unconditional: 4, dependent: 14, dependent conditional: 4, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, independent: 2, independent conditional: 2, independent unconditional: 0, dependent: 3, dependent conditional: 1, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, independent: 2, independent conditional: 2, independent unconditional: 0, dependent: 3, dependent conditional: 1, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 8, independent: 3, independent conditional: 3, independent unconditional: 0, dependent: 5, dependent conditional: 3, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 26, independent: 10, independent conditional: 6, independent unconditional: 4, dependent: 11, dependent conditional: 3, dependent unconditional: 8, unknown: 5, unknown conditional: 3, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 140, Positive cache size: 111, Positive conditional cache size: 2, Positive unconditional cache size: 109, Negative cache size: 29, Negative conditional cache size: 1, Negative unconditional cache size: 28, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 0 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 140, Positive cache size: 111, Positive conditional cache size: 2, Positive unconditional cache size: 109, Negative cache size: 29, Negative conditional cache size: 1, Negative unconditional cache size: 28, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 102 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: 4.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 35 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 96 IncrementalHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 1 mSDtfsCounter, 96 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred in iteration=1, InterpolantAutomatonStates: 11, 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, 0.3s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 131 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 01:15:31,284 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...