/usr/bin/java -Xmx16000000000 -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-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/pthread-wmm/safe035_pso.oepc_pso.opt_rmo.oepc_rmo.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 16:15:14,687 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 16:15:14,772 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 16:15:14,777 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 16:15:14,778 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 16:15:14,808 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 16:15:14,808 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 16:15:14,809 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 16:15:14,809 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 16:15:14,813 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 16:15:14,813 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 16:15:14,813 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 16:15:14,813 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 16:15:14,814 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 16:15:14,815 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 16:15:14,815 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 16:15:14,815 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 16:15:14,815 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 16:15:14,815 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 16:15:14,816 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 16:15:14,816 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 16:15:14,817 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 16:15:14,817 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 16:15:14,817 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 16:15:14,818 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 16:15:14,818 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 16:15:14,818 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 16:15:14,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 16:15:14,819 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 16:15:14,819 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 16:15:14,820 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 16:15:14,820 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 16:15:14,820 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 16:15:14,820 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 16:15:14,820 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 16:15:14,821 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 16:15:15,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 16:15:15,123 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 16:15:15,125 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 16:15:15,128 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 16:15:15,129 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 16:15:15,130 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_pso.oepc_pso.opt_rmo.oepc_rmo.opt_tso.oepc_tso.opt.i [2023-08-25 16:15:16,352 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 16:15:16,616 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 16:15:16,616 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_pso.oepc_pso.opt_rmo.oepc_rmo.opt_tso.oepc_tso.opt.i [2023-08-25 16:15:16,633 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a44a1a23f/ef862f89ddc9426cbe4552553125d263/FLAG704a36ceb [2023-08-25 16:15:16,650 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a44a1a23f/ef862f89ddc9426cbe4552553125d263 [2023-08-25 16:15:16,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 16:15:16,653 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 16:15:16,654 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 16:15:16,654 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 16:15:16,656 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 16:15:16,657 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 04:15:16" (1/1) ... [2023-08-25 16:15:16,658 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cf7efcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:15:16, skipping insertion in model container [2023-08-25 16:15:16,658 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 04:15:16" (1/1) ... [2023-08-25 16:15:16,698 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 16:15:16,984 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 16:15:16,995 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 16:15:17,024 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 16:15:17,026 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 16:15:17,057 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 16:15:17,089 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 16:15:17,090 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 16:15:17,096 INFO L206 MainTranslator]: Completed translation [2023-08-25 16:15:17,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:15:17 WrapperNode [2023-08-25 16:15:17,096 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 16:15:17,097 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 16:15:17,098 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 16:15:17,098 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 16:15:17,104 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:15:17" (1/1) ... [2023-08-25 16:15:17,126 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:15:17" (1/1) ... [2023-08-25 16:15:17,144 INFO L138 Inliner]: procedures = 176, calls = 60, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 108 [2023-08-25 16:15:17,145 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 16:15:17,145 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 16:15:17,146 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 16:15:17,146 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 16:15:17,153 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:15:17" (1/1) ... [2023-08-25 16:15:17,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:15:17" (1/1) ... [2023-08-25 16:15:17,156 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:15:17" (1/1) ... [2023-08-25 16:15:17,156 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:15:17" (1/1) ... [2023-08-25 16:15:17,162 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:15:17" (1/1) ... [2023-08-25 16:15:17,164 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:15:17" (1/1) ... [2023-08-25 16:15:17,165 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:15:17" (1/1) ... [2023-08-25 16:15:17,166 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:15:17" (1/1) ... [2023-08-25 16:15:17,168 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 16:15:17,169 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 16:15:17,169 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 16:15:17,169 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 16:15:17,170 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:15:17" (1/1) ... [2023-08-25 16:15:17,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 16:15:17,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 16:15:17,198 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) [2023-08-25 16:15:17,223 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 [2023-08-25 16:15:17,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 16:15:17,232 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 16:15:17,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 16:15:17,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 16:15:17,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 16:15:17,233 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-25 16:15:17,233 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-25 16:15:17,233 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-25 16:15:17,233 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-25 16:15:17,233 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-25 16:15:17,233 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-25 16:15:17,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 16:15:17,234 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 16:15:17,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 16:15:17,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 16:15:17,235 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 16:15:17,345 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 16:15:17,346 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 16:15:17,564 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 16:15:17,711 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 16:15:17,712 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 16:15:17,714 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 04:15:17 BoogieIcfgContainer [2023-08-25 16:15:17,714 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 16:15:17,716 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 16:15:17,716 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 16:15:17,718 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 16:15:17,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 04:15:16" (1/3) ... [2023-08-25 16:15:17,719 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1507fa1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 04:15:17, skipping insertion in model container [2023-08-25 16:15:17,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:15:17" (2/3) ... [2023-08-25 16:15:17,719 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1507fa1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 04:15:17, skipping insertion in model container [2023-08-25 16:15:17,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 04:15:17" (3/3) ... [2023-08-25 16:15:17,720 INFO L112 eAbstractionObserver]: Analyzing ICFG safe035_pso.oepc_pso.opt_rmo.oepc_rmo.opt_tso.oepc_tso.opt.i [2023-08-25 16:15:17,744 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 16:15:17,744 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 25 error locations. [2023-08-25 16:15:17,745 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 16:15:17,813 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 16:15:17,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 117 transitions, 249 flow [2023-08-25 16:15:17,880 INFO L124 PetriNetUnfolderBase]: 3/114 cut-off events. [2023-08-25 16:15:17,880 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 16:15:17,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 114 events. 3/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 139 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 96. Up to 2 conditions per place. [2023-08-25 16:15:17,886 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 117 transitions, 249 flow [2023-08-25 16:15:17,890 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 114 transitions, 237 flow [2023-08-25 16:15:17,893 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 16:15:17,900 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 114 transitions, 237 flow [2023-08-25 16:15:17,902 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 114 transitions, 237 flow [2023-08-25 16:15:17,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 114 transitions, 237 flow [2023-08-25 16:15:17,926 INFO L124 PetriNetUnfolderBase]: 3/114 cut-off events. [2023-08-25 16:15:17,926 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 16:15:17,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 114 events. 3/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 139 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 96. Up to 2 conditions per place. [2023-08-25 16:15:17,932 INFO L119 LiptonReduction]: Number of co-enabled transitions 4158 [2023-08-25 16:15:22,069 INFO L134 LiptonReduction]: Checked pairs total: 16719 [2023-08-25 16:15:22,069 INFO L136 LiptonReduction]: Total number of compositions: 104 [2023-08-25 16:15:22,081 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 16:15:22,086 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@b685b9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 16:15:22,086 INFO L358 AbstractCegarLoop]: Starting to check reachability of 43 error locations. [2023-08-25 16:15:22,088 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 16:15:22,088 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-25 16:15:22,088 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 16:15:22,088 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 16:15:22,089 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 16:15:22,089 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 16:15:22,093 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 16:15:22,093 INFO L85 PathProgramCache]: Analyzing trace with hash 613485, now seen corresponding path program 1 times [2023-08-25 16:15:22,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 16:15:22,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585647995] [2023-08-25 16:15:22,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 16:15:22,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 16:15:22,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 16:15:22,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 16:15:22,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 16:15:22,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585647995] [2023-08-25 16:15:22,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585647995] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 16:15:22,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 16:15:22,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 16:15:22,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544145668] [2023-08-25 16:15:22,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 16:15:22,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 16:15:22,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 16:15:22,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 16:15:22,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 16:15:22,271 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 221 [2023-08-25 16:15:22,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 42 transitions, 93 flow. Second operand has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 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) [2023-08-25 16:15:22,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 16:15:22,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 221 [2023-08-25 16:15:22,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 16:15:22,447 INFO L124 PetriNetUnfolderBase]: 567/864 cut-off events. [2023-08-25 16:15:22,448 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-25 16:15:22,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1775 conditions, 864 events. 567/864 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3200 event pairs, 567 based on Foata normal form. 0/800 useless extension candidates. Maximal degree in co-relation 1764. Up to 865 conditions per place. [2023-08-25 16:15:22,454 INFO L140 encePairwiseOnDemand]: 197/221 looper letters, 17 selfloop transitions, 0 changer transitions 1/18 dead transitions. [2023-08-25 16:15:22,454 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 18 transitions, 81 flow [2023-08-25 16:15:22,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 16:15:22,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 16:15:22,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 196 transitions. [2023-08-25 16:15:22,464 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4434389140271493 [2023-08-25 16:15:22,464 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 196 transitions. [2023-08-25 16:15:22,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 196 transitions. [2023-08-25 16:15:22,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 16:15:22,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 196 transitions. [2023-08-25 16:15:22,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 98.0) internal successors, (196), 2 states have internal predecessors, (196), 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) [2023-08-25 16:15:22,472 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 221.0) internal successors, (663), 3 states have internal predecessors, (663), 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) [2023-08-25 16:15:22,473 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 221.0) internal successors, (663), 3 states have internal predecessors, (663), 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) [2023-08-25 16:15:22,474 INFO L175 Difference]: Start difference. First operand has 52 places, 42 transitions, 93 flow. Second operand 2 states and 196 transitions. [2023-08-25 16:15:22,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 18 transitions, 81 flow [2023-08-25 16:15:22,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 18 transitions, 78 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 16:15:22,478 INFO L231 Difference]: Finished difference. Result has 26 places, 17 transitions, 40 flow [2023-08-25 16:15:22,479 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=40, PETRI_PLACES=26, PETRI_TRANSITIONS=17} [2023-08-25 16:15:22,482 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -26 predicate places. [2023-08-25 16:15:22,482 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 17 transitions, 40 flow [2023-08-25 16:15:22,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 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) [2023-08-25 16:15:22,482 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 16:15:22,482 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 16:15:22,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 16:15:22,483 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 16:15:22,483 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 16:15:22,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1014425583, now seen corresponding path program 1 times [2023-08-25 16:15:22,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 16:15:22,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099174301] [2023-08-25 16:15:22,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 16:15:22,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 16:15:22,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 16:15:22,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 16:15:22,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 16:15:22,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099174301] [2023-08-25 16:15:22,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099174301] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 16:15:22,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 16:15:22,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 16:15:22,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674549715] [2023-08-25 16:15:22,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 16:15:22,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 16:15:22,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 16:15:22,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 16:15:22,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 16:15:22,638 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 221 [2023-08-25 16:15:22,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 17 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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) [2023-08-25 16:15:22,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 16:15:22,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 221 [2023-08-25 16:15:22,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 16:15:22,718 INFO L124 PetriNetUnfolderBase]: 412/641 cut-off events. [2023-08-25 16:15:22,719 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 16:15:22,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1327 conditions, 641 events. 412/641 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2342 event pairs, 133 based on Foata normal form. 4/645 useless extension candidates. Maximal degree in co-relation 1324. Up to 614 conditions per place. [2023-08-25 16:15:22,723 INFO L140 encePairwiseOnDemand]: 217/221 looper letters, 24 selfloop transitions, 3 changer transitions 0/27 dead transitions. [2023-08-25 16:15:22,723 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 27 transitions, 118 flow [2023-08-25 16:15:22,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 16:15:22,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 16:15:22,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 256 transitions. [2023-08-25 16:15:22,730 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3861236802413273 [2023-08-25 16:15:22,730 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 256 transitions. [2023-08-25 16:15:22,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 256 transitions. [2023-08-25 16:15:22,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 16:15:22,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 256 transitions. [2023-08-25 16:15:22,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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) [2023-08-25 16:15:22,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 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) [2023-08-25 16:15:22,738 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 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) [2023-08-25 16:15:22,738 INFO L175 Difference]: Start difference. First operand has 26 places, 17 transitions, 40 flow. Second operand 3 states and 256 transitions. [2023-08-25 16:15:22,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 27 transitions, 118 flow [2023-08-25 16:15:22,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 27 transitions, 118 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 16:15:22,739 INFO L231 Difference]: Finished difference. Result has 28 places, 19 transitions, 59 flow [2023-08-25 16:15:22,740 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=59, PETRI_PLACES=28, PETRI_TRANSITIONS=19} [2023-08-25 16:15:22,741 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -24 predicate places. [2023-08-25 16:15:22,741 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 19 transitions, 59 flow [2023-08-25 16:15:22,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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) [2023-08-25 16:15:22,745 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 16:15:22,745 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 16:15:22,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 16:15:22,751 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 16:15:22,751 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 16:15:22,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1382422781, now seen corresponding path program 1 times [2023-08-25 16:15:22,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 16:15:22,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376408469] [2023-08-25 16:15:22,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 16:15:22,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 16:15:22,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 16:15:22,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 16:15:22,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 16:15:22,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376408469] [2023-08-25 16:15:22,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376408469] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 16:15:22,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 16:15:22,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 16:15:22,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333718664] [2023-08-25 16:15:22,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 16:15:22,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 16:15:22,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 16:15:22,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 16:15:22,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 16:15:22,877 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 221 [2023-08-25 16:15:22,877 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 19 transitions, 59 flow. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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) [2023-08-25 16:15:22,877 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 16:15:22,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 221 [2023-08-25 16:15:22,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 16:15:22,955 INFO L124 PetriNetUnfolderBase]: 343/544 cut-off events. [2023-08-25 16:15:22,955 INFO L125 PetriNetUnfolderBase]: For 98/98 co-relation queries the response was YES. [2023-08-25 16:15:22,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1276 conditions, 544 events. 343/544 cut-off events. For 98/98 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1836 event pairs, 159 based on Foata normal form. 28/572 useless extension candidates. Maximal degree in co-relation 1271. Up to 289 conditions per place. [2023-08-25 16:15:22,958 INFO L140 encePairwiseOnDemand]: 218/221 looper letters, 24 selfloop transitions, 2 changer transitions 0/26 dead transitions. [2023-08-25 16:15:22,958 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 26 transitions, 127 flow [2023-08-25 16:15:22,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 16:15:22,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 16:15:22,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 253 transitions. [2023-08-25 16:15:22,960 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3815987933634992 [2023-08-25 16:15:22,960 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 253 transitions. [2023-08-25 16:15:22,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 253 transitions. [2023-08-25 16:15:22,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 16:15:22,960 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 253 transitions. [2023-08-25 16:15:22,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 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) [2023-08-25 16:15:22,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 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) [2023-08-25 16:15:22,963 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 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) [2023-08-25 16:15:22,963 INFO L175 Difference]: Start difference. First operand has 28 places, 19 transitions, 59 flow. Second operand 3 states and 253 transitions. [2023-08-25 16:15:22,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 26 transitions, 127 flow [2023-08-25 16:15:22,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 26 transitions, 124 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 16:15:22,965 INFO L231 Difference]: Finished difference. Result has 30 places, 19 transitions, 64 flow [2023-08-25 16:15:22,965 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=30, PETRI_TRANSITIONS=19} [2023-08-25 16:15:22,966 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -22 predicate places. [2023-08-25 16:15:22,966 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 19 transitions, 64 flow [2023-08-25 16:15:22,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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) [2023-08-25 16:15:22,967 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 16:15:22,967 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 16:15:22,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 16:15:22,970 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 16:15:22,971 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 16:15:22,971 INFO L85 PathProgramCache]: Analyzing trace with hash 92619107, now seen corresponding path program 1 times [2023-08-25 16:15:22,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 16:15:22,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100928980] [2023-08-25 16:15:22,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 16:15:22,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 16:15:23,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 16:15:23,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 16:15:23,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 16:15:23,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100928980] [2023-08-25 16:15:23,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100928980] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 16:15:23,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 16:15:23,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 16:15:23,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49218281] [2023-08-25 16:15:23,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 16:15:23,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 16:15:23,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 16:15:23,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 16:15:23,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 16:15:23,057 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 221 [2023-08-25 16:15:23,058 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 19 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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) [2023-08-25 16:15:23,058 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 16:15:23,058 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 221 [2023-08-25 16:15:23,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 16:15:23,140 INFO L124 PetriNetUnfolderBase]: 439/704 cut-off events. [2023-08-25 16:15:23,140 INFO L125 PetriNetUnfolderBase]: For 181/181 co-relation queries the response was YES. [2023-08-25 16:15:23,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1692 conditions, 704 events. 439/704 cut-off events. For 181/181 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2801 event pairs, 211 based on Foata normal form. 32/736 useless extension candidates. Maximal degree in co-relation 1686. Up to 441 conditions per place. [2023-08-25 16:15:23,143 INFO L140 encePairwiseOnDemand]: 218/221 looper letters, 21 selfloop transitions, 2 changer transitions 4/27 dead transitions. [2023-08-25 16:15:23,143 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 27 transitions, 137 flow [2023-08-25 16:15:23,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 16:15:23,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 16:15:23,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 255 transitions. [2023-08-25 16:15:23,145 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38461538461538464 [2023-08-25 16:15:23,145 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 255 transitions. [2023-08-25 16:15:23,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 255 transitions. [2023-08-25 16:15:23,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 16:15:23,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 255 transitions. [2023-08-25 16:15:23,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 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) [2023-08-25 16:15:23,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 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) [2023-08-25 16:15:23,148 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 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) [2023-08-25 16:15:23,148 INFO L175 Difference]: Start difference. First operand has 30 places, 19 transitions, 64 flow. Second operand 3 states and 255 transitions. [2023-08-25 16:15:23,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 27 transitions, 137 flow [2023-08-25 16:15:23,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 27 transitions, 131 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 16:15:23,150 INFO L231 Difference]: Finished difference. Result has 31 places, 17 transitions, 60 flow [2023-08-25 16:15:23,150 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=60, PETRI_PLACES=31, PETRI_TRANSITIONS=17} [2023-08-25 16:15:23,151 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -21 predicate places. [2023-08-25 16:15:23,151 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 17 transitions, 60 flow [2023-08-25 16:15:23,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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) [2023-08-25 16:15:23,152 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 16:15:23,152 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 16:15:23,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 16:15:23,152 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 16:15:23,152 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 16:15:23,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1427025179, now seen corresponding path program 1 times [2023-08-25 16:15:23,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 16:15:23,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188518890] [2023-08-25 16:15:23,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 16:15:23,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 16:15:23,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 16:15:23,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 16:15:23,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 16:15:23,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188518890] [2023-08-25 16:15:23,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188518890] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 16:15:23,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 16:15:23,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 16:15:23,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117737838] [2023-08-25 16:15:23,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 16:15:23,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 16:15:23,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 16:15:23,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 16:15:23,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 16:15:23,265 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 221 [2023-08-25 16:15:23,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 17 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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) [2023-08-25 16:15:23,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 16:15:23,266 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 221 [2023-08-25 16:15:23,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 16:15:23,320 INFO L124 PetriNetUnfolderBase]: 145/257 cut-off events. [2023-08-25 16:15:23,321 INFO L125 PetriNetUnfolderBase]: For 144/144 co-relation queries the response was YES. [2023-08-25 16:15:23,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 675 conditions, 257 events. 145/257 cut-off events. For 144/144 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 814 event pairs, 41 based on Foata normal form. 21/278 useless extension candidates. Maximal degree in co-relation 668. Up to 206 conditions per place. [2023-08-25 16:15:23,322 INFO L140 encePairwiseOnDemand]: 216/221 looper letters, 24 selfloop transitions, 4 changer transitions 0/28 dead transitions. [2023-08-25 16:15:23,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 28 transitions, 151 flow [2023-08-25 16:15:23,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 16:15:23,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 16:15:23,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 257 transitions. [2023-08-25 16:15:23,324 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38763197586727 [2023-08-25 16:15:23,324 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 257 transitions. [2023-08-25 16:15:23,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 257 transitions. [2023-08-25 16:15:23,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 16:15:23,324 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 257 transitions. [2023-08-25 16:15:23,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 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) [2023-08-25 16:15:23,326 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 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) [2023-08-25 16:15:23,327 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 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) [2023-08-25 16:15:23,327 INFO L175 Difference]: Start difference. First operand has 31 places, 17 transitions, 60 flow. Second operand 3 states and 257 transitions. [2023-08-25 16:15:23,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 28 transitions, 151 flow [2023-08-25 16:15:23,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 28 transitions, 137 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-25 16:15:23,328 INFO L231 Difference]: Finished difference. Result has 31 places, 20 transitions, 78 flow [2023-08-25 16:15:23,328 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=31, PETRI_TRANSITIONS=20} [2023-08-25 16:15:23,329 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -21 predicate places. [2023-08-25 16:15:23,329 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 20 transitions, 78 flow [2023-08-25 16:15:23,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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) [2023-08-25 16:15:23,330 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 16:15:23,330 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 16:15:23,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 16:15:23,330 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 16:15:23,330 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 16:15:23,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1288146127, now seen corresponding path program 1 times [2023-08-25 16:15:23,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 16:15:23,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63868478] [2023-08-25 16:15:23,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 16:15:23,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 16:15:23,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 16:15:23,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 16:15:23,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 16:15:23,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63868478] [2023-08-25 16:15:23,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63868478] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 16:15:23,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 16:15:23,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 16:15:23,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612647504] [2023-08-25 16:15:23,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 16:15:23,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 16:15:23,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 16:15:23,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 16:15:23,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 16:15:23,428 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 221 [2023-08-25 16:15:23,428 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 20 transitions, 78 flow. Second operand has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 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) [2023-08-25 16:15:23,429 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 16:15:23,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 221 [2023-08-25 16:15:23,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 16:15:23,484 INFO L124 PetriNetUnfolderBase]: 80/159 cut-off events. [2023-08-25 16:15:23,484 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2023-08-25 16:15:23,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 479 conditions, 159 events. 80/159 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 451 event pairs, 24 based on Foata normal form. 22/181 useless extension candidates. Maximal degree in co-relation 471. Up to 59 conditions per place. [2023-08-25 16:15:23,486 INFO L140 encePairwiseOnDemand]: 216/221 looper letters, 29 selfloop transitions, 7 changer transitions 0/36 dead transitions. [2023-08-25 16:15:23,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 36 transitions, 197 flow [2023-08-25 16:15:23,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 16:15:23,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 16:15:23,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 341 transitions. [2023-08-25 16:15:23,487 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38574660633484165 [2023-08-25 16:15:23,487 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 341 transitions. [2023-08-25 16:15:23,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 341 transitions. [2023-08-25 16:15:23,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 16:15:23,488 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 341 transitions. [2023-08-25 16:15:23,489 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 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) [2023-08-25 16:15:23,490 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 221.0) internal successors, (1105), 5 states have internal predecessors, (1105), 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) [2023-08-25 16:15:23,491 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 221.0) internal successors, (1105), 5 states have internal predecessors, (1105), 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) [2023-08-25 16:15:23,491 INFO L175 Difference]: Start difference. First operand has 31 places, 20 transitions, 78 flow. Second operand 4 states and 341 transitions. [2023-08-25 16:15:23,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 36 transitions, 197 flow [2023-08-25 16:15:23,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 36 transitions, 188 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-25 16:15:23,493 INFO L231 Difference]: Finished difference. Result has 33 places, 23 transitions, 110 flow [2023-08-25 16:15:23,493 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=110, PETRI_PLACES=33, PETRI_TRANSITIONS=23} [2023-08-25 16:15:23,493 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -19 predicate places. [2023-08-25 16:15:23,493 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 23 transitions, 110 flow [2023-08-25 16:15:23,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 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) [2023-08-25 16:15:23,494 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 16:15:23,494 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 16:15:23,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 16:15:23,494 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 16:15:23,495 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 16:15:23,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1044035298, now seen corresponding path program 1 times [2023-08-25 16:15:23,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 16:15:23,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600366936] [2023-08-25 16:15:23,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 16:15:23,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 16:15:23,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 16:15:23,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 16:15:23,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 16:15:23,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600366936] [2023-08-25 16:15:23,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600366936] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 16:15:23,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 16:15:23,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 16:15:23,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873291128] [2023-08-25 16:15:23,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 16:15:23,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 16:15:23,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 16:15:23,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 16:15:23,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-25 16:15:23,606 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 221 [2023-08-25 16:15:23,606 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 23 transitions, 110 flow. Second operand has 5 states, 5 states have (on average 78.8) internal successors, (394), 5 states have internal predecessors, (394), 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) [2023-08-25 16:15:23,606 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 16:15:23,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 221 [2023-08-25 16:15:23,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 16:15:23,659 INFO L124 PetriNetUnfolderBase]: 66/131 cut-off events. [2023-08-25 16:15:23,659 INFO L125 PetriNetUnfolderBase]: For 111/111 co-relation queries the response was YES. [2023-08-25 16:15:23,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 421 conditions, 131 events. 66/131 cut-off events. For 111/111 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 357 event pairs, 22 based on Foata normal form. 8/139 useless extension candidates. Maximal degree in co-relation 413. Up to 53 conditions per place. [2023-08-25 16:15:23,660 INFO L140 encePairwiseOnDemand]: 216/221 looper letters, 26 selfloop transitions, 10 changer transitions 0/36 dead transitions. [2023-08-25 16:15:23,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 36 transitions, 216 flow [2023-08-25 16:15:23,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 16:15:23,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 16:15:23,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 417 transitions. [2023-08-25 16:15:23,663 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3773755656108597 [2023-08-25 16:15:23,663 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 417 transitions. [2023-08-25 16:15:23,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 417 transitions. [2023-08-25 16:15:23,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 16:15:23,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 417 transitions. [2023-08-25 16:15:23,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 83.4) internal successors, (417), 5 states have internal predecessors, (417), 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) [2023-08-25 16:15:23,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 221.0) internal successors, (1326), 6 states have internal predecessors, (1326), 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) [2023-08-25 16:15:23,693 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 221.0) internal successors, (1326), 6 states have internal predecessors, (1326), 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) [2023-08-25 16:15:23,693 INFO L175 Difference]: Start difference. First operand has 33 places, 23 transitions, 110 flow. Second operand 5 states and 417 transitions. [2023-08-25 16:15:23,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 36 transitions, 216 flow [2023-08-25 16:15:23,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 36 transitions, 189 flow, removed 5 selfloop flow, removed 4 redundant places. [2023-08-25 16:15:23,695 INFO L231 Difference]: Finished difference. Result has 34 places, 23 transitions, 116 flow [2023-08-25 16:15:23,695 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=116, PETRI_PLACES=34, PETRI_TRANSITIONS=23} [2023-08-25 16:15:23,696 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -18 predicate places. [2023-08-25 16:15:23,696 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 23 transitions, 116 flow [2023-08-25 16:15:23,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 78.8) internal successors, (394), 5 states have internal predecessors, (394), 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) [2023-08-25 16:15:23,696 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 16:15:23,696 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 16:15:23,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 16:15:23,697 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 16:15:23,697 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 16:15:23,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1390074439, now seen corresponding path program 1 times [2023-08-25 16:15:23,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 16:15:23,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685822768] [2023-08-25 16:15:23,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 16:15:23,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 16:15:23,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 16:15:23,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 16:15:23,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 16:15:23,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685822768] [2023-08-25 16:15:23,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685822768] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 16:15:23,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 16:15:23,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 16:15:23,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337623038] [2023-08-25 16:15:23,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 16:15:23,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 16:15:23,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 16:15:23,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 16:15:23,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 16:15:23,746 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 221 [2023-08-25 16:15:23,746 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 23 transitions, 116 flow. Second operand has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 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) [2023-08-25 16:15:23,746 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 16:15:23,746 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 221 [2023-08-25 16:15:23,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 16:15:23,809 INFO L124 PetriNetUnfolderBase]: 81/165 cut-off events. [2023-08-25 16:15:23,809 INFO L125 PetriNetUnfolderBase]: For 230/230 co-relation queries the response was YES. [2023-08-25 16:15:23,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 532 conditions, 165 events. 81/165 cut-off events. For 230/230 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 555 event pairs, 5 based on Foata normal form. 1/166 useless extension candidates. Maximal degree in co-relation 525. Up to 98 conditions per place. [2023-08-25 16:15:23,810 INFO L140 encePairwiseOnDemand]: 218/221 looper letters, 27 selfloop transitions, 1 changer transitions 17/45 dead transitions. [2023-08-25 16:15:23,810 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 45 transitions, 335 flow [2023-08-25 16:15:23,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 16:15:23,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 16:15:23,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 332 transitions. [2023-08-25 16:15:23,811 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3755656108597285 [2023-08-25 16:15:23,811 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 332 transitions. [2023-08-25 16:15:23,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 332 transitions. [2023-08-25 16:15:23,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 16:15:23,812 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 332 transitions. [2023-08-25 16:15:23,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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) [2023-08-25 16:15:23,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 221.0) internal successors, (1105), 5 states have internal predecessors, (1105), 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) [2023-08-25 16:15:23,814 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 221.0) internal successors, (1105), 5 states have internal predecessors, (1105), 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) [2023-08-25 16:15:23,814 INFO L175 Difference]: Start difference. First operand has 34 places, 23 transitions, 116 flow. Second operand 4 states and 332 transitions. [2023-08-25 16:15:23,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 45 transitions, 335 flow [2023-08-25 16:15:23,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 45 transitions, 279 flow, removed 12 selfloop flow, removed 3 redundant places. [2023-08-25 16:15:23,816 INFO L231 Difference]: Finished difference. Result has 36 places, 23 transitions, 97 flow [2023-08-25 16:15:23,817 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=97, PETRI_PLACES=36, PETRI_TRANSITIONS=23} [2023-08-25 16:15:23,817 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -16 predicate places. [2023-08-25 16:15:23,817 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 23 transitions, 97 flow [2023-08-25 16:15:23,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 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) [2023-08-25 16:15:23,818 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 16:15:23,818 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 16:15:23,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 16:15:23,818 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 16:15:23,818 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 16:15:23,818 INFO L85 PathProgramCache]: Analyzing trace with hash 768553699, now seen corresponding path program 2 times [2023-08-25 16:15:23,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 16:15:23,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042473660] [2023-08-25 16:15:23,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 16:15:23,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 16:15:23,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 16:15:23,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 16:15:23,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 16:15:23,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042473660] [2023-08-25 16:15:23,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042473660] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 16:15:23,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 16:15:23,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 16:15:23,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381060224] [2023-08-25 16:15:23,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 16:15:23,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 16:15:23,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 16:15:23,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 16:15:23,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 16:15:23,864 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 221 [2023-08-25 16:15:23,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 23 transitions, 97 flow. Second operand has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 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) [2023-08-25 16:15:23,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 16:15:23,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 221 [2023-08-25 16:15:23,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 16:15:23,911 INFO L124 PetriNetUnfolderBase]: 58/128 cut-off events. [2023-08-25 16:15:23,912 INFO L125 PetriNetUnfolderBase]: For 127/127 co-relation queries the response was YES. [2023-08-25 16:15:23,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 395 conditions, 128 events. 58/128 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 377 event pairs, 17 based on Foata normal form. 1/129 useless extension candidates. Maximal degree in co-relation 386. Up to 49 conditions per place. [2023-08-25 16:15:23,912 INFO L140 encePairwiseOnDemand]: 218/221 looper letters, 0 selfloop transitions, 0 changer transitions 36/36 dead transitions. [2023-08-25 16:15:23,912 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 36 transitions, 236 flow [2023-08-25 16:15:23,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 16:15:23,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 16:15:23,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 326 transitions. [2023-08-25 16:15:23,914 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36877828054298645 [2023-08-25 16:15:23,914 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 326 transitions. [2023-08-25 16:15:23,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 326 transitions. [2023-08-25 16:15:23,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 16:15:23,914 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 326 transitions. [2023-08-25 16:15:23,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 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) [2023-08-25 16:15:23,916 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 221.0) internal successors, (1105), 5 states have internal predecessors, (1105), 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) [2023-08-25 16:15:23,916 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 221.0) internal successors, (1105), 5 states have internal predecessors, (1105), 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) [2023-08-25 16:15:23,917 INFO L175 Difference]: Start difference. First operand has 36 places, 23 transitions, 97 flow. Second operand 4 states and 326 transitions. [2023-08-25 16:15:23,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 36 transitions, 236 flow [2023-08-25 16:15:23,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 36 transitions, 234 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 16:15:23,918 INFO L231 Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow [2023-08-25 16:15:23,918 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=36, PETRI_TRANSITIONS=0} [2023-08-25 16:15:23,918 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -16 predicate places. [2023-08-25 16:15:23,919 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 0 transitions, 0 flow [2023-08-25 16:15:23,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 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) [2023-08-25 16:15:23,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (42 of 43 remaining) [2023-08-25 16:15:23,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (41 of 43 remaining) [2023-08-25 16:15:23,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (40 of 43 remaining) [2023-08-25 16:15:23,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (39 of 43 remaining) [2023-08-25 16:15:23,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4ASSERT_VIOLATIONDATA_RACE (38 of 43 remaining) [2023-08-25 16:15:23,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (37 of 43 remaining) [2023-08-25 16:15:23,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (36 of 43 remaining) [2023-08-25 16:15:23,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (35 of 43 remaining) [2023-08-25 16:15:23,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (34 of 43 remaining) [2023-08-25 16:15:23,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err4ASSERT_VIOLATIONDATA_RACE (33 of 43 remaining) [2023-08-25 16:15:23,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (32 of 43 remaining) [2023-08-25 16:15:23,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (31 of 43 remaining) [2023-08-25 16:15:23,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (30 of 43 remaining) [2023-08-25 16:15:23,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (29 of 43 remaining) [2023-08-25 16:15:23,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4ASSERT_VIOLATIONDATA_RACE (28 of 43 remaining) [2023-08-25 16:15:23,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (27 of 43 remaining) [2023-08-25 16:15:23,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (26 of 43 remaining) [2023-08-25 16:15:23,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (25 of 43 remaining) [2023-08-25 16:15:23,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (24 of 43 remaining) [2023-08-25 16:15:23,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (23 of 43 remaining) [2023-08-25 16:15:23,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (22 of 43 remaining) [2023-08-25 16:15:23,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (21 of 43 remaining) [2023-08-25 16:15:23,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (20 of 43 remaining) [2023-08-25 16:15:23,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (19 of 43 remaining) [2023-08-25 16:15:23,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONASSERT (18 of 43 remaining) [2023-08-25 16:15:23,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 43 remaining) [2023-08-25 16:15:23,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 43 remaining) [2023-08-25 16:15:23,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 43 remaining) [2023-08-25 16:15:23,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (14 of 43 remaining) [2023-08-25 16:15:23,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (13 of 43 remaining) [2023-08-25 16:15:23,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (12 of 43 remaining) [2023-08-25 16:15:23,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (11 of 43 remaining) [2023-08-25 16:15:23,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4ASSERT_VIOLATIONDATA_RACE (10 of 43 remaining) [2023-08-25 16:15:23,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (9 of 43 remaining) [2023-08-25 16:15:23,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (8 of 43 remaining) [2023-08-25 16:15:23,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (7 of 43 remaining) [2023-08-25 16:15:23,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (6 of 43 remaining) [2023-08-25 16:15:23,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err4ASSERT_VIOLATIONDATA_RACE (5 of 43 remaining) [2023-08-25 16:15:23,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (4 of 43 remaining) [2023-08-25 16:15:23,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (3 of 43 remaining) [2023-08-25 16:15:23,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (2 of 43 remaining) [2023-08-25 16:15:23,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (1 of 43 remaining) [2023-08-25 16:15:23,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4ASSERT_VIOLATIONDATA_RACE (0 of 43 remaining) [2023-08-25 16:15:23,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 16:15:23,926 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 16:15:23,930 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 16:15:23,930 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 16:15:23,933 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 04:15:23 BasicIcfg [2023-08-25 16:15:23,933 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 16:15:23,933 INFO L158 Benchmark]: Toolchain (without parser) took 7280.43ms. Allocated memory was 392.2MB in the beginning and 480.2MB in the end (delta: 88.1MB). Free memory was 366.9MB in the beginning and 394.1MB in the end (delta: -27.2MB). Peak memory consumption was 61.6MB. Max. memory is 16.0GB. [2023-08-25 16:15:23,934 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 392.2MB. Free memory is still 368.5MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 16:15:23,934 INFO L158 Benchmark]: CACSL2BoogieTranslator took 442.61ms. Allocated memory is still 392.2MB. Free memory was 366.6MB in the beginning and 346.0MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-25 16:15:23,934 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.45ms. Allocated memory is still 392.2MB. Free memory was 346.0MB in the beginning and 343.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 16:15:23,934 INFO L158 Benchmark]: Boogie Preprocessor took 22.99ms. Allocated memory is still 392.2MB. Free memory was 343.9MB in the beginning and 342.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 16:15:23,934 INFO L158 Benchmark]: RCFGBuilder took 544.96ms. Allocated memory is still 392.2MB. Free memory was 342.1MB in the beginning and 363.8MB in the end (delta: -21.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.0GB. [2023-08-25 16:15:23,935 INFO L158 Benchmark]: TraceAbstraction took 6217.47ms. Allocated memory was 392.2MB in the beginning and 480.2MB in the end (delta: 88.1MB). Free memory was 363.4MB in the beginning and 394.1MB in the end (delta: -30.8MB). Peak memory consumption was 57.3MB. Max. memory is 16.0GB. [2023-08-25 16:15:23,936 INFO L338 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 392.2MB. Free memory is still 368.5MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 442.61ms. Allocated memory is still 392.2MB. Free memory was 366.6MB in the beginning and 346.0MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 47.45ms. Allocated memory is still 392.2MB. Free memory was 346.0MB in the beginning and 343.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 22.99ms. Allocated memory is still 392.2MB. Free memory was 343.9MB in the beginning and 342.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 544.96ms. Allocated memory is still 392.2MB. Free memory was 342.1MB in the beginning and 363.8MB in the end (delta: -21.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.0GB. * TraceAbstraction took 6217.47ms. Allocated memory was 392.2MB in the beginning and 480.2MB in the end (delta: 88.1MB). Free memory was 363.4MB in the beginning and 394.1MB in the end (delta: -30.8MB). Peak memory consumption was 57.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.2s, 121 PlacesBefore, 52 PlacesAfterwards, 114 TransitionsBefore, 42 TransitionsAfterwards, 4158 CoEnabledTransitionPairs, 7 FixpointIterations, 20 TrivialSequentialCompositions, 67 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 3 ChoiceCompositions, 104 TotalNumberOfCompositions, 16719 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6185, independent: 5845, independent conditional: 0, independent unconditional: 5845, dependent: 340, dependent conditional: 0, dependent unconditional: 340, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2259, independent: 2181, independent conditional: 0, independent unconditional: 2181, dependent: 78, dependent conditional: 0, dependent unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6185, independent: 3664, independent conditional: 0, independent unconditional: 3664, dependent: 262, dependent conditional: 0, dependent unconditional: 262, unknown: 2259, unknown conditional: 0, unknown unconditional: 2259] , Statistics on independence cache: Total cache size (in pairs): 278, Positive cache size: 245, Positive conditional cache size: 0, Positive unconditional cache size: 245, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 730]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 730]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 735]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 735]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 742]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 747]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 747]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 752]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 752]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 759]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 764]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 764]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 769]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 769]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 791]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 791]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 793]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 797]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 797]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 797]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 797]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 797]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 799]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 17]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 154 locations, 43 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: 6.1s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 72 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 72 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 352 IncrementalHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 0 mSDtfsCounter, 352 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=116occurred in iteration=7, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 228 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 25 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 16:15:23,957 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...