/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/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 16:20:49,624 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 16:20:49,705 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 16:20:49,710 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 16:20:49,710 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 16:20:49,740 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 16:20:49,741 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 16:20:49,741 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 16:20:49,742 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 16:20:49,745 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 16:20:49,745 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 16:20:49,745 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 16:20:49,746 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 16:20:49,747 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 16:20:49,747 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 16:20:49,747 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 16:20:49,747 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 16:20:49,748 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 16:20:49,748 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 16:20:49,748 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 16:20:49,748 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 16:20:49,748 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 16:20:49,749 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 16:20:49,749 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 16:20:49,749 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 16:20:49,750 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 16:20:49,750 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 16:20:49,750 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 16:20:49,750 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 16:20:49,750 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 16:20:49,751 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 16:20:49,751 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 16:20:49,752 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 16:20:49,752 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 16:20:49,752 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 16:20:49,752 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 16:20:50,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 16:20:50,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 16:20:50,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 16:20:50,094 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 16:20:50,095 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 16:20:50,096 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-25 16:20:51,192 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 16:20:51,457 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 16:20:51,457 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-25 16:20:51,470 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c18b5f505/0108f21acbda4cbe950804a07030ddc5/FLAGf9188b47e [2023-08-25 16:20:51,482 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c18b5f505/0108f21acbda4cbe950804a07030ddc5 [2023-08-25 16:20:51,484 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 16:20:51,485 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 16:20:51,486 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 16:20:51,486 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 16:20:51,488 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 16:20:51,489 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 04:20:51" (1/1) ... [2023-08-25 16:20:51,490 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c8d2b92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:20:51, skipping insertion in model container [2023-08-25 16:20:51,490 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 04:20:51" (1/1) ... [2023-08-25 16:20:51,537 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 16:20:51,887 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 16:20:51,897 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 16:20:51,926 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 16:20:51,927 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 16:20:51,968 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 16:20:52,000 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 16:20:52,000 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 16:20:52,007 INFO L206 MainTranslator]: Completed translation [2023-08-25 16:20:52,007 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:20:52 WrapperNode [2023-08-25 16:20:52,007 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 16:20:52,009 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 16:20:52,009 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 16:20:52,009 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 16:20:52,015 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:20:52" (1/1) ... [2023-08-25 16:20:52,044 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:20:52" (1/1) ... [2023-08-25 16:20:52,071 INFO L138 Inliner]: procedures = 177, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 122 [2023-08-25 16:20:52,072 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 16:20:52,073 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 16:20:52,073 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 16:20:52,074 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 16:20:52,082 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:20:52" (1/1) ... [2023-08-25 16:20:52,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:20:52" (1/1) ... [2023-08-25 16:20:52,094 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:20:52" (1/1) ... [2023-08-25 16:20:52,094 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:20:52" (1/1) ... [2023-08-25 16:20:52,100 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:20:52" (1/1) ... [2023-08-25 16:20:52,101 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:20:52" (1/1) ... [2023-08-25 16:20:52,103 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:20:52" (1/1) ... [2023-08-25 16:20:52,104 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:20:52" (1/1) ... [2023-08-25 16:20:52,132 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 16:20:52,133 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 16:20:52,133 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 16:20:52,133 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 16:20:52,134 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:20:52" (1/1) ... [2023-08-25 16:20:52,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 16:20:52,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 16:20:52,170 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 16:20:52,194 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 16:20:52,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 16:20:52,210 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 16:20:52,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 16:20:52,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 16:20:52,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 16:20:52,211 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-25 16:20:52,211 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-25 16:20:52,211 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-25 16:20:52,211 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-25 16:20:52,211 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-25 16:20:52,211 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-25 16:20:52,211 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-08-25 16:20:52,211 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-08-25 16:20:52,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 16:20:52,212 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 16:20:52,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 16:20:52,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 16:20:52,214 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 16:20:52,377 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 16:20:52,379 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 16:20:52,682 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 16:20:52,856 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 16:20:52,856 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 16:20:52,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 04:20:52 BoogieIcfgContainer [2023-08-25 16:20:52,858 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 16:20:52,861 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 16:20:52,861 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 16:20:52,863 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 16:20:52,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 04:20:51" (1/3) ... [2023-08-25 16:20:52,864 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ac5246e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 04:20:52, skipping insertion in model container [2023-08-25 16:20:52,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:20:52" (2/3) ... [2023-08-25 16:20:52,865 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ac5246e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 04:20:52, skipping insertion in model container [2023-08-25 16:20:52,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 04:20:52" (3/3) ... [2023-08-25 16:20:52,866 INFO L112 eAbstractionObserver]: Analyzing ICFG thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-25 16:20:52,881 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 16:20:52,881 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2023-08-25 16:20:52,882 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 16:20:52,932 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 16:20:52,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 141 transitions, 302 flow [2023-08-25 16:20:53,023 INFO L124 PetriNetUnfolderBase]: 3/137 cut-off events. [2023-08-25 16:20:53,023 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 16:20:53,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 137 events. 3/137 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 166 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 118. Up to 2 conditions per place. [2023-08-25 16:20:53,030 INFO L82 GeneralOperation]: Start removeDead. Operand has 151 places, 141 transitions, 302 flow [2023-08-25 16:20:53,034 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 147 places, 137 transitions, 286 flow [2023-08-25 16:20:53,037 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 16:20:53,044 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 147 places, 137 transitions, 286 flow [2023-08-25 16:20:53,046 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 147 places, 137 transitions, 286 flow [2023-08-25 16:20:53,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 137 transitions, 286 flow [2023-08-25 16:20:53,070 INFO L124 PetriNetUnfolderBase]: 3/137 cut-off events. [2023-08-25 16:20:53,070 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 16:20:53,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 137 events. 3/137 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 166 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 118. Up to 2 conditions per place. [2023-08-25 16:20:53,075 INFO L119 LiptonReduction]: Number of co-enabled transitions 6512 [2023-08-25 16:20:58,202 INFO L134 LiptonReduction]: Checked pairs total: 22732 [2023-08-25 16:20:58,203 INFO L136 LiptonReduction]: Total number of compositions: 132 [2023-08-25 16:20:58,213 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 16:20:58,218 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;@1e85cf0a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 16:20:58,219 INFO L358 AbstractCegarLoop]: Starting to check reachability of 54 error locations. [2023-08-25 16:20:58,221 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 16:20:58,221 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-25 16:20:58,221 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 16:20:58,221 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 16:20:58,222 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 16:20:58,222 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-25 16:20:58,226 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 16:20:58,226 INFO L85 PathProgramCache]: Analyzing trace with hash 742526, now seen corresponding path program 1 times [2023-08-25 16:20:58,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 16:20:58,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751544746] [2023-08-25 16:20:58,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 16:20:58,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 16:20:58,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 16:20:58,410 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 16:20:58,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 16:20:58,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751544746] [2023-08-25 16:20:58,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751544746] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 16:20:58,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 16:20:58,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 16:20:58,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382561410] [2023-08-25 16:20:58,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 16:20:58,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 16:20:58,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 16:20:58,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 16:20:58,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 16:20:58,440 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 273 [2023-08-25 16:20:58,442 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 53 transitions, 118 flow. Second operand has 2 states, 2 states have (on average 93.5) internal successors, (187), 2 states have internal predecessors, (187), 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 16:20:58,442 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 16:20:58,442 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 273 [2023-08-25 16:20:58,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 16:20:58,916 INFO L124 PetriNetUnfolderBase]: 3159/4352 cut-off events. [2023-08-25 16:20:58,917 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2023-08-25 16:20:58,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8880 conditions, 4352 events. 3159/4352 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 17933 event pairs, 3159 based on Foata normal form. 0/4096 useless extension candidates. Maximal degree in co-relation 8868. Up to 4353 conditions per place. [2023-08-25 16:20:58,943 INFO L140 encePairwiseOnDemand]: 243/273 looper letters, 22 selfloop transitions, 0 changer transitions 1/23 dead transitions. [2023-08-25 16:20:58,944 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 23 transitions, 104 flow [2023-08-25 16:20:58,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 16:20:58,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 16:20:58,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 237 transitions. [2023-08-25 16:20:58,954 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4340659340659341 [2023-08-25 16:20:58,955 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 237 transitions. [2023-08-25 16:20:58,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 237 transitions. [2023-08-25 16:20:58,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 16:20:58,958 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 237 transitions. [2023-08-25 16:20:58,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 118.5) internal successors, (237), 2 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 16:20:58,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 273.0) internal successors, (819), 3 states have internal predecessors, (819), 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 16:20:58,964 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 273.0) internal successors, (819), 3 states have internal predecessors, (819), 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 16:20:58,965 INFO L175 Difference]: Start difference. First operand has 65 places, 53 transitions, 118 flow. Second operand 2 states and 237 transitions. [2023-08-25 16:20:58,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 23 transitions, 104 flow [2023-08-25 16:20:58,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 23 transitions, 100 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 16:20:58,971 INFO L231 Difference]: Finished difference. Result has 33 places, 22 transitions, 52 flow [2023-08-25 16:20:58,973 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=52, PETRI_PLACES=33, PETRI_TRANSITIONS=22} [2023-08-25 16:20:58,976 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, -32 predicate places. [2023-08-25 16:20:58,976 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 22 transitions, 52 flow [2023-08-25 16:20:58,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 93.5) internal successors, (187), 2 states have internal predecessors, (187), 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 16:20:58,976 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 16:20:58,977 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 16:20:58,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 16:20:58,977 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-25 16:20:58,977 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 16:20:58,978 INFO L85 PathProgramCache]: Analyzing trace with hash 261575593, now seen corresponding path program 1 times [2023-08-25 16:20:58,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 16:20:58,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125228715] [2023-08-25 16:20:58,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 16:20:58,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 16:20:59,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 16:20:59,147 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 16:20:59,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 16:20:59,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125228715] [2023-08-25 16:20:59,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125228715] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 16:20:59,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 16:20:59,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 16:20:59,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060025055] [2023-08-25 16:20:59,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 16:20:59,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 16:20:59,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 16:20:59,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 16:20:59,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 16:20:59,153 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 273 [2023-08-25 16:20:59,154 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 22 transitions, 52 flow. Second operand has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 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 16:20:59,154 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 16:20:59,154 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 273 [2023-08-25 16:20:59,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 16:20:59,438 INFO L124 PetriNetUnfolderBase]: 2183/3056 cut-off events. [2023-08-25 16:20:59,439 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 16:20:59,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6285 conditions, 3056 events. 2183/3056 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 12988 event pairs, 455 based on Foata normal form. 64/3120 useless extension candidates. Maximal degree in co-relation 6282. Up to 2529 conditions per place. [2023-08-25 16:20:59,455 INFO L140 encePairwiseOnDemand]: 270/273 looper letters, 32 selfloop transitions, 2 changer transitions 0/34 dead transitions. [2023-08-25 16:20:59,455 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 34 transitions, 146 flow [2023-08-25 16:20:59,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 16:20:59,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 16:20:59,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 308 transitions. [2023-08-25 16:20:59,458 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37606837606837606 [2023-08-25 16:20:59,458 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 308 transitions. [2023-08-25 16:20:59,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 308 transitions. [2023-08-25 16:20:59,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 16:20:59,459 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 308 transitions. [2023-08-25 16:20:59,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 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 16:20:59,462 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 273.0) internal successors, (1092), 4 states have internal predecessors, (1092), 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 16:20:59,462 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 273.0) internal successors, (1092), 4 states have internal predecessors, (1092), 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 16:20:59,462 INFO L175 Difference]: Start difference. First operand has 33 places, 22 transitions, 52 flow. Second operand 3 states and 308 transitions. [2023-08-25 16:20:59,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 34 transitions, 146 flow [2023-08-25 16:20:59,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 34 transitions, 146 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 16:20:59,464 INFO L231 Difference]: Finished difference. Result has 35 places, 22 transitions, 60 flow [2023-08-25 16:20:59,464 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=60, PETRI_PLACES=35, PETRI_TRANSITIONS=22} [2023-08-25 16:20:59,465 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, -30 predicate places. [2023-08-25 16:20:59,465 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 22 transitions, 60 flow [2023-08-25 16:20:59,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 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 16:20:59,465 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 16:20:59,465 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 16:20:59,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 16:20:59,466 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-25 16:20:59,466 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 16:20:59,466 INFO L85 PathProgramCache]: Analyzing trace with hash -481092700, now seen corresponding path program 1 times [2023-08-25 16:20:59,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 16:20:59,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802116523] [2023-08-25 16:20:59,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 16:20:59,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 16:20:59,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 16:20:59,569 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 16:20:59,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 16:20:59,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802116523] [2023-08-25 16:20:59,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802116523] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 16:20:59,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 16:20:59,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 16:20:59,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231034936] [2023-08-25 16:20:59,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 16:20:59,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 16:20:59,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 16:20:59,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 16:20:59,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 16:20:59,572 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 273 [2023-08-25 16:20:59,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 22 transitions, 60 flow. Second operand has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 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 16:20:59,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 16:20:59,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 273 [2023-08-25 16:20:59,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 16:20:59,819 INFO L124 PetriNetUnfolderBase]: 2387/3404 cut-off events. [2023-08-25 16:20:59,819 INFO L125 PetriNetUnfolderBase]: For 392/392 co-relation queries the response was YES. [2023-08-25 16:20:59,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7448 conditions, 3404 events. 2387/3404 cut-off events. For 392/392 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 15257 event pairs, 795 based on Foata normal form. 192/3596 useless extension candidates. Maximal degree in co-relation 7443. Up to 1181 conditions per place. [2023-08-25 16:20:59,833 INFO L140 encePairwiseOnDemand]: 269/273 looper letters, 40 selfloop transitions, 3 changer transitions 5/48 dead transitions. [2023-08-25 16:20:59,834 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 48 transitions, 217 flow [2023-08-25 16:20:59,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 16:20:59,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 16:20:59,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 410 transitions. [2023-08-25 16:20:59,836 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37545787545787546 [2023-08-25 16:20:59,836 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 410 transitions. [2023-08-25 16:20:59,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 410 transitions. [2023-08-25 16:20:59,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 16:20:59,836 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 410 transitions. [2023-08-25 16:20:59,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 102.5) internal successors, (410), 4 states have internal predecessors, (410), 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 16:20:59,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 273.0) internal successors, (1365), 5 states have internal predecessors, (1365), 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 16:20:59,840 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 273.0) internal successors, (1365), 5 states have internal predecessors, (1365), 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 16:20:59,840 INFO L175 Difference]: Start difference. First operand has 35 places, 22 transitions, 60 flow. Second operand 4 states and 410 transitions. [2023-08-25 16:20:59,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 48 transitions, 217 flow [2023-08-25 16:20:59,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 48 transitions, 211 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 16:20:59,842 INFO L231 Difference]: Finished difference. Result has 38 places, 22 transitions, 70 flow [2023-08-25 16:20:59,843 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=70, PETRI_PLACES=38, PETRI_TRANSITIONS=22} [2023-08-25 16:20:59,843 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, -27 predicate places. [2023-08-25 16:20:59,843 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 22 transitions, 70 flow [2023-08-25 16:20:59,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 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 16:20:59,844 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 16:20:59,844 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 16:20:59,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 16:20:59,844 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-25 16:20:59,845 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 16:20:59,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1848104560, now seen corresponding path program 1 times [2023-08-25 16:20:59,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 16:20:59,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619879815] [2023-08-25 16:20:59,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 16:20:59,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 16:20:59,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 16:20:59,924 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 16:20:59,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 16:20:59,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619879815] [2023-08-25 16:20:59,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619879815] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 16:20:59,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 16:20:59,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 16:20:59,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821550115] [2023-08-25 16:20:59,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 16:20:59,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 16:20:59,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 16:20:59,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 16:20:59,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 16:20:59,926 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 273 [2023-08-25 16:20:59,927 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 22 transitions, 70 flow. Second operand has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 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 16:20:59,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 16:20:59,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 273 [2023-08-25 16:20:59,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 16:21:00,120 INFO L124 PetriNetUnfolderBase]: 1391/2072 cut-off events. [2023-08-25 16:21:00,120 INFO L125 PetriNetUnfolderBase]: For 1030/1030 co-relation queries the response was YES. [2023-08-25 16:21:00,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4970 conditions, 2072 events. 1391/2072 cut-off events. For 1030/1030 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 9151 event pairs, 519 based on Foata normal form. 96/2168 useless extension candidates. Maximal degree in co-relation 4963. Up to 741 conditions per place. [2023-08-25 16:21:00,127 INFO L140 encePairwiseOnDemand]: 269/273 looper letters, 38 selfloop transitions, 3 changer transitions 11/52 dead transitions. [2023-08-25 16:21:00,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 52 transitions, 260 flow [2023-08-25 16:21:00,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 16:21:00,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 16:21:00,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 414 transitions. [2023-08-25 16:21:00,130 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3791208791208791 [2023-08-25 16:21:00,130 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 414 transitions. [2023-08-25 16:21:00,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 414 transitions. [2023-08-25 16:21:00,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 16:21:00,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 414 transitions. [2023-08-25 16:21:00,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 103.5) internal successors, (414), 4 states have internal predecessors, (414), 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 16:21:00,133 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 273.0) internal successors, (1365), 5 states have internal predecessors, (1365), 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 16:21:00,134 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 273.0) internal successors, (1365), 5 states have internal predecessors, (1365), 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 16:21:00,134 INFO L175 Difference]: Start difference. First operand has 38 places, 22 transitions, 70 flow. Second operand 4 states and 414 transitions. [2023-08-25 16:21:00,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 52 transitions, 260 flow [2023-08-25 16:21:00,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 52 transitions, 238 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-25 16:21:00,138 INFO L231 Difference]: Finished difference. Result has 39 places, 22 transitions, 72 flow [2023-08-25 16:21:00,138 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=72, PETRI_PLACES=39, PETRI_TRANSITIONS=22} [2023-08-25 16:21:00,139 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, -26 predicate places. [2023-08-25 16:21:00,139 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 22 transitions, 72 flow [2023-08-25 16:21:00,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 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 16:21:00,139 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 16:21:00,140 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 16:21:00,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 16:21:00,140 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-25 16:21:00,140 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 16:21:00,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1208716391, now seen corresponding path program 1 times [2023-08-25 16:21:00,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 16:21:00,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803074058] [2023-08-25 16:21:00,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 16:21:00,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 16:21:00,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 16:21:00,194 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 16:21:00,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 16:21:00,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803074058] [2023-08-25 16:21:00,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803074058] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 16:21:00,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 16:21:00,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 16:21:00,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894072180] [2023-08-25 16:21:00,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 16:21:00,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 16:21:00,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 16:21:00,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 16:21:00,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 16:21:00,197 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 273 [2023-08-25 16:21:00,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 22 transitions, 72 flow. Second operand has 4 states, 4 states have (on average 93.75) internal successors, (375), 4 states have internal predecessors, (375), 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 16:21:00,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 16:21:00,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 273 [2023-08-25 16:21:00,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 16:21:00,296 INFO L124 PetriNetUnfolderBase]: 627/984 cut-off events. [2023-08-25 16:21:00,296 INFO L125 PetriNetUnfolderBase]: For 509/509 co-relation queries the response was YES. [2023-08-25 16:21:00,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2310 conditions, 984 events. 627/984 cut-off events. For 509/509 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3687 event pairs, 347 based on Foata normal form. 48/1032 useless extension candidates. Maximal degree in co-relation 2303. Up to 408 conditions per place. [2023-08-25 16:21:00,300 INFO L140 encePairwiseOnDemand]: 269/273 looper letters, 22 selfloop transitions, 3 changer transitions 17/42 dead transitions. [2023-08-25 16:21:00,300 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 42 transitions, 216 flow [2023-08-25 16:21:00,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 16:21:00,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 16:21:00,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 404 transitions. [2023-08-25 16:21:00,302 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36996336996337 [2023-08-25 16:21:00,302 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 404 transitions. [2023-08-25 16:21:00,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 404 transitions. [2023-08-25 16:21:00,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 16:21:00,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 404 transitions. [2023-08-25 16:21:00,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 101.0) internal successors, (404), 4 states have internal predecessors, (404), 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 16:21:00,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 273.0) internal successors, (1365), 5 states have internal predecessors, (1365), 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 16:21:00,306 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 273.0) internal successors, (1365), 5 states have internal predecessors, (1365), 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 16:21:00,306 INFO L175 Difference]: Start difference. First operand has 39 places, 22 transitions, 72 flow. Second operand 4 states and 404 transitions. [2023-08-25 16:21:00,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 42 transitions, 216 flow [2023-08-25 16:21:00,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 42 transitions, 194 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-25 16:21:00,308 INFO L231 Difference]: Finished difference. Result has 40 places, 22 transitions, 74 flow [2023-08-25 16:21:00,308 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=74, PETRI_PLACES=40, PETRI_TRANSITIONS=22} [2023-08-25 16:21:00,309 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, -25 predicate places. [2023-08-25 16:21:00,309 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 22 transitions, 74 flow [2023-08-25 16:21:00,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.75) internal successors, (375), 4 states have internal predecessors, (375), 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 16:21:00,309 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 16:21:00,310 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 16:21:00,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 16:21:00,310 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-25 16:21:00,310 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 16:21:00,310 INFO L85 PathProgramCache]: Analyzing trace with hash 667489626, now seen corresponding path program 1 times [2023-08-25 16:21:00,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 16:21:00,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549756342] [2023-08-25 16:21:00,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 16:21:00,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 16:21:00,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 16:21:00,364 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 16:21:00,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 16:21:00,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549756342] [2023-08-25 16:21:00,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549756342] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 16:21:00,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 16:21:00,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 16:21:00,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946953096] [2023-08-25 16:21:00,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 16:21:00,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 16:21:00,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 16:21:00,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 16:21:00,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 16:21:00,367 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 273 [2023-08-25 16:21:00,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 22 transitions, 74 flow. Second operand has 4 states, 4 states have (on average 94.25) internal successors, (377), 4 states have internal predecessors, (377), 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 16:21:00,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 16:21:00,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 273 [2023-08-25 16:21:00,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 16:21:00,412 INFO L124 PetriNetUnfolderBase]: 147/246 cut-off events. [2023-08-25 16:21:00,412 INFO L125 PetriNetUnfolderBase]: For 148/148 co-relation queries the response was YES. [2023-08-25 16:21:00,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 548 conditions, 246 events. 147/246 cut-off events. For 148/148 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 644 event pairs, 83 based on Foata normal form. 24/270 useless extension candidates. Maximal degree in co-relation 541. Up to 150 conditions per place. [2023-08-25 16:21:00,413 INFO L140 encePairwiseOnDemand]: 270/273 looper letters, 0 selfloop transitions, 0 changer transitions 25/25 dead transitions. [2023-08-25 16:21:00,413 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 25 transitions, 124 flow [2023-08-25 16:21:00,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 16:21:00,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 16:21:00,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 387 transitions. [2023-08-25 16:21:00,415 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3543956043956044 [2023-08-25 16:21:00,415 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 387 transitions. [2023-08-25 16:21:00,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 387 transitions. [2023-08-25 16:21:00,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 16:21:00,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 387 transitions. [2023-08-25 16:21:00,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 96.75) internal successors, (387), 4 states have internal predecessors, (387), 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 16:21:00,417 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 273.0) internal successors, (1365), 5 states have internal predecessors, (1365), 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 16:21:00,418 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 273.0) internal successors, (1365), 5 states have internal predecessors, (1365), 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 16:21:00,418 INFO L175 Difference]: Start difference. First operand has 40 places, 22 transitions, 74 flow. Second operand 4 states and 387 transitions. [2023-08-25 16:21:00,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 25 transitions, 124 flow [2023-08-25 16:21:00,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 25 transitions, 108 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-08-25 16:21:00,419 INFO L231 Difference]: Finished difference. Result has 34 places, 0 transitions, 0 flow [2023-08-25 16:21:00,419 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=34, PETRI_TRANSITIONS=0} [2023-08-25 16:21:00,420 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, -31 predicate places. [2023-08-25 16:21:00,420 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 0 transitions, 0 flow [2023-08-25 16:21:00,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.25) internal successors, (377), 4 states have internal predecessors, (377), 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 16:21:00,422 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (53 of 54 remaining) [2023-08-25 16:21:00,423 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (52 of 54 remaining) [2023-08-25 16:21:00,423 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (51 of 54 remaining) [2023-08-25 16:21:00,423 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (50 of 54 remaining) [2023-08-25 16:21:00,423 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4ASSERT_VIOLATIONDATA_RACE (49 of 54 remaining) [2023-08-25 16:21:00,423 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (48 of 54 remaining) [2023-08-25 16:21:00,423 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (47 of 54 remaining) [2023-08-25 16:21:00,423 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (46 of 54 remaining) [2023-08-25 16:21:00,424 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (45 of 54 remaining) [2023-08-25 16:21:00,424 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err4ASSERT_VIOLATIONDATA_RACE (44 of 54 remaining) [2023-08-25 16:21:00,424 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (43 of 54 remaining) [2023-08-25 16:21:00,424 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (42 of 54 remaining) [2023-08-25 16:21:00,424 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (41 of 54 remaining) [2023-08-25 16:21:00,424 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (40 of 54 remaining) [2023-08-25 16:21:00,424 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4ASSERT_VIOLATIONDATA_RACE (39 of 54 remaining) [2023-08-25 16:21:00,425 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONDATA_RACE (38 of 54 remaining) [2023-08-25 16:21:00,425 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONDATA_RACE (37 of 54 remaining) [2023-08-25 16:21:00,425 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err2ASSERT_VIOLATIONDATA_RACE (36 of 54 remaining) [2023-08-25 16:21:00,425 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err3ASSERT_VIOLATIONDATA_RACE (35 of 54 remaining) [2023-08-25 16:21:00,425 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err4ASSERT_VIOLATIONDATA_RACE (34 of 54 remaining) [2023-08-25 16:21:00,425 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (33 of 54 remaining) [2023-08-25 16:21:00,425 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (32 of 54 remaining) [2023-08-25 16:21:00,425 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (31 of 54 remaining) [2023-08-25 16:21:00,426 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (30 of 54 remaining) [2023-08-25 16:21:00,426 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (29 of 54 remaining) [2023-08-25 16:21:00,426 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (28 of 54 remaining) [2023-08-25 16:21:00,426 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (27 of 54 remaining) [2023-08-25 16:21:00,426 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (26 of 54 remaining) [2023-08-25 16:21:00,426 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (25 of 54 remaining) [2023-08-25 16:21:00,426 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONASSERT (24 of 54 remaining) [2023-08-25 16:21:00,426 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 54 remaining) [2023-08-25 16:21:00,427 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 54 remaining) [2023-08-25 16:21:00,427 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 54 remaining) [2023-08-25 16:21:00,427 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 54 remaining) [2023-08-25 16:21:00,427 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (19 of 54 remaining) [2023-08-25 16:21:00,427 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (18 of 54 remaining) [2023-08-25 16:21:00,427 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (17 of 54 remaining) [2023-08-25 16:21:00,427 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (16 of 54 remaining) [2023-08-25 16:21:00,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4ASSERT_VIOLATIONDATA_RACE (15 of 54 remaining) [2023-08-25 16:21:00,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (14 of 54 remaining) [2023-08-25 16:21:00,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (13 of 54 remaining) [2023-08-25 16:21:00,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (12 of 54 remaining) [2023-08-25 16:21:00,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (11 of 54 remaining) [2023-08-25 16:21:00,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err4ASSERT_VIOLATIONDATA_RACE (10 of 54 remaining) [2023-08-25 16:21:00,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (9 of 54 remaining) [2023-08-25 16:21:00,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (8 of 54 remaining) [2023-08-25 16:21:00,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (7 of 54 remaining) [2023-08-25 16:21:00,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (6 of 54 remaining) [2023-08-25 16:21:00,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4ASSERT_VIOLATIONDATA_RACE (5 of 54 remaining) [2023-08-25 16:21:00,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONDATA_RACE (4 of 54 remaining) [2023-08-25 16:21:00,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONDATA_RACE (3 of 54 remaining) [2023-08-25 16:21:00,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err2ASSERT_VIOLATIONDATA_RACE (2 of 54 remaining) [2023-08-25 16:21:00,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err3ASSERT_VIOLATIONDATA_RACE (1 of 54 remaining) [2023-08-25 16:21:00,430 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err4ASSERT_VIOLATIONDATA_RACE (0 of 54 remaining) [2023-08-25 16:21:00,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 16:21:00,430 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-08-25 16:21:00,435 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 16:21:00,435 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 16:21:00,438 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 04:21:00 BasicIcfg [2023-08-25 16:21:00,438 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 16:21:00,439 INFO L158 Benchmark]: Toolchain (without parser) took 8953.23ms. Allocated memory was 375.4MB in the beginning and 570.4MB in the end (delta: 195.0MB). Free memory was 350.8MB in the beginning and 383.5MB in the end (delta: -32.8MB). Peak memory consumption was 163.6MB. Max. memory is 16.0GB. [2023-08-25 16:21:00,439 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 375.4MB. Free memory is still 351.8MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 16:21:00,439 INFO L158 Benchmark]: CACSL2BoogieTranslator took 521.39ms. Allocated memory is still 375.4MB. Free memory was 350.5MB in the beginning and 329.5MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-25 16:21:00,439 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.83ms. Allocated memory is still 375.4MB. Free memory was 329.5MB in the beginning and 327.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 16:21:00,440 INFO L158 Benchmark]: Boogie Preprocessor took 59.02ms. Allocated memory is still 375.4MB. Free memory was 327.0MB in the beginning and 325.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 16:21:00,440 INFO L158 Benchmark]: RCFGBuilder took 725.79ms. Allocated memory is still 375.4MB. Free memory was 325.2MB in the beginning and 339.0MB in the end (delta: -13.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. [2023-08-25 16:21:00,440 INFO L158 Benchmark]: TraceAbstraction took 7577.38ms. Allocated memory was 375.4MB in the beginning and 570.4MB in the end (delta: 195.0MB). Free memory was 338.5MB in the beginning and 383.5MB in the end (delta: -45.0MB). Peak memory consumption was 151.1MB. Max. memory is 16.0GB. [2023-08-25 16:21:00,442 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 375.4MB. Free memory is still 351.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 521.39ms. Allocated memory is still 375.4MB. Free memory was 350.5MB in the beginning and 329.5MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 63.83ms. Allocated memory is still 375.4MB. Free memory was 329.5MB in the beginning and 327.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 59.02ms. Allocated memory is still 375.4MB. Free memory was 327.0MB in the beginning and 325.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 725.79ms. Allocated memory is still 375.4MB. Free memory was 325.2MB in the beginning and 339.0MB in the end (delta: -13.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. * TraceAbstraction took 7577.38ms. Allocated memory was 375.4MB in the beginning and 570.4MB in the end (delta: 195.0MB). Free memory was 338.5MB in the beginning and 383.5MB in the end (delta: -45.0MB). Peak memory consumption was 151.1MB. 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: 5.2s, 147 PlacesBefore, 65 PlacesAfterwards, 137 TransitionsBefore, 53 TransitionsAfterwards, 6512 CoEnabledTransitionPairs, 7 FixpointIterations, 23 TrivialSequentialCompositions, 93 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 2 ChoiceCompositions, 132 TotalNumberOfCompositions, 22732 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 11219, independent: 10878, independent conditional: 0, independent unconditional: 10878, dependent: 341, dependent conditional: 0, dependent unconditional: 341, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3570, independent: 3506, independent conditional: 0, independent unconditional: 3506, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 11219, independent: 7372, independent conditional: 0, independent unconditional: 7372, dependent: 277, dependent conditional: 0, dependent unconditional: 277, unknown: 3570, unknown conditional: 0, unknown unconditional: 3570] , Statistics on independence cache: Total cache size (in pairs): 439, Positive cache size: 418, Positive conditional cache size: 0, Positive unconditional cache size: 418, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 732]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 732]: 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: 740]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 740]: 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: 750]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 755]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 755]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 762]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 762]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 765]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 770]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 770]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 777]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 777]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 780]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 785]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 785]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 809]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 809]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 811]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 815]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 815]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 815]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 815]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 815]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 817]: 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 9 procedures, 191 locations, 54 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: 7.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 143 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 143 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 245 IncrementalHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 0 mSDtfsCounter, 245 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=118occurred in iteration=0, InterpolantAutomatonStates: 21, 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, 0.4s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 185 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 30 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 16:21:00,464 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...