/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/weaver/popl20-min-max-dec.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 20:22:18,715 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 20:22:18,753 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 20:22:18,756 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 20:22:18,756 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 20:22:18,769 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 20:22:18,770 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 20:22:18,770 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 20:22:18,770 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 20:22:18,771 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 20:22:18,771 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 20:22:18,771 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 20:22:18,771 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 20:22:18,772 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 20:22:18,772 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 20:22:18,772 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 20:22:18,772 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 20:22:18,773 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 20:22:18,773 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 20:22:18,773 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 20:22:18,773 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 20:22:18,774 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 20:22:18,774 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 20:22:18,774 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 20:22:18,774 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 20:22:18,775 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 20:22:18,775 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 20:22:18,775 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 20:22:18,775 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 20:22:18,776 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 20:22:18,776 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 20:22:18,776 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 20:22:18,776 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 20:22:18,777 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 20:22:18,777 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 20:22:18,777 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 20:22:18,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 20:22:19,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 20:22:19,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 20:22:19,012 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 20:22:19,012 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 20:22:19,013 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-min-max-dec.wvr.c [2023-08-25 20:22:19,931 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 20:22:20,117 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 20:22:20,117 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-dec.wvr.c [2023-08-25 20:22:20,124 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cc828545/c1e4827f4c374ca8a772710ef9f7b034/FLAGf29dcccdc [2023-08-25 20:22:20,139 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cc828545/c1e4827f4c374ca8a772710ef9f7b034 [2023-08-25 20:22:20,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 20:22:20,144 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 20:22:20,148 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 20:22:20,148 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 20:22:20,151 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 20:22:20,152 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 08:22:20" (1/1) ... [2023-08-25 20:22:20,152 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54874b22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:22:20, skipping insertion in model container [2023-08-25 20:22:20,156 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 08:22:20" (1/1) ... [2023-08-25 20:22:20,176 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 20:22:20,318 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 20:22:20,324 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 20:22:20,346 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 20:22:20,351 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 20:22:20,351 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 20:22:20,355 INFO L206 MainTranslator]: Completed translation [2023-08-25 20:22:20,355 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:22:20 WrapperNode [2023-08-25 20:22:20,355 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 20:22:20,356 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 20:22:20,356 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 20:22:20,356 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 20:22:20,360 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:22:20" (1/1) ... [2023-08-25 20:22:20,370 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:22:20" (1/1) ... [2023-08-25 20:22:20,393 INFO L138 Inliner]: procedures = 26, calls = 64, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 207 [2023-08-25 20:22:20,393 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 20:22:20,394 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 20:22:20,394 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 20:22:20,394 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 20:22:20,404 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:22:20" (1/1) ... [2023-08-25 20:22:20,404 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:22:20" (1/1) ... [2023-08-25 20:22:20,408 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:22:20" (1/1) ... [2023-08-25 20:22:20,408 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:22:20" (1/1) ... [2023-08-25 20:22:20,420 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:22:20" (1/1) ... [2023-08-25 20:22:20,423 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:22:20" (1/1) ... [2023-08-25 20:22:20,424 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:22:20" (1/1) ... [2023-08-25 20:22:20,426 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:22:20" (1/1) ... [2023-08-25 20:22:20,428 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 20:22:20,428 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 20:22:20,428 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 20:22:20,428 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 20:22:20,429 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:22:20" (1/1) ... [2023-08-25 20:22:20,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 20:22:20,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 20:22:20,461 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 20:22:20,466 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 20:22:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 20:22:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 20:22:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 20:22:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 20:22:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 20:22:20,482 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 20:22:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 20:22:20,482 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 20:22:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-25 20:22:20,482 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-25 20:22:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-08-25 20:22:20,483 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-08-25 20:22:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 20:22:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 20:22:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 20:22:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-25 20:22:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 20:22:20,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 20:22:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 20:22:20,484 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 20:22:20,559 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 20:22:20,560 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 20:22:21,041 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 20:22:21,261 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 20:22:21,261 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-25 20:22:21,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:22:21 BoogieIcfgContainer [2023-08-25 20:22:21,263 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 20:22:21,265 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 20:22:21,265 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 20:22:21,267 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 20:22:21,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 08:22:20" (1/3) ... [2023-08-25 20:22:21,267 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb71dc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 08:22:21, skipping insertion in model container [2023-08-25 20:22:21,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:22:20" (2/3) ... [2023-08-25 20:22:21,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb71dc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 08:22:21, skipping insertion in model container [2023-08-25 20:22:21,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:22:21" (3/3) ... [2023-08-25 20:22:21,269 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-min-max-dec.wvr.c [2023-08-25 20:22:21,280 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 20:22:21,281 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 47 error locations. [2023-08-25 20:22:21,282 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 20:22:21,352 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-08-25 20:22:21,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 261 places, 260 transitions, 552 flow [2023-08-25 20:22:21,495 INFO L124 PetriNetUnfolderBase]: 12/256 cut-off events. [2023-08-25 20:22:21,496 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-25 20:22:21,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 273 conditions, 256 events. 12/256 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 399 event pairs, 0 based on Foata normal form. 0/197 useless extension candidates. Maximal degree in co-relation 190. Up to 2 conditions per place. [2023-08-25 20:22:21,504 INFO L82 GeneralOperation]: Start removeDead. Operand has 261 places, 260 transitions, 552 flow [2023-08-25 20:22:21,510 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 244 places, 243 transitions, 510 flow [2023-08-25 20:22:21,513 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 20:22:21,522 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 244 places, 243 transitions, 510 flow [2023-08-25 20:22:21,524 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 244 places, 243 transitions, 510 flow [2023-08-25 20:22:21,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 244 places, 243 transitions, 510 flow [2023-08-25 20:22:21,567 INFO L124 PetriNetUnfolderBase]: 12/243 cut-off events. [2023-08-25 20:22:21,568 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-25 20:22:21,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 260 conditions, 243 events. 12/243 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 395 event pairs, 0 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 190. Up to 2 conditions per place. [2023-08-25 20:22:21,575 INFO L119 LiptonReduction]: Number of co-enabled transitions 9804 [2023-08-25 20:22:29,385 INFO L134 LiptonReduction]: Checked pairs total: 52018 [2023-08-25 20:22:29,385 INFO L136 LiptonReduction]: Total number of compositions: 194 [2023-08-25 20:22:29,394 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 20:22:29,398 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;@4f0a1c89, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 20:22:29,398 INFO L358 AbstractCegarLoop]: Starting to check reachability of 87 error locations. [2023-08-25 20:22:29,399 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 20:22:29,399 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 20:22:29,399 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 20:22:29,399 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:22:29,399 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 20:22:29,400 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2023-08-25 20:22:29,402 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:22:29,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1291, now seen corresponding path program 1 times [2023-08-25 20:22:29,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:22:29,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864966469] [2023-08-25 20:22:29,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:22:29,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:22:29,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:22:29,468 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 20:22:29,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:22:29,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864966469] [2023-08-25 20:22:29,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864966469] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:22:29,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:22:29,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 20:22:29,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868379026] [2023-08-25 20:22:29,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:22:29,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 20:22:29,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:22:29,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 20:22:29,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 20:22:29,494 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 454 [2023-08-25 20:22:29,495 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 101 transitions, 226 flow. Second operand has 2 states, 2 states have (on average 202.5) internal successors, (405), 2 states have internal predecessors, (405), 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 20:22:29,495 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:22:29,495 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 454 [2023-08-25 20:22:29,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:22:29,820 INFO L124 PetriNetUnfolderBase]: 1372/2904 cut-off events. [2023-08-25 20:22:29,820 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2023-08-25 20:22:29,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4945 conditions, 2904 events. 1372/2904 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 20440 event pairs, 926 based on Foata normal form. 425/2834 useless extension candidates. Maximal degree in co-relation 4264. Up to 1831 conditions per place. [2023-08-25 20:22:29,833 INFO L140 encePairwiseOnDemand]: 411/454 looper letters, 31 selfloop transitions, 0 changer transitions 0/58 dead transitions. [2023-08-25 20:22:29,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 58 transitions, 202 flow [2023-08-25 20:22:29,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 20:22:29,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 20:22:29,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 478 transitions. [2023-08-25 20:22:29,846 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.526431718061674 [2023-08-25 20:22:29,846 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 478 transitions. [2023-08-25 20:22:29,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 478 transitions. [2023-08-25 20:22:29,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:22:29,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 478 transitions. [2023-08-25 20:22:29,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 239.0) internal successors, (478), 2 states have internal predecessors, (478), 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 20:22:29,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 454.0) internal successors, (1362), 3 states have internal predecessors, (1362), 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 20:22:29,857 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 454.0) internal successors, (1362), 3 states have internal predecessors, (1362), 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 20:22:29,858 INFO L175 Difference]: Start difference. First operand has 107 places, 101 transitions, 226 flow. Second operand 2 states and 478 transitions. [2023-08-25 20:22:29,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 58 transitions, 202 flow [2023-08-25 20:22:29,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 58 transitions, 186 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-08-25 20:22:29,865 INFO L231 Difference]: Finished difference. Result has 60 places, 58 transitions, 124 flow [2023-08-25 20:22:29,866 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=124, PETRI_PLACES=60, PETRI_TRANSITIONS=58} [2023-08-25 20:22:29,869 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, -47 predicate places. [2023-08-25 20:22:29,869 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 58 transitions, 124 flow [2023-08-25 20:22:29,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 202.5) internal successors, (405), 2 states have internal predecessors, (405), 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 20:22:29,870 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:22:29,870 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:22:29,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 20:22:29,870 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2023-08-25 20:22:29,876 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:22:29,876 INFO L85 PathProgramCache]: Analyzing trace with hash 733416949, now seen corresponding path program 1 times [2023-08-25 20:22:29,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:22:29,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969072521] [2023-08-25 20:22:29,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:22:29,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:22:29,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:22:29,977 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 20:22:29,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:22:29,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969072521] [2023-08-25 20:22:29,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969072521] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:22:29,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:22:29,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 20:22:29,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537729639] [2023-08-25 20:22:29,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:22:29,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 20:22:29,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:22:29,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 20:22:29,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 20:22:29,979 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 454 [2023-08-25 20:22:29,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 58 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 186.33333333333334) internal successors, (559), 3 states have internal predecessors, (559), 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 20:22:29,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:22:29,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 454 [2023-08-25 20:22:29,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:22:30,381 INFO L124 PetriNetUnfolderBase]: 3676/6272 cut-off events. [2023-08-25 20:22:30,381 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-08-25 20:22:30,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11468 conditions, 6272 events. 3676/6272 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 273. Compared 37792 event pairs, 3028 based on Foata normal form. 0/5350 useless extension candidates. Maximal degree in co-relation 11465. Up to 4970 conditions per place. [2023-08-25 20:22:30,405 INFO L140 encePairwiseOnDemand]: 450/454 looper letters, 35 selfloop transitions, 1 changer transitions 0/55 dead transitions. [2023-08-25 20:22:30,406 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 55 transitions, 190 flow [2023-08-25 20:22:30,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 20:22:30,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 20:22:30,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 591 transitions. [2023-08-25 20:22:30,407 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43392070484581496 [2023-08-25 20:22:30,407 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 591 transitions. [2023-08-25 20:22:30,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 591 transitions. [2023-08-25 20:22:30,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:22:30,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 591 transitions. [2023-08-25 20:22:30,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 197.0) internal successors, (591), 3 states have internal predecessors, (591), 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 20:22:30,412 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 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 20:22:30,412 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 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 20:22:30,412 INFO L175 Difference]: Start difference. First operand has 60 places, 58 transitions, 124 flow. Second operand 3 states and 591 transitions. [2023-08-25 20:22:30,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 55 transitions, 190 flow [2023-08-25 20:22:30,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 55 transitions, 190 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 20:22:30,414 INFO L231 Difference]: Finished difference. Result has 59 places, 55 transitions, 120 flow [2023-08-25 20:22:30,414 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=120, PETRI_PLACES=59, PETRI_TRANSITIONS=55} [2023-08-25 20:22:30,414 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, -48 predicate places. [2023-08-25 20:22:30,414 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 55 transitions, 120 flow [2023-08-25 20:22:30,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 186.33333333333334) internal successors, (559), 3 states have internal predecessors, (559), 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 20:22:30,415 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:22:30,415 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:22:30,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 20:22:30,415 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2023-08-25 20:22:30,416 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:22:30,416 INFO L85 PathProgramCache]: Analyzing trace with hash -834465713, now seen corresponding path program 1 times [2023-08-25 20:22:30,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:22:30,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174242796] [2023-08-25 20:22:30,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:22:30,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:22:30,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:22:30,515 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 20:22:30,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:22:30,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174242796] [2023-08-25 20:22:30,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174242796] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:22:30,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:22:30,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 20:22:30,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967826489] [2023-08-25 20:22:30,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:22:30,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 20:22:30,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:22:30,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 20:22:30,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 20:22:30,518 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 454 [2023-08-25 20:22:30,519 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 55 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 187.33333333333334) internal successors, (562), 3 states have internal predecessors, (562), 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 20:22:30,519 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:22:30,519 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 454 [2023-08-25 20:22:30,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:22:30,780 INFO L124 PetriNetUnfolderBase]: 1372/2853 cut-off events. [2023-08-25 20:22:30,780 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2023-08-25 20:22:30,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4775 conditions, 2853 events. 1372/2853 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 19704 event pairs, 926 based on Foata normal form. 0/2408 useless extension candidates. Maximal degree in co-relation 4771. Up to 1831 conditions per place. [2023-08-25 20:22:30,791 INFO L140 encePairwiseOnDemand]: 451/454 looper letters, 30 selfloop transitions, 2 changer transitions 0/56 dead transitions. [2023-08-25 20:22:30,791 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 56 transitions, 186 flow [2023-08-25 20:22:30,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 20:22:30,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 20:22:30,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 585 transitions. [2023-08-25 20:22:30,793 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42951541850220265 [2023-08-25 20:22:30,793 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 585 transitions. [2023-08-25 20:22:30,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 585 transitions. [2023-08-25 20:22:30,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:22:30,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 585 transitions. [2023-08-25 20:22:30,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 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 20:22:30,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 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 20:22:30,797 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 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 20:22:30,797 INFO L175 Difference]: Start difference. First operand has 59 places, 55 transitions, 120 flow. Second operand 3 states and 585 transitions. [2023-08-25 20:22:30,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 56 transitions, 186 flow [2023-08-25 20:22:30,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 56 transitions, 185 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 20:22:30,799 INFO L231 Difference]: Finished difference. Result has 61 places, 56 transitions, 131 flow [2023-08-25 20:22:30,799 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=131, PETRI_PLACES=61, PETRI_TRANSITIONS=56} [2023-08-25 20:22:30,800 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, -46 predicate places. [2023-08-25 20:22:30,800 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 56 transitions, 131 flow [2023-08-25 20:22:30,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 187.33333333333334) internal successors, (562), 3 states have internal predecessors, (562), 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 20:22:30,801 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:22:30,801 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:22:30,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 20:22:30,804 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2023-08-25 20:22:30,805 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:22:30,805 INFO L85 PathProgramCache]: Analyzing trace with hash 783760249, now seen corresponding path program 1 times [2023-08-25 20:22:30,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:22:30,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426844517] [2023-08-25 20:22:30,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:22:30,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:22:30,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:22:31,168 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 20:22:31,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:22:31,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426844517] [2023-08-25 20:22:31,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426844517] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:22:31,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:22:31,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 20:22:31,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058255333] [2023-08-25 20:22:31,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:22:31,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 20:22:31,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:22:31,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 20:22:31,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 20:22:31,172 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 454 [2023-08-25 20:22:31,173 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 56 transitions, 131 flow. Second operand has 6 states, 6 states have (on average 168.66666666666666) internal successors, (1012), 6 states have internal predecessors, (1012), 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 20:22:31,173 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:22:31,173 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 454 [2023-08-25 20:22:31,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:22:32,088 INFO L124 PetriNetUnfolderBase]: 6116/8523 cut-off events. [2023-08-25 20:22:32,088 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2023-08-25 20:22:32,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16621 conditions, 8523 events. 6116/8523 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 364. Compared 43232 event pairs, 2100 based on Foata normal form. 0/7842 useless extension candidates. Maximal degree in co-relation 16616. Up to 4702 conditions per place. [2023-08-25 20:22:32,119 INFO L140 encePairwiseOnDemand]: 447/454 looper letters, 113 selfloop transitions, 9 changer transitions 0/128 dead transitions. [2023-08-25 20:22:32,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 128 transitions, 523 flow [2023-08-25 20:22:32,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 20:22:32,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 20:22:32,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1118 transitions. [2023-08-25 20:22:32,122 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4104258443465492 [2023-08-25 20:22:32,122 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1118 transitions. [2023-08-25 20:22:32,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1118 transitions. [2023-08-25 20:22:32,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:22:32,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1118 transitions. [2023-08-25 20:22:32,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 186.33333333333334) internal successors, (1118), 6 states have internal predecessors, (1118), 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 20:22:32,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 454.0) internal successors, (3178), 7 states have internal predecessors, (3178), 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 20:22:32,128 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 454.0) internal successors, (3178), 7 states have internal predecessors, (3178), 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 20:22:32,128 INFO L175 Difference]: Start difference. First operand has 61 places, 56 transitions, 131 flow. Second operand 6 states and 1118 transitions. [2023-08-25 20:22:32,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 128 transitions, 523 flow [2023-08-25 20:22:32,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 128 transitions, 519 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-25 20:22:32,130 INFO L231 Difference]: Finished difference. Result has 70 places, 64 transitions, 191 flow [2023-08-25 20:22:32,131 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=191, PETRI_PLACES=70, PETRI_TRANSITIONS=64} [2023-08-25 20:22:32,131 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, -37 predicate places. [2023-08-25 20:22:32,131 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 64 transitions, 191 flow [2023-08-25 20:22:32,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 168.66666666666666) internal successors, (1012), 6 states have internal predecessors, (1012), 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 20:22:32,132 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:22:32,132 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:22:32,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 20:22:32,132 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2023-08-25 20:22:32,132 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:22:32,132 INFO L85 PathProgramCache]: Analyzing trace with hash 862558712, now seen corresponding path program 1 times [2023-08-25 20:22:32,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:22:32,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273184558] [2023-08-25 20:22:32,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:22:32,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:22:32,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:22:32,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 20:22:32,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:22:32,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273184558] [2023-08-25 20:22:32,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273184558] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:22:32,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:22:32,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-25 20:22:32,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698495857] [2023-08-25 20:22:32,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:22:32,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 20:22:32,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:22:32,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 20:22:32,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-08-25 20:22:32,399 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 454 [2023-08-25 20:22:32,400 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 64 transitions, 191 flow. Second operand has 9 states, 9 states have (on average 161.88888888888889) internal successors, (1457), 9 states have internal predecessors, (1457), 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 20:22:32,400 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:22:32,400 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 454 [2023-08-25 20:22:32,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:22:33,237 INFO L124 PetriNetUnfolderBase]: 5836/7923 cut-off events. [2023-08-25 20:22:33,237 INFO L125 PetriNetUnfolderBase]: For 1556/1556 co-relation queries the response was YES. [2023-08-25 20:22:33,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18763 conditions, 7923 events. 5836/7923 cut-off events. For 1556/1556 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 38551 event pairs, 978 based on Foata normal form. 80/7450 useless extension candidates. Maximal degree in co-relation 18754. Up to 3296 conditions per place. [2023-08-25 20:22:33,268 INFO L140 encePairwiseOnDemand]: 448/454 looper letters, 97 selfloop transitions, 8 changer transitions 0/111 dead transitions. [2023-08-25 20:22:33,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 111 transitions, 501 flow [2023-08-25 20:22:33,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 20:22:33,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 20:22:33,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1217 transitions. [2023-08-25 20:22:33,271 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38294524858401513 [2023-08-25 20:22:33,271 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1217 transitions. [2023-08-25 20:22:33,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1217 transitions. [2023-08-25 20:22:33,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:22:33,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1217 transitions. [2023-08-25 20:22:33,273 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 173.85714285714286) internal successors, (1217), 7 states have internal predecessors, (1217), 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 20:22:33,277 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 454.0) internal successors, (3632), 8 states have internal predecessors, (3632), 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 20:22:33,277 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 454.0) internal successors, (3632), 8 states have internal predecessors, (3632), 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 20:22:33,278 INFO L175 Difference]: Start difference. First operand has 70 places, 64 transitions, 191 flow. Second operand 7 states and 1217 transitions. [2023-08-25 20:22:33,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 111 transitions, 501 flow [2023-08-25 20:22:33,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 111 transitions, 498 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 20:22:33,305 INFO L231 Difference]: Finished difference. Result has 74 places, 63 transitions, 200 flow [2023-08-25 20:22:33,305 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=200, PETRI_PLACES=74, PETRI_TRANSITIONS=63} [2023-08-25 20:22:33,306 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, -33 predicate places. [2023-08-25 20:22:33,306 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 63 transitions, 200 flow [2023-08-25 20:22:33,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 161.88888888888889) internal successors, (1457), 9 states have internal predecessors, (1457), 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 20:22:33,307 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:22:33,307 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:22:33,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 20:22:33,307 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2023-08-25 20:22:33,307 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:22:33,307 INFO L85 PathProgramCache]: Analyzing trace with hash 804610938, now seen corresponding path program 1 times [2023-08-25 20:22:33,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:22:33,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909984206] [2023-08-25 20:22:33,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:22:33,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:22:33,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:22:33,366 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 20:22:33,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:22:33,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909984206] [2023-08-25 20:22:33,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909984206] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:22:33,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:22:33,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 20:22:33,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925741067] [2023-08-25 20:22:33,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:22:33,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 20:22:33,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:22:33,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 20:22:33,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 20:22:33,371 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 454 [2023-08-25 20:22:33,372 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 63 transitions, 200 flow. Second operand has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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 20:22:33,372 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:22:33,372 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 454 [2023-08-25 20:22:33,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:22:33,953 INFO L124 PetriNetUnfolderBase]: 3922/6659 cut-off events. [2023-08-25 20:22:33,953 INFO L125 PetriNetUnfolderBase]: For 2766/2766 co-relation queries the response was YES. [2023-08-25 20:22:33,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15192 conditions, 6659 events. 3922/6659 cut-off events. For 2766/2766 co-relation queries the response was YES. Maximal size of possible extension queue 348. Compared 44010 event pairs, 1698 based on Foata normal form. 0/6145 useless extension candidates. Maximal degree in co-relation 15183. Up to 3579 conditions per place. [2023-08-25 20:22:33,988 INFO L140 encePairwiseOnDemand]: 450/454 looper letters, 53 selfloop transitions, 3 changer transitions 0/83 dead transitions. [2023-08-25 20:22:33,988 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 83 transitions, 372 flow [2023-08-25 20:22:33,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 20:22:33,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 20:22:33,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 800 transitions. [2023-08-25 20:22:33,990 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44052863436123346 [2023-08-25 20:22:33,990 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 800 transitions. [2023-08-25 20:22:33,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 800 transitions. [2023-08-25 20:22:33,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:22:33,991 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 800 transitions. [2023-08-25 20:22:33,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 200.0) internal successors, (800), 4 states have internal predecessors, (800), 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 20:22:33,993 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 454.0) internal successors, (2270), 5 states have internal predecessors, (2270), 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 20:22:33,994 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 454.0) internal successors, (2270), 5 states have internal predecessors, (2270), 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 20:22:33,994 INFO L175 Difference]: Start difference. First operand has 74 places, 63 transitions, 200 flow. Second operand 4 states and 800 transitions. [2023-08-25 20:22:33,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 83 transitions, 372 flow [2023-08-25 20:22:34,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 83 transitions, 358 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 20:22:34,007 INFO L231 Difference]: Finished difference. Result has 73 places, 64 transitions, 200 flow [2023-08-25 20:22:34,007 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=200, PETRI_PLACES=73, PETRI_TRANSITIONS=64} [2023-08-25 20:22:34,008 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, -34 predicate places. [2023-08-25 20:22:34,008 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 64 transitions, 200 flow [2023-08-25 20:22:34,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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 20:22:34,008 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:22:34,008 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:22:34,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 20:22:34,011 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2023-08-25 20:22:34,012 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:22:34,012 INFO L85 PathProgramCache]: Analyzing trace with hash -904693879, now seen corresponding path program 1 times [2023-08-25 20:22:34,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:22:34,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142105350] [2023-08-25 20:22:34,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:22:34,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:22:34,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:22:34,269 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 20:22:34,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:22:34,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142105350] [2023-08-25 20:22:34,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142105350] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:22:34,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:22:34,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 20:22:34,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668179403] [2023-08-25 20:22:34,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:22:34,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 20:22:34,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:22:34,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 20:22:34,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 20:22:34,271 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 454 [2023-08-25 20:22:34,272 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 64 transitions, 200 flow. Second operand has 6 states, 6 states have (on average 170.66666666666666) internal successors, (1024), 6 states have internal predecessors, (1024), 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 20:22:34,272 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:22:34,272 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 454 [2023-08-25 20:22:34,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:22:35,301 INFO L124 PetriNetUnfolderBase]: 7982/11085 cut-off events. [2023-08-25 20:22:35,301 INFO L125 PetriNetUnfolderBase]: For 3622/3622 co-relation queries the response was YES. [2023-08-25 20:22:35,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27195 conditions, 11085 events. 7982/11085 cut-off events. For 3622/3622 co-relation queries the response was YES. Maximal size of possible extension queue 459. Compared 58423 event pairs, 4809 based on Foata normal form. 0/10756 useless extension candidates. Maximal degree in co-relation 27185. Up to 9630 conditions per place. [2023-08-25 20:22:35,343 INFO L140 encePairwiseOnDemand]: 447/454 looper letters, 93 selfloop transitions, 13 changer transitions 0/112 dead transitions. [2023-08-25 20:22:35,343 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 112 transitions, 531 flow [2023-08-25 20:22:35,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 20:22:35,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 20:22:35,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1089 transitions. [2023-08-25 20:22:35,345 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3997797356828194 [2023-08-25 20:22:35,345 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1089 transitions. [2023-08-25 20:22:35,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1089 transitions. [2023-08-25 20:22:35,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:22:35,346 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1089 transitions. [2023-08-25 20:22:35,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 181.5) internal successors, (1089), 6 states have internal predecessors, (1089), 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 20:22:35,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 454.0) internal successors, (3178), 7 states have internal predecessors, (3178), 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 20:22:35,350 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 454.0) internal successors, (3178), 7 states have internal predecessors, (3178), 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 20:22:35,350 INFO L175 Difference]: Start difference. First operand has 73 places, 64 transitions, 200 flow. Second operand 6 states and 1089 transitions. [2023-08-25 20:22:35,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 112 transitions, 531 flow [2023-08-25 20:22:35,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 112 transitions, 527 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 20:22:35,365 INFO L231 Difference]: Finished difference. Result has 81 places, 76 transitions, 306 flow [2023-08-25 20:22:35,365 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=306, PETRI_PLACES=81, PETRI_TRANSITIONS=76} [2023-08-25 20:22:35,366 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, -26 predicate places. [2023-08-25 20:22:35,366 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 76 transitions, 306 flow [2023-08-25 20:22:35,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 170.66666666666666) internal successors, (1024), 6 states have internal predecessors, (1024), 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 20:22:35,366 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:22:35,366 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:22:35,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 20:22:35,367 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2023-08-25 20:22:35,367 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:22:35,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1072020806, now seen corresponding path program 1 times [2023-08-25 20:22:35,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:22:35,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715687447] [2023-08-25 20:22:35,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:22:35,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:22:35,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:22:35,644 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 20:22:35,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:22:35,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715687447] [2023-08-25 20:22:35,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715687447] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:22:35,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:22:35,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-25 20:22:35,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960715099] [2023-08-25 20:22:35,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:22:35,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 20:22:35,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:22:35,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 20:22:35,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-25 20:22:35,647 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 454 [2023-08-25 20:22:35,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 76 transitions, 306 flow. Second operand has 9 states, 9 states have (on average 163.22222222222223) internal successors, (1469), 9 states have internal predecessors, (1469), 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 20:22:35,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:22:35,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 454 [2023-08-25 20:22:35,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:22:36,794 INFO L124 PetriNetUnfolderBase]: 7942/11029 cut-off events. [2023-08-25 20:22:36,794 INFO L125 PetriNetUnfolderBase]: For 5587/5587 co-relation queries the response was YES. [2023-08-25 20:22:36,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28504 conditions, 11029 events. 7942/11029 cut-off events. For 5587/5587 co-relation queries the response was YES. Maximal size of possible extension queue 459. Compared 58176 event pairs, 4671 based on Foata normal form. 16/10738 useless extension candidates. Maximal degree in co-relation 28490. Up to 9069 conditions per place. [2023-08-25 20:22:36,843 INFO L140 encePairwiseOnDemand]: 448/454 looper letters, 89 selfloop transitions, 8 changer transitions 0/103 dead transitions. [2023-08-25 20:22:36,843 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 103 transitions, 568 flow [2023-08-25 20:22:36,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 20:22:36,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 20:22:36,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1196 transitions. [2023-08-25 20:22:36,846 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3763373190685966 [2023-08-25 20:22:36,846 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1196 transitions. [2023-08-25 20:22:36,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1196 transitions. [2023-08-25 20:22:36,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:22:36,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1196 transitions. [2023-08-25 20:22:36,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 170.85714285714286) internal successors, (1196), 7 states have internal predecessors, (1196), 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 20:22:36,851 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 454.0) internal successors, (3632), 8 states have internal predecessors, (3632), 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 20:22:36,851 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 454.0) internal successors, (3632), 8 states have internal predecessors, (3632), 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 20:22:36,851 INFO L175 Difference]: Start difference. First operand has 81 places, 76 transitions, 306 flow. Second operand 7 states and 1196 transitions. [2023-08-25 20:22:36,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 103 transitions, 568 flow [2023-08-25 20:22:36,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 103 transitions, 564 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 20:22:36,876 INFO L231 Difference]: Finished difference. Result has 85 places, 75 transitions, 314 flow [2023-08-25 20:22:36,876 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=314, PETRI_PLACES=85, PETRI_TRANSITIONS=75} [2023-08-25 20:22:36,876 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, -22 predicate places. [2023-08-25 20:22:36,877 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 75 transitions, 314 flow [2023-08-25 20:22:36,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 163.22222222222223) internal successors, (1469), 9 states have internal predecessors, (1469), 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 20:22:36,877 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:22:36,877 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:22:36,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 20:22:36,877 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2023-08-25 20:22:36,878 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:22:36,878 INFO L85 PathProgramCache]: Analyzing trace with hash 713966286, now seen corresponding path program 1 times [2023-08-25 20:22:36,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:22:36,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577062228] [2023-08-25 20:22:36,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:22:36,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:22:36,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:22:36,936 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 20:22:36,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:22:36,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577062228] [2023-08-25 20:22:36,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577062228] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:22:36,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:22:36,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 20:22:36,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770536386] [2023-08-25 20:22:36,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:22:36,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 20:22:36,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:22:36,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 20:22:36,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 20:22:36,938 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 454 [2023-08-25 20:22:36,938 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 75 transitions, 314 flow. Second operand has 4 states, 4 states have (on average 193.75) internal successors, (775), 4 states have internal predecessors, (775), 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 20:22:36,938 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:22:36,938 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 454 [2023-08-25 20:22:36,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:22:37,721 INFO L124 PetriNetUnfolderBase]: 5222/9253 cut-off events. [2023-08-25 20:22:37,721 INFO L125 PetriNetUnfolderBase]: For 7699/7699 co-relation queries the response was YES. [2023-08-25 20:22:37,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22839 conditions, 9253 events. 5222/9253 cut-off events. For 7699/7699 co-relation queries the response was YES. Maximal size of possible extension queue 417. Compared 67456 event pairs, 2453 based on Foata normal form. 320/9300 useless extension candidates. Maximal degree in co-relation 22825. Up to 5225 conditions per place. [2023-08-25 20:22:37,760 INFO L140 encePairwiseOnDemand]: 450/454 looper letters, 71 selfloop transitions, 3 changer transitions 0/104 dead transitions. [2023-08-25 20:22:37,760 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 104 transitions, 602 flow [2023-08-25 20:22:37,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 20:22:37,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 20:22:37,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 800 transitions. [2023-08-25 20:22:37,762 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44052863436123346 [2023-08-25 20:22:37,762 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 800 transitions. [2023-08-25 20:22:37,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 800 transitions. [2023-08-25 20:22:37,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:22:37,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 800 transitions. [2023-08-25 20:22:37,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 200.0) internal successors, (800), 4 states have internal predecessors, (800), 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 20:22:37,766 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 454.0) internal successors, (2270), 5 states have internal predecessors, (2270), 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 20:22:37,766 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 454.0) internal successors, (2270), 5 states have internal predecessors, (2270), 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 20:22:37,766 INFO L175 Difference]: Start difference. First operand has 85 places, 75 transitions, 314 flow. Second operand 4 states and 800 transitions. [2023-08-25 20:22:37,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 104 transitions, 602 flow [2023-08-25 20:22:37,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 104 transitions, 588 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 20:22:37,785 INFO L231 Difference]: Finished difference. Result has 84 places, 76 transitions, 314 flow [2023-08-25 20:22:37,785 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=314, PETRI_PLACES=84, PETRI_TRANSITIONS=76} [2023-08-25 20:22:37,785 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, -23 predicate places. [2023-08-25 20:22:37,785 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 76 transitions, 314 flow [2023-08-25 20:22:37,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 193.75) internal successors, (775), 4 states have internal predecessors, (775), 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 20:22:37,786 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:22:37,786 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:22:37,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 20:22:37,786 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2023-08-25 20:22:37,786 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:22:37,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1517770567, now seen corresponding path program 1 times [2023-08-25 20:22:37,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:22:37,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272854680] [2023-08-25 20:22:37,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:22:37,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:22:37,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:22:38,054 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-08-25 20:22:38,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:22:38,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272854680] [2023-08-25 20:22:38,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272854680] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:22:38,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:22:38,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 20:22:38,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306702621] [2023-08-25 20:22:38,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:22:38,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 20:22:38,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:22:38,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 20:22:38,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 20:22:38,056 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 454 [2023-08-25 20:22:38,057 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 76 transitions, 314 flow. Second operand has 6 states, 6 states have (on average 172.5) internal successors, (1035), 6 states have internal predecessors, (1035), 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 20:22:38,057 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:22:38,057 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 454 [2023-08-25 20:22:38,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:22:39,345 INFO L124 PetriNetUnfolderBase]: 9887/13756 cut-off events. [2023-08-25 20:22:39,345 INFO L125 PetriNetUnfolderBase]: For 10272/10272 co-relation queries the response was YES. [2023-08-25 20:22:39,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38338 conditions, 13756 events. 9887/13756 cut-off events. For 10272/10272 co-relation queries the response was YES. Maximal size of possible extension queue 549. Compared 75963 event pairs, 6533 based on Foata normal form. 0/13368 useless extension candidates. Maximal degree in co-relation 38323. Up to 12758 conditions per place. [2023-08-25 20:22:39,408 INFO L140 encePairwiseOnDemand]: 447/454 looper letters, 81 selfloop transitions, 17 changer transitions 0/104 dead transitions. [2023-08-25 20:22:39,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 104 transitions, 628 flow [2023-08-25 20:22:39,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 20:22:39,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 20:22:39,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1064 transitions. [2023-08-25 20:22:39,410 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39060205580029367 [2023-08-25 20:22:39,410 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1064 transitions. [2023-08-25 20:22:39,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1064 transitions. [2023-08-25 20:22:39,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:22:39,411 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1064 transitions. [2023-08-25 20:22:39,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 177.33333333333334) internal successors, (1064), 6 states have internal predecessors, (1064), 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 20:22:39,415 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 454.0) internal successors, (3178), 7 states have internal predecessors, (3178), 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 20:22:39,416 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 454.0) internal successors, (3178), 7 states have internal predecessors, (3178), 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 20:22:39,416 INFO L175 Difference]: Start difference. First operand has 84 places, 76 transitions, 314 flow. Second operand 6 states and 1064 transitions. [2023-08-25 20:22:39,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 104 transitions, 628 flow [2023-08-25 20:22:39,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 104 transitions, 624 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 20:22:39,445 INFO L231 Difference]: Finished difference. Result has 92 places, 92 transitions, 486 flow [2023-08-25 20:22:39,445 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=486, PETRI_PLACES=92, PETRI_TRANSITIONS=92} [2023-08-25 20:22:39,446 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, -15 predicate places. [2023-08-25 20:22:39,446 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 92 transitions, 486 flow [2023-08-25 20:22:39,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 172.5) internal successors, (1035), 6 states have internal predecessors, (1035), 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 20:22:39,446 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:22:39,446 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:22:39,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 20:22:39,447 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2023-08-25 20:22:39,447 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:22:39,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1761369500, now seen corresponding path program 1 times [2023-08-25 20:22:39,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:22:39,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753036487] [2023-08-25 20:22:39,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:22:39,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:22:39,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:22:39,824 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-08-25 20:22:39,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:22:39,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753036487] [2023-08-25 20:22:39,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753036487] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:22:39,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:22:39,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-25 20:22:39,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955527437] [2023-08-25 20:22:39,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:22:39,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 20:22:39,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:22:39,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 20:22:39,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-25 20:22:39,827 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 454 [2023-08-25 20:22:39,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 92 transitions, 486 flow. Second operand has 9 states, 9 states have (on average 164.44444444444446) internal successors, (1480), 9 states have internal predecessors, (1480), 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 20:22:39,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:22:39,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 454 [2023-08-25 20:22:39,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:22:41,141 INFO L124 PetriNetUnfolderBase]: 9881/13738 cut-off events. [2023-08-25 20:22:41,142 INFO L125 PetriNetUnfolderBase]: For 12054/12054 co-relation queries the response was YES. [2023-08-25 20:22:41,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38865 conditions, 13738 events. 9881/13738 cut-off events. For 12054/12054 co-relation queries the response was YES. Maximal size of possible extension queue 549. Compared 75822 event pairs, 6517 based on Foata normal form. 4/13360 useless extension candidates. Maximal degree in co-relation 38846. Up to 12657 conditions per place. [2023-08-25 20:22:41,197 INFO L140 encePairwiseOnDemand]: 448/454 looper letters, 89 selfloop transitions, 8 changer transitions 0/103 dead transitions. [2023-08-25 20:22:41,197 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 103 transitions, 724 flow [2023-08-25 20:22:41,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 20:22:41,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 20:22:41,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1179 transitions. [2023-08-25 20:22:41,199 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3709880427942102 [2023-08-25 20:22:41,200 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1179 transitions. [2023-08-25 20:22:41,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1179 transitions. [2023-08-25 20:22:41,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:22:41,200 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1179 transitions. [2023-08-25 20:22:41,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 168.42857142857142) internal successors, (1179), 7 states have internal predecessors, (1179), 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 20:22:41,204 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 454.0) internal successors, (3632), 8 states have internal predecessors, (3632), 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 20:22:41,205 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 454.0) internal successors, (3632), 8 states have internal predecessors, (3632), 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 20:22:41,205 INFO L175 Difference]: Start difference. First operand has 92 places, 92 transitions, 486 flow. Second operand 7 states and 1179 transitions. [2023-08-25 20:22:41,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 103 transitions, 724 flow [2023-08-25 20:22:41,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 103 transitions, 719 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 20:22:41,250 INFO L231 Difference]: Finished difference. Result has 96 places, 91 transitions, 493 flow [2023-08-25 20:22:41,251 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=477, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=493, PETRI_PLACES=96, PETRI_TRANSITIONS=91} [2023-08-25 20:22:41,251 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, -11 predicate places. [2023-08-25 20:22:41,251 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 91 transitions, 493 flow [2023-08-25 20:22:41,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 164.44444444444446) internal successors, (1480), 9 states have internal predecessors, (1480), 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 20:22:41,252 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:22:41,252 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:22:41,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 20:22:41,252 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2023-08-25 20:22:41,252 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:22:41,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1047914486, now seen corresponding path program 1 times [2023-08-25 20:22:41,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:22:41,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916101158] [2023-08-25 20:22:41,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:22:41,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:22:41,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:22:41,333 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 20:22:41,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:22:41,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916101158] [2023-08-25 20:22:41,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916101158] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:22:41,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:22:41,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 20:22:41,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188073610] [2023-08-25 20:22:41,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:22:41,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 20:22:41,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:22:41,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 20:22:41,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 20:22:41,335 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 454 [2023-08-25 20:22:41,340 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 91 transitions, 493 flow. Second operand has 4 states, 4 states have (on average 195.75) internal successors, (783), 4 states have internal predecessors, (783), 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 20:22:41,340 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:22:41,340 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 454 [2023-08-25 20:22:41,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:22:42,216 INFO L124 PetriNetUnfolderBase]: 5740/10334 cut-off events. [2023-08-25 20:22:42,216 INFO L125 PetriNetUnfolderBase]: For 12934/13144 co-relation queries the response was YES. [2023-08-25 20:22:42,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27872 conditions, 10334 events. 5740/10334 cut-off events. For 12934/13144 co-relation queries the response was YES. Maximal size of possible extension queue 428. Compared 76193 event pairs, 3135 based on Foata normal form. 444/10596 useless extension candidates. Maximal degree in co-relation 27853. Up to 6345 conditions per place. [2023-08-25 20:22:42,266 INFO L140 encePairwiseOnDemand]: 450/454 looper letters, 76 selfloop transitions, 15 changer transitions 0/123 dead transitions. [2023-08-25 20:22:42,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 123 transitions, 849 flow [2023-08-25 20:22:42,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 20:22:42,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 20:22:42,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 803 transitions. [2023-08-25 20:22:42,268 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44218061674008813 [2023-08-25 20:22:42,268 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 803 transitions. [2023-08-25 20:22:42,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 803 transitions. [2023-08-25 20:22:42,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:22:42,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 803 transitions. [2023-08-25 20:22:42,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 200.75) internal successors, (803), 4 states have internal predecessors, (803), 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 20:22:42,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 454.0) internal successors, (2270), 5 states have internal predecessors, (2270), 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 20:22:42,272 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 454.0) internal successors, (2270), 5 states have internal predecessors, (2270), 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 20:22:42,272 INFO L175 Difference]: Start difference. First operand has 96 places, 91 transitions, 493 flow. Second operand 4 states and 803 transitions. [2023-08-25 20:22:42,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 123 transitions, 849 flow [2023-08-25 20:22:42,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 123 transitions, 835 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 20:22:42,331 INFO L231 Difference]: Finished difference. Result has 95 places, 104 transitions, 668 flow [2023-08-25 20:22:42,331 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=479, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=668, PETRI_PLACES=95, PETRI_TRANSITIONS=104} [2023-08-25 20:22:42,331 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, -12 predicate places. [2023-08-25 20:22:42,331 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 104 transitions, 668 flow [2023-08-25 20:22:42,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 195.75) internal successors, (783), 4 states have internal predecessors, (783), 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 20:22:42,332 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:22:42,332 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:22:42,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 20:22:42,332 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2023-08-25 20:22:42,332 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:22:42,332 INFO L85 PathProgramCache]: Analyzing trace with hash -540294471, now seen corresponding path program 1 times [2023-08-25 20:22:42,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:22:42,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009164395] [2023-08-25 20:22:42,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:22:42,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:22:42,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:22:42,921 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 20:22:42,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:22:42,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009164395] [2023-08-25 20:22:42,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009164395] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 20:22:42,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717389318] [2023-08-25 20:22:42,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:22:42,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 20:22:42,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 20:22:42,924 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 20:22:42,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-25 20:22:43,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:22:43,157 INFO L262 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 36 conjunts are in the unsatisfiable core [2023-08-25 20:22:43,164 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 20:22:43,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 20:22:43,288 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 20:22:43,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 20:22:43,375 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2023-08-25 20:22:43,449 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-08-25 20:22:43,481 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-08-25 20:22:43,577 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 20:22:43,577 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 20:22:43,674 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 5 [2023-08-25 20:22:43,779 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 20:22:43,779 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 79 [2023-08-25 20:22:43,818 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 20:22:43,818 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2023-08-25 20:22:44,167 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_int| c_~A~0.base) c_~A~0.offset))) (let ((.cse3 (+ .cse0 1)) (.cse2 (+ c_~A~0.offset (* c_thread1Thread1of1ForFork1_~i~0 4)))) (and (or (forall ((v_ArrVal_1005 (Array Int Int))) (let ((.cse1 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1005) c_~A~0.base))) (or (<= .cse0 (select .cse1 c_~A~0.offset)) (<= (select .cse1 .cse2) c_~min~0)))) (<= c_~min~0 .cse3)) (forall ((v_ArrVal_1005 (Array Int Int))) (let ((.cse6 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1005) c_~A~0.base))) (let ((.cse5 (select .cse6 .cse2)) (.cse4 (select .cse6 c_~A~0.offset))) (or (< .cse4 .cse0) (< c_~min~0 .cse5) (<= .cse5 (+ .cse4 1)))))) (forall ((v_ArrVal_1005 (Array Int Int))) (let ((.cse8 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1005) c_~A~0.base))) (let ((.cse7 (select .cse8 c_~A~0.offset))) (or (<= c_~min~0 (+ .cse7 1)) (<= (select .cse8 .cse2) c_~min~0) (< .cse7 .cse0))))) (forall ((v_ArrVal_1005 (Array Int Int))) (let ((.cse9 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1005) c_~A~0.base))) (let ((.cse10 (select .cse9 .cse2))) (or (<= .cse0 (select .cse9 c_~A~0.offset)) (<= .cse10 .cse3) (< c_~min~0 .cse10)))))))) is different from false [2023-08-25 20:22:44,272 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 2 not checked. [2023-08-25 20:22:44,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [717389318] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 20:22:44,273 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 20:22:44,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 11, 8] total 25 [2023-08-25 20:22:44,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338749537] [2023-08-25 20:22:44,273 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 20:22:44,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-08-25 20:22:44,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:22:44,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-08-25 20:22:44,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=475, Unknown=2, NotChecked=46, Total=650 [2023-08-25 20:22:44,277 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 454 [2023-08-25 20:22:44,279 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 104 transitions, 668 flow. Second operand has 26 states, 26 states have (on average 149.73076923076923) internal successors, (3893), 26 states have internal predecessors, (3893), 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 20:22:44,279 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:22:44,279 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 454 [2023-08-25 20:22:44,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:22:57,199 INFO L124 PetriNetUnfolderBase]: 53149/83637 cut-off events. [2023-08-25 20:22:57,199 INFO L125 PetriNetUnfolderBase]: For 235000/249312 co-relation queries the response was YES. [2023-08-25 20:22:57,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269969 conditions, 83637 events. 53149/83637 cut-off events. For 235000/249312 co-relation queries the response was YES. Maximal size of possible extension queue 3622. Compared 727212 event pairs, 3946 based on Foata normal form. 7580/89431 useless extension candidates. Maximal degree in co-relation 269949. Up to 24901 conditions per place. [2023-08-25 20:22:57,798 INFO L140 encePairwiseOnDemand]: 438/454 looper letters, 754 selfloop transitions, 555 changer transitions 732/2056 dead transitions. [2023-08-25 20:22:57,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 2056 transitions, 18749 flow [2023-08-25 20:22:57,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-08-25 20:22:57,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2023-08-25 20:22:57,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 7598 transitions. [2023-08-25 20:22:57,811 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.363819191725723 [2023-08-25 20:22:57,811 INFO L72 ComplementDD]: Start complementDD. Operand 46 states and 7598 transitions. [2023-08-25 20:22:57,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 7598 transitions. [2023-08-25 20:22:57,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:22:57,813 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 46 states and 7598 transitions. [2023-08-25 20:22:57,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 47 states, 46 states have (on average 165.17391304347825) internal successors, (7598), 46 states have internal predecessors, (7598), 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 20:22:57,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 47 states, 47 states have (on average 454.0) internal successors, (21338), 47 states have internal predecessors, (21338), 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 20:22:57,989 INFO L81 ComplementDD]: Finished complementDD. Result has 47 states, 47 states have (on average 454.0) internal successors, (21338), 47 states have internal predecessors, (21338), 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 20:22:57,989 INFO L175 Difference]: Start difference. First operand has 95 places, 104 transitions, 668 flow. Second operand 46 states and 7598 transitions. [2023-08-25 20:22:57,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 2056 transitions, 18749 flow [2023-08-25 20:22:58,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 2056 transitions, 18371 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 20:22:58,640 INFO L231 Difference]: Finished difference. Result has 166 places, 860 transitions, 9236 flow [2023-08-25 20:22:58,640 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=652, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=9236, PETRI_PLACES=166, PETRI_TRANSITIONS=860} [2023-08-25 20:22:58,640 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, 59 predicate places. [2023-08-25 20:22:58,640 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 860 transitions, 9236 flow [2023-08-25 20:22:58,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 149.73076923076923) internal successors, (3893), 26 states have internal predecessors, (3893), 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 20:22:58,641 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:22:58,641 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:22:58,649 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-25 20:22:58,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-08-25 20:22:58,846 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2023-08-25 20:22:58,847 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:22:58,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1817918097, now seen corresponding path program 2 times [2023-08-25 20:22:58,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:22:58,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136583404] [2023-08-25 20:22:58,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:22:58,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:22:58,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:22:59,292 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-08-25 20:22:59,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:22:59,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136583404] [2023-08-25 20:22:59,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136583404] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:22:59,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:22:59,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 20:22:59,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405489808] [2023-08-25 20:22:59,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:22:59,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 20:22:59,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:22:59,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 20:22:59,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 20:22:59,293 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 454 [2023-08-25 20:22:59,294 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 860 transitions, 9236 flow. Second operand has 4 states, 4 states have (on average 206.75) internal successors, (827), 4 states have internal predecessors, (827), 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 20:22:59,294 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:22:59,294 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 454 [2023-08-25 20:22:59,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:23:14,699 INFO L124 PetriNetUnfolderBase]: 51476/88729 cut-off events. [2023-08-25 20:23:14,699 INFO L125 PetriNetUnfolderBase]: For 1103655/1144949 co-relation queries the response was YES. [2023-08-25 20:23:15,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 468052 conditions, 88729 events. 51476/88729 cut-off events. For 1103655/1144949 co-relation queries the response was YES. Maximal size of possible extension queue 4353. Compared 876415 event pairs, 5998 based on Foata normal form. 9027/95639 useless extension candidates. Maximal degree in co-relation 468004. Up to 34325 conditions per place. [2023-08-25 20:23:16,125 INFO L140 encePairwiseOnDemand]: 450/454 looper letters, 1283 selfloop transitions, 38 changer transitions 671/2025 dead transitions. [2023-08-25 20:23:16,126 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 2025 transitions, 26382 flow [2023-08-25 20:23:16,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 20:23:16,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 20:23:16,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1071 transitions. [2023-08-25 20:23:16,127 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47180616740088105 [2023-08-25 20:23:16,127 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1071 transitions. [2023-08-25 20:23:16,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1071 transitions. [2023-08-25 20:23:16,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:23:16,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1071 transitions. [2023-08-25 20:23:16,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 214.2) internal successors, (1071), 5 states have internal predecessors, (1071), 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 20:23:16,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 454.0) internal successors, (2724), 6 states have internal predecessors, (2724), 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 20:23:16,130 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 454.0) internal successors, (2724), 6 states have internal predecessors, (2724), 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 20:23:16,130 INFO L175 Difference]: Start difference. First operand has 166 places, 860 transitions, 9236 flow. Second operand 5 states and 1071 transitions. [2023-08-25 20:23:16,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 2025 transitions, 26382 flow [2023-08-25 20:23:25,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 2025 transitions, 25819 flow, removed 281 selfloop flow, removed 3 redundant places. [2023-08-25 20:23:25,471 INFO L231 Difference]: Finished difference. Result has 167 places, 704 transitions, 7196 flow [2023-08-25 20:23:25,472 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=9007, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=860, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=831, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=7196, PETRI_PLACES=167, PETRI_TRANSITIONS=704} [2023-08-25 20:23:25,472 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, 60 predicate places. [2023-08-25 20:23:25,472 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 704 transitions, 7196 flow [2023-08-25 20:23:25,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 206.75) internal successors, (827), 4 states have internal predecessors, (827), 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 20:23:25,472 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:23:25,473 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:23:25,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-25 20:23:25,473 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2023-08-25 20:23:25,473 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:23:25,473 INFO L85 PathProgramCache]: Analyzing trace with hash 441085369, now seen corresponding path program 3 times [2023-08-25 20:23:25,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:23:25,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658826176] [2023-08-25 20:23:25,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:23:25,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:23:25,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:23:25,997 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 20:23:25,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:23:25,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658826176] [2023-08-25 20:23:25,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658826176] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 20:23:25,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155257264] [2023-08-25 20:23:25,998 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 20:23:25,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 20:23:25,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 20:23:25,999 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 20:23:26,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-25 20:23:26,656 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-08-25 20:23:26,657 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 20:23:26,659 INFO L262 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 29 conjunts are in the unsatisfiable core [2023-08-25 20:23:26,662 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 20:23:26,757 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2023-08-25 20:23:26,836 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-08-25 20:23:26,871 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 20:23:26,872 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 20:23:26,929 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 20:23:26,929 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 79 [2023-08-25 20:23:26,947 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 20:23:26,948 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2023-08-25 20:23:27,069 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 20:23:27,069 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 79 treesize of output 95 [2023-08-25 20:23:27,087 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 20:23:27,088 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2023-08-25 20:23:27,120 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 20:23:27,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155257264] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 20:23:27,120 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 20:23:27,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 9] total 21 [2023-08-25 20:23:27,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555092759] [2023-08-25 20:23:27,120 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 20:23:27,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-08-25 20:23:27,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:23:27,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-08-25 20:23:27,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2023-08-25 20:23:27,123 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 454 [2023-08-25 20:23:27,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 704 transitions, 7196 flow. Second operand has 22 states, 22 states have (on average 161.6818181818182) internal successors, (3557), 22 states have internal predecessors, (3557), 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 20:23:27,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:23:27,125 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 454 [2023-08-25 20:23:27,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:24:36,489 INFO L124 PetriNetUnfolderBase]: 220371/380891 cut-off events. [2023-08-25 20:24:36,489 INFO L125 PetriNetUnfolderBase]: For 3726424/3872234 co-relation queries the response was YES. [2023-08-25 20:24:40,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1892823 conditions, 380891 events. 220371/380891 cut-off events. For 3726424/3872234 co-relation queries the response was YES. Maximal size of possible extension queue 17093. Compared 4381038 event pairs, 13115 based on Foata normal form. 15407/388174 useless extension candidates. Maximal degree in co-relation 1892775. Up to 106773 conditions per place. [2023-08-25 20:24:42,176 INFO L140 encePairwiseOnDemand]: 439/454 looper letters, 1552 selfloop transitions, 3133 changer transitions 1464/6181 dead transitions. [2023-08-25 20:24:42,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 6181 transitions, 73559 flow [2023-08-25 20:24:42,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2023-08-25 20:24:42,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2023-08-25 20:24:42,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 18783 transitions. [2023-08-25 20:24:42,189 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3761113336003204 [2023-08-25 20:24:42,189 INFO L72 ComplementDD]: Start complementDD. Operand 110 states and 18783 transitions. [2023-08-25 20:24:42,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 110 states and 18783 transitions. [2023-08-25 20:24:42,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:24:42,192 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 110 states and 18783 transitions. [2023-08-25 20:24:42,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 111 states, 110 states have (on average 170.75454545454545) internal successors, (18783), 110 states have internal predecessors, (18783), 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 20:24:42,238 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 111 states, 111 states have (on average 454.0) internal successors, (50394), 111 states have internal predecessors, (50394), 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 20:24:42,245 INFO L81 ComplementDD]: Finished complementDD. Result has 111 states, 111 states have (on average 454.0) internal successors, (50394), 111 states have internal predecessors, (50394), 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 20:24:42,245 INFO L175 Difference]: Start difference. First operand has 167 places, 704 transitions, 7196 flow. Second operand 110 states and 18783 transitions. [2023-08-25 20:24:42,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 6181 transitions, 73559 flow [2023-08-25 20:27:17,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 6181 transitions, 72251 flow, removed 616 selfloop flow, removed 3 redundant places. [2023-08-25 20:27:17,995 INFO L231 Difference]: Finished difference. Result has 338 places, 3683 transitions, 50095 flow [2023-08-25 20:27:17,996 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=7170, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=704, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=565, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=110, PETRI_FLOW=50095, PETRI_PLACES=338, PETRI_TRANSITIONS=3683} [2023-08-25 20:27:17,996 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, 231 predicate places. [2023-08-25 20:27:17,996 INFO L495 AbstractCegarLoop]: Abstraction has has 338 places, 3683 transitions, 50095 flow [2023-08-25 20:27:17,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 161.6818181818182) internal successors, (3557), 22 states have internal predecessors, (3557), 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 20:27:17,997 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:27:17,997 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:27:18,005 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-25 20:27:18,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-08-25 20:27:18,203 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2023-08-25 20:27:18,203 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:27:18,203 INFO L85 PathProgramCache]: Analyzing trace with hash 638338051, now seen corresponding path program 4 times [2023-08-25 20:27:18,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:27:18,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996968091] [2023-08-25 20:27:18,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:27:18,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:27:18,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:27:18,751 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 20:27:18,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:27:18,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996968091] [2023-08-25 20:27:18,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996968091] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 20:27:18,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893899665] [2023-08-25 20:27:18,752 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-25 20:27:18,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 20:27:18,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 20:27:18,753 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 20:27:18,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-25 20:27:19,327 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-25 20:27:19,327 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 20:27:19,331 INFO L262 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 29 conjunts are in the unsatisfiable core [2023-08-25 20:27:19,334 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 20:27:19,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 20:27:19,459 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 20:27:19,521 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-08-25 20:27:19,579 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 20:27:19,579 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 20:27:19,658 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 20:27:19,659 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 79 [2023-08-25 20:27:19,684 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 20:27:19,685 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2023-08-25 20:27:19,750 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1603 (Array Int Int))) (<= c_~min~0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_1603) c_~A~0.base) c_~A~0.offset) 1))) is different from false [2023-08-25 20:27:19,769 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 20:27:19,770 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 79 treesize of output 95 [2023-08-25 20:27:19,781 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 20:27:19,781 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2023-08-25 20:27:23,910 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2023-08-25 20:27:23,934 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2023-08-25 20:27:23,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [893899665] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 20:27:23,934 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 20:27:23,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 27 [2023-08-25 20:27:23,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818358888] [2023-08-25 20:27:23,935 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 20:27:23,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-08-25 20:27:23,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:27:23,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-08-25 20:27:23,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=625, Unknown=6, NotChecked=52, Total=812 [2023-08-25 20:27:23,938 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 454 [2023-08-25 20:27:23,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 3683 transitions, 50095 flow. Second operand has 29 states, 29 states have (on average 157.0344827586207) internal successors, (4554), 29 states have internal predecessors, (4554), 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 20:27:23,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:27:23,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 454 [2023-08-25 20:27:23,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand