/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../benchexec/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.automaton.type.used.in.concurrency.analysis FINITE_AUTOMATA -i ../../../trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-94356ea-m [2025-04-13 18:07:14,004 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-13 18:07:14,040 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../benchexec/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2025-04-13 18:07:14,043 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-13 18:07:14,043 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-13 18:07:14,064 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-13 18:07:14,064 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-13 18:07:14,064 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-13 18:07:14,065 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-13 18:07:14,065 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-13 18:07:14,065 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-13 18:07:14,065 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-13 18:07:14,065 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-13 18:07:14,065 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-13 18:07:14,065 INFO L153 SettingsManager]: * Use SBE=true [2025-04-13 18:07:14,065 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-13 18:07:14,065 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-13 18:07:14,065 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-13 18:07:14,065 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-13 18:07:14,066 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-13 18:07:14,066 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-13 18:07:14,066 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-13 18:07:14,066 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-13 18:07:14,066 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-13 18:07:14,066 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-13 18:07:14,066 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-13 18:07:14,066 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-13 18:07:14,066 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-13 18:07:14,066 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-13 18:07:14,066 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 18:07:14,066 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 18:07:14,066 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 18:07:14,066 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 18:07:14,066 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-13 18:07:14,066 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 18:07:14,067 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 18:07:14,067 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 18:07:14,067 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 18:07:14,067 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-13 18:07:14,067 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-13 18:07:14,067 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-13 18:07:14,067 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-13 18:07:14,067 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-13 18:07:14,067 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-13 18:07:14,067 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-13 18:07:14,067 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-13 18:07:14,067 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-13 18:07:14,067 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Automaton type used in concurrency analysis -> FINITE_AUTOMATA [2025-04-13 18:07:14,256 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-13 18:07:14,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-13 18:07:14,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-13 18:07:14,266 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-13 18:07:14,266 INFO L274 PluginConnector]: CDTParser initialized [2025-04-13 18:07:14,267 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2025-04-13 18:07:15,567 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/491a0625b/2a26fcf3972245cda29c9bda9f598be9/FLAG81c5a56a6 [2025-04-13 18:07:15,781 INFO L389 CDTParser]: Found 1 translation units. [2025-04-13 18:07:15,781 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2025-04-13 18:07:15,788 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/491a0625b/2a26fcf3972245cda29c9bda9f598be9/FLAG81c5a56a6 [2025-04-13 18:07:16,618 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/491a0625b/2a26fcf3972245cda29c9bda9f598be9 [2025-04-13 18:07:16,620 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-13 18:07:16,621 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-13 18:07:16,622 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-13 18:07:16,622 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-13 18:07:16,625 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-13 18:07:16,626 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 06:07:16" (1/1) ... [2025-04-13 18:07:16,626 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14827986 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:07:16, skipping insertion in model container [2025-04-13 18:07:16,626 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 06:07:16" (1/1) ... [2025-04-13 18:07:16,639 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-13 18:07:16,792 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c[2777,2790] [2025-04-13 18:07:16,797 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 18:07:16,804 INFO L200 MainTranslator]: Completed pre-run [2025-04-13 18:07:16,825 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c[2777,2790] [2025-04-13 18:07:16,826 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 18:07:16,835 INFO L204 MainTranslator]: Completed translation [2025-04-13 18:07:16,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:07:16 WrapperNode [2025-04-13 18:07:16,837 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-13 18:07:16,838 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-13 18:07:16,838 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-13 18:07:16,838 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-13 18:07:16,842 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:07:16" (1/1) ... [2025-04-13 18:07:16,851 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:07:16" (1/1) ... [2025-04-13 18:07:16,872 INFO L138 Inliner]: procedures = 21, calls = 18, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 204 [2025-04-13 18:07:16,873 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-13 18:07:16,873 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-13 18:07:16,873 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-13 18:07:16,874 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-13 18:07:16,883 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:07:16" (1/1) ... [2025-04-13 18:07:16,888 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:07:16" (1/1) ... [2025-04-13 18:07:16,890 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:07:16" (1/1) ... [2025-04-13 18:07:16,905 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-04-13 18:07:16,906 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:07:16" (1/1) ... [2025-04-13 18:07:16,906 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:07:16" (1/1) ... [2025-04-13 18:07:16,912 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:07:16" (1/1) ... [2025-04-13 18:07:16,913 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:07:16" (1/1) ... [2025-04-13 18:07:16,914 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:07:16" (1/1) ... [2025-04-13 18:07:16,916 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:07:16" (1/1) ... [2025-04-13 18:07:16,916 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:07:16" (1/1) ... [2025-04-13 18:07:16,923 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-13 18:07:16,924 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-13 18:07:16,924 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-13 18:07:16,924 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-13 18:07:16,925 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:07:16" (1/1) ... [2025-04-13 18:07:16,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 18:07:16,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 18:07:16,956 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-13 18:07:16,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-13 18:07:16,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-13 18:07:16,977 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-13 18:07:16,977 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-13 18:07:16,977 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-13 18:07:16,977 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-13 18:07:16,977 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-13 18:07:16,978 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-13 18:07:16,978 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-04-13 18:07:16,978 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-04-13 18:07:16,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-13 18:07:16,978 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-04-13 18:07:16,978 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-04-13 18:07:16,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-13 18:07:16,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-13 18:07:16,979 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-13 18:07:17,060 INFO L234 CfgBuilder]: Building ICFG [2025-04-13 18:07:17,062 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-13 18:07:17,313 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-13 18:07:17,314 INFO L289 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-13 18:07:17,314 INFO L294 CfgBuilder]: Performing block encoding [2025-04-13 18:07:17,505 INFO L313 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-13 18:07:17,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 06:07:17 BoogieIcfgContainer [2025-04-13 18:07:17,507 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-13 18:07:17,508 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-13 18:07:17,508 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-13 18:07:17,512 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-13 18:07:17,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.04 06:07:16" (1/3) ... [2025-04-13 18:07:17,513 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b5069e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 06:07:17, skipping insertion in model container [2025-04-13 18:07:17,514 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:07:16" (2/3) ... [2025-04-13 18:07:17,514 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b5069e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 06:07:17, skipping insertion in model container [2025-04-13 18:07:17,514 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 06:07:17" (3/3) ... [2025-04-13 18:07:17,514 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-ticket-5.wvr.c [2025-04-13 18:07:17,525 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-13 18:07:17,526 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-ticket-5.wvr.c that has 6 procedures, 63 locations, 61 edges, 1 initial locations, 0 loop locations, and 1 error locations. [2025-04-13 18:07:17,526 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-13 18:07:17,577 INFO L143 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2025-04-13 18:07:17,600 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 78 places, 66 transitions, 167 flow [2025-04-13 18:07:19,164 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 47628 states, 47627 states have (on average 5.252902765238205) internal successors, (250180), 47627 states have internal predecessors, (250180), 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) [2025-04-13 18:07:19,183 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-13 18:07:19,190 INFO L340 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@513f592f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-13 18:07:19,190 INFO L341 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2025-04-13 18:07:19,299 INFO L278 IsEmpty]: Start isEmpty. Operand has 47628 states, 47627 states have (on average 5.252902765238205) internal successors, (250180), 47627 states have internal predecessors, (250180), 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) [2025-04-13 18:07:19,890 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2025-04-13 18:07:19,891 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:07:19,892 INFO L218 NwaCegarLoop]: 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, 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] [2025-04-13 18:07:19,892 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-04-13 18:07:19,896 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:07:19,897 INFO L85 PathProgramCache]: Analyzing trace with hash 36302670, now seen corresponding path program 1 times [2025-04-13 18:07:19,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:07:19,903 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860372668] [2025-04-13 18:07:19,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 18:07:19,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:07:20,014 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-04-13 18:07:20,058 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-04-13 18:07:20,059 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 18:07:20,059 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:07:20,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 18:07:20,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:07:20,324 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860372668] [2025-04-13 18:07:20,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860372668] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:07:20,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:07:20,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-13 18:07:20,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056007921] [2025-04-13 18:07:20,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:07:20,331 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-13 18:07:20,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:07:20,343 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-13 18:07:20,344 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-13 18:07:20,445 INFO L87 Difference]: Start difference. First operand has 47628 states, 47627 states have (on average 5.252902765238205) internal successors, (250180), 47627 states have internal predecessors, (250180), 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) Second operand has 3 states, 2 states have (on average 26.0) internal successors, (52), 3 states have internal predecessors, (52), 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) [2025-04-13 18:07:21,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:07:21,550 INFO L93 Difference]: Finished difference Result 89534 states and 465592 transitions. [2025-04-13 18:07:21,551 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-13 18:07:21,552 INFO L79 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 26.0) internal successors, (52), 3 states have internal predecessors, (52), 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) Word has length 52 [2025-04-13 18:07:21,552 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:07:22,664 INFO L225 Difference]: With dead ends: 89534 [2025-04-13 18:07:22,664 INFO L226 Difference]: Without dead ends: 88116 [2025-04-13 18:07:22,705 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-13 18:07:22,707 INFO L437 NwaCegarLoop]: 15 mSDtfsCounter, 10 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-04-13 18:07:22,707 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 22 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-04-13 18:07:22,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88116 states. [2025-04-13 18:07:25,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88116 to 70629. [2025-04-13 18:07:25,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70629 states, 70628 states have (on average 5.215934190406071) internal successors, (368391), 70628 states have internal predecessors, (368391), 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) [2025-04-13 18:07:26,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70629 states to 70629 states and 368391 transitions. [2025-04-13 18:07:26,835 INFO L79 Accepts]: Start accepts. Automaton has 70629 states and 368391 transitions. Word has length 52 [2025-04-13 18:07:26,837 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:07:26,837 INFO L485 AbstractCegarLoop]: Abstraction has 70629 states and 368391 transitions. [2025-04-13 18:07:26,837 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 26.0) internal successors, (52), 3 states have internal predecessors, (52), 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) [2025-04-13 18:07:26,838 INFO L278 IsEmpty]: Start isEmpty. Operand 70629 states and 368391 transitions. [2025-04-13 18:07:27,362 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-04-13 18:07:27,363 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:07:27,363 INFO L218 NwaCegarLoop]: 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, 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] [2025-04-13 18:07:27,364 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-13 18:07:27,364 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-04-13 18:07:27,365 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:07:27,365 INFO L85 PathProgramCache]: Analyzing trace with hash -104738841, now seen corresponding path program 1 times [2025-04-13 18:07:27,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:07:27,365 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255607226] [2025-04-13 18:07:27,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 18:07:27,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:07:27,393 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-04-13 18:07:27,413 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-04-13 18:07:27,413 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 18:07:27,414 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:07:27,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 18:07:27,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:07:27,510 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255607226] [2025-04-13 18:07:27,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255607226] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:07:27,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:07:27,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-13 18:07:27,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461400626] [2025-04-13 18:07:27,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:07:27,511 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-13 18:07:27,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:07:27,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-13 18:07:27,512 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-13 18:07:27,512 INFO L87 Difference]: Start difference. First operand 70629 states and 368391 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2025-04-13 18:07:29,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:07:29,545 INFO L93 Difference]: Finished difference Result 136346 states and 697366 transitions. [2025-04-13 18:07:29,545 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-13 18:07:29,546 INFO L79 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) Word has length 53 [2025-04-13 18:07:29,546 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:07:30,344 INFO L225 Difference]: With dead ends: 136346 [2025-04-13 18:07:30,345 INFO L226 Difference]: Without dead ends: 89430 [2025-04-13 18:07:30,433 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-13 18:07:30,434 INFO L437 NwaCegarLoop]: 21 mSDtfsCounter, 28 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-04-13 18:07:30,434 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 33 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-04-13 18:07:30,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89430 states. [2025-04-13 18:07:33,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89430 to 85020. [2025-04-13 18:07:33,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85020 states, 85019 states have (on average 4.926322351474377) internal successors, (418831), 85019 states have internal predecessors, (418831), 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) [2025-04-13 18:07:33,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85020 states to 85020 states and 418831 transitions. [2025-04-13 18:07:33,955 INFO L79 Accepts]: Start accepts. Automaton has 85020 states and 418831 transitions. Word has length 53 [2025-04-13 18:07:33,955 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:07:33,955 INFO L485 AbstractCegarLoop]: Abstraction has 85020 states and 418831 transitions. [2025-04-13 18:07:33,956 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2025-04-13 18:07:33,956 INFO L278 IsEmpty]: Start isEmpty. Operand 85020 states and 418831 transitions. [2025-04-13 18:07:34,424 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-04-13 18:07:34,424 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:07:34,424 INFO L218 NwaCegarLoop]: 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, 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] [2025-04-13 18:07:34,425 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-13 18:07:34,425 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-04-13 18:07:34,425 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:07:34,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1706838755, now seen corresponding path program 1 times [2025-04-13 18:07:34,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:07:34,425 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572413438] [2025-04-13 18:07:34,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 18:07:34,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:07:34,434 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-04-13 18:07:34,447 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-04-13 18:07:34,447 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 18:07:34,447 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:07:34,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 18:07:34,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:07:34,502 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572413438] [2025-04-13 18:07:34,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572413438] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:07:34,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:07:34,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-13 18:07:34,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860527154] [2025-04-13 18:07:34,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:07:34,502 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-13 18:07:34,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:07:34,503 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-13 18:07:34,503 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-13 18:07:34,503 INFO L87 Difference]: Start difference. First operand 85020 states and 418831 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2025-04-13 18:07:35,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:07:35,876 INFO L93 Difference]: Finished difference Result 111713 states and 548988 transitions. [2025-04-13 18:07:35,876 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-13 18:07:35,876 INFO L79 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) Word has length 53 [2025-04-13 18:07:35,877 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:07:36,282 INFO L225 Difference]: With dead ends: 111713 [2025-04-13 18:07:36,283 INFO L226 Difference]: Without dead ends: 38911 [2025-04-13 18:07:36,411 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-13 18:07:36,417 INFO L437 NwaCegarLoop]: 19 mSDtfsCounter, 28 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-04-13 18:07:36,417 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 28 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-04-13 18:07:36,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38911 states. [2025-04-13 18:07:37,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38911 to 38911. [2025-04-13 18:07:37,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38911 states, 38910 states have (on average 4.542739655615523) internal successors, (176758), 38910 states have internal predecessors, (176758), 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) [2025-04-13 18:07:37,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38911 states to 38911 states and 176758 transitions. [2025-04-13 18:07:37,718 INFO L79 Accepts]: Start accepts. Automaton has 38911 states and 176758 transitions. Word has length 53 [2025-04-13 18:07:37,718 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:07:37,718 INFO L485 AbstractCegarLoop]: Abstraction has 38911 states and 176758 transitions. [2025-04-13 18:07:37,719 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2025-04-13 18:07:37,719 INFO L278 IsEmpty]: Start isEmpty. Operand 38911 states and 176758 transitions. [2025-04-13 18:07:37,799 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-04-13 18:07:37,799 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:07:37,800 INFO L218 NwaCegarLoop]: 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, 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] [2025-04-13 18:07:37,800 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-13 18:07:37,800 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-04-13 18:07:37,800 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:07:37,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1540176917, now seen corresponding path program 2 times [2025-04-13 18:07:37,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:07:37,800 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770636023] [2025-04-13 18:07:37,801 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 18:07:37,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:07:37,814 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 53 statements into 1 equivalence classes. [2025-04-13 18:07:37,840 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-04-13 18:07:37,840 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 18:07:37,840 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:07:37,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 18:07:37,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:07:37,980 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770636023] [2025-04-13 18:07:37,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770636023] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:07:37,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:07:37,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-13 18:07:37,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174956965] [2025-04-13 18:07:37,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:07:37,980 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-13 18:07:37,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:07:37,980 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-13 18:07:37,980 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-13 18:07:37,981 INFO L87 Difference]: Start difference. First operand 38911 states and 176758 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 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) [2025-04-13 18:07:39,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:07:39,252 INFO L93 Difference]: Finished difference Result 105297 states and 469763 transitions. [2025-04-13 18:07:39,252 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-13 18:07:39,252 INFO L79 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 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) Word has length 53 [2025-04-13 18:07:39,252 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:07:39,686 INFO L225 Difference]: With dead ends: 105297 [2025-04-13 18:07:39,686 INFO L226 Difference]: Without dead ends: 83800 [2025-04-13 18:07:39,739 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-04-13 18:07:39,740 INFO L437 NwaCegarLoop]: 29 mSDtfsCounter, 101 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-04-13 18:07:39,740 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 74 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-04-13 18:07:39,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83800 states. [2025-04-13 18:07:41,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83800 to 50154. [2025-04-13 18:07:41,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50154 states, 50153 states have (on average 4.496201623033517) internal successors, (225498), 50153 states have internal predecessors, (225498), 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) [2025-04-13 18:07:41,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50154 states to 50154 states and 225498 transitions. [2025-04-13 18:07:41,839 INFO L79 Accepts]: Start accepts. Automaton has 50154 states and 225498 transitions. Word has length 53 [2025-04-13 18:07:41,840 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:07:41,840 INFO L485 AbstractCegarLoop]: Abstraction has 50154 states and 225498 transitions. [2025-04-13 18:07:41,840 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 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) [2025-04-13 18:07:41,840 INFO L278 IsEmpty]: Start isEmpty. Operand 50154 states and 225498 transitions. [2025-04-13 18:07:41,979 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-04-13 18:07:41,980 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:07:41,980 INFO L218 NwaCegarLoop]: 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, 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] [2025-04-13 18:07:41,980 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-13 18:07:41,980 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-04-13 18:07:41,980 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:07:41,980 INFO L85 PathProgramCache]: Analyzing trace with hash -22594562, now seen corresponding path program 1 times [2025-04-13 18:07:41,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:07:41,981 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243481633] [2025-04-13 18:07:41,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 18:07:41,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:07:41,988 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-04-13 18:07:41,998 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-04-13 18:07:41,998 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 18:07:41,998 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:07:42,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 18:07:42,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:07:42,126 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243481633] [2025-04-13 18:07:42,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243481633] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:07:42,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:07:42,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-04-13 18:07:42,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646241520] [2025-04-13 18:07:42,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:07:42,127 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-13 18:07:42,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:07:42,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-13 18:07:42,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-04-13 18:07:42,127 INFO L87 Difference]: Start difference. First operand 50154 states and 225498 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2025-04-13 18:07:43,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:07:43,385 INFO L93 Difference]: Finished difference Result 113902 states and 501494 transitions. [2025-04-13 18:07:43,385 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-13 18:07:43,385 INFO L79 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) Word has length 53 [2025-04-13 18:07:43,385 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:07:44,152 INFO L225 Difference]: With dead ends: 113902 [2025-04-13 18:07:44,153 INFO L226 Difference]: Without dead ends: 92532 [2025-04-13 18:07:44,205 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2025-04-13 18:07:44,206 INFO L437 NwaCegarLoop]: 35 mSDtfsCounter, 142 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-04-13 18:07:44,206 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 97 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-04-13 18:07:44,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92532 states. [2025-04-13 18:07:46,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92532 to 58616. [2025-04-13 18:07:46,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58616 states, 58615 states have (on average 4.463413801927834) internal successors, (261623), 58615 states have internal predecessors, (261623), 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) [2025-04-13 18:07:46,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58616 states to 58616 states and 261623 transitions. [2025-04-13 18:07:46,848 INFO L79 Accepts]: Start accepts. Automaton has 58616 states and 261623 transitions. Word has length 53 [2025-04-13 18:07:46,848 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:07:46,849 INFO L485 AbstractCegarLoop]: Abstraction has 58616 states and 261623 transitions. [2025-04-13 18:07:46,849 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2025-04-13 18:07:46,849 INFO L278 IsEmpty]: Start isEmpty. Operand 58616 states and 261623 transitions. [2025-04-13 18:07:46,989 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-04-13 18:07:46,989 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:07:46,989 INFO L218 NwaCegarLoop]: 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, 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] [2025-04-13 18:07:46,989 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-13 18:07:46,990 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-04-13 18:07:46,991 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:07:46,991 INFO L85 PathProgramCache]: Analyzing trace with hash -844222123, now seen corresponding path program 2 times [2025-04-13 18:07:46,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:07:46,991 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868482887] [2025-04-13 18:07:46,991 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 18:07:46,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:07:46,998 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 53 statements into 1 equivalence classes. [2025-04-13 18:07:47,018 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-04-13 18:07:47,019 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 18:07:47,019 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:07:47,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 18:07:47,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:07:47,141 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868482887] [2025-04-13 18:07:47,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868482887] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:07:47,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:07:47,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-04-13 18:07:47,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975060547] [2025-04-13 18:07:47,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:07:47,142 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-13 18:07:47,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:07:47,142 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-13 18:07:47,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-04-13 18:07:47,142 INFO L87 Difference]: Start difference. First operand 58616 states and 261623 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2025-04-13 18:07:48,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:07:48,115 INFO L93 Difference]: Finished difference Result 97360 states and 427849 transitions. [2025-04-13 18:07:48,116 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-13 18:07:48,116 INFO L79 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) Word has length 53 [2025-04-13 18:07:48,116 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:07:48,852 INFO L225 Difference]: With dead ends: 97360 [2025-04-13 18:07:48,852 INFO L226 Difference]: Without dead ends: 82225 [2025-04-13 18:07:48,894 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2025-04-13 18:07:48,895 INFO L437 NwaCegarLoop]: 46 mSDtfsCounter, 169 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-04-13 18:07:48,895 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 141 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-04-13 18:07:48,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82225 states. [2025-04-13 18:07:50,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82225 to 61275. [2025-04-13 18:07:50,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61275 states, 61274 states have (on average 4.449799262329862) internal successors, (272657), 61274 states have internal predecessors, (272657), 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) [2025-04-13 18:07:50,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61275 states to 61275 states and 272657 transitions. [2025-04-13 18:07:51,052 INFO L79 Accepts]: Start accepts. Automaton has 61275 states and 272657 transitions. Word has length 53 [2025-04-13 18:07:51,053 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:07:51,053 INFO L485 AbstractCegarLoop]: Abstraction has 61275 states and 272657 transitions. [2025-04-13 18:07:51,053 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2025-04-13 18:07:51,053 INFO L278 IsEmpty]: Start isEmpty. Operand 61275 states and 272657 transitions. [2025-04-13 18:07:51,445 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-04-13 18:07:51,445 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:07:51,445 INFO L218 NwaCegarLoop]: 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, 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] [2025-04-13 18:07:51,445 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-04-13 18:07:51,445 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-04-13 18:07:51,446 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:07:51,446 INFO L85 PathProgramCache]: Analyzing trace with hash -203804500, now seen corresponding path program 1 times [2025-04-13 18:07:51,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:07:51,446 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554756869] [2025-04-13 18:07:51,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 18:07:51,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:07:51,451 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-04-13 18:07:51,456 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-04-13 18:07:51,457 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 18:07:51,457 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:07:51,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 18:07:51,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:07:51,564 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554756869] [2025-04-13 18:07:51,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554756869] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:07:51,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:07:51,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-04-13 18:07:51,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425613064] [2025-04-13 18:07:51,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:07:51,564 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-13 18:07:51,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:07:51,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-13 18:07:51,565 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-04-13 18:07:51,565 INFO L87 Difference]: Start difference. First operand 61275 states and 272657 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2025-04-13 18:07:52,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:07:52,526 INFO L93 Difference]: Finished difference Result 97579 states and 427521 transitions. [2025-04-13 18:07:52,526 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-13 18:07:52,526 INFO L79 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) Word has length 53 [2025-04-13 18:07:52,526 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:07:53,001 INFO L225 Difference]: With dead ends: 97579 [2025-04-13 18:07:53,002 INFO L226 Difference]: Without dead ends: 83349 [2025-04-13 18:07:53,062 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2025-04-13 18:07:53,063 INFO L437 NwaCegarLoop]: 46 mSDtfsCounter, 170 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-04-13 18:07:53,063 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 133 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-04-13 18:07:53,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83349 states. [2025-04-13 18:07:54,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83349 to 63829. [2025-04-13 18:07:54,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63829 states, 63828 states have (on average 4.431393745691546) internal successors, (282847), 63828 states have internal predecessors, (282847), 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) [2025-04-13 18:07:55,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63829 states to 63829 states and 282847 transitions. [2025-04-13 18:07:55,773 INFO L79 Accepts]: Start accepts. Automaton has 63829 states and 282847 transitions. Word has length 53 [2025-04-13 18:07:55,773 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:07:55,773 INFO L485 AbstractCegarLoop]: Abstraction has 63829 states and 282847 transitions. [2025-04-13 18:07:55,773 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2025-04-13 18:07:55,774 INFO L278 IsEmpty]: Start isEmpty. Operand 63829 states and 282847 transitions. [2025-04-13 18:07:55,971 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-04-13 18:07:55,971 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:07:55,971 INFO L218 NwaCegarLoop]: 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, 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] [2025-04-13 18:07:55,971 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-04-13 18:07:55,971 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-04-13 18:07:55,972 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:07:55,972 INFO L85 PathProgramCache]: Analyzing trace with hash -518872637, now seen corresponding path program 3 times [2025-04-13 18:07:55,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:07:55,972 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138352448] [2025-04-13 18:07:55,972 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-13 18:07:55,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:07:55,989 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 53 statements into 1 equivalence classes. [2025-04-13 18:07:55,995 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-04-13 18:07:55,995 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-13 18:07:55,995 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:07:56,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 18:07:56,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:07:56,090 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138352448] [2025-04-13 18:07:56,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138352448] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:07:56,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:07:56,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-04-13 18:07:56,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75024300] [2025-04-13 18:07:56,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:07:56,091 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-13 18:07:56,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:07:56,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-13 18:07:56,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-04-13 18:07:56,091 INFO L87 Difference]: Start difference. First operand 63829 states and 282847 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2025-04-13 18:07:57,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:07:57,551 INFO L93 Difference]: Finished difference Result 122433 states and 533201 transitions. [2025-04-13 18:07:57,551 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-13 18:07:57,551 INFO L79 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) Word has length 53 [2025-04-13 18:07:57,551 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:07:58,199 INFO L225 Difference]: With dead ends: 122433 [2025-04-13 18:07:58,199 INFO L226 Difference]: Without dead ends: 98218 [2025-04-13 18:07:58,266 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2025-04-13 18:07:58,267 INFO L437 NwaCegarLoop]: 35 mSDtfsCounter, 129 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-04-13 18:07:58,267 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 104 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-04-13 18:07:58,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98218 states. [2025-04-13 18:08:00,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98218 to 68538. [2025-04-13 18:08:00,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68538 states, 68537 states have (on average 4.398879437384187) internal successors, (301486), 68537 states have internal predecessors, (301486), 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) [2025-04-13 18:08:00,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68538 states to 68538 states and 301486 transitions. [2025-04-13 18:08:01,077 INFO L79 Accepts]: Start accepts. Automaton has 68538 states and 301486 transitions. Word has length 53 [2025-04-13 18:08:01,077 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:08:01,077 INFO L485 AbstractCegarLoop]: Abstraction has 68538 states and 301486 transitions. [2025-04-13 18:08:01,078 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2025-04-13 18:08:01,078 INFO L278 IsEmpty]: Start isEmpty. Operand 68538 states and 301486 transitions. [2025-04-13 18:08:01,252 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-04-13 18:08:01,253 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:08:01,253 INFO L218 NwaCegarLoop]: 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, 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] [2025-04-13 18:08:01,253 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-04-13 18:08:01,253 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-04-13 18:08:01,253 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:08:01,253 INFO L85 PathProgramCache]: Analyzing trace with hash 861744796, now seen corresponding path program 2 times [2025-04-13 18:08:01,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:08:01,253 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821559186] [2025-04-13 18:08:01,254 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 18:08:01,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:08:01,259 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 53 statements into 1 equivalence classes. [2025-04-13 18:08:01,264 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-04-13 18:08:01,264 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 18:08:01,264 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:08:01,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 18:08:01,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:08:01,329 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821559186] [2025-04-13 18:08:01,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821559186] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:08:01,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:08:01,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-04-13 18:08:01,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505373254] [2025-04-13 18:08:01,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:08:01,330 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-13 18:08:01,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:08:01,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-13 18:08:01,330 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-04-13 18:08:01,330 INFO L87 Difference]: Start difference. First operand 68538 states and 301486 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2025-04-13 18:08:02,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:08:02,892 INFO L93 Difference]: Finished difference Result 119829 states and 519646 transitions. [2025-04-13 18:08:02,892 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-13 18:08:02,892 INFO L79 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) Word has length 53 [2025-04-13 18:08:02,892 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:08:03,574 INFO L225 Difference]: With dead ends: 119829 [2025-04-13 18:08:03,574 INFO L226 Difference]: Without dead ends: 98111 [2025-04-13 18:08:03,645 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2025-04-13 18:08:03,646 INFO L437 NwaCegarLoop]: 35 mSDtfsCounter, 139 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-04-13 18:08:03,646 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 102 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-04-13 18:08:03,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98111 states. [2025-04-13 18:08:05,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98111 to 70818. [2025-04-13 18:08:06,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70818 states, 70817 states have (on average 4.366776339014644) internal successors, (309242), 70817 states have internal predecessors, (309242), 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) [2025-04-13 18:08:06,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70818 states to 70818 states and 309242 transitions. [2025-04-13 18:08:06,655 INFO L79 Accepts]: Start accepts. Automaton has 70818 states and 309242 transitions. Word has length 53 [2025-04-13 18:08:06,655 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:08:06,655 INFO L485 AbstractCegarLoop]: Abstraction has 70818 states and 309242 transitions. [2025-04-13 18:08:06,656 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2025-04-13 18:08:06,656 INFO L278 IsEmpty]: Start isEmpty. Operand 70818 states and 309242 transitions. [2025-04-13 18:08:06,822 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-04-13 18:08:06,823 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:08:06,823 INFO L218 NwaCegarLoop]: 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, 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] [2025-04-13 18:08:06,823 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-04-13 18:08:06,823 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-04-13 18:08:06,823 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:08:06,823 INFO L85 PathProgramCache]: Analyzing trace with hash -190572222, now seen corresponding path program 2 times [2025-04-13 18:08:06,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:08:06,824 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842603655] [2025-04-13 18:08:06,824 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 18:08:06,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:08:06,829 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 53 statements into 1 equivalence classes. [2025-04-13 18:08:06,836 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-04-13 18:08:06,836 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 18:08:06,836 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:08:07,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 18:08:07,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:08:07,164 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842603655] [2025-04-13 18:08:07,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842603655] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:08:07,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:08:07,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-13 18:08:07,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686474998] [2025-04-13 18:08:07,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:08:07,165 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-13 18:08:07,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:08:07,165 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-13 18:08:07,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-13 18:08:07,165 INFO L87 Difference]: Start difference. First operand 70818 states and 309242 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 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)