/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-barrier.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-94356ea-m [2025-04-13 18:02:34,709 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-13 18:02:34,757 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 18:02:34,761 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-13 18:02:34,761 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-13 18:02:34,781 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-13 18:02:34,781 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-13 18:02:34,781 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-13 18:02:34,781 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-13 18:02:34,781 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-13 18:02:34,781 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-13 18:02:34,781 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-13 18:02:34,782 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-13 18:02:34,782 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-13 18:02:34,782 INFO L153 SettingsManager]: * Use SBE=true [2025-04-13 18:02:34,782 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-13 18:02:34,782 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-13 18:02:34,782 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-13 18:02:34,782 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-13 18:02:34,782 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-13 18:02:34,782 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-13 18:02:34,782 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-13 18:02:34,782 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-13 18:02:34,782 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-13 18:02:34,782 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-13 18:02:34,782 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-13 18:02:34,783 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-13 18:02:34,783 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-13 18:02:34,783 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-13 18:02:34,783 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 18:02:34,783 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 18:02:34,783 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 18:02:34,783 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 18:02:34,783 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-13 18:02:34,783 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 18:02:34,783 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 18:02:34,783 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 18:02:34,783 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 18:02:34,783 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-13 18:02:34,783 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-13 18:02:34,783 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-13 18:02:34,783 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-13 18:02:34,783 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-13 18:02:34,784 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-13 18:02:34,784 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-13 18:02:34,784 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-13 18:02:34,784 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-13 18:02:34,784 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 18:02:35,008 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-13 18:02:35,014 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-13 18:02:35,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-13 18:02:35,016 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-13 18:02:35,016 INFO L274 PluginConnector]: CDTParser initialized [2025-04-13 18:02:35,017 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-barrier.wvr.c [2025-04-13 18:02:36,310 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f740d3688/85fe2048ed26422a959c4090ada29a72/FLAGa49555732 [2025-04-13 18:02:36,507 INFO L389 CDTParser]: Found 1 translation units. [2025-04-13 18:02:36,507 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-barrier.wvr.c [2025-04-13 18:02:36,518 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f740d3688/85fe2048ed26422a959c4090ada29a72/FLAGa49555732 [2025-04-13 18:02:37,362 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f740d3688/85fe2048ed26422a959c4090ada29a72 [2025-04-13 18:02:37,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-13 18:02:37,365 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-13 18:02:37,366 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-13 18:02:37,366 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-13 18:02:37,369 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-13 18:02:37,370 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 06:02:37" (1/1) ... [2025-04-13 18:02:37,371 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b814a09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:02:37, skipping insertion in model container [2025-04-13 18:02:37,371 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 06:02:37" (1/1) ... [2025-04-13 18:02:37,381 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-13 18:02:37,544 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-barrier.wvr.c[3418,3431] [2025-04-13 18:02:37,550 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 18:02:37,560 INFO L200 MainTranslator]: Completed pre-run [2025-04-13 18:02:37,592 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-barrier.wvr.c[3418,3431] [2025-04-13 18:02:37,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 18:02:37,606 INFO L204 MainTranslator]: Completed translation [2025-04-13 18:02:37,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:02:37 WrapperNode [2025-04-13 18:02:37,608 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-13 18:02:37,609 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-13 18:02:37,609 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-13 18:02:37,609 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-13 18:02:37,614 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:02:37" (1/1) ... [2025-04-13 18:02:37,622 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:02:37" (1/1) ... [2025-04-13 18:02:37,650 INFO L138 Inliner]: procedures = 22, calls = 20, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 210 [2025-04-13 18:02:37,650 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-13 18:02:37,651 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-13 18:02:37,651 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-13 18:02:37,651 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-13 18:02:37,657 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:02:37" (1/1) ... [2025-04-13 18:02:37,658 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:02:37" (1/1) ... [2025-04-13 18:02:37,663 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:02:37" (1/1) ... [2025-04-13 18:02:37,682 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 18:02:37,682 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:02:37" (1/1) ... [2025-04-13 18:02:37,682 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:02:37" (1/1) ... [2025-04-13 18:02:37,689 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:02:37" (1/1) ... [2025-04-13 18:02:37,690 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:02:37" (1/1) ... [2025-04-13 18:02:37,698 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:02:37" (1/1) ... [2025-04-13 18:02:37,699 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:02:37" (1/1) ... [2025-04-13 18:02:37,700 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:02:37" (1/1) ... [2025-04-13 18:02:37,703 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-13 18:02:37,709 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-13 18:02:37,709 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-13 18:02:37,709 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-13 18:02:37,710 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:02:37" (1/1) ... [2025-04-13 18:02:37,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 18:02:37,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 18:02:37,746 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 18:02:37,748 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 18:02:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-13 18:02:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-13 18:02:37,767 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-13 18:02:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-13 18:02:37,767 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-13 18:02:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-13 18:02:37,767 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-13 18:02:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-04-13 18:02:37,767 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-04-13 18:02:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-13 18:02:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-04-13 18:02:37,767 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-04-13 18:02:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2025-04-13 18:02:37,768 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2025-04-13 18:02:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-13 18:02:37,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-13 18:02:37,769 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 18:02:37,841 INFO L234 CfgBuilder]: Building ICFG [2025-04-13 18:02:37,843 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-13 18:02:38,063 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-13 18:02:38,064 INFO L289 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-13 18:02:38,064 INFO L294 CfgBuilder]: Performing block encoding [2025-04-13 18:02:38,233 INFO L313 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-13 18:02:38,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 06:02:38 BoogieIcfgContainer [2025-04-13 18:02:38,234 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-13 18:02:38,235 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-13 18:02:38,236 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-13 18:02:38,239 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-13 18:02:38,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.04 06:02:37" (1/3) ... [2025-04-13 18:02:38,239 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1070b085 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 06:02:38, skipping insertion in model container [2025-04-13 18:02:38,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:02:37" (2/3) ... [2025-04-13 18:02:38,239 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1070b085 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 06:02:38, skipping insertion in model container [2025-04-13 18:02:38,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 06:02:38" (3/3) ... [2025-04-13 18:02:38,240 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-barrier.wvr.c [2025-04-13 18:02:38,265 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-13 18:02:38,266 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-barrier.wvr.c that has 7 procedures, 72 locations, 65 edges, 1 initial locations, 0 loop locations, and 1 error locations. [2025-04-13 18:02:38,266 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-13 18:02:38,330 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2025-04-13 18:02:38,352 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 96 places, 81 transitions, 228 flow [2025-04-13 18:02:39,542 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 30647 states, 30646 states have (on average 4.835149774848268) internal successors, (148178), 30646 states have internal predecessors, (148178), 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 18:02:39,559 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-13 18:02:39,569 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;@1487a1da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-13 18:02:39,569 INFO L341 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2025-04-13 18:02:39,632 INFO L278 IsEmpty]: Start isEmpty. Operand has 30647 states, 30646 states have (on average 4.835149774848268) internal successors, (148178), 30646 states have internal predecessors, (148178), 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 18:02:39,863 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:02:39,863 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:02:39,864 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:02:39,864 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:02:39,868 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:02:39,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1825997191, now seen corresponding path program 1 times [2025-04-13 18:02:39,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:02:39,875 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238669845] [2025-04-13 18:02:39,875 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 18:02:39,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:02:39,943 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:02:39,980 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:02:39,981 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 18:02:39,981 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:02:40,244 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 18:02:40,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:02:40,245 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238669845] [2025-04-13 18:02:40,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238669845] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:02:40,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:02:40,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-13 18:02:40,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937026022] [2025-04-13 18:02:40,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:02:40,250 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-13 18:02:40,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:02:40,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-13 18:02:40,264 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-13 18:02:40,319 INFO L87 Difference]: Start difference. First operand has 30647 states, 30646 states have (on average 4.835149774848268) internal successors, (148178), 30646 states have internal predecessors, (148178), 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, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 18:02:41,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:02:41,173 INFO L93 Difference]: Finished difference Result 37964 states and 181876 transitions. [2025-04-13 18:02:41,174 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-13 18:02:41,175 INFO L79 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 64 [2025-04-13 18:02:41,176 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:02:41,456 INFO L225 Difference]: With dead ends: 37964 [2025-04-13 18:02:41,457 INFO L226 Difference]: Without dead ends: 26183 [2025-04-13 18:02:41,522 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 18:02:41,524 INFO L437 NwaCegarLoop]: 26 mSDtfsCounter, 30 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-04-13 18:02:41,524 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 41 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-04-13 18:02:41,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26183 states. [2025-04-13 18:02:42,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26183 to 26183. [2025-04-13 18:02:42,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26183 states, 26182 states have (on average 4.778855702390955) internal successors, (125120), 26182 states have internal predecessors, (125120), 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 18:02:42,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26183 states to 26183 states and 125120 transitions. [2025-04-13 18:02:42,751 INFO L79 Accepts]: Start accepts. Automaton has 26183 states and 125120 transitions. Word has length 64 [2025-04-13 18:02:42,752 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:02:42,752 INFO L485 AbstractCegarLoop]: Abstraction has 26183 states and 125120 transitions. [2025-04-13 18:02:42,753 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 18:02:42,753 INFO L278 IsEmpty]: Start isEmpty. Operand 26183 states and 125120 transitions. [2025-04-13 18:02:42,859 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:02:42,860 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:02:42,860 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:02:42,860 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-13 18:02:42,860 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:02:42,861 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:02:42,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1568288727, now seen corresponding path program 2 times [2025-04-13 18:02:42,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:02:42,861 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886319987] [2025-04-13 18:02:42,862 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 18:02:42,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:02:42,883 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:02:42,894 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:02:42,894 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 18:02:42,894 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:02:43,006 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 18:02:43,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:02:43,007 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886319987] [2025-04-13 18:02:43,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886319987] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:02:43,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:02:43,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-13 18:02:43,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344044134] [2025-04-13 18:02:43,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:02:43,008 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-13 18:02:43,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:02:43,008 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-13 18:02:43,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-13 18:02:43,008 INFO L87 Difference]: Start difference. First operand 26183 states and 125120 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 18:02:43,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:02:43,457 INFO L93 Difference]: Finished difference Result 32515 states and 154342 transitions. [2025-04-13 18:02:43,457 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-13 18:02:43,458 INFO L79 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 64 [2025-04-13 18:02:43,458 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:02:43,561 INFO L225 Difference]: With dead ends: 32515 [2025-04-13 18:02:43,562 INFO L226 Difference]: Without dead ends: 20486 [2025-04-13 18:02:43,593 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 18:02:43,594 INFO L437 NwaCegarLoop]: 26 mSDtfsCounter, 33 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-04-13 18:02:43,594 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 36 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-04-13 18:02:43,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20486 states. [2025-04-13 18:02:44,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20486 to 20486. [2025-04-13 18:02:44,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20486 states, 20485 states have (on average 4.700512570173298) internal successors, (96290), 20485 states have internal predecessors, (96290), 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 18:02:44,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20486 states to 20486 states and 96290 transitions. [2025-04-13 18:02:44,692 INFO L79 Accepts]: Start accepts. Automaton has 20486 states and 96290 transitions. Word has length 64 [2025-04-13 18:02:44,692 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:02:44,692 INFO L485 AbstractCegarLoop]: Abstraction has 20486 states and 96290 transitions. [2025-04-13 18:02:44,692 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 18:02:44,692 INFO L278 IsEmpty]: Start isEmpty. Operand 20486 states and 96290 transitions. [2025-04-13 18:02:44,737 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:02:44,737 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:02:44,737 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:02:44,738 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-13 18:02:44,738 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:02:44,738 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:02:44,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1191744253, now seen corresponding path program 3 times [2025-04-13 18:02:44,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:02:44,738 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503783482] [2025-04-13 18:02:44,738 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-13 18:02:44,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:02:44,749 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:02:44,768 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:02:44,768 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-13 18:02:44,768 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:02:45,525 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 18:02:45,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:02:45,525 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503783482] [2025-04-13 18:02:45,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503783482] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:02:45,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:02:45,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-04-13 18:02:45,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511079186] [2025-04-13 18:02:45,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:02:45,526 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-13 18:02:45,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:02:45,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-13 18:02:45,526 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2025-04-13 18:02:45,526 INFO L87 Difference]: Start difference. First operand 20486 states and 96290 transitions. Second operand has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:02:47,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:02:47,920 INFO L93 Difference]: Finished difference Result 25508 states and 119786 transitions. [2025-04-13 18:02:47,921 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-04-13 18:02:47,921 INFO L79 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 64 [2025-04-13 18:02:47,921 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:02:48,046 INFO L225 Difference]: With dead ends: 25508 [2025-04-13 18:02:48,046 INFO L226 Difference]: Without dead ends: 24846 [2025-04-13 18:02:48,054 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=174, Invalid=1632, Unknown=0, NotChecked=0, Total=1806 [2025-04-13 18:02:48,055 INFO L437 NwaCegarLoop]: 74 mSDtfsCounter, 483 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 4318 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 4324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-04-13 18:02:48,055 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 782 Invalid, 4324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4318 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-04-13 18:02:48,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24846 states. [2025-04-13 18:02:48,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24846 to 21214. [2025-04-13 18:02:48,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21214 states, 21213 states have (on average 4.688162918964785) internal successors, (99450), 21213 states have internal predecessors, (99450), 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 18:02:48,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21214 states to 21214 states and 99450 transitions. [2025-04-13 18:02:48,620 INFO L79 Accepts]: Start accepts. Automaton has 21214 states and 99450 transitions. Word has length 64 [2025-04-13 18:02:48,620 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:02:48,620 INFO L485 AbstractCegarLoop]: Abstraction has 21214 states and 99450 transitions. [2025-04-13 18:02:48,620 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:02:48,620 INFO L278 IsEmpty]: Start isEmpty. Operand 21214 states and 99450 transitions. [2025-04-13 18:02:48,665 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:02:48,666 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:02:48,666 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:02:48,666 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-13 18:02:48,666 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:02:48,666 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:02:48,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1843805147, now seen corresponding path program 4 times [2025-04-13 18:02:48,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:02:48,667 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226324561] [2025-04-13 18:02:48,667 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-13 18:02:48,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:02:48,677 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 64 statements into 2 equivalence classes. [2025-04-13 18:02:48,690 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:02:48,690 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-13 18:02:48,690 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:02:49,404 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 18:02:49,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:02:49,404 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226324561] [2025-04-13 18:02:49,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226324561] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:02:49,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:02:49,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-04-13 18:02:49,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499516353] [2025-04-13 18:02:49,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:02:49,405 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-04-13 18:02:49,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:02:49,405 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-04-13 18:02:49,405 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2025-04-13 18:02:49,405 INFO L87 Difference]: Start difference. First operand 21214 states and 99450 transitions. Second operand has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:02:51,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:02:51,023 INFO L93 Difference]: Finished difference Result 25172 states and 118308 transitions. [2025-04-13 18:02:51,023 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-04-13 18:02:51,023 INFO L79 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 64 [2025-04-13 18:02:51,024 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:02:51,168 INFO L225 Difference]: With dead ends: 25172 [2025-04-13 18:02:51,168 INFO L226 Difference]: Without dead ends: 24510 [2025-04-13 18:02:51,177 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=145, Invalid=1261, Unknown=0, NotChecked=0, Total=1406 [2025-04-13 18:02:51,177 INFO L437 NwaCegarLoop]: 76 mSDtfsCounter, 393 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 3633 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 3636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-04-13 18:02:51,177 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 559 Invalid, 3636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3633 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-04-13 18:02:51,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24510 states. [2025-04-13 18:02:51,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24510 to 21902. [2025-04-13 18:02:51,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21902 states, 21901 states have (on average 4.691201315008447) internal successors, (102742), 21901 states have internal predecessors, (102742), 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 18:02:51,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21902 states to 21902 states and 102742 transitions. [2025-04-13 18:02:51,885 INFO L79 Accepts]: Start accepts. Automaton has 21902 states and 102742 transitions. Word has length 64 [2025-04-13 18:02:51,886 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:02:51,886 INFO L485 AbstractCegarLoop]: Abstraction has 21902 states and 102742 transitions. [2025-04-13 18:02:51,886 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:02:51,886 INFO L278 IsEmpty]: Start isEmpty. Operand 21902 states and 102742 transitions. [2025-04-13 18:02:51,940 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:02:51,940 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:02:51,940 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:02:51,940 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-13 18:02:51,940 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:02:51,940 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:02:51,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1544797605, now seen corresponding path program 5 times [2025-04-13 18:02:51,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:02:51,941 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227491598] [2025-04-13 18:02:51,941 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-13 18:02:51,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:02:51,949 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:02:51,956 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:02:51,956 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 18:02:51,956 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:02:52,411 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 18:02:52,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:02:52,411 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227491598] [2025-04-13 18:02:52,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227491598] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:02:52,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:02:52,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-04-13 18:02:52,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810025617] [2025-04-13 18:02:52,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:02:52,412 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-13 18:02:52,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:02:52,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-13 18:02:52,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2025-04-13 18:02:52,413 INFO L87 Difference]: Start difference. First operand 21902 states and 102742 transitions. Second operand has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:02:54,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:02:54,288 INFO L93 Difference]: Finished difference Result 26578 states and 124404 transitions. [2025-04-13 18:02:54,289 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-04-13 18:02:54,289 INFO L79 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 64 [2025-04-13 18:02:54,290 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:02:54,443 INFO L225 Difference]: With dead ends: 26578 [2025-04-13 18:02:54,443 INFO L226 Difference]: Without dead ends: 26156 [2025-04-13 18:02:54,456 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=182, Invalid=1710, Unknown=0, NotChecked=0, Total=1892 [2025-04-13 18:02:54,457 INFO L437 NwaCegarLoop]: 72 mSDtfsCounter, 553 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 4274 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 4280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-04-13 18:02:54,457 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 759 Invalid, 4280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4274 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-04-13 18:02:54,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26156 states. [2025-04-13 18:02:54,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26156 to 22238. [2025-04-13 18:02:54,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22238 states, 22237 states have (on average 4.6821963394342765) internal successors, (104118), 22237 states have internal predecessors, (104118), 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 18:02:55,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22238 states to 22238 states and 104118 transitions. [2025-04-13 18:02:55,102 INFO L79 Accepts]: Start accepts. Automaton has 22238 states and 104118 transitions. Word has length 64 [2025-04-13 18:02:55,103 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:02:55,103 INFO L485 AbstractCegarLoop]: Abstraction has 22238 states and 104118 transitions. [2025-04-13 18:02:55,103 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:02:55,103 INFO L278 IsEmpty]: Start isEmpty. Operand 22238 states and 104118 transitions. [2025-04-13 18:02:55,161 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:02:55,161 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:02:55,161 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:02:55,161 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-13 18:02:55,161 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:02:55,162 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:02:55,162 INFO L85 PathProgramCache]: Analyzing trace with hash 285379709, now seen corresponding path program 6 times [2025-04-13 18:02:55,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:02:55,162 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764844722] [2025-04-13 18:02:55,162 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-13 18:02:55,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:02:55,171 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:02:55,180 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:02:55,180 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-04-13 18:02:55,180 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:02:55,666 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 18:02:55,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:02:55,667 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764844722] [2025-04-13 18:02:55,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764844722] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:02:55,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:02:55,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-04-13 18:02:55,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054404903] [2025-04-13 18:02:55,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:02:55,667 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-04-13 18:02:55,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:02:55,667 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-04-13 18:02:55,667 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2025-04-13 18:02:55,668 INFO L87 Difference]: Start difference. First operand 22238 states and 104118 transitions. Second operand has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:02:57,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:02:57,208 INFO L93 Difference]: Finished difference Result 25124 states and 117964 transitions. [2025-04-13 18:02:57,208 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2025-04-13 18:02:57,208 INFO L79 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 64 [2025-04-13 18:02:57,209 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:02:57,312 INFO L225 Difference]: With dead ends: 25124 [2025-04-13 18:02:57,312 INFO L226 Difference]: Without dead ends: 24462 [2025-04-13 18:02:57,322 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=153, Invalid=1329, Unknown=0, NotChecked=0, Total=1482 [2025-04-13 18:02:57,323 INFO L437 NwaCegarLoop]: 75 mSDtfsCounter, 456 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 3713 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 3718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-04-13 18:02:57,323 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 548 Invalid, 3718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3713 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-04-13 18:02:57,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24462 states. [2025-04-13 18:02:57,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24462 to 22142. [2025-04-13 18:02:57,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22142 states, 22141 states have (on average 4.682263673727474) internal successors, (103670), 22141 states have internal predecessors, (103670), 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 18:02:57,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22142 states to 22142 states and 103670 transitions. [2025-04-13 18:02:57,840 INFO L79 Accepts]: Start accepts. Automaton has 22142 states and 103670 transitions. Word has length 64 [2025-04-13 18:02:57,840 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:02:57,840 INFO L485 AbstractCegarLoop]: Abstraction has 22142 states and 103670 transitions. [2025-04-13 18:02:57,841 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:02:57,841 INFO L278 IsEmpty]: Start isEmpty. Operand 22142 states and 103670 transitions. [2025-04-13 18:02:57,884 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:02:57,885 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:02:57,885 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:02:57,885 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-04-13 18:02:57,885 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:02:57,885 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:02:57,885 INFO L85 PathProgramCache]: Analyzing trace with hash 2049053955, now seen corresponding path program 7 times [2025-04-13 18:02:57,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:02:57,885 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864659688] [2025-04-13 18:02:57,885 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-13 18:02:57,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:02:57,893 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:02:57,901 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:02:57,901 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 18:02:57,901 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:02:58,209 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 18:02:58,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:02:58,209 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864659688] [2025-04-13 18:02:58,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864659688] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:02:58,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:02:58,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-04-13 18:02:58,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787463753] [2025-04-13 18:02:58,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:02:58,210 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-13 18:02:58,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:02:58,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-13 18:02:58,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2025-04-13 18:02:58,210 INFO L87 Difference]: Start difference. First operand 22142 states and 103670 transitions. Second operand has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:02:59,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:02:59,882 INFO L93 Difference]: Finished difference Result 26060 states and 122246 transitions. [2025-04-13 18:02:59,882 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-04-13 18:02:59,883 INFO L79 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 64 [2025-04-13 18:02:59,883 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:02:59,999 INFO L225 Difference]: With dead ends: 26060 [2025-04-13 18:02:59,999 INFO L226 Difference]: Without dead ends: 25518 [2025-04-13 18:03:00,014 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=176, Invalid=1630, Unknown=0, NotChecked=0, Total=1806 [2025-04-13 18:03:00,015 INFO L437 NwaCegarLoop]: 72 mSDtfsCounter, 484 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 4279 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 4285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-04-13 18:03:00,015 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 757 Invalid, 4285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4279 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-04-13 18:03:00,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25518 states. [2025-04-13 18:03:00,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25518 to 21806. [2025-04-13 18:03:00,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21806 states, 21805 states have (on average 4.691309332721853) internal successors, (102294), 21805 states have internal predecessors, (102294), 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 18:03:00,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21806 states to 21806 states and 102294 transitions. [2025-04-13 18:03:00,583 INFO L79 Accepts]: Start accepts. Automaton has 21806 states and 102294 transitions. Word has length 64 [2025-04-13 18:03:00,584 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:03:00,584 INFO L485 AbstractCegarLoop]: Abstraction has 21806 states and 102294 transitions. [2025-04-13 18:03:00,584 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:03:00,584 INFO L278 IsEmpty]: Start isEmpty. Operand 21806 states and 102294 transitions. [2025-04-13 18:03:00,626 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:03:00,626 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:03:00,626 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:03:00,626 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-04-13 18:03:00,626 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:03:00,627 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:03:00,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1043317711, now seen corresponding path program 8 times [2025-04-13 18:03:00,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:03:00,627 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415218383] [2025-04-13 18:03:00,627 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 18:03:00,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:03:00,633 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:03:00,637 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:03:00,637 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 18:03:00,637 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:03:00,908 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 18:03:00,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:03:00,909 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415218383] [2025-04-13 18:03:00,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415218383] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:03:00,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:03:00,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-04-13 18:03:00,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162261074] [2025-04-13 18:03:00,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:03:00,909 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-04-13 18:03:00,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:03:00,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-04-13 18:03:00,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2025-04-13 18:03:00,909 INFO L87 Difference]: Start difference. First operand 21806 states and 102294 transitions. Second operand has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:03:02,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:03:02,398 INFO L93 Difference]: Finished difference Result 25004 states and 117392 transitions. [2025-04-13 18:03:02,398 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2025-04-13 18:03:02,398 INFO L79 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 64 [2025-04-13 18:03:02,398 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:03:02,501 INFO L225 Difference]: With dead ends: 25004 [2025-04-13 18:03:02,501 INFO L226 Difference]: Without dead ends: 24102 [2025-04-13 18:03:02,513 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=159, Invalid=1401, Unknown=0, NotChecked=0, Total=1560 [2025-04-13 18:03:02,514 INFO L437 NwaCegarLoop]: 73 mSDtfsCounter, 418 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 3853 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 3858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-04-13 18:03:02,514 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 537 Invalid, 3858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3853 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-04-13 18:03:02,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24102 states. [2025-04-13 18:03:03,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24102 to 21806. [2025-04-13 18:03:03,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21806 states, 21805 states have (on average 4.687640449438202) internal successors, (102214), 21805 states have internal predecessors, (102214), 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 18:03:03,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21806 states to 21806 states and 102214 transitions. [2025-04-13 18:03:03,318 INFO L79 Accepts]: Start accepts. Automaton has 21806 states and 102214 transitions. Word has length 64 [2025-04-13 18:03:03,319 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:03:03,319 INFO L485 AbstractCegarLoop]: Abstraction has 21806 states and 102214 transitions. [2025-04-13 18:03:03,320 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:03:03,320 INFO L278 IsEmpty]: Start isEmpty. Operand 21806 states and 102214 transitions. [2025-04-13 18:03:03,379 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:03:03,379 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:03:03,379 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:03:03,380 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-04-13 18:03:03,380 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:03:03,380 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:03:03,380 INFO L85 PathProgramCache]: Analyzing trace with hash 216100185, now seen corresponding path program 9 times [2025-04-13 18:03:03,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:03:03,380 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953142943] [2025-04-13 18:03:03,380 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-13 18:03:03,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:03:03,394 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:03:03,402 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:03:03,402 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-13 18:03:03,402 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:03:03,860 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 18:03:03,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:03:03,861 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953142943] [2025-04-13 18:03:03,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953142943] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:03:03,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:03:03,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-04-13 18:03:03,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986275760] [2025-04-13 18:03:03,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:03:03,861 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-13 18:03:03,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:03:03,862 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-13 18:03:03,862 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2025-04-13 18:03:03,862 INFO L87 Difference]: Start difference. First operand 21806 states and 102214 transitions. Second operand has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:03:05,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:03:05,523 INFO L93 Difference]: Finished difference Result 26122 states and 122328 transitions. [2025-04-13 18:03:05,524 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-04-13 18:03:05,524 INFO L79 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 64 [2025-04-13 18:03:05,524 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:03:05,640 INFO L225 Difference]: With dead ends: 26122 [2025-04-13 18:03:05,640 INFO L226 Difference]: Without dead ends: 25700 [2025-04-13 18:03:05,652 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=191, Invalid=1789, Unknown=0, NotChecked=0, Total=1980 [2025-04-13 18:03:05,653 INFO L437 NwaCegarLoop]: 70 mSDtfsCounter, 531 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 4273 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 4279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-04-13 18:03:05,654 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 738 Invalid, 4279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4273 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-04-13 18:03:05,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25700 states. [2025-04-13 18:03:06,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25700 to 21902. [2025-04-13 18:03:06,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21902 states, 21901 states have (on average 4.6853568330213236) internal successors, (102614), 21901 states have internal predecessors, (102614), 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 18:03:06,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21902 states to 21902 states and 102614 transitions. [2025-04-13 18:03:06,339 INFO L79 Accepts]: Start accepts. Automaton has 21902 states and 102614 transitions. Word has length 64 [2025-04-13 18:03:06,339 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:03:06,339 INFO L485 AbstractCegarLoop]: Abstraction has 21902 states and 102614 transitions. [2025-04-13 18:03:06,339 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:03:06,339 INFO L278 IsEmpty]: Start isEmpty. Operand 21902 states and 102614 transitions. [2025-04-13 18:03:06,383 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:03:06,384 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:03:06,384 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:03:06,384 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-04-13 18:03:06,384 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:03:06,384 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:03:06,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1832937573, now seen corresponding path program 10 times [2025-04-13 18:03:06,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:03:06,385 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112109527] [2025-04-13 18:03:06,385 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-13 18:03:06,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:03:06,389 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 64 statements into 2 equivalence classes. [2025-04-13 18:03:06,395 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:03:06,395 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-13 18:03:06,395 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:03:06,709 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 18:03:06,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:03:06,709 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112109527] [2025-04-13 18:03:06,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112109527] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:03:06,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:03:06,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-04-13 18:03:06,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541471220] [2025-04-13 18:03:06,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:03:06,710 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-04-13 18:03:06,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:03:06,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-04-13 18:03:06,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2025-04-13 18:03:06,710 INFO L87 Difference]: Start difference. First operand 21902 states and 102614 transitions. Second operand has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:03:08,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:03:08,591 INFO L93 Difference]: Finished difference Result 28515 states and 134022 transitions. [2025-04-13 18:03:08,591 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2025-04-13 18:03:08,591 INFO L79 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 64 [2025-04-13 18:03:08,592 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:03:08,724 INFO L225 Difference]: With dead ends: 28515 [2025-04-13 18:03:08,724 INFO L226 Difference]: Without dead ends: 28088 [2025-04-13 18:03:08,738 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=233, Invalid=2119, Unknown=0, NotChecked=0, Total=2352 [2025-04-13 18:03:08,739 INFO L437 NwaCegarLoop]: 105 mSDtfsCounter, 521 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 4897 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 4910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 4897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-04-13 18:03:08,739 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 787 Invalid, 4910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 4897 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-04-13 18:03:08,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28088 states. [2025-04-13 18:03:09,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28088 to 22268. [2025-04-13 18:03:09,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22268 states, 22267 states have (on average 4.688866933129743) internal successors, (104407), 22267 states have internal predecessors, (104407), 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 18:03:09,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22268 states to 22268 states and 104407 transitions. [2025-04-13 18:03:09,587 INFO L79 Accepts]: Start accepts. Automaton has 22268 states and 104407 transitions. Word has length 64 [2025-04-13 18:03:09,587 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:03:09,587 INFO L485 AbstractCegarLoop]: Abstraction has 22268 states and 104407 transitions. [2025-04-13 18:03:09,587 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:03:09,587 INFO L278 IsEmpty]: Start isEmpty. Operand 22268 states and 104407 transitions. [2025-04-13 18:03:09,631 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:03:09,631 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:03:09,631 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:03:09,631 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-04-13 18:03:09,631 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:03:09,631 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:03:09,632 INFO L85 PathProgramCache]: Analyzing trace with hash 720356535, now seen corresponding path program 11 times [2025-04-13 18:03:09,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:03:09,632 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862815851] [2025-04-13 18:03:09,632 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-13 18:03:09,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:03:09,636 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:03:09,641 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:03:09,641 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 18:03:09,641 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:03:09,934 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 18:03:09,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:03:09,935 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862815851] [2025-04-13 18:03:09,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862815851] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:03:09,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:03:09,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-04-13 18:03:09,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298988779] [2025-04-13 18:03:09,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:03:09,935 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-13 18:03:09,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:03:09,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-13 18:03:09,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2025-04-13 18:03:09,936 INFO L87 Difference]: Start difference. First operand 22268 states and 104407 transitions. Second operand has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:03:11,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:03:11,597 INFO L93 Difference]: Finished difference Result 26464 states and 123949 transitions. [2025-04-13 18:03:11,597 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-04-13 18:03:11,597 INFO L79 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 64 [2025-04-13 18:03:11,597 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:03:11,705 INFO L225 Difference]: With dead ends: 26464 [2025-04-13 18:03:11,705 INFO L226 Difference]: Without dead ends: 26018 [2025-04-13 18:03:11,717 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=192, Invalid=1788, Unknown=0, NotChecked=0, Total=1980 [2025-04-13 18:03:11,717 INFO L437 NwaCegarLoop]: 70 mSDtfsCounter, 569 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 4205 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 4211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-04-13 18:03:11,718 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 736 Invalid, 4211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4205 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-04-13 18:03:11,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26018 states. [2025-04-13 18:03:12,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26018 to 22220. [2025-04-13 18:03:12,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22220 states, 22219 states have (on average 4.688914892659436) internal successors, (104183), 22219 states have internal predecessors, (104183), 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 18:03:12,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22220 states to 22220 states and 104183 transitions. [2025-04-13 18:03:12,398 INFO L79 Accepts]: Start accepts. Automaton has 22220 states and 104183 transitions. Word has length 64 [2025-04-13 18:03:12,398 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:03:12,398 INFO L485 AbstractCegarLoop]: Abstraction has 22220 states and 104183 transitions. [2025-04-13 18:03:12,398 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:03:12,398 INFO L278 IsEmpty]: Start isEmpty. Operand 22220 states and 104183 transitions. [2025-04-13 18:03:12,442 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:03:12,442 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:03:12,442 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:03:12,442 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-04-13 18:03:12,442 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:03:12,442 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:03:12,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1871741029, now seen corresponding path program 12 times [2025-04-13 18:03:12,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:03:12,443 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200107166] [2025-04-13 18:03:12,443 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-13 18:03:12,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:03:12,447 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:03:12,450 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:03:12,450 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-04-13 18:03:12,450 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:03:12,711 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 18:03:12,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:03:12,711 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200107166] [2025-04-13 18:03:12,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200107166] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:03:12,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:03:12,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-04-13 18:03:12,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060468245] [2025-04-13 18:03:12,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:03:12,712 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-04-13 18:03:12,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:03:12,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-04-13 18:03:12,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2025-04-13 18:03:12,712 INFO L87 Difference]: Start difference. First operand 22220 states and 104183 transitions. Second operand has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:03:14,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:03:14,731 INFO L93 Difference]: Finished difference Result 28750 states and 135076 transitions. [2025-04-13 18:03:14,731 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-04-13 18:03:14,731 INFO L79 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 64 [2025-04-13 18:03:14,731 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:03:14,868 INFO L225 Difference]: With dead ends: 28750 [2025-04-13 18:03:14,868 INFO L226 Difference]: Without dead ends: 28278 [2025-04-13 18:03:14,881 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 566 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=251, Invalid=2299, Unknown=0, NotChecked=0, Total=2550 [2025-04-13 18:03:14,881 INFO L437 NwaCegarLoop]: 106 mSDtfsCounter, 548 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 4891 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 4904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 4891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-04-13 18:03:14,881 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 785 Invalid, 4904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 4891 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-04-13 18:03:14,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28278 states. [2025-04-13 18:03:15,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28278 to 22170. [2025-04-13 18:03:15,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22170 states, 22169 states have (on average 4.68843881095223) internal successors, (103938), 22169 states have internal predecessors, (103938), 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 18:03:15,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22170 states to 22170 states and 103938 transitions. [2025-04-13 18:03:15,800 INFO L79 Accepts]: Start accepts. Automaton has 22170 states and 103938 transitions. Word has length 64 [2025-04-13 18:03:15,801 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:03:15,801 INFO L485 AbstractCegarLoop]: Abstraction has 22170 states and 103938 transitions. [2025-04-13 18:03:15,801 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:03:15,801 INFO L278 IsEmpty]: Start isEmpty. Operand 22170 states and 103938 transitions. [2025-04-13 18:03:15,846 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:03:15,847 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:03:15,847 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:03:15,847 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-04-13 18:03:15,847 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:03:15,847 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:03:15,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1892773851, now seen corresponding path program 13 times [2025-04-13 18:03:15,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:03:15,847 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317199591] [2025-04-13 18:03:15,847 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-13 18:03:15,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:03:15,852 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:03:15,855 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:03:15,855 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 18:03:15,855 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:03:16,110 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 18:03:16,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:03:16,110 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317199591] [2025-04-13 18:03:16,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317199591] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:03:16,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:03:16,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-04-13 18:03:16,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79351510] [2025-04-13 18:03:16,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:03:16,110 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-13 18:03:16,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:03:16,111 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-13 18:03:16,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2025-04-13 18:03:16,111 INFO L87 Difference]: Start difference. First operand 22170 states and 103938 transitions. Second operand has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:03:18,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:03:18,610 INFO L93 Difference]: Finished difference Result 27264 states and 128128 transitions. [2025-04-13 18:03:18,610 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2025-04-13 18:03:18,611 INFO L79 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 64 [2025-04-13 18:03:18,611 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:03:18,751 INFO L225 Difference]: With dead ends: 27264 [2025-04-13 18:03:18,751 INFO L226 Difference]: Without dead ends: 26434 [2025-04-13 18:03:18,765 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=220, Invalid=2132, Unknown=0, NotChecked=0, Total=2352 [2025-04-13 18:03:18,766 INFO L437 NwaCegarLoop]: 80 mSDtfsCounter, 597 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 4658 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 4670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 4658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-04-13 18:03:18,766 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 820 Invalid, 4670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 4658 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-04-13 18:03:18,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26434 states. [2025-04-13 18:03:19,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26434 to 22586. [2025-04-13 18:03:19,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22586 states, 22585 states have (on average 4.6966570732787245) internal successors, (106074), 22585 states have internal predecessors, (106074), 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 18:03:19,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22586 states to 22586 states and 106074 transitions. [2025-04-13 18:03:19,589 INFO L79 Accepts]: Start accepts. Automaton has 22586 states and 106074 transitions. Word has length 64 [2025-04-13 18:03:19,590 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:03:19,590 INFO L485 AbstractCegarLoop]: Abstraction has 22586 states and 106074 transitions. [2025-04-13 18:03:19,590 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:03:19,590 INFO L278 IsEmpty]: Start isEmpty. Operand 22586 states and 106074 transitions. [2025-04-13 18:03:19,639 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:03:19,639 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:03:19,639 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:03:19,640 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-04-13 18:03:19,640 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:03:19,640 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:03:19,640 INFO L85 PathProgramCache]: Analyzing trace with hash -996638053, now seen corresponding path program 14 times [2025-04-13 18:03:19,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:03:19,640 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803715484] [2025-04-13 18:03:19,640 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 18:03:19,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:03:19,648 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:03:19,661 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:03:19,662 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 18:03:19,662 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:03:20,327 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 18:03:20,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:03:20,328 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803715484] [2025-04-13 18:03:20,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803715484] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:03:20,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:03:20,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-04-13 18:03:20,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371389817] [2025-04-13 18:03:20,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:03:20,331 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-04-13 18:03:20,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:03:20,332 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-04-13 18:03:20,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2025-04-13 18:03:20,332 INFO L87 Difference]: Start difference. First operand 22586 states and 106074 transitions. Second operand has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:03:22,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:03:22,922 INFO L93 Difference]: Finished difference Result 27566 states and 129333 transitions. [2025-04-13 18:03:22,922 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2025-04-13 18:03:22,922 INFO L79 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 64 [2025-04-13 18:03:22,922 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:03:23,060 INFO L225 Difference]: With dead ends: 27566 [2025-04-13 18:03:23,060 INFO L226 Difference]: Without dead ends: 26804 [2025-04-13 18:03:23,069 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=189, Invalid=1703, Unknown=0, NotChecked=0, Total=1892 [2025-04-13 18:03:23,073 INFO L437 NwaCegarLoop]: 99 mSDtfsCounter, 496 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 4403 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 4410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 4403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-04-13 18:03:23,073 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 729 Invalid, 4410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 4403 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-04-13 18:03:23,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26804 states. [2025-04-13 18:03:23,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26804 to 22486. [2025-04-13 18:03:23,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22486 states, 22485 states have (on average 4.696197464976651) internal successors, (105594), 22485 states have internal predecessors, (105594), 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 18:03:23,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22486 states to 22486 states and 105594 transitions. [2025-04-13 18:03:23,869 INFO L79 Accepts]: Start accepts. Automaton has 22486 states and 105594 transitions. Word has length 64 [2025-04-13 18:03:23,869 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:03:23,869 INFO L485 AbstractCegarLoop]: Abstraction has 22486 states and 105594 transitions. [2025-04-13 18:03:23,869 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:03:23,870 INFO L278 IsEmpty]: Start isEmpty. Operand 22486 states and 105594 transitions. [2025-04-13 18:03:23,918 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:03:23,918 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:03:23,918 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:03:23,918 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-04-13 18:03:23,919 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:03:23,919 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:03:23,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1199345507, now seen corresponding path program 15 times [2025-04-13 18:03:23,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:03:23,920 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617445052] [2025-04-13 18:03:23,920 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-13 18:03:23,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:03:23,930 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:03:23,937 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:03:23,938 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-13 18:03:23,938 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:03:24,620 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 18:03:24,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:03:24,620 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617445052] [2025-04-13 18:03:24,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617445052] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:03:24,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:03:24,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-04-13 18:03:24,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842674206] [2025-04-13 18:03:24,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:03:24,620 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-13 18:03:24,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:03:24,621 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-13 18:03:24,621 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2025-04-13 18:03:24,621 INFO L87 Difference]: Start difference. First operand 22486 states and 105594 transitions. Second operand has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:03:26,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:03:26,868 INFO L93 Difference]: Finished difference Result 26956 states and 126610 transitions. [2025-04-13 18:03:26,869 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-04-13 18:03:26,869 INFO L79 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 64 [2025-04-13 18:03:26,869 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:03:27,010 INFO L225 Difference]: With dead ends: 26956 [2025-04-13 18:03:27,010 INFO L226 Difference]: Without dead ends: 26294 [2025-04-13 18:03:27,026 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=184, Invalid=1708, Unknown=0, NotChecked=0, Total=1892 [2025-04-13 18:03:27,027 INFO L437 NwaCegarLoop]: 76 mSDtfsCounter, 528 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 4257 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 4263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-04-13 18:03:27,027 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 780 Invalid, 4263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4257 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-04-13 18:03:27,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26294 states. [2025-04-13 18:03:27,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26294 to 22854. [2025-04-13 18:03:27,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22854 states, 22853 states have (on average 4.690412637290509) internal successors, (107190), 22853 states have internal predecessors, (107190), 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 18:03:27,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22854 states to 22854 states and 107190 transitions. [2025-04-13 18:03:28,005 INFO L79 Accepts]: Start accepts. Automaton has 22854 states and 107190 transitions. Word has length 64 [2025-04-13 18:03:28,006 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:03:28,006 INFO L485 AbstractCegarLoop]: Abstraction has 22854 states and 107190 transitions. [2025-04-13 18:03:28,006 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:03:28,012 INFO L278 IsEmpty]: Start isEmpty. Operand 22854 states and 107190 transitions. [2025-04-13 18:03:28,117 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:03:28,117 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:03:28,117 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:03:28,118 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-04-13 18:03:28,118 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:03:28,118 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:03:28,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1205942467, now seen corresponding path program 16 times [2025-04-13 18:03:28,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:03:28,118 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351989002] [2025-04-13 18:03:28,118 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-13 18:03:28,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:03:28,128 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 64 statements into 2 equivalence classes. [2025-04-13 18:03:28,138 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:03:28,138 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-13 18:03:28,138 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:03:28,818 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 18:03:28,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:03:28,818 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351989002] [2025-04-13 18:03:28,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351989002] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:03:28,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:03:28,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-04-13 18:03:28,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796510790] [2025-04-13 18:03:28,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:03:28,819 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-04-13 18:03:28,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:03:28,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-04-13 18:03:28,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2025-04-13 18:03:28,819 INFO L87 Difference]: Start difference. First operand 22854 states and 107190 transitions. Second operand has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:03:30,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:03:30,879 INFO L93 Difference]: Finished difference Result 28452 states and 133160 transitions. [2025-04-13 18:03:30,879 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2025-04-13 18:03:30,879 INFO L79 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 64 [2025-04-13 18:03:30,879 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:03:31,008 INFO L225 Difference]: With dead ends: 28452 [2025-04-13 18:03:31,009 INFO L226 Difference]: Without dead ends: 28025 [2025-04-13 18:03:31,023 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=218, Invalid=1944, Unknown=0, NotChecked=0, Total=2162 [2025-04-13 18:03:31,024 INFO L437 NwaCegarLoop]: 86 mSDtfsCounter, 560 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 4142 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 4152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 4142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-04-13 18:03:31,024 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [560 Valid, 641 Invalid, 4152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 4142 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-04-13 18:03:31,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28025 states. [2025-04-13 18:03:31,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28025 to 22964. [2025-04-13 18:03:31,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22964 states, 22963 states have (on average 4.688281147933632) internal successors, (107657), 22963 states have internal predecessors, (107657), 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 18:03:31,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22964 states to 22964 states and 107657 transitions. [2025-04-13 18:03:32,008 INFO L79 Accepts]: Start accepts. Automaton has 22964 states and 107657 transitions. Word has length 64 [2025-04-13 18:03:32,008 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:03:32,008 INFO L485 AbstractCegarLoop]: Abstraction has 22964 states and 107657 transitions. [2025-04-13 18:03:32,009 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:03:32,009 INFO L278 IsEmpty]: Start isEmpty. Operand 22964 states and 107657 transitions. [2025-04-13 18:03:32,069 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:03:32,069 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:03:32,070 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:03:32,070 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-04-13 18:03:32,070 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:03:32,071 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:03:32,071 INFO L85 PathProgramCache]: Analyzing trace with hash -359079931, now seen corresponding path program 17 times [2025-04-13 18:03:32,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:03:32,071 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203752622] [2025-04-13 18:03:32,072 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-13 18:03:32,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:03:32,079 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:03:32,083 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:03:32,083 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 18:03:32,083 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:03:32,458 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 18:03:32,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:03:32,458 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203752622] [2025-04-13 18:03:32,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203752622] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:03:32,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:03:32,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-04-13 18:03:32,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508028612] [2025-04-13 18:03:32,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:03:32,459 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-13 18:03:32,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:03:32,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-13 18:03:32,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2025-04-13 18:03:32,459 INFO L87 Difference]: Start difference. First operand 22964 states and 107657 transitions. Second operand has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:03:34,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:03:34,758 INFO L93 Difference]: Finished difference Result 27272 states and 127695 transitions. [2025-04-13 18:03:34,758 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2025-04-13 18:03:34,758 INFO L79 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 64 [2025-04-13 18:03:34,758 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:03:34,898 INFO L225 Difference]: With dead ends: 27272 [2025-04-13 18:03:34,899 INFO L226 Difference]: Without dead ends: 26850 [2025-04-13 18:03:34,908 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=194, Invalid=1786, Unknown=0, NotChecked=0, Total=1980 [2025-04-13 18:03:34,910 INFO L437 NwaCegarLoop]: 75 mSDtfsCounter, 598 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 4215 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 4221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-04-13 18:03:34,910 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [598 Valid, 760 Invalid, 4221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4215 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-04-13 18:03:34,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26850 states. [2025-04-13 18:03:35,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26850 to 23012. [2025-04-13 18:03:35,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23012 states, 23011 states have (on average 4.686150102125071) internal successors, (107833), 23011 states have internal predecessors, (107833), 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 18:03:35,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23012 states to 23012 states and 107833 transitions. [2025-04-13 18:03:35,610 INFO L79 Accepts]: Start accepts. Automaton has 23012 states and 107833 transitions. Word has length 64 [2025-04-13 18:03:35,610 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:03:35,610 INFO L485 AbstractCegarLoop]: Abstraction has 23012 states and 107833 transitions. [2025-04-13 18:03:35,611 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:03:35,611 INFO L278 IsEmpty]: Start isEmpty. Operand 23012 states and 107833 transitions. [2025-04-13 18:03:35,656 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:03:35,657 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:03:35,657 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:03:35,657 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-04-13 18:03:35,657 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:03:35,657 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:03:35,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1244745923, now seen corresponding path program 18 times [2025-04-13 18:03:35,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:03:35,658 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522685251] [2025-04-13 18:03:35,658 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-13 18:03:35,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:03:35,664 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:03:35,666 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:03:35,666 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-04-13 18:03:35,666 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:03:36,051 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 18:03:36,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:03:36,051 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522685251] [2025-04-13 18:03:36,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522685251] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:03:36,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:03:36,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-04-13 18:03:36,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659952312] [2025-04-13 18:03:36,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:03:36,052 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-04-13 18:03:36,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:03:36,052 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-04-13 18:03:36,052 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2025-04-13 18:03:36,053 INFO L87 Difference]: Start difference. First operand 23012 states and 107833 transitions. Second operand has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:03:38,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:03:38,345 INFO L93 Difference]: Finished difference Result 28495 states and 133270 transitions. [2025-04-13 18:03:38,345 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2025-04-13 18:03:38,345 INFO L79 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 64 [2025-04-13 18:03:38,345 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:03:38,475 INFO L225 Difference]: With dead ends: 28495 [2025-04-13 18:03:38,475 INFO L226 Difference]: Without dead ends: 28023 [2025-04-13 18:03:38,486 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=228, Invalid=2028, Unknown=0, NotChecked=0, Total=2256 [2025-04-13 18:03:38,490 INFO L437 NwaCegarLoop]: 87 mSDtfsCounter, 573 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 4139 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 4149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 4139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-04-13 18:03:38,490 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 639 Invalid, 4149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 4139 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-04-13 18:03:38,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28023 states. [2025-04-13 18:03:39,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28023 to 22962. [2025-04-13 18:03:39,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22962 states, 22961 states have (on average 4.686990984713209) internal successors, (107618), 22961 states have internal predecessors, (107618), 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 18:03:39,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22962 states to 22962 states and 107618 transitions. [2025-04-13 18:03:39,156 INFO L79 Accepts]: Start accepts. Automaton has 22962 states and 107618 transitions. Word has length 64 [2025-04-13 18:03:39,157 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:03:39,157 INFO L485 AbstractCegarLoop]: Abstraction has 22962 states and 107618 transitions. [2025-04-13 18:03:39,158 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:03:39,159 INFO L278 IsEmpty]: Start isEmpty. Operand 22962 states and 107618 transitions. [2025-04-13 18:03:39,224 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:03:39,224 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:03:39,224 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:03:39,224 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-04-13 18:03:39,224 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:03:39,225 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:03:39,225 INFO L85 PathProgramCache]: Analyzing trace with hash 145176419, now seen corresponding path program 19 times [2025-04-13 18:03:39,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:03:39,225 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613565441] [2025-04-13 18:03:39,225 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-13 18:03:39,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:03:39,235 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:03:39,239 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:03:39,239 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 18:03:39,239 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:03:39,840 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 18:03:39,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:03:39,841 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613565441] [2025-04-13 18:03:39,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613565441] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:03:39,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:03:39,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-04-13 18:03:39,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85778430] [2025-04-13 18:03:39,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:03:39,842 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-13 18:03:39,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:03:39,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-13 18:03:39,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2025-04-13 18:03:39,842 INFO L87 Difference]: Start difference. First operand 22962 states and 107618 transitions. Second operand has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:03:42,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:03:42,066 INFO L93 Difference]: Finished difference Result 27612 states and 129215 transitions. [2025-04-13 18:03:42,066 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2025-04-13 18:03:42,066 INFO L79 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 64 [2025-04-13 18:03:42,066 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:03:42,190 INFO L225 Difference]: With dead ends: 27612 [2025-04-13 18:03:42,190 INFO L226 Difference]: Without dead ends: 27070 [2025-04-13 18:03:42,202 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=195, Invalid=1875, Unknown=0, NotChecked=0, Total=2070 [2025-04-13 18:03:42,203 INFO L437 NwaCegarLoop]: 78 mSDtfsCounter, 576 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 4612 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 802 SdHoareTripleChecker+Invalid, 4620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 4612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-04-13 18:03:42,203 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 802 Invalid, 4620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 4612 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-04-13 18:03:42,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27070 states. [2025-04-13 18:03:42,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27070 to 23002. [2025-04-13 18:03:42,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23002 states, 23001 states have (on average 4.687883135515847) internal successors, (107826), 23001 states have internal predecessors, (107826), 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 18:03:43,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23002 states to 23002 states and 107826 transitions. [2025-04-13 18:03:43,057 INFO L79 Accepts]: Start accepts. Automaton has 23002 states and 107826 transitions. Word has length 64 [2025-04-13 18:03:43,058 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:03:43,058 INFO L485 AbstractCegarLoop]: Abstraction has 23002 states and 107826 transitions. [2025-04-13 18:03:43,058 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:03:43,058 INFO L278 IsEmpty]: Start isEmpty. Operand 23002 states and 107826 transitions. [2025-04-13 18:03:43,114 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:03:43,114 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:03:43,115 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:03:43,115 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-04-13 18:03:43,115 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:03:43,116 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:03:43,116 INFO L85 PathProgramCache]: Analyzing trace with hash -296337509, now seen corresponding path program 20 times [2025-04-13 18:03:43,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:03:43,116 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572857635] [2025-04-13 18:03:43,116 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 18:03:43,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:03:43,129 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:03:43,413 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:03:43,413 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 18:03:43,413 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:03:43,682 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 18:03:43,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:03:43,682 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572857635] [2025-04-13 18:03:43,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572857635] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:03:43,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:03:43,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-04-13 18:03:43,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555532781] [2025-04-13 18:03:43,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:03:43,682 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-04-13 18:03:43,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:03:43,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-04-13 18:03:43,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2025-04-13 18:03:43,683 INFO L87 Difference]: Start difference. First operand 23002 states and 107826 transitions. Second operand has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:03:45,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:03:45,349 INFO L93 Difference]: Finished difference Result 26887 states and 125621 transitions. [2025-04-13 18:03:45,349 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-04-13 18:03:45,350 INFO L79 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 64 [2025-04-13 18:03:45,350 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:03:45,469 INFO L225 Difference]: With dead ends: 26887 [2025-04-13 18:03:45,469 INFO L226 Difference]: Without dead ends: 26460 [2025-04-13 18:03:45,480 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=180, Invalid=1542, Unknown=0, NotChecked=0, Total=1722 [2025-04-13 18:03:45,480 INFO L437 NwaCegarLoop]: 73 mSDtfsCounter, 478 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 3836 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 3840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-04-13 18:03:45,480 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 553 Invalid, 3840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3836 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-04-13 18:03:45,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26460 states. [2025-04-13 18:03:45,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26460 to 23042. [2025-04-13 18:03:45,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23042 states, 23041 states have (on average 4.686168135063582) internal successors, (107974), 23041 states have internal predecessors, (107974), 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 18:03:46,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23042 states to 23042 states and 107974 transitions. [2025-04-13 18:03:46,067 INFO L79 Accepts]: Start accepts. Automaton has 23042 states and 107974 transitions. Word has length 64 [2025-04-13 18:03:46,068 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:03:46,068 INFO L485 AbstractCegarLoop]: Abstraction has 23042 states and 107974 transitions. [2025-04-13 18:03:46,068 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:03:46,068 INFO L278 IsEmpty]: Start isEmpty. Operand 23042 states and 107974 transitions. [2025-04-13 18:03:46,111 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:03:46,111 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:03:46,111 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:03:46,111 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-04-13 18:03:46,111 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:03:46,112 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:03:46,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1687777351, now seen corresponding path program 21 times [2025-04-13 18:03:46,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:03:46,112 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441091617] [2025-04-13 18:03:46,112 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-13 18:03:46,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:03:46,116 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:03:46,119 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:03:46,119 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-13 18:03:46,119 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:03:46,486 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 18:03:46,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:03:46,486 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441091617] [2025-04-13 18:03:46,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441091617] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:03:46,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:03:46,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-04-13 18:03:46,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337862325] [2025-04-13 18:03:46,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:03:46,487 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-13 18:03:46,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:03:46,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-13 18:03:46,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2025-04-13 18:03:46,487 INFO L87 Difference]: Start difference. First operand 23042 states and 107974 transitions. Second operand has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:03:48,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:03:48,339 INFO L93 Difference]: Finished difference Result 27046 states and 126608 transitions. [2025-04-13 18:03:48,339 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2025-04-13 18:03:48,339 INFO L79 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 64 [2025-04-13 18:03:48,339 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:03:48,476 INFO L225 Difference]: With dead ends: 27046 [2025-04-13 18:03:48,476 INFO L226 Difference]: Without dead ends: 26624 [2025-04-13 18:03:48,487 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=202, Invalid=1868, Unknown=0, NotChecked=0, Total=2070 [2025-04-13 18:03:48,488 INFO L437 NwaCegarLoop]: 74 mSDtfsCounter, 562 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 4215 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 4221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-04-13 18:03:48,488 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 749 Invalid, 4221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4215 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-04-13 18:03:48,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26624 states. [2025-04-13 18:03:48,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26624 to 23138. [2025-04-13 18:03:49,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23138 states, 23137 states have (on average 4.681938021351082) internal successors, (108326), 23137 states have internal predecessors, (108326), 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 18:03:49,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23138 states to 23138 states and 108326 transitions. [2025-04-13 18:03:49,141 INFO L79 Accepts]: Start accepts. Automaton has 23138 states and 108326 transitions. Word has length 64 [2025-04-13 18:03:49,142 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:03:49,142 INFO L485 AbstractCegarLoop]: Abstraction has 23138 states and 108326 transitions. [2025-04-13 18:03:49,142 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:03:49,142 INFO L278 IsEmpty]: Start isEmpty. Operand 23138 states and 108326 transitions. [2025-04-13 18:03:49,374 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:03:49,375 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:03:49,375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:03:49,375 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-04-13 18:03:49,375 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:03:49,375 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:03:49,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1188537371, now seen corresponding path program 22 times [2025-04-13 18:03:49,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:03:49,375 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861059092] [2025-04-13 18:03:49,375 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-13 18:03:49,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:03:49,385 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 64 statements into 2 equivalence classes. [2025-04-13 18:03:49,409 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:03:49,409 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-13 18:03:49,409 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:03:49,676 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 18:03:49,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:03:49,676 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861059092] [2025-04-13 18:03:49,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861059092] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:03:49,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:03:49,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-04-13 18:03:49,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923332703] [2025-04-13 18:03:49,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:03:49,677 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-04-13 18:03:49,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:03:49,677 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-04-13 18:03:49,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2025-04-13 18:03:49,677 INFO L87 Difference]: Start difference. First operand 23138 states and 108326 transitions. Second operand has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:03:51,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:03:51,303 INFO L93 Difference]: Finished difference Result 27609 states and 128964 transitions. [2025-04-13 18:03:51,303 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2025-04-13 18:03:51,304 INFO L79 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 64 [2025-04-13 18:03:51,304 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:03:51,415 INFO L225 Difference]: With dead ends: 27609 [2025-04-13 18:03:51,415 INFO L226 Difference]: Without dead ends: 27171 [2025-04-13 18:03:51,427 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=215, Invalid=1855, Unknown=0, NotChecked=0, Total=2070 [2025-04-13 18:03:51,429 INFO L437 NwaCegarLoop]: 76 mSDtfsCounter, 528 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 4140 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 4148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 4140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-04-13 18:03:51,429 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 581 Invalid, 4148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 4140 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-04-13 18:03:51,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27171 states. [2025-04-13 18:03:51,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27171 to 23238. [2025-04-13 18:03:51,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23238 states, 23237 states have (on average 4.683306795197314) internal successors, (108826), 23237 states have internal predecessors, (108826), 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 18:03:51,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23238 states to 23238 states and 108826 transitions. [2025-04-13 18:03:51,966 INFO L79 Accepts]: Start accepts. Automaton has 23238 states and 108826 transitions. Word has length 64 [2025-04-13 18:03:51,967 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:03:51,967 INFO L485 AbstractCegarLoop]: Abstraction has 23238 states and 108826 transitions. [2025-04-13 18:03:51,967 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:03:51,967 INFO L278 IsEmpty]: Start isEmpty. Operand 23238 states and 108826 transitions. [2025-04-13 18:03:52,010 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:03:52,011 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:03:52,011 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:03:52,011 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-04-13 18:03:52,011 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:03:52,011 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:03:52,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1183521001, now seen corresponding path program 23 times [2025-04-13 18:03:52,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:03:52,011 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567067384] [2025-04-13 18:03:52,011 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-13 18:03:52,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:03:52,015 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:03:52,018 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:03:52,018 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 18:03:52,018 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:03:52,360 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 18:03:52,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:03:52,360 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567067384] [2025-04-13 18:03:52,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567067384] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:03:52,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:03:52,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-04-13 18:03:52,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354731591] [2025-04-13 18:03:52,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:03:52,360 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-13 18:03:52,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:03:52,361 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-13 18:03:52,361 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2025-04-13 18:03:52,361 INFO L87 Difference]: Start difference. First operand 23238 states and 108826 transitions. Second operand has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:03:54,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:03:54,150 INFO L93 Difference]: Finished difference Result 26874 states and 126133 transitions. [2025-04-13 18:03:54,151 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2025-04-13 18:03:54,151 INFO L79 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 64 [2025-04-13 18:03:54,151 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:03:54,272 INFO L225 Difference]: With dead ends: 26874 [2025-04-13 18:03:54,272 INFO L226 Difference]: Without dead ends: 26188 [2025-04-13 18:03:54,283 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 386 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=206, Invalid=1956, Unknown=0, NotChecked=0, Total=2162 [2025-04-13 18:03:54,283 INFO L437 NwaCegarLoop]: 79 mSDtfsCounter, 576 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 4426 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 793 SdHoareTripleChecker+Invalid, 4433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 4426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-04-13 18:03:54,283 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 793 Invalid, 4433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 4426 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-04-13 18:03:54,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26188 states. [2025-04-13 18:03:54,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26188 to 22950. [2025-04-13 18:03:54,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22950 states, 22949 states have (on average 4.690487602945662) internal successors, (107642), 22949 states have internal predecessors, (107642), 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 18:03:54,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22950 states to 22950 states and 107642 transitions. [2025-04-13 18:03:54,822 INFO L79 Accepts]: Start accepts. Automaton has 22950 states and 107642 transitions. Word has length 64 [2025-04-13 18:03:54,823 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:03:54,823 INFO L485 AbstractCegarLoop]: Abstraction has 22950 states and 107642 transitions. [2025-04-13 18:03:54,823 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:03:54,823 INFO L278 IsEmpty]: Start isEmpty. Operand 22950 states and 107642 transitions. [2025-04-13 18:03:54,867 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:03:54,867 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:03:54,867 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:03:54,867 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-04-13 18:03:54,868 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:03:54,868 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:03:54,868 INFO L85 PathProgramCache]: Analyzing trace with hash -581834759, now seen corresponding path program 24 times [2025-04-13 18:03:54,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:03:54,868 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45673317] [2025-04-13 18:03:54,868 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-13 18:03:54,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:03:54,872 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:03:54,875 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:03:54,875 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-04-13 18:03:54,875 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:03:55,064 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 18:03:55,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:03:55,064 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45673317] [2025-04-13 18:03:55,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45673317] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:03:55,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:03:55,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-04-13 18:03:55,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320616151] [2025-04-13 18:03:55,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:03:55,065 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-04-13 18:03:55,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:03:55,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-04-13 18:03:55,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2025-04-13 18:03:55,066 INFO L87 Difference]: Start difference. First operand 22950 states and 107642 transitions. Second operand has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:03:56,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:03:56,448 INFO L93 Difference]: Finished difference Result 26632 states and 124719 transitions. [2025-04-13 18:03:56,448 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2025-04-13 18:03:56,448 INFO L79 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 64 [2025-04-13 18:03:56,448 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:03:56,563 INFO L225 Difference]: With dead ends: 26632 [2025-04-13 18:03:56,563 INFO L226 Difference]: Without dead ends: 26046 [2025-04-13 18:03:56,574 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=189, Invalid=1617, Unknown=0, NotChecked=0, Total=1806 [2025-04-13 18:03:56,574 INFO L437 NwaCegarLoop]: 74 mSDtfsCounter, 553 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 3822 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 3828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 3822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-04-13 18:03:56,574 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 544 Invalid, 3828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 3822 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-04-13 18:03:56,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26046 states. [2025-04-13 18:03:57,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26046 to 22930. [2025-04-13 18:03:57,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22930 states, 22929 states have (on average 4.690915434602468) internal successors, (107558), 22929 states have internal predecessors, (107558), 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 18:03:57,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22930 states to 22930 states and 107558 transitions. [2025-04-13 18:03:57,461 INFO L79 Accepts]: Start accepts. Automaton has 22930 states and 107558 transitions. Word has length 64 [2025-04-13 18:03:57,461 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:03:57,461 INFO L485 AbstractCegarLoop]: Abstraction has 22930 states and 107558 transitions. [2025-04-13 18:03:57,461 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:03:57,461 INFO L278 IsEmpty]: Start isEmpty. Operand 22930 states and 107558 transitions. [2025-04-13 18:03:57,508 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:03:57,508 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:03:57,508 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:03:57,508 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-04-13 18:03:57,508 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:03:57,509 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:03:57,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1459407459, now seen corresponding path program 25 times [2025-04-13 18:03:57,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:03:57,509 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423275443] [2025-04-13 18:03:57,509 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-13 18:03:57,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:03:57,513 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:03:57,516 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:03:57,516 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 18:03:57,516 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:03:57,714 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 18:03:57,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:03:57,714 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423275443] [2025-04-13 18:03:57,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423275443] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:03:57,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:03:57,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-04-13 18:03:57,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375419483] [2025-04-13 18:03:57,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:03:57,715 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-13 18:03:57,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:03:57,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-13 18:03:57,715 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2025-04-13 18:03:57,715 INFO L87 Difference]: Start difference. First operand 22930 states and 107558 transitions. Second operand has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:03:59,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:03:59,604 INFO L93 Difference]: Finished difference Result 29195 states and 137080 transitions. [2025-04-13 18:03:59,604 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2025-04-13 18:03:59,604 INFO L79 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 64 [2025-04-13 18:03:59,604 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:03:59,879 INFO L225 Difference]: With dead ends: 29195 [2025-04-13 18:03:59,879 INFO L226 Difference]: Without dead ends: 28768 [2025-04-13 18:03:59,886 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 630 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=276, Invalid=2694, Unknown=0, NotChecked=0, Total=2970 [2025-04-13 18:03:59,886 INFO L437 NwaCegarLoop]: 89 mSDtfsCounter, 562 mSDsluCounter, 845 mSDsCounter, 0 mSdLazyCounter, 5323 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 5336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 5323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-04-13 18:03:59,886 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 934 Invalid, 5336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 5323 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-04-13 18:03:59,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28768 states. [2025-04-13 18:04:00,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28768 to 23296. [2025-04-13 18:04:00,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23296 states, 23295 states have (on average 4.694183301137583) internal successors, (109351), 23295 states have internal predecessors, (109351), 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 18:04:00,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23296 states to 23296 states and 109351 transitions. [2025-04-13 18:04:00,409 INFO L79 Accepts]: Start accepts. Automaton has 23296 states and 109351 transitions. Word has length 64 [2025-04-13 18:04:00,409 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:04:00,409 INFO L485 AbstractCegarLoop]: Abstraction has 23296 states and 109351 transitions. [2025-04-13 18:04:00,409 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:04:00,409 INFO L278 IsEmpty]: Start isEmpty. Operand 23296 states and 109351 transitions. [2025-04-13 18:04:00,610 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:04:00,610 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:04:00,610 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:04:00,610 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-04-13 18:04:00,610 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:04:00,610 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:04:00,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1494532389, now seen corresponding path program 26 times [2025-04-13 18:04:00,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:04:00,611 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772140823] [2025-04-13 18:04:00,611 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 18:04:00,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:04:00,614 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:04:00,617 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:04:00,617 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 18:04:00,617 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:04:00,827 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 18:04:00,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:04:00,828 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772140823] [2025-04-13 18:04:00,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772140823] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:04:00,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:04:00,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-04-13 18:04:00,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303566495] [2025-04-13 18:04:00,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:04:00,828 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-04-13 18:04:00,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:04:00,829 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-04-13 18:04:00,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2025-04-13 18:04:00,829 INFO L87 Difference]: Start difference. First operand 23296 states and 109351 transitions. Second operand has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:04:02,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:04:02,103 INFO L93 Difference]: Finished difference Result 26436 states and 124266 transitions. [2025-04-13 18:04:02,103 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-04-13 18:04:02,103 INFO L79 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 64 [2025-04-13 18:04:02,103 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:04:02,214 INFO L225 Difference]: With dead ends: 26436 [2025-04-13 18:04:02,214 INFO L226 Difference]: Without dead ends: 25774 [2025-04-13 18:04:02,225 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=160, Invalid=1400, Unknown=0, NotChecked=0, Total=1560 [2025-04-13 18:04:02,225 INFO L437 NwaCegarLoop]: 77 mSDtfsCounter, 463 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 3685 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 3690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-04-13 18:04:02,226 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 556 Invalid, 3690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3685 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-04-13 18:04:02,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25774 states. [2025-04-13 18:04:02,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25774 to 23392. [2025-04-13 18:04:02,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23392 states, 23391 states have (on average 4.689966226326365) internal successors, (109703), 23391 states have internal predecessors, (109703), 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 18:04:02,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23392 states to 23392 states and 109703 transitions. [2025-04-13 18:04:02,856 INFO L79 Accepts]: Start accepts. Automaton has 23392 states and 109703 transitions. Word has length 64 [2025-04-13 18:04:02,857 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:04:02,857 INFO L485 AbstractCegarLoop]: Abstraction has 23392 states and 109703 transitions. [2025-04-13 18:04:02,857 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:04:02,857 INFO L278 IsEmpty]: Start isEmpty. Operand 23392 states and 109703 transitions. [2025-04-13 18:04:02,900 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:04:02,900 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:04:02,901 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:04:02,901 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-04-13 18:04:02,901 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:04:02,901 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:04:02,901 INFO L85 PathProgramCache]: Analyzing trace with hash 971332097, now seen corresponding path program 27 times [2025-04-13 18:04:02,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:04:02,901 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380050411] [2025-04-13 18:04:02,901 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-13 18:04:02,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:04:02,905 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:04:02,908 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:04:02,908 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-13 18:04:02,908 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:04:03,116 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 18:04:03,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:04:03,117 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380050411] [2025-04-13 18:04:03,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380050411] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:04:03,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:04:03,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-04-13 18:04:03,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004109005] [2025-04-13 18:04:03,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:04:03,117 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-13 18:04:03,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:04:03,117 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-13 18:04:03,117 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2025-04-13 18:04:03,117 INFO L87 Difference]: Start difference. First operand 23392 states and 109703 transitions. Second operand has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:04:05,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:04:05,070 INFO L93 Difference]: Finished difference Result 29574 states and 138710 transitions. [2025-04-13 18:04:05,071 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-04-13 18:04:05,071 INFO L79 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 64 [2025-04-13 18:04:05,071 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:04:05,189 INFO L225 Difference]: With dead ends: 29574 [2025-04-13 18:04:05,189 INFO L226 Difference]: Without dead ends: 29102 [2025-04-13 18:04:05,202 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 700 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=293, Invalid=2899, Unknown=0, NotChecked=0, Total=3192 [2025-04-13 18:04:05,202 INFO L437 NwaCegarLoop]: 91 mSDtfsCounter, 578 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 5270 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 5283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 5270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-04-13 18:04:05,202 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 946 Invalid, 5283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 5270 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-04-13 18:04:05,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29102 states. [2025-04-13 18:04:05,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29102 to 23342. [2025-04-13 18:04:05,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23342 states, 23341 states have (on average 4.689516301786556) internal successors, (109458), 23341 states have internal predecessors, (109458), 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 18:04:05,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23342 states to 23342 states and 109458 transitions. [2025-04-13 18:04:05,876 INFO L79 Accepts]: Start accepts. Automaton has 23342 states and 109458 transitions. Word has length 64 [2025-04-13 18:04:05,876 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:04:05,876 INFO L485 AbstractCegarLoop]: Abstraction has 23342 states and 109458 transitions. [2025-04-13 18:04:05,876 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:04:05,876 INFO L278 IsEmpty]: Start isEmpty. Operand 23342 states and 109458 transitions. [2025-04-13 18:04:05,919 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:04:05,919 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:04:05,919 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:04:05,919 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-04-13 18:04:05,919 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:04:05,920 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:04:05,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1256188605, now seen corresponding path program 28 times [2025-04-13 18:04:05,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:04:05,920 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200275216] [2025-04-13 18:04:05,920 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-13 18:04:05,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:04:05,925 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 64 statements into 2 equivalence classes. [2025-04-13 18:04:05,929 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:04:05,929 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-13 18:04:05,929 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:04:06,171 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 18:04:06,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:04:06,172 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200275216] [2025-04-13 18:04:06,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200275216] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:04:06,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:04:06,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-04-13 18:04:06,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909543900] [2025-04-13 18:04:06,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:04:06,172 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-04-13 18:04:06,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:04:06,172 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-04-13 18:04:06,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2025-04-13 18:04:06,172 INFO L87 Difference]: Start difference. First operand 23342 states and 109458 transitions. Second operand has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:04:07,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:04:07,713 INFO L93 Difference]: Finished difference Result 26290 states and 123501 transitions. [2025-04-13 18:04:07,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-04-13 18:04:07,713 INFO L79 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 64 [2025-04-13 18:04:07,713 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:04:07,842 INFO L225 Difference]: With dead ends: 26290 [2025-04-13 18:04:07,843 INFO L226 Difference]: Without dead ends: 25588 [2025-04-13 18:04:07,857 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=174, Invalid=1548, Unknown=0, NotChecked=0, Total=1722 [2025-04-13 18:04:07,857 INFO L437 NwaCegarLoop]: 75 mSDtfsCounter, 538 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 3769 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 3775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 3769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-04-13 18:04:07,857 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [538 Valid, 544 Invalid, 3775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 3769 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-04-13 18:04:07,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25588 states. [2025-04-13 18:04:08,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25588 to 23206. [2025-04-13 18:04:08,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23206 states, 23205 states have (on average 4.693729799612153) internal successors, (108918), 23205 states have internal predecessors, (108918), 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 18:04:08,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23206 states to 23206 states and 108918 transitions. [2025-04-13 18:04:08,661 INFO L79 Accepts]: Start accepts. Automaton has 23206 states and 108918 transitions. Word has length 64 [2025-04-13 18:04:08,661 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:04:08,661 INFO L485 AbstractCegarLoop]: Abstraction has 23206 states and 108918 transitions. [2025-04-13 18:04:08,661 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:04:08,661 INFO L278 IsEmpty]: Start isEmpty. Operand 23206 states and 108918 transitions. [2025-04-13 18:04:08,710 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:04:08,710 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:04:08,711 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:04:08,711 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2025-04-13 18:04:08,711 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:04:08,711 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:04:08,711 INFO L85 PathProgramCache]: Analyzing trace with hash 689066443, now seen corresponding path program 29 times [2025-04-13 18:04:08,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:04:08,711 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546945613] [2025-04-13 18:04:08,711 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-13 18:04:08,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:04:08,715 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:04:08,718 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:04:08,718 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 18:04:08,718 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:04:08,932 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 18:04:08,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:04:08,932 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546945613] [2025-04-13 18:04:08,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546945613] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:04:08,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:04:08,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-04-13 18:04:08,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240135411] [2025-04-13 18:04:08,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:04:08,933 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-13 18:04:08,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:04:08,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-13 18:04:08,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2025-04-13 18:04:08,933 INFO L87 Difference]: Start difference. First operand 23206 states and 108918 transitions. Second operand has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:04:11,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:04:11,288 INFO L93 Difference]: Finished difference Result 28542 states and 134043 transitions. [2025-04-13 18:04:11,288 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-04-13 18:04:11,289 INFO L79 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 64 [2025-04-13 18:04:11,289 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:04:11,436 INFO L225 Difference]: With dead ends: 28542 [2025-04-13 18:04:11,436 INFO L226 Difference]: Without dead ends: 27780 [2025-04-13 18:04:11,451 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=227, Invalid=2223, Unknown=0, NotChecked=0, Total=2450 [2025-04-13 18:04:11,451 INFO L437 NwaCegarLoop]: 93 mSDtfsCounter, 544 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 4926 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 4937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 4926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-04-13 18:04:11,452 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 954 Invalid, 4937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 4926 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-04-13 18:04:11,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27780 states. [2025-04-13 18:04:12,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27780 to 22890. [2025-04-13 18:04:12,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22890 states, 22889 states have (on average 4.689151994407794) internal successors, (107330), 22889 states have internal predecessors, (107330), 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 18:04:12,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22890 states to 22890 states and 107330 transitions. [2025-04-13 18:04:12,275 INFO L79 Accepts]: Start accepts. Automaton has 22890 states and 107330 transitions. Word has length 64 [2025-04-13 18:04:12,275 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:04:12,275 INFO L485 AbstractCegarLoop]: Abstraction has 22890 states and 107330 transitions. [2025-04-13 18:04:12,276 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:04:12,276 INFO L278 IsEmpty]: Start isEmpty. Operand 22890 states and 107330 transitions. [2025-04-13 18:04:12,326 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:04:12,326 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:04:12,326 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:04:12,326 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2025-04-13 18:04:12,326 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:04:12,326 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:04:12,326 INFO L85 PathProgramCache]: Analyzing trace with hash -429556495, now seen corresponding path program 30 times [2025-04-13 18:04:12,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:04:12,327 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545749702] [2025-04-13 18:04:12,327 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-13 18:04:12,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:04:12,334 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:04:12,338 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:04:12,338 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-04-13 18:04:12,338 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:04:12,816 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 18:04:12,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:04:12,816 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545749702] [2025-04-13 18:04:12,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545749702] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:04:12,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:04:12,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-04-13 18:04:12,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318686737] [2025-04-13 18:04:12,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:04:12,817 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-04-13 18:04:12,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:04:12,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-04-13 18:04:12,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2025-04-13 18:04:12,818 INFO L87 Difference]: Start difference. First operand 22890 states and 107330 transitions. Second operand has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:04:15,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:04:15,072 INFO L93 Difference]: Finished difference Result 29544 states and 139361 transitions. [2025-04-13 18:04:15,072 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2025-04-13 18:04:15,072 INFO L79 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 64 [2025-04-13 18:04:15,072 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:04:15,227 INFO L225 Difference]: With dead ends: 29544 [2025-04-13 18:04:15,227 INFO L226 Difference]: Without dead ends: 29117 [2025-04-13 18:04:15,238 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=210, Invalid=1860, Unknown=0, NotChecked=0, Total=2070 [2025-04-13 18:04:15,241 INFO L437 NwaCegarLoop]: 96 mSDtfsCounter, 537 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 4487 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 4498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 4487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-04-13 18:04:15,241 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 751 Invalid, 4498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 4487 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-04-13 18:04:15,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29117 states. [2025-04-13 18:04:15,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29117 to 22980. [2025-04-13 18:04:15,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22980 states, 22979 states have (on average 4.688324122024457) internal successors, (107733), 22979 states have internal predecessors, (107733), 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 18:04:16,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22980 states to 22980 states and 107733 transitions. [2025-04-13 18:04:16,087 INFO L79 Accepts]: Start accepts. Automaton has 22980 states and 107733 transitions. Word has length 64 [2025-04-13 18:04:16,088 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:04:16,088 INFO L485 AbstractCegarLoop]: Abstraction has 22980 states and 107733 transitions. [2025-04-13 18:04:16,088 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:04:16,088 INFO L278 IsEmpty]: Start isEmpty. Operand 22980 states and 107733 transitions. [2025-04-13 18:04:16,134 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:04:16,134 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:04:16,134 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:04:16,134 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2025-04-13 18:04:16,134 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:04:16,135 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:04:16,135 INFO L85 PathProgramCache]: Analyzing trace with hash 2086402565, now seen corresponding path program 31 times [2025-04-13 18:04:16,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:04:16,135 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446845765] [2025-04-13 18:04:16,135 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-13 18:04:16,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:04:16,141 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:04:16,143 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:04:16,143 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 18:04:16,143 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:04:16,481 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 18:04:16,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:04:16,481 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446845765] [2025-04-13 18:04:16,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446845765] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:04:16,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:04:16,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-04-13 18:04:16,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414821756] [2025-04-13 18:04:16,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:04:16,481 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-13 18:04:16,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:04:16,483 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-13 18:04:16,483 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2025-04-13 18:04:16,483 INFO L87 Difference]: Start difference. First operand 22980 states and 107733 transitions. Second operand has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:04:18,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:04:18,707 INFO L93 Difference]: Finished difference Result 28686 states and 133769 transitions. [2025-04-13 18:04:18,708 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-04-13 18:04:18,708 INFO L79 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 64 [2025-04-13 18:04:18,709 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:04:18,840 INFO L225 Difference]: With dead ends: 28686 [2025-04-13 18:04:18,840 INFO L226 Difference]: Without dead ends: 28259 [2025-04-13 18:04:18,853 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=205, Invalid=1957, Unknown=0, NotChecked=0, Total=2162 [2025-04-13 18:04:18,854 INFO L437 NwaCegarLoop]: 74 mSDtfsCounter, 601 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 4628 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 4636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 4628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-04-13 18:04:18,854 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 778 Invalid, 4636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 4628 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-04-13 18:04:18,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28259 states. [2025-04-13 18:04:19,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28259 to 22980. [2025-04-13 18:04:19,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22980 states, 22979 states have (on average 4.688324122024457) internal successors, (107733), 22979 states have internal predecessors, (107733), 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 18:04:19,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22980 states to 22980 states and 107733 transitions. [2025-04-13 18:04:19,846 INFO L79 Accepts]: Start accepts. Automaton has 22980 states and 107733 transitions. Word has length 64 [2025-04-13 18:04:19,846 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:04:19,846 INFO L485 AbstractCegarLoop]: Abstraction has 22980 states and 107733 transitions. [2025-04-13 18:04:19,846 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:04:19,846 INFO L278 IsEmpty]: Start isEmpty. Operand 22980 states and 107733 transitions. [2025-04-13 18:04:19,907 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:04:19,907 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:04:19,907 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:04:19,907 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2025-04-13 18:04:19,909 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:04:19,909 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:04:19,909 INFO L85 PathProgramCache]: Analyzing trace with hash -468359951, now seen corresponding path program 32 times [2025-04-13 18:04:19,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:04:19,909 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689501913] [2025-04-13 18:04:19,909 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 18:04:19,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:04:19,916 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:04:19,921 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:04:19,921 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 18:04:19,921 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:04:20,204 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 18:04:20,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:04:20,204 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689501913] [2025-04-13 18:04:20,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689501913] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:04:20,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:04:20,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-04-13 18:04:20,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645296296] [2025-04-13 18:04:20,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:04:20,205 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-04-13 18:04:20,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:04:20,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-04-13 18:04:20,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2025-04-13 18:04:20,205 INFO L87 Difference]: Start difference. First operand 22980 states and 107733 transitions. Second operand has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:04:22,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:04:22,360 INFO L93 Difference]: Finished difference Result 29609 states and 139594 transitions. [2025-04-13 18:04:22,360 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2025-04-13 18:04:22,360 INFO L79 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 64 [2025-04-13 18:04:22,360 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:04:22,491 INFO L225 Difference]: With dead ends: 29609 [2025-04-13 18:04:22,491 INFO L226 Difference]: Without dead ends: 29137 [2025-04-13 18:04:22,506 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=210, Invalid=1860, Unknown=0, NotChecked=0, Total=2070 [2025-04-13 18:04:22,508 INFO L437 NwaCegarLoop]: 96 mSDtfsCounter, 534 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 4483 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 4494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 4483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-04-13 18:04:22,508 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 745 Invalid, 4494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 4483 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-04-13 18:04:22,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29137 states. [2025-04-13 18:04:23,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29137 to 23000. [2025-04-13 18:04:23,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23000 states, 22999 states have (on average 4.687899473890169) internal successors, (107817), 22999 states have internal predecessors, (107817), 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 18:04:23,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23000 states to 23000 states and 107817 transitions. [2025-04-13 18:04:23,203 INFO L79 Accepts]: Start accepts. Automaton has 23000 states and 107817 transitions. Word has length 64 [2025-04-13 18:04:23,203 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:04:23,203 INFO L485 AbstractCegarLoop]: Abstraction has 23000 states and 107817 transitions. [2025-04-13 18:04:23,203 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:04:23,203 INFO L278 IsEmpty]: Start isEmpty. Operand 23000 states and 107817 transitions. [2025-04-13 18:04:23,246 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:04:23,246 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:04:23,246 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:04:23,247 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2025-04-13 18:04:23,247 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:04:23,247 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:04:23,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1598327203, now seen corresponding path program 33 times [2025-04-13 18:04:23,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:04:23,247 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350026962] [2025-04-13 18:04:23,247 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-13 18:04:23,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:04:23,251 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:04:23,253 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:04:23,254 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-13 18:04:23,254 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:04:23,616 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 18:04:23,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:04:23,616 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350026962] [2025-04-13 18:04:23,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350026962] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:04:23,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:04:23,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-04-13 18:04:23,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652080801] [2025-04-13 18:04:23,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:04:23,617 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-13 18:04:23,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:04:23,617 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-13 18:04:23,617 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2025-04-13 18:04:23,617 INFO L87 Difference]: Start difference. First operand 23000 states and 107817 transitions. Second operand has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:04:25,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:04:25,422 INFO L93 Difference]: Finished difference Result 28631 states and 133488 transitions. [2025-04-13 18:04:25,422 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2025-04-13 18:04:25,422 INFO L79 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 64 [2025-04-13 18:04:25,423 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:04:25,571 INFO L225 Difference]: With dead ends: 28631 [2025-04-13 18:04:25,571 INFO L226 Difference]: Without dead ends: 28159 [2025-04-13 18:04:25,582 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=215, Invalid=2041, Unknown=0, NotChecked=0, Total=2256 [2025-04-13 18:04:25,582 INFO L437 NwaCegarLoop]: 74 mSDtfsCounter, 616 mSDsluCounter, 703 mSDsCounter, 0 mSdLazyCounter, 4618 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 4626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 4618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-04-13 18:04:25,582 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [616 Valid, 777 Invalid, 4626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 4618 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-04-13 18:04:25,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28159 states. [2025-04-13 18:04:26,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28159 to 22930. [2025-04-13 18:04:26,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22930 states, 22929 states have (on average 4.689170918923634) internal successors, (107518), 22929 states have internal predecessors, (107518), 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 18:04:26,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22930 states to 22930 states and 107518 transitions. [2025-04-13 18:04:26,291 INFO L79 Accepts]: Start accepts. Automaton has 22930 states and 107518 transitions. Word has length 64 [2025-04-13 18:04:26,291 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:04:26,291 INFO L485 AbstractCegarLoop]: Abstraction has 22930 states and 107518 transitions. [2025-04-13 18:04:26,291 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:04:26,291 INFO L278 IsEmpty]: Start isEmpty. Operand 22930 states and 107518 transitions. [2025-04-13 18:04:26,337 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:04:26,337 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:04:26,337 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:04:26,337 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2025-04-13 18:04:26,337 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:04:26,338 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:04:26,338 INFO L85 PathProgramCache]: Analyzing trace with hash 480048463, now seen corresponding path program 34 times [2025-04-13 18:04:26,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:04:26,338 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624287625] [2025-04-13 18:04:26,338 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-13 18:04:26,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:04:26,341 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 64 statements into 2 equivalence classes. [2025-04-13 18:04:26,345 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:04:26,345 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-13 18:04:26,345 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:04:26,626 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 18:04:26,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:04:26,626 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624287625] [2025-04-13 18:04:26,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624287625] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:04:26,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:04:26,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-04-13 18:04:26,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922190637] [2025-04-13 18:04:26,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:04:26,626 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-04-13 18:04:26,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:04:26,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-04-13 18:04:26,627 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2025-04-13 18:04:26,627 INFO L87 Difference]: Start difference. First operand 22930 states and 107518 transitions. Second operand has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:04:28,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:04:28,095 INFO L93 Difference]: Finished difference Result 27524 states and 128266 transitions. [2025-04-13 18:04:28,095 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2025-04-13 18:04:28,095 INFO L79 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 64 [2025-04-13 18:04:28,095 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:04:28,239 INFO L225 Difference]: With dead ends: 27524 [2025-04-13 18:04:28,240 INFO L226 Difference]: Without dead ends: 26961 [2025-04-13 18:04:28,253 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=192, Invalid=1614, Unknown=0, NotChecked=0, Total=1806 [2025-04-13 18:04:28,253 INFO L437 NwaCegarLoop]: 71 mSDtfsCounter, 502 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 3789 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 3794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-04-13 18:04:28,253 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [502 Valid, 542 Invalid, 3794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3789 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-04-13 18:04:28,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26961 states. [2025-04-13 18:04:28,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26961 to 22950. [2025-04-13 18:04:28,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22950 states, 22949 states have (on average 4.687873109939431) internal successors, (107582), 22949 states have internal predecessors, (107582), 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 18:04:28,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22950 states to 22950 states and 107582 transitions. [2025-04-13 18:04:28,908 INFO L79 Accepts]: Start accepts. Automaton has 22950 states and 107582 transitions. Word has length 64 [2025-04-13 18:04:28,909 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:04:28,909 INFO L485 AbstractCegarLoop]: Abstraction has 22950 states and 107582 transitions. [2025-04-13 18:04:28,909 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:04:28,909 INFO L278 IsEmpty]: Start isEmpty. Operand 22950 states and 107582 transitions. [2025-04-13 18:04:28,952 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:04:28,953 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:04:28,953 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:04:28,953 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2025-04-13 18:04:28,953 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:04:28,953 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:04:28,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1298959773, now seen corresponding path program 35 times [2025-04-13 18:04:28,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:04:28,953 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356722789] [2025-04-13 18:04:28,953 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-13 18:04:28,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:04:28,957 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:04:29,104 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:04:29,104 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 18:04:29,104 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:04:29,316 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 18:04:29,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:04:29,316 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356722789] [2025-04-13 18:04:29,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356722789] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:04:29,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:04:29,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-04-13 18:04:29,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122685255] [2025-04-13 18:04:29,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:04:29,316 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-13 18:04:29,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:04:29,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-13 18:04:29,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2025-04-13 18:04:29,317 INFO L87 Difference]: Start difference. First operand 22950 states and 107582 transitions. Second operand has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:04:31,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:04:31,379 INFO L93 Difference]: Finished difference Result 27879 states and 130227 transitions. [2025-04-13 18:04:31,379 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2025-04-13 18:04:31,379 INFO L79 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 64 [2025-04-13 18:04:31,379 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:04:31,535 INFO L225 Difference]: With dead ends: 27879 [2025-04-13 18:04:31,535 INFO L226 Difference]: Without dead ends: 27452 [2025-04-13 18:04:31,547 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=192, Invalid=1788, Unknown=0, NotChecked=0, Total=1980 [2025-04-13 18:04:31,547 INFO L437 NwaCegarLoop]: 70 mSDtfsCounter, 548 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 4486 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 4492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-04-13 18:04:31,547 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 738 Invalid, 4492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4486 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-04-13 18:04:31,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27452 states. [2025-04-13 18:04:31,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27452 to 22990. [2025-04-13 18:04:32,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22990 states, 22989 states have (on average 4.686154247683675) internal successors, (107730), 22989 states have internal predecessors, (107730), 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 18:04:32,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22990 states to 22990 states and 107730 transitions. [2025-04-13 18:04:32,417 INFO L79 Accepts]: Start accepts. Automaton has 22990 states and 107730 transitions. Word has length 64 [2025-04-13 18:04:32,417 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:04:32,417 INFO L485 AbstractCegarLoop]: Abstraction has 22990 states and 107730 transitions. [2025-04-13 18:04:32,417 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:04:32,417 INFO L278 IsEmpty]: Start isEmpty. Operand 22990 states and 107730 transitions. [2025-04-13 18:04:32,463 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:04:32,463 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:04:32,463 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:04:32,464 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2025-04-13 18:04:32,464 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:04:32,464 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:04:32,464 INFO L85 PathProgramCache]: Analyzing trace with hash 194551213, now seen corresponding path program 36 times [2025-04-13 18:04:32,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:04:32,464 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170285956] [2025-04-13 18:04:32,464 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-13 18:04:32,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:04:32,469 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:04:32,473 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:04:32,473 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-04-13 18:04:32,473 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:04:32,766 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 18:04:32,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:04:32,767 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170285956] [2025-04-13 18:04:32,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170285956] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:04:32,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:04:32,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-04-13 18:04:32,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600020670] [2025-04-13 18:04:32,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:04:32,767 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-04-13 18:04:32,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:04:32,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-04-13 18:04:32,767 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2025-04-13 18:04:32,767 INFO L87 Difference]: Start difference. First operand 22990 states and 107730 transitions. Second operand has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:04:34,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:04:34,667 INFO L93 Difference]: Finished difference Result 27567 states and 128414 transitions. [2025-04-13 18:04:34,667 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2025-04-13 18:04:34,667 INFO L79 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 64 [2025-04-13 18:04:34,667 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:04:34,803 INFO L225 Difference]: With dead ends: 27567 [2025-04-13 18:04:34,803 INFO L226 Difference]: Without dead ends: 26981 [2025-04-13 18:04:34,817 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=203, Invalid=1689, Unknown=0, NotChecked=0, Total=1892 [2025-04-13 18:04:34,817 INFO L437 NwaCegarLoop]: 71 mSDtfsCounter, 524 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 3803 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 3808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-04-13 18:04:34,817 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 531 Invalid, 3808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3803 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-04-13 18:04:34,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26981 states. [2025-04-13 18:04:35,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26981 to 22970. [2025-04-13 18:04:35,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22970 states, 22969 states have (on average 4.68657756106056) internal successors, (107646), 22969 states have internal predecessors, (107646), 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 18:04:35,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22970 states to 22970 states and 107646 transitions. [2025-04-13 18:04:35,666 INFO L79 Accepts]: Start accepts. Automaton has 22970 states and 107646 transitions. Word has length 64 [2025-04-13 18:04:35,666 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:04:35,666 INFO L485 AbstractCegarLoop]: Abstraction has 22970 states and 107646 transitions. [2025-04-13 18:04:35,666 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:04:35,666 INFO L278 IsEmpty]: Start isEmpty. Operand 22970 states and 107646 transitions. [2025-04-13 18:04:35,716 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:04:35,716 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:04:35,716 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:04:35,717 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2025-04-13 18:04:35,717 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:04:35,717 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:04:35,717 INFO L85 PathProgramCache]: Analyzing trace with hash 175412003, now seen corresponding path program 37 times [2025-04-13 18:04:35,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:04:35,717 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976517359] [2025-04-13 18:04:35,717 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-13 18:04:35,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:04:35,722 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:04:35,725 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:04:35,725 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 18:04:35,729 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:04:36,305 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 18:04:36,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:04:36,305 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976517359] [2025-04-13 18:04:36,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976517359] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:04:36,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:04:36,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-04-13 18:04:36,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747553659] [2025-04-13 18:04:36,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:04:36,305 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-13 18:04:36,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:04:36,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-13 18:04:36,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2025-04-13 18:04:36,310 INFO L87 Difference]: Start difference. First operand 22970 states and 107646 transitions. Second operand has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:04:38,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:04:38,705 INFO L93 Difference]: Finished difference Result 27528 states and 128825 transitions. [2025-04-13 18:04:38,705 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2025-04-13 18:04:38,705 INFO L79 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 64 [2025-04-13 18:04:38,706 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:04:38,850 INFO L225 Difference]: With dead ends: 27528 [2025-04-13 18:04:38,850 INFO L226 Difference]: Without dead ends: 27090 [2025-04-13 18:04:38,859 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=213, Invalid=2043, Unknown=0, NotChecked=0, Total=2256 [2025-04-13 18:04:38,859 INFO L437 NwaCegarLoop]: 71 mSDtfsCounter, 593 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 4545 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 593 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 4552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 4545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-04-13 18:04:38,860 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [593 Valid, 744 Invalid, 4552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 4545 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-04-13 18:04:38,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27090 states. [2025-04-13 18:04:39,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27090 to 22930. [2025-04-13 18:04:39,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22930 states, 22929 states have (on average 4.687426403244799) internal successors, (107478), 22929 states have internal predecessors, (107478), 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 18:04:39,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22930 states to 22930 states and 107478 transitions. [2025-04-13 18:04:39,752 INFO L79 Accepts]: Start accepts. Automaton has 22930 states and 107478 transitions. Word has length 64 [2025-04-13 18:04:39,753 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:04:39,753 INFO L485 AbstractCegarLoop]: Abstraction has 22930 states and 107478 transitions. [2025-04-13 18:04:39,753 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:04:39,753 INFO L278 IsEmpty]: Start isEmpty. Operand 22930 states and 107478 transitions. [2025-04-13 18:04:39,803 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:04:39,804 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:04:39,804 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:04:39,804 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2025-04-13 18:04:39,804 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:04:39,804 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:04:39,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1686919613, now seen corresponding path program 38 times [2025-04-13 18:04:39,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:04:39,804 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096006048] [2025-04-13 18:04:39,804 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 18:04:39,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:04:39,811 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:04:39,817 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:04:39,817 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 18:04:39,817 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:04:40,153 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 18:04:40,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:04:40,153 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096006048] [2025-04-13 18:04:40,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096006048] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:04:40,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:04:40,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-04-13 18:04:40,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132660602] [2025-04-13 18:04:40,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:04:40,155 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-04-13 18:04:40,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:04:40,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-04-13 18:04:40,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2025-04-13 18:04:40,155 INFO L87 Difference]: Start difference. First operand 22930 states and 107478 transitions. Second operand has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:04:42,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:04:42,121 INFO L93 Difference]: Finished difference Result 26663 states and 124790 transitions. [2025-04-13 18:04:42,122 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-04-13 18:04:42,122 INFO L79 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 64 [2025-04-13 18:04:42,122 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:04:42,264 INFO L225 Difference]: With dead ends: 26663 [2025-04-13 18:04:42,264 INFO L226 Difference]: Without dead ends: 25964 [2025-04-13 18:04:42,279 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=169, Invalid=1471, Unknown=0, NotChecked=0, Total=1640 [2025-04-13 18:04:42,280 INFO L437 NwaCegarLoop]: 71 mSDtfsCounter, 433 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 3880 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 3885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-04-13 18:04:42,280 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 540 Invalid, 3885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3880 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-04-13 18:04:42,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25964 states. [2025-04-13 18:04:42,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25964 to 22930. [2025-04-13 18:04:43,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22930 states, 22929 states have (on average 4.686554145405382) internal successors, (107458), 22929 states have internal predecessors, (107458), 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 18:04:43,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22930 states to 22930 states and 107458 transitions. [2025-04-13 18:04:43,123 INFO L79 Accepts]: Start accepts. Automaton has 22930 states and 107458 transitions. Word has length 64 [2025-04-13 18:04:43,124 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:04:43,124 INFO L485 AbstractCegarLoop]: Abstraction has 22930 states and 107458 transitions. [2025-04-13 18:04:43,124 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:04:43,124 INFO L278 IsEmpty]: Start isEmpty. Operand 22930 states and 107458 transitions. [2025-04-13 18:04:43,177 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:04:43,178 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:04:43,178 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:04:43,178 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2025-04-13 18:04:43,178 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:04:43,178 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:04:43,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1594960127, now seen corresponding path program 39 times [2025-04-13 18:04:43,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:04:43,179 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366417355] [2025-04-13 18:04:43,179 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-13 18:04:43,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:04:43,183 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:04:43,187 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:04:43,187 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-13 18:04:43,187 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:04:43,738 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 18:04:43,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:04:43,738 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366417355] [2025-04-13 18:04:43,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366417355] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:04:43,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:04:43,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-04-13 18:04:43,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002172100] [2025-04-13 18:04:43,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:04:43,739 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-13 18:04:43,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:04:43,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-13 18:04:43,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2025-04-13 18:04:43,739 INFO L87 Difference]: Start difference. First operand 22930 states and 107458 transitions. Second operand has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:04:45,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:04:45,833 INFO L93 Difference]: Finished difference Result 27814 states and 129899 transitions. [2025-04-13 18:04:45,833 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2025-04-13 18:04:45,833 INFO L79 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 64 [2025-04-13 18:04:45,833 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:04:46,151 INFO L225 Difference]: With dead ends: 27814 [2025-04-13 18:04:46,152 INFO L226 Difference]: Without dead ends: 27392 [2025-04-13 18:04:46,158 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 386 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=211, Invalid=1951, Unknown=0, NotChecked=0, Total=2162 [2025-04-13 18:04:46,159 INFO L437 NwaCegarLoop]: 71 mSDtfsCounter, 632 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 4333 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 4339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-04-13 18:04:46,159 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 743 Invalid, 4339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4333 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-04-13 18:04:46,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27392 states. [2025-04-13 18:04:46,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27392 to 22978. [2025-04-13 18:04:46,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22978 states, 22977 states have (on average 4.684423553988771) internal successors, (107634), 22977 states have internal predecessors, (107634), 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 18:04:46,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22978 states to 22978 states and 107634 transitions. [2025-04-13 18:04:46,999 INFO L79 Accepts]: Start accepts. Automaton has 22978 states and 107634 transitions. Word has length 64 [2025-04-13 18:04:46,999 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:04:46,999 INFO L485 AbstractCegarLoop]: Abstraction has 22978 states and 107634 transitions. [2025-04-13 18:04:46,999 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:04:47,000 INFO L278 IsEmpty]: Start isEmpty. Operand 22978 states and 107634 transitions. [2025-04-13 18:04:47,051 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:04:47,052 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:04:47,055 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:04:47,055 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2025-04-13 18:04:47,056 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:04:47,056 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:04:47,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1286041917, now seen corresponding path program 40 times [2025-04-13 18:04:47,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:04:47,056 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180137279] [2025-04-13 18:04:47,056 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-13 18:04:47,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:04:47,063 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 64 statements into 2 equivalence classes. [2025-04-13 18:04:47,067 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:04:47,067 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-13 18:04:47,067 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:04:47,486 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 18:04:47,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:04:47,486 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180137279] [2025-04-13 18:04:47,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180137279] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:04:47,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:04:47,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-04-13 18:04:47,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749988818] [2025-04-13 18:04:47,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:04:47,487 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-04-13 18:04:47,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:04:47,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-04-13 18:04:47,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2025-04-13 18:04:47,487 INFO L87 Difference]: Start difference. First operand 22978 states and 107634 transitions. Second operand has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:04:50,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:04:50,041 INFO L93 Difference]: Finished difference Result 26324 states and 123464 transitions. [2025-04-13 18:04:50,041 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-04-13 18:04:50,041 INFO L79 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 64 [2025-04-13 18:04:50,041 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:04:50,422 INFO L225 Difference]: With dead ends: 26324 [2025-04-13 18:04:50,422 INFO L226 Difference]: Without dead ends: 25514 [2025-04-13 18:04:50,459 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=178, Invalid=1544, Unknown=0, NotChecked=0, Total=1722 [2025-04-13 18:04:50,467 INFO L437 NwaCegarLoop]: 72 mSDtfsCounter, 458 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 3852 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 3857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-04-13 18:04:50,467 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 527 Invalid, 3857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3852 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-04-13 18:04:50,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25514 states. [2025-04-13 18:04:51,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25514 to 22878. [2025-04-13 18:04:51,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22878 states, 22877 states have (on average 4.686541067447655) internal successors, (107214), 22877 states have internal predecessors, (107214), 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 18:04:51,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22878 states to 22878 states and 107214 transitions. [2025-04-13 18:04:51,623 INFO L79 Accepts]: Start accepts. Automaton has 22878 states and 107214 transitions. Word has length 64 [2025-04-13 18:04:51,624 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:04:51,624 INFO L485 AbstractCegarLoop]: Abstraction has 22878 states and 107214 transitions. [2025-04-13 18:04:51,624 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:04:51,624 INFO L278 IsEmpty]: Start isEmpty. Operand 22878 states and 107214 transitions. [2025-04-13 18:04:51,672 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:04:51,672 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:04:51,672 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:04:51,672 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2025-04-13 18:04:51,672 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:04:51,673 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:04:51,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1205328611, now seen corresponding path program 41 times [2025-04-13 18:04:51,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:04:51,673 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137316858] [2025-04-13 18:04:51,673 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-13 18:04:51,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:04:51,677 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:04:51,681 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:04:51,681 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 18:04:51,681 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:04:51,920 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 18:04:51,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:04:51,921 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137316858] [2025-04-13 18:04:51,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137316858] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:04:51,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:04:51,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-04-13 18:04:51,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331339671] [2025-04-13 18:04:51,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:04:51,932 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-13 18:04:51,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:04:51,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-13 18:04:51,932 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2025-04-13 18:04:51,932 INFO L87 Difference]: Start difference. First operand 22878 states and 107214 transitions. Second operand has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:04:53,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:04:53,974 INFO L93 Difference]: Finished difference Result 27292 states and 127769 transitions. [2025-04-13 18:04:53,975 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-04-13 18:04:53,975 INFO L79 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 64 [2025-04-13 18:04:53,975 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:04:54,115 INFO L225 Difference]: With dead ends: 27292 [2025-04-13 18:04:54,115 INFO L226 Difference]: Without dead ends: 26826 [2025-04-13 18:04:54,129 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=216, Invalid=2040, Unknown=0, NotChecked=0, Total=2256 [2025-04-13 18:04:54,133 INFO L437 NwaCegarLoop]: 72 mSDtfsCounter, 603 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 4501 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 4508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 4501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-04-13 18:04:54,134 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [603 Valid, 750 Invalid, 4508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 4501 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-04-13 18:04:54,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26826 states. [2025-04-13 18:04:55,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26826 to 22810. [2025-04-13 18:04:55,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22810 states, 22809 states have (on average 4.689113946249288) internal successors, (106954), 22809 states have internal predecessors, (106954), 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 18:04:55,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22810 states to 22810 states and 106954 transitions. [2025-04-13 18:04:55,411 INFO L79 Accepts]: Start accepts. Automaton has 22810 states and 106954 transitions. Word has length 64 [2025-04-13 18:04:55,411 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:04:55,411 INFO L485 AbstractCegarLoop]: Abstraction has 22810 states and 106954 transitions. [2025-04-13 18:04:55,411 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:04:55,412 INFO L278 IsEmpty]: Start isEmpty. Operand 22810 states and 106954 transitions. [2025-04-13 18:04:55,458 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:04:55,458 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:04:55,458 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:04:55,458 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2025-04-13 18:04:55,459 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:04:55,459 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:04:55,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1631997547, now seen corresponding path program 42 times [2025-04-13 18:04:55,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:04:55,459 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945195916] [2025-04-13 18:04:55,459 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-13 18:04:55,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:04:55,466 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:04:55,468 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:04:55,469 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-04-13 18:04:55,469 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:04:55,688 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 18:04:55,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:04:55,688 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945195916] [2025-04-13 18:04:55,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945195916] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:04:55,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:04:55,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-04-13 18:04:55,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071409475] [2025-04-13 18:04:55,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:04:55,688 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-04-13 18:04:55,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:04:55,689 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-04-13 18:04:55,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2025-04-13 18:04:55,689 INFO L87 Difference]: Start difference. First operand 22810 states and 106954 transitions. Second operand has 15 states, 14 states have (on average 4.571428571428571) internal successors, (64), 15 states have internal predecessors, (64), 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 18:04:58,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:04:58,023 INFO L93 Difference]: Finished difference Result 27480 states and 129078 transitions. [2025-04-13 18:04:58,023 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2025-04-13 18:04:58,023 INFO L79 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.571428571428571) internal successors, (64), 15 states have internal predecessors, (64), 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 64 [2025-04-13 18:04:58,023 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:04:58,280 INFO L225 Difference]: With dead ends: 27480 [2025-04-13 18:04:58,280 INFO L226 Difference]: Without dead ends: 26435 [2025-04-13 18:04:58,295 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=201, Invalid=1691, Unknown=0, NotChecked=0, Total=1892 [2025-04-13 18:04:58,296 INFO L437 NwaCegarLoop]: 96 mSDtfsCounter, 434 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 4343 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 4349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-04-13 18:04:58,297 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 604 Invalid, 4349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4343 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-04-13 18:04:58,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26435 states. [2025-04-13 18:04:58,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26435 to 23184. [2025-04-13 18:04:59,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23184 states, 23183 states have (on average 4.687529655350904) internal successors, (108671), 23183 states have internal predecessors, (108671), 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 18:04:59,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23184 states to 23184 states and 108671 transitions. [2025-04-13 18:04:59,440 INFO L79 Accepts]: Start accepts. Automaton has 23184 states and 108671 transitions. Word has length 64 [2025-04-13 18:04:59,441 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:04:59,441 INFO L485 AbstractCegarLoop]: Abstraction has 23184 states and 108671 transitions. [2025-04-13 18:04:59,441 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.571428571428571) internal successors, (64), 15 states have internal predecessors, (64), 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 18:04:59,441 INFO L278 IsEmpty]: Start isEmpty. Operand 23184 states and 108671 transitions. [2025-04-13 18:04:59,496 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:04:59,496 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:04:59,496 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:04:59,496 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2025-04-13 18:04:59,497 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:04:59,497 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:04:59,497 INFO L85 PathProgramCache]: Analyzing trace with hash 481407021, now seen corresponding path program 43 times [2025-04-13 18:04:59,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:04:59,497 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105275795] [2025-04-13 18:04:59,497 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-13 18:04:59,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:04:59,501 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:04:59,504 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:04:59,504 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 18:04:59,504 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:04:59,836 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 18:04:59,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:04:59,837 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105275795] [2025-04-13 18:04:59,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105275795] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:04:59,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:04:59,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-04-13 18:04:59,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89968189] [2025-04-13 18:04:59,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:04:59,838 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-13 18:04:59,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:04:59,840 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-13 18:04:59,840 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2025-04-13 18:04:59,840 INFO L87 Difference]: Start difference. First operand 23184 states and 108671 transitions. Second operand has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:05:01,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:05:01,857 INFO L93 Difference]: Finished difference Result 27488 states and 128960 transitions. [2025-04-13 18:05:01,857 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2025-04-13 18:05:01,858 INFO L79 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 64 [2025-04-13 18:05:01,861 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:05:02,073 INFO L225 Difference]: With dead ends: 27488 [2025-04-13 18:05:02,073 INFO L226 Difference]: Without dead ends: 26826 [2025-04-13 18:05:02,087 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=192, Invalid=1788, Unknown=0, NotChecked=0, Total=1980 [2025-04-13 18:05:02,088 INFO L437 NwaCegarLoop]: 74 mSDtfsCounter, 546 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 4308 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 4314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-04-13 18:05:02,088 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 772 Invalid, 4314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4308 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-04-13 18:05:02,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26826 states. [2025-04-13 18:05:02,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26826 to 23184. [2025-04-13 18:05:02,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23184 states, 23183 states have (on average 4.6833886899883534) internal successors, (108575), 23183 states have internal predecessors, (108575), 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 18:05:03,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23184 states to 23184 states and 108575 transitions. [2025-04-13 18:05:03,182 INFO L79 Accepts]: Start accepts. Automaton has 23184 states and 108575 transitions. Word has length 64 [2025-04-13 18:05:03,182 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:05:03,183 INFO L485 AbstractCegarLoop]: Abstraction has 23184 states and 108575 transitions. [2025-04-13 18:05:03,183 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:05:03,183 INFO L278 IsEmpty]: Start isEmpty. Operand 23184 states and 108575 transitions. [2025-04-13 18:05:03,233 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:05:03,233 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:05:03,234 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:05:03,234 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2025-04-13 18:05:03,234 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:05:03,234 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:05:03,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1791388915, now seen corresponding path program 44 times [2025-04-13 18:05:03,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:05:03,234 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028913529] [2025-04-13 18:05:03,234 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 18:05:03,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:05:03,239 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:05:03,242 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:05:03,242 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 18:05:03,242 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:05:03,509 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 18:05:03,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:05:03,509 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028913529] [2025-04-13 18:05:03,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028913529] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:05:03,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:05:03,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-04-13 18:05:03,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400836277] [2025-04-13 18:05:03,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:05:03,509 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-04-13 18:05:03,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:05:03,510 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-04-13 18:05:03,510 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2025-04-13 18:05:03,510 INFO L87 Difference]: Start difference. First operand 23184 states and 108575 transitions. Second operand has 15 states, 14 states have (on average 4.571428571428571) internal successors, (64), 15 states have internal predecessors, (64), 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 18:05:05,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:05:05,991 INFO L93 Difference]: Finished difference Result 29379 states and 138019 transitions. [2025-04-13 18:05:05,992 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2025-04-13 18:05:05,992 INFO L79 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.571428571428571) internal successors, (64), 15 states have internal predecessors, (64), 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 64 [2025-04-13 18:05:05,992 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:05:06,150 INFO L225 Difference]: With dead ends: 29379 [2025-04-13 18:05:06,150 INFO L226 Difference]: Without dead ends: 28459 [2025-04-13 18:05:06,160 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=281, Invalid=2371, Unknown=0, NotChecked=0, Total=2652 [2025-04-13 18:05:06,160 INFO L437 NwaCegarLoop]: 107 mSDtfsCounter, 531 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 4908 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 4919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 4908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-04-13 18:05:06,160 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 678 Invalid, 4919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 4908 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-04-13 18:05:06,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28459 states. [2025-04-13 18:05:06,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28459 to 23250. [2025-04-13 18:05:06,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23250 states, 23249 states have (on average 4.682265903909846) internal successors, (108858), 23249 states have internal predecessors, (108858), 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 18:05:06,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23250 states to 23250 states and 108858 transitions. [2025-04-13 18:05:07,020 INFO L79 Accepts]: Start accepts. Automaton has 23250 states and 108858 transitions. Word has length 64 [2025-04-13 18:05:07,020 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:05:07,020 INFO L485 AbstractCegarLoop]: Abstraction has 23250 states and 108858 transitions. [2025-04-13 18:05:07,020 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.571428571428571) internal successors, (64), 15 states have internal predecessors, (64), 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 18:05:07,021 INFO L278 IsEmpty]: Start isEmpty. Operand 23250 states and 108858 transitions. [2025-04-13 18:05:07,073 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:05:07,074 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:05:07,074 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:05:07,074 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2025-04-13 18:05:07,074 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:05:07,074 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:05:07,074 INFO L85 PathProgramCache]: Analyzing trace with hash 2025653323, now seen corresponding path program 45 times [2025-04-13 18:05:07,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:05:07,074 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064271477] [2025-04-13 18:05:07,075 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-13 18:05:07,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:05:07,083 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:05:07,087 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:05:07,087 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-13 18:05:07,087 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:05:07,376 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 18:05:07,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:05:07,377 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064271477] [2025-04-13 18:05:07,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064271477] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:05:07,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:05:07,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-04-13 18:05:07,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232875770] [2025-04-13 18:05:07,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:05:07,377 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-13 18:05:07,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:05:07,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-13 18:05:07,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2025-04-13 18:05:07,378 INFO L87 Difference]: Start difference. First operand 23250 states and 108858 transitions. Second operand has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:05:09,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:05:09,646 INFO L93 Difference]: Finished difference Result 27194 states and 127575 transitions. [2025-04-13 18:05:09,646 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2025-04-13 18:05:09,647 INFO L79 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 64 [2025-04-13 18:05:09,647 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:05:09,792 INFO L225 Difference]: With dead ends: 27194 [2025-04-13 18:05:09,792 INFO L226 Difference]: Without dead ends: 26588 [2025-04-13 18:05:09,801 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=195, Invalid=1785, Unknown=0, NotChecked=0, Total=1980 [2025-04-13 18:05:09,801 INFO L437 NwaCegarLoop]: 73 mSDtfsCounter, 561 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 4285 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 4291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-04-13 18:05:09,802 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [561 Valid, 760 Invalid, 4291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4285 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-04-13 18:05:09,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26588 states. [2025-04-13 18:05:10,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26588 to 23066. [2025-04-13 18:05:10,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23066 states, 23065 states have (on average 4.688575764144808) internal successors, (108142), 23065 states have internal predecessors, (108142), 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 18:05:10,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23066 states to 23066 states and 108142 transitions. [2025-04-13 18:05:10,595 INFO L79 Accepts]: Start accepts. Automaton has 23066 states and 108142 transitions. Word has length 64 [2025-04-13 18:05:10,595 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:05:10,595 INFO L485 AbstractCegarLoop]: Abstraction has 23066 states and 108142 transitions. [2025-04-13 18:05:10,595 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:05:10,595 INFO L278 IsEmpty]: Start isEmpty. Operand 23066 states and 108142 transitions. [2025-04-13 18:05:10,646 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:05:10,646 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:05:10,646 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:05:10,646 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2025-04-13 18:05:10,646 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:05:10,647 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:05:10,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1830192371, now seen corresponding path program 46 times [2025-04-13 18:05:10,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:05:10,647 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131737154] [2025-04-13 18:05:10,647 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-13 18:05:10,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:05:10,651 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 64 statements into 2 equivalence classes. [2025-04-13 18:05:10,654 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:05:10,655 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-13 18:05:10,655 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:05:11,212 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 18:05:11,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:05:11,213 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131737154] [2025-04-13 18:05:11,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131737154] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:05:11,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:05:11,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-04-13 18:05:11,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805033430] [2025-04-13 18:05:11,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:05:11,213 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-04-13 18:05:11,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:05:11,213 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-04-13 18:05:11,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2025-04-13 18:05:11,213 INFO L87 Difference]: Start difference. First operand 23066 states and 108142 transitions. Second operand has 15 states, 14 states have (on average 4.571428571428571) internal successors, (64), 15 states have internal predecessors, (64), 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 18:05:13,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:05:13,651 INFO L93 Difference]: Finished difference Result 28800 states and 135791 transitions. [2025-04-13 18:05:13,651 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2025-04-13 18:05:13,651 INFO L79 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.571428571428571) internal successors, (64), 15 states have internal predecessors, (64), 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 64 [2025-04-13 18:05:13,651 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:05:13,812 INFO L225 Difference]: With dead ends: 28800 [2025-04-13 18:05:13,812 INFO L226 Difference]: Without dead ends: 27785 [2025-04-13 18:05:13,827 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=274, Invalid=2276, Unknown=0, NotChecked=0, Total=2550 [2025-04-13 18:05:13,827 INFO L437 NwaCegarLoop]: 114 mSDtfsCounter, 472 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 5117 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 5129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 5117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-04-13 18:05:13,828 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [472 Valid, 727 Invalid, 5129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 5117 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-04-13 18:05:13,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27785 states. [2025-04-13 18:05:14,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27785 to 22998. [2025-04-13 18:05:14,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22998 states, 22997 states have (on average 4.69026394747141) internal successors, (107862), 22997 states have internal predecessors, (107862), 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 18:05:14,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22998 states to 22998 states and 107862 transitions. [2025-04-13 18:05:14,581 INFO L79 Accepts]: Start accepts. Automaton has 22998 states and 107862 transitions. Word has length 64 [2025-04-13 18:05:14,581 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:05:14,581 INFO L485 AbstractCegarLoop]: Abstraction has 22998 states and 107862 transitions. [2025-04-13 18:05:14,581 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.571428571428571) internal successors, (64), 15 states have internal predecessors, (64), 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 18:05:14,581 INFO L278 IsEmpty]: Start isEmpty. Operand 22998 states and 107862 transitions. [2025-04-13 18:05:14,633 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:05:14,633 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:05:14,633 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:05:14,633 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2025-04-13 18:05:14,633 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:05:14,633 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:05:14,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1432178759, now seen corresponding path program 47 times [2025-04-13 18:05:14,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:05:14,634 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177180689] [2025-04-13 18:05:14,634 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-13 18:05:14,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:05:14,641 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:05:14,644 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:05:14,644 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 18:05:14,644 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:05:15,154 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 18:05:15,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:05:15,154 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177180689] [2025-04-13 18:05:15,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177180689] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:05:15,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:05:15,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-04-13 18:05:15,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828491721] [2025-04-13 18:05:15,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:05:15,154 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-13 18:05:15,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:05:15,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-13 18:05:15,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2025-04-13 18:05:15,155 INFO L87 Difference]: Start difference. First operand 22998 states and 107862 transitions. Second operand has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:05:17,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:05:17,312 INFO L93 Difference]: Finished difference Result 29344 states and 137975 transitions. [2025-04-13 18:05:17,312 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2025-04-13 18:05:17,312 INFO L79 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 64 [2025-04-13 18:05:17,312 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:05:17,478 INFO L225 Difference]: With dead ends: 29344 [2025-04-13 18:05:17,478 INFO L226 Difference]: Without dead ends: 28917 [2025-04-13 18:05:17,488 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=220, Invalid=2036, Unknown=0, NotChecked=0, Total=2256 [2025-04-13 18:05:17,489 INFO L437 NwaCegarLoop]: 88 mSDtfsCounter, 611 mSDsluCounter, 832 mSDsCounter, 0 mSdLazyCounter, 4931 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 4940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 4931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-04-13 18:05:17,489 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 920 Invalid, 4940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 4931 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-04-13 18:05:17,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28917 states. [2025-04-13 18:05:18,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28917 to 23088. [2025-04-13 18:05:18,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23088 states, 23087 states have (on average 4.689435613115606) internal successors, (108265), 23087 states have internal predecessors, (108265), 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 18:05:18,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23088 states to 23088 states and 108265 transitions. [2025-04-13 18:05:18,277 INFO L79 Accepts]: Start accepts. Automaton has 23088 states and 108265 transitions. Word has length 64 [2025-04-13 18:05:18,278 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:05:18,278 INFO L485 AbstractCegarLoop]: Abstraction has 23088 states and 108265 transitions. [2025-04-13 18:05:18,278 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:05:18,278 INFO L278 IsEmpty]: Start isEmpty. Operand 23088 states and 108265 transitions. [2025-04-13 18:05:18,323 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:05:18,323 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:05:18,324 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:05:18,324 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2025-04-13 18:05:18,324 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:05:18,326 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:05:18,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1739533979, now seen corresponding path program 48 times [2025-04-13 18:05:18,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:05:18,326 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89989664] [2025-04-13 18:05:18,326 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-13 18:05:18,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:05:18,330 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:05:18,333 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:05:18,333 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-04-13 18:05:18,333 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:05:18,559 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 18:05:18,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:05:18,560 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89989664] [2025-04-13 18:05:18,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89989664] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:05:18,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:05:18,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-04-13 18:05:18,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876979276] [2025-04-13 18:05:18,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:05:18,560 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-04-13 18:05:18,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:05:18,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-04-13 18:05:18,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2025-04-13 18:05:18,561 INFO L87 Difference]: Start difference. First operand 23088 states and 108265 transitions. Second operand has 15 states, 14 states have (on average 4.571428571428571) internal successors, (64), 15 states have internal predecessors, (64), 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 18:05:20,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:05:20,480 INFO L93 Difference]: Finished difference Result 29582 states and 138775 transitions. [2025-04-13 18:05:20,480 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2025-04-13 18:05:20,480 INFO L79 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.571428571428571) internal successors, (64), 15 states have internal predecessors, (64), 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 64 [2025-04-13 18:05:20,480 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:05:20,745 INFO L225 Difference]: With dead ends: 29582 [2025-04-13 18:05:20,745 INFO L226 Difference]: Without dead ends: 28662 [2025-04-13 18:05:20,751 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=213, Invalid=1767, Unknown=0, NotChecked=0, Total=1980 [2025-04-13 18:05:20,751 INFO L437 NwaCegarLoop]: 101 mSDtfsCounter, 482 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 4498 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 4507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 4498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-04-13 18:05:20,751 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 684 Invalid, 4507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 4498 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-04-13 18:05:20,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28662 states. [2025-04-13 18:05:21,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28662 to 23268. [2025-04-13 18:05:21,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23268 states, 23267 states have (on average 4.692439936390596) internal successors, (109179), 23267 states have internal predecessors, (109179), 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 18:05:21,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23268 states to 23268 states and 109179 transitions. [2025-04-13 18:05:21,411 INFO L79 Accepts]: Start accepts. Automaton has 23268 states and 109179 transitions. Word has length 64 [2025-04-13 18:05:21,411 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:05:21,411 INFO L485 AbstractCegarLoop]: Abstraction has 23268 states and 109179 transitions. [2025-04-13 18:05:21,411 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.571428571428571) internal successors, (64), 15 states have internal predecessors, (64), 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 18:05:21,411 INFO L278 IsEmpty]: Start isEmpty. Operand 23268 states and 109179 transitions. [2025-04-13 18:05:21,455 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:05:21,456 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:05:21,456 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:05:21,456 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2025-04-13 18:05:21,456 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:05:21,456 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:05:21,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1920254121, now seen corresponding path program 49 times [2025-04-13 18:05:21,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:05:21,456 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041554663] [2025-04-13 18:05:21,456 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-13 18:05:21,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:05:21,460 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:05:21,463 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:05:21,463 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 18:05:21,463 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:05:21,676 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 18:05:21,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:05:21,677 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041554663] [2025-04-13 18:05:21,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041554663] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:05:21,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:05:21,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-04-13 18:05:21,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829186017] [2025-04-13 18:05:21,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:05:21,677 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-13 18:05:21,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:05:21,677 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-13 18:05:21,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2025-04-13 18:05:21,677 INFO L87 Difference]: Start difference. First operand 23268 states and 109179 transitions. Second operand has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:05:23,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:05:23,464 INFO L93 Difference]: Finished difference Result 29505 states and 138682 transitions. [2025-04-13 18:05:23,464 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2025-04-13 18:05:23,464 INFO L79 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 64 [2025-04-13 18:05:23,464 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:05:23,592 INFO L225 Difference]: With dead ends: 29505 [2025-04-13 18:05:23,593 INFO L226 Difference]: Without dead ends: 29033 [2025-04-13 18:05:23,605 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=220, Invalid=2036, Unknown=0, NotChecked=0, Total=2256 [2025-04-13 18:05:23,606 INFO L437 NwaCegarLoop]: 88 mSDtfsCounter, 612 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 4922 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 4931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 4922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-04-13 18:05:23,606 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [612 Valid, 917 Invalid, 4931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 4922 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-04-13 18:05:23,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29033 states. [2025-04-13 18:05:24,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29033 to 23268. [2025-04-13 18:05:24,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23268 states, 23267 states have (on average 4.691580349851721) internal successors, (109159), 23267 states have internal predecessors, (109159), 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 18:05:24,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23268 states to 23268 states and 109159 transitions. [2025-04-13 18:05:24,217 INFO L79 Accepts]: Start accepts. Automaton has 23268 states and 109159 transitions. Word has length 64 [2025-04-13 18:05:24,217 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:05:24,218 INFO L485 AbstractCegarLoop]: Abstraction has 23268 states and 109159 transitions. [2025-04-13 18:05:24,218 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:05:24,218 INFO L278 IsEmpty]: Start isEmpty. Operand 23268 states and 109159 transitions. [2025-04-13 18:05:24,260 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:05:24,261 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:05:24,261 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:05:24,261 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2025-04-13 18:05:24,261 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:05:24,261 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:05:24,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1778337435, now seen corresponding path program 50 times [2025-04-13 18:05:24,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:05:24,261 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907052059] [2025-04-13 18:05:24,261 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 18:05:24,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:05:24,265 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:05:24,268 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:05:24,268 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 18:05:24,268 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:05:24,580 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 18:05:24,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:05:24,581 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907052059] [2025-04-13 18:05:24,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907052059] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:05:24,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:05:24,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-04-13 18:05:24,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829006940] [2025-04-13 18:05:24,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:05:24,581 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-04-13 18:05:24,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:05:24,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-04-13 18:05:24,581 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2025-04-13 18:05:24,581 INFO L87 Difference]: Start difference. First operand 23268 states and 109159 transitions. Second operand has 15 states, 14 states have (on average 4.571428571428571) internal successors, (64), 15 states have internal predecessors, (64), 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 18:05:26,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:05:26,193 INFO L93 Difference]: Finished difference Result 29847 states and 139950 transitions. [2025-04-13 18:05:26,193 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-04-13 18:05:26,193 INFO L79 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.571428571428571) internal successors, (64), 15 states have internal predecessors, (64), 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 64 [2025-04-13 18:05:26,193 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:05:26,338 INFO L225 Difference]: With dead ends: 29847 [2025-04-13 18:05:26,338 INFO L226 Difference]: Without dead ends: 28882 [2025-04-13 18:05:26,351 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=220, Invalid=1850, Unknown=0, NotChecked=0, Total=2070 [2025-04-13 18:05:26,351 INFO L437 NwaCegarLoop]: 102 mSDtfsCounter, 508 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 4451 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 4460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 4451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-04-13 18:05:26,351 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 682 Invalid, 4460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 4451 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-04-13 18:05:26,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28882 states. [2025-04-13 18:05:26,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28882 to 23202. [2025-04-13 18:05:26,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23202 states, 23201 states have (on average 4.690573682168872) internal successors, (108826), 23201 states have internal predecessors, (108826), 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 18:05:26,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23202 states to 23202 states and 108826 transitions. [2025-04-13 18:05:27,037 INFO L79 Accepts]: Start accepts. Automaton has 23202 states and 108826 transitions. Word has length 64 [2025-04-13 18:05:27,038 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:05:27,038 INFO L485 AbstractCegarLoop]: Abstraction has 23202 states and 108826 transitions. [2025-04-13 18:05:27,038 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.571428571428571) internal successors, (64), 15 states have internal predecessors, (64), 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 18:05:27,038 INFO L278 IsEmpty]: Start isEmpty. Operand 23202 states and 108826 transitions. [2025-04-13 18:05:27,082 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:05:27,082 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:05:27,082 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:05:27,082 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2025-04-13 18:05:27,082 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:05:27,083 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:05:27,083 INFO L85 PathProgramCache]: Analyzing trace with hash -522573801, now seen corresponding path program 51 times [2025-04-13 18:05:27,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:05:27,083 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847539998] [2025-04-13 18:05:27,083 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-13 18:05:27,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:05:27,190 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:05:27,192 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:05:27,192 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-13 18:05:27,192 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:05:27,394 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 18:05:27,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:05:27,394 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847539998] [2025-04-13 18:05:27,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847539998] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:05:27,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:05:27,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-04-13 18:05:27,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752668488] [2025-04-13 18:05:27,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:05:27,395 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-13 18:05:27,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:05:27,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-13 18:05:27,395 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2025-04-13 18:05:27,395 INFO L87 Difference]: Start difference. First operand 23202 states and 108826 transitions. Second operand has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:05:29,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:05:29,056 INFO L93 Difference]: Finished difference Result 28268 states and 131740 transitions. [2025-04-13 18:05:29,057 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2025-04-13 18:05:29,057 INFO L79 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 64 [2025-04-13 18:05:29,057 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:05:29,186 INFO L225 Difference]: With dead ends: 28268 [2025-04-13 18:05:29,186 INFO L226 Difference]: Without dead ends: 27841 [2025-04-13 18:05:29,194 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=221, Invalid=2035, Unknown=0, NotChecked=0, Total=2256 [2025-04-13 18:05:29,195 INFO L437 NwaCegarLoop]: 68 mSDtfsCounter, 643 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 4281 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 4287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-04-13 18:05:29,195 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [643 Valid, 716 Invalid, 4287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4281 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-04-13 18:05:29,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27841 states. [2025-04-13 18:05:29,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27841 to 23242. [2025-04-13 18:05:29,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23242 states, 23241 states have (on average 4.688868809431608) internal successors, (108974), 23241 states have internal predecessors, (108974), 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 18:05:29,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23242 states to 23242 states and 108974 transitions. [2025-04-13 18:05:29,733 INFO L79 Accepts]: Start accepts. Automaton has 23242 states and 108974 transitions. Word has length 64 [2025-04-13 18:05:29,733 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:05:29,733 INFO L485 AbstractCegarLoop]: Abstraction has 23242 states and 108974 transitions. [2025-04-13 18:05:29,733 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:05:29,733 INFO L278 IsEmpty]: Start isEmpty. Operand 23242 states and 108974 transitions. [2025-04-13 18:05:29,776 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:05:29,777 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:05:29,777 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:05:29,777 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2025-04-13 18:05:29,777 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:05:29,777 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:05:29,777 INFO L85 PathProgramCache]: Analyzing trace with hash -903234459, now seen corresponding path program 52 times [2025-04-13 18:05:29,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:05:29,777 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221707994] [2025-04-13 18:05:29,777 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-13 18:05:29,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:05:29,781 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 64 statements into 2 equivalence classes. [2025-04-13 18:05:29,785 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:05:29,785 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-13 18:05:29,785 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:05:30,036 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 18:05:30,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:05:30,036 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221707994] [2025-04-13 18:05:30,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221707994] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:05:30,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:05:30,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-04-13 18:05:30,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141602097] [2025-04-13 18:05:30,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:05:30,036 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-04-13 18:05:30,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:05:30,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-04-13 18:05:30,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2025-04-13 18:05:30,037 INFO L87 Difference]: Start difference. First operand 23242 states and 108974 transitions. Second operand has 15 states, 14 states have (on average 4.571428571428571) internal successors, (64), 15 states have internal predecessors, (64), 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 18:05:31,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:05:31,981 INFO L93 Difference]: Finished difference Result 28103 states and 131599 transitions. [2025-04-13 18:05:31,982 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-04-13 18:05:31,982 INFO L79 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.571428571428571) internal successors, (64), 15 states have internal predecessors, (64), 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 64 [2025-04-13 18:05:31,982 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:05:32,352 INFO L225 Difference]: With dead ends: 28103 [2025-04-13 18:05:32,353 INFO L226 Difference]: Without dead ends: 26748 [2025-04-13 18:05:32,361 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=166, Invalid=1394, Unknown=0, NotChecked=0, Total=1560 [2025-04-13 18:05:32,365 INFO L437 NwaCegarLoop]: 98 mSDtfsCounter, 439 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 4082 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 4086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 4082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-04-13 18:05:32,365 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 641 Invalid, 4086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 4082 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-04-13 18:05:32,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26748 states. [2025-04-13 18:05:32,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26748 to 23170. [2025-04-13 18:05:32,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23170 states, 23169 states have (on average 4.689973671716518) internal successors, (108662), 23169 states have internal predecessors, (108662), 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 18:05:33,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23170 states to 23170 states and 108662 transitions. [2025-04-13 18:05:33,184 INFO L79 Accepts]: Start accepts. Automaton has 23170 states and 108662 transitions. Word has length 64 [2025-04-13 18:05:33,184 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:05:33,184 INFO L485 AbstractCegarLoop]: Abstraction has 23170 states and 108662 transitions. [2025-04-13 18:05:33,184 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.571428571428571) internal successors, (64), 15 states have internal predecessors, (64), 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 18:05:33,185 INFO L278 IsEmpty]: Start isEmpty. Operand 23170 states and 108662 transitions. [2025-04-13 18:05:33,241 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:05:33,242 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:05:33,242 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:05:33,242 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2025-04-13 18:05:33,242 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:05:33,243 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:05:33,243 INFO L85 PathProgramCache]: Analyzing trace with hash 951797975, now seen corresponding path program 53 times [2025-04-13 18:05:33,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:05:33,243 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924368512] [2025-04-13 18:05:33,243 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-13 18:05:33,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:05:33,248 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:05:33,251 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:05:33,251 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 18:05:33,251 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:05:33,487 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 18:05:33,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:05:33,488 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924368512] [2025-04-13 18:05:33,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924368512] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:05:33,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:05:33,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-04-13 18:05:33,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194894780] [2025-04-13 18:05:33,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:05:33,488 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-13 18:05:33,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:05:33,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-13 18:05:33,492 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2025-04-13 18:05:33,493 INFO L87 Difference]: Start difference. First operand 23170 states and 108662 transitions. Second operand has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:05:35,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:05:35,734 INFO L93 Difference]: Finished difference Result 27865 states and 130110 transitions. [2025-04-13 18:05:35,734 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-04-13 18:05:35,734 INFO L79 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 64 [2025-04-13 18:05:35,734 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:05:35,881 INFO L225 Difference]: With dead ends: 27865 [2025-04-13 18:05:35,881 INFO L226 Difference]: Without dead ends: 27427 [2025-04-13 18:05:35,895 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=231, Invalid=2121, Unknown=0, NotChecked=0, Total=2352 [2025-04-13 18:05:35,895 INFO L437 NwaCegarLoop]: 68 mSDtfsCounter, 656 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 4276 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 4283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 4276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-04-13 18:05:35,895 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 713 Invalid, 4283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 4276 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-04-13 18:05:35,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27427 states. [2025-04-13 18:05:36,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27427 to 23130. [2025-04-13 18:05:36,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23130 states, 23129 states have (on average 4.690821047170219) internal successors, (108494), 23129 states have internal predecessors, (108494), 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 18:05:36,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23130 states to 23130 states and 108494 transitions. [2025-04-13 18:05:36,724 INFO L79 Accepts]: Start accepts. Automaton has 23130 states and 108494 transitions. Word has length 64 [2025-04-13 18:05:36,724 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:05:36,724 INFO L485 AbstractCegarLoop]: Abstraction has 23130 states and 108494 transitions. [2025-04-13 18:05:36,724 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:05:36,724 INFO L278 IsEmpty]: Start isEmpty. Operand 23130 states and 108494 transitions. [2025-04-13 18:05:36,798 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:05:36,798 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:05:36,799 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:05:36,799 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2025-04-13 18:05:36,799 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:05:36,799 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:05:36,799 INFO L85 PathProgramCache]: Analyzing trace with hash -405990647, now seen corresponding path program 54 times [2025-04-13 18:05:36,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:05:36,799 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872476450] [2025-04-13 18:05:36,799 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-13 18:05:36,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:05:36,807 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:05:36,810 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:05:36,810 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-04-13 18:05:36,810 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:05:37,313 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 18:05:37,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:05:37,314 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872476450] [2025-04-13 18:05:37,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872476450] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:05:37,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:05:37,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-04-13 18:05:37,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945516878] [2025-04-13 18:05:37,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:05:37,314 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-04-13 18:05:37,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:05:37,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-04-13 18:05:37,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2025-04-13 18:05:37,315 INFO L87 Difference]: Start difference. First operand 23130 states and 108494 transitions. Second operand has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:05:39,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:05:39,655 INFO L93 Difference]: Finished difference Result 27369 states and 128766 transitions. [2025-04-13 18:05:39,655 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2025-04-13 18:05:39,655 INFO L79 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 64 [2025-04-13 18:05:39,655 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:05:39,809 INFO L225 Difference]: With dead ends: 27369 [2025-04-13 18:05:39,810 INFO L226 Difference]: Without dead ends: 26817 [2025-04-13 18:05:39,819 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 563 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=253, Invalid=2297, Unknown=0, NotChecked=0, Total=2550 [2025-04-13 18:05:39,820 INFO L437 NwaCegarLoop]: 97 mSDtfsCounter, 477 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 4776 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 4786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 4776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-04-13 18:05:39,820 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 648 Invalid, 4786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 4776 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-04-13 18:05:39,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26817 states. [2025-04-13 18:05:40,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26817 to 23200. [2025-04-13 18:05:40,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23200 states, 23199 states have (on average 4.689555584292426) internal successors, (108793), 23199 states have internal predecessors, (108793), 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 18:05:40,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23200 states to 23200 states and 108793 transitions. [2025-04-13 18:05:40,714 INFO L79 Accepts]: Start accepts. Automaton has 23200 states and 108793 transitions. Word has length 64 [2025-04-13 18:05:40,714 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:05:40,714 INFO L485 AbstractCegarLoop]: Abstraction has 23200 states and 108793 transitions. [2025-04-13 18:05:40,714 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:05:40,714 INFO L278 IsEmpty]: Start isEmpty. Operand 23200 states and 108793 transitions. [2025-04-13 18:05:40,769 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:05:40,769 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:05:40,769 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:05:40,769 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2025-04-13 18:05:40,770 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:05:40,771 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:05:40,771 INFO L85 PathProgramCache]: Analyzing trace with hash -818574155, now seen corresponding path program 55 times [2025-04-13 18:05:40,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:05:40,771 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214449019] [2025-04-13 18:05:40,771 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-13 18:05:40,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:05:40,775 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:05:40,778 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:05:40,778 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 18:05:40,778 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:05:41,074 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 18:05:41,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:05:41,074 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214449019] [2025-04-13 18:05:41,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214449019] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:05:41,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:05:41,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-04-13 18:05:41,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450309474] [2025-04-13 18:05:41,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:05:41,075 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-13 18:05:41,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:05:41,075 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-13 18:05:41,075 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2025-04-13 18:05:41,075 INFO L87 Difference]: Start difference. First operand 23200 states and 108793 transitions. Second operand has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:05:43,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:05:43,442 INFO L93 Difference]: Finished difference Result 28269 states and 131727 transitions. [2025-04-13 18:05:43,442 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-04-13 18:05:43,442 INFO L79 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 64 [2025-04-13 18:05:43,442 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:05:43,611 INFO L225 Difference]: With dead ends: 28269 [2025-04-13 18:05:43,611 INFO L226 Difference]: Without dead ends: 27847 [2025-04-13 18:05:43,627 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=231, Invalid=2121, Unknown=0, NotChecked=0, Total=2352 [2025-04-13 18:05:43,632 INFO L437 NwaCegarLoop]: 68 mSDtfsCounter, 656 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 4268 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 4274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-04-13 18:05:43,632 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 712 Invalid, 4274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4268 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-04-13 18:05:43,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27847 states. [2025-04-13 18:05:44,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27847 to 23248. [2025-04-13 18:05:44,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23248 states, 23247 states have (on average 4.687443541102078) internal successors, (108969), 23247 states have internal predecessors, (108969), 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 18:05:44,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23248 states to 23248 states and 108969 transitions. [2025-04-13 18:05:44,515 INFO L79 Accepts]: Start accepts. Automaton has 23248 states and 108969 transitions. Word has length 64 [2025-04-13 18:05:44,515 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:05:44,515 INFO L485 AbstractCegarLoop]: Abstraction has 23248 states and 108969 transitions. [2025-04-13 18:05:44,515 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:05:44,515 INFO L278 IsEmpty]: Start isEmpty. Operand 23248 states and 108969 transitions. [2025-04-13 18:05:44,569 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:05:44,569 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:05:44,569 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:05:44,569 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2025-04-13 18:05:44,569 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:05:44,570 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:05:44,570 INFO L85 PathProgramCache]: Analyzing trace with hash 465590187, now seen corresponding path program 56 times [2025-04-13 18:05:44,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:05:44,570 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764009805] [2025-04-13 18:05:44,570 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 18:05:44,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:05:44,574 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:05:44,576 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:05:44,577 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 18:05:44,577 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:05:45,066 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 18:05:45,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:05:45,066 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764009805] [2025-04-13 18:05:45,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764009805] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:05:45,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:05:45,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-04-13 18:05:45,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350141473] [2025-04-13 18:05:45,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:05:45,071 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-04-13 18:05:45,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:05:45,071 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-04-13 18:05:45,071 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2025-04-13 18:05:45,071 INFO L87 Difference]: Start difference. First operand 23248 states and 108969 transitions. Second operand has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:05:47,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:05:47,680 INFO L93 Difference]: Finished difference Result 29650 states and 139229 transitions. [2025-04-13 18:05:47,681 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2025-04-13 18:05:47,681 INFO L79 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 64 [2025-04-13 18:05:47,681 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:05:47,847 INFO L225 Difference]: With dead ends: 29650 [2025-04-13 18:05:47,847 INFO L226 Difference]: Without dead ends: 29223 [2025-04-13 18:05:47,860 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 851 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=339, Invalid=3083, Unknown=0, NotChecked=0, Total=3422 [2025-04-13 18:05:47,861 INFO L437 NwaCegarLoop]: 108 mSDtfsCounter, 557 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 5411 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 5426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 5411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-04-13 18:05:47,861 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [557 Valid, 725 Invalid, 5426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 5411 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-04-13 18:05:47,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29223 states. [2025-04-13 18:05:48,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29223 to 23298. [2025-04-13 18:05:48,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23298 states, 23297 states have (on average 4.685753530497489) internal successors, (109164), 23297 states have internal predecessors, (109164), 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 18:05:48,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23298 states to 23298 states and 109164 transitions. [2025-04-13 18:05:48,667 INFO L79 Accepts]: Start accepts. Automaton has 23298 states and 109164 transitions. Word has length 64 [2025-04-13 18:05:48,667 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:05:48,667 INFO L485 AbstractCegarLoop]: Abstraction has 23298 states and 109164 transitions. [2025-04-13 18:05:48,667 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:05:48,667 INFO L278 IsEmpty]: Start isEmpty. Operand 23298 states and 109164 transitions. [2025-04-13 18:05:48,719 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:05:48,719 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:05:48,719 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:05:48,719 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2025-04-13 18:05:48,719 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:05:48,720 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:05:48,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1981714583, now seen corresponding path program 57 times [2025-04-13 18:05:48,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:05:48,720 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838447360] [2025-04-13 18:05:48,720 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-13 18:05:48,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:05:48,725 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:05:48,727 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:05:48,728 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-13 18:05:48,728 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:05:48,993 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 18:05:48,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:05:48,993 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838447360] [2025-04-13 18:05:48,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838447360] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:05:48,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:05:48,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-04-13 18:05:48,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075391917] [2025-04-13 18:05:48,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:05:48,993 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-13 18:05:48,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:05:48,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-13 18:05:48,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2025-04-13 18:05:48,994 INFO L87 Difference]: Start difference. First operand 23298 states and 109164 transitions. Second operand has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:05:51,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:05:51,359 INFO L93 Difference]: Finished difference Result 27993 states and 130612 transitions. [2025-04-13 18:05:51,359 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2025-04-13 18:05:51,359 INFO L79 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 64 [2025-04-13 18:05:51,359 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:05:51,766 INFO L225 Difference]: With dead ends: 27993 [2025-04-13 18:05:51,767 INFO L226 Difference]: Without dead ends: 27527 [2025-04-13 18:05:51,774 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 474 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=241, Invalid=2209, Unknown=0, NotChecked=0, Total=2450 [2025-04-13 18:05:51,774 INFO L437 NwaCegarLoop]: 68 mSDtfsCounter, 684 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 4274 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 4281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 4274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-04-13 18:05:51,774 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [684 Valid, 710 Invalid, 4281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 4274 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-04-13 18:05:51,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27527 states. [2025-04-13 18:05:52,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27527 to 23230. [2025-04-13 18:05:52,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23230 states, 23229 states have (on average 4.688277584054415) internal successors, (108904), 23229 states have internal predecessors, (108904), 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 18:05:52,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23230 states to 23230 states and 108904 transitions. [2025-04-13 18:05:52,638 INFO L79 Accepts]: Start accepts. Automaton has 23230 states and 108904 transitions. Word has length 64 [2025-04-13 18:05:52,638 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:05:52,638 INFO L485 AbstractCegarLoop]: Abstraction has 23230 states and 108904 transitions. [2025-04-13 18:05:52,638 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:05:52,638 INFO L278 IsEmpty]: Start isEmpty. Operand 23230 states and 108904 transitions. [2025-04-13 18:05:52,694 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:05:52,695 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:05:52,695 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:05:52,695 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2025-04-13 18:05:52,695 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:05:52,695 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:05:52,695 INFO L85 PathProgramCache]: Analyzing trace with hash 426786731, now seen corresponding path program 58 times [2025-04-13 18:05:52,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:05:52,695 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546907819] [2025-04-13 18:05:52,695 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-13 18:05:52,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:05:52,702 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 64 statements into 2 equivalence classes. [2025-04-13 18:05:52,710 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:05:52,710 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-13 18:05:52,710 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:05:53,036 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 18:05:53,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:05:53,037 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546907819] [2025-04-13 18:05:53,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546907819] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:05:53,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:05:53,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-04-13 18:05:53,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861444290] [2025-04-13 18:05:53,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:05:53,037 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-04-13 18:05:53,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:05:53,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-04-13 18:05:53,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2025-04-13 18:05:53,038 INFO L87 Difference]: Start difference. First operand 23230 states and 108904 transitions. Second operand has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:05:55,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:05:55,629 INFO L93 Difference]: Finished difference Result 29155 states and 137345 transitions. [2025-04-13 18:05:55,629 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2025-04-13 18:05:55,629 INFO L79 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 64 [2025-04-13 18:05:55,629 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:05:55,789 INFO L225 Difference]: With dead ends: 29155 [2025-04-13 18:05:55,789 INFO L226 Difference]: Without dead ends: 28633 [2025-04-13 18:05:55,803 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 732 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=312, Invalid=2768, Unknown=0, NotChecked=0, Total=3080 [2025-04-13 18:05:55,804 INFO L437 NwaCegarLoop]: 115 mSDtfsCounter, 514 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 5557 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 5572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 5557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-04-13 18:05:55,804 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [514 Valid, 777 Invalid, 5572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 5557 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-04-13 18:05:55,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28633 states. [2025-04-13 18:05:56,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28633 to 23130. [2025-04-13 18:05:56,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23130 states, 23129 states have (on average 4.690821047170219) internal successors, (108494), 23129 states have internal predecessors, (108494), 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 18:05:56,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23130 states to 23130 states and 108494 transitions. [2025-04-13 18:05:56,808 INFO L79 Accepts]: Start accepts. Automaton has 23130 states and 108494 transitions. Word has length 64 [2025-04-13 18:05:56,808 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:05:56,808 INFO L485 AbstractCegarLoop]: Abstraction has 23130 states and 108494 transitions. [2025-04-13 18:05:56,808 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:05:56,808 INFO L278 IsEmpty]: Start isEmpty. Operand 23130 states and 108494 transitions. [2025-04-13 18:05:56,859 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:05:56,859 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:05:56,859 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:05:56,859 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2025-04-13 18:05:56,859 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:05:56,860 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:05:56,860 INFO L85 PathProgramCache]: Analyzing trace with hash 684297349, now seen corresponding path program 59 times [2025-04-13 18:05:56,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:05:56,860 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857286548] [2025-04-13 18:05:56,860 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-13 18:05:56,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:05:56,865 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:05:56,868 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:05:56,868 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 18:05:56,868 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:05:57,367 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 18:05:57,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:05:57,367 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857286548] [2025-04-13 18:05:57,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857286548] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:05:57,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:05:57,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-04-13 18:05:57,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414029096] [2025-04-13 18:05:57,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:05:57,368 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-13 18:05:57,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:05:57,368 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-13 18:05:57,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2025-04-13 18:05:57,368 INFO L87 Difference]: Start difference. First operand 23130 states and 108494 transitions. Second operand has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:05:59,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:05:59,590 INFO L93 Difference]: Finished difference Result 27307 states and 127880 transitions. [2025-04-13 18:05:59,590 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2025-04-13 18:05:59,590 INFO L79 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 64 [2025-04-13 18:05:59,591 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:05:59,749 INFO L225 Difference]: With dead ends: 27307 [2025-04-13 18:05:59,749 INFO L226 Difference]: Without dead ends: 26880 [2025-04-13 18:05:59,760 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 386 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=213, Invalid=1949, Unknown=0, NotChecked=0, Total=2162 [2025-04-13 18:05:59,760 INFO L437 NwaCegarLoop]: 69 mSDtfsCounter, 585 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 4291 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 4297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-04-13 18:05:59,760 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [585 Valid, 716 Invalid, 4297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4291 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-04-13 18:05:59,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26880 states. [2025-04-13 18:06:00,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26880 to 23210. [2025-04-13 18:06:00,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23210 states, 23209 states have (on average 4.689129217114051) internal successors, (108830), 23209 states have internal predecessors, (108830), 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 18:06:00,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23210 states to 23210 states and 108830 transitions. [2025-04-13 18:06:00,643 INFO L79 Accepts]: Start accepts. Automaton has 23210 states and 108830 transitions. Word has length 64 [2025-04-13 18:06:00,644 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:06:00,644 INFO L485 AbstractCegarLoop]: Abstraction has 23210 states and 108830 transitions. [2025-04-13 18:06:00,644 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:06:00,644 INFO L278 IsEmpty]: Start isEmpty. Operand 23210 states and 108830 transitions. [2025-04-13 18:06:00,694 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:06:00,694 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:06:00,694 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:06:00,694 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2025-04-13 18:06:00,694 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:06:00,695 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:06:00,695 INFO L85 PathProgramCache]: Analyzing trace with hash 2021959275, now seen corresponding path program 60 times [2025-04-13 18:06:00,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:06:00,696 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246141028] [2025-04-13 18:06:00,696 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-13 18:06:00,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:06:00,700 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:06:00,703 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:06:00,703 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-04-13 18:06:00,703 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:06:00,920 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 18:06:00,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:06:00,921 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246141028] [2025-04-13 18:06:00,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246141028] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:06:00,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:06:00,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-04-13 18:06:00,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362141537] [2025-04-13 18:06:00,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:06:00,921 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-04-13 18:06:00,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:06:00,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-04-13 18:06:00,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2025-04-13 18:06:00,921 INFO L87 Difference]: Start difference. First operand 23210 states and 108830 transitions. Second operand has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:06:02,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:06:02,921 INFO L93 Difference]: Finished difference Result 26133 states and 122833 transitions. [2025-04-13 18:06:02,921 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-04-13 18:06:02,921 INFO L79 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 64 [2025-04-13 18:06:02,921 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:06:03,072 INFO L225 Difference]: With dead ends: 26133 [2025-04-13 18:06:03,072 INFO L226 Difference]: Without dead ends: 25581 [2025-04-13 18:06:03,085 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=184, Invalid=1538, Unknown=0, NotChecked=0, Total=1722 [2025-04-13 18:06:03,086 INFO L437 NwaCegarLoop]: 75 mSDtfsCounter, 406 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 3837 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 3843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 3837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-04-13 18:06:03,086 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 516 Invalid, 3843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 3837 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-04-13 18:06:03,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25581 states. [2025-04-13 18:06:03,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25581 to 23250. [2025-04-13 18:06:03,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23250 states, 23249 states have (on average 4.687427416232956) internal successors, (108978), 23249 states have internal predecessors, (108978), 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 18:06:03,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23250 states to 23250 states and 108978 transitions. [2025-04-13 18:06:03,940 INFO L79 Accepts]: Start accepts. Automaton has 23250 states and 108978 transitions. Word has length 64 [2025-04-13 18:06:03,940 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:06:03,940 INFO L485 AbstractCegarLoop]: Abstraction has 23250 states and 108978 transitions. [2025-04-13 18:06:03,940 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:06:03,940 INFO L278 IsEmpty]: Start isEmpty. Operand 23250 states and 108978 transitions. [2025-04-13 18:06:03,991 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:06:03,991 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:06:03,992 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:06:03,992 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2025-04-13 18:06:03,992 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:06:03,992 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:06:03,992 INFO L85 PathProgramCache]: Analyzing trace with hash -2136298171, now seen corresponding path program 61 times [2025-04-13 18:06:03,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:06:03,992 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649355062] [2025-04-13 18:06:03,992 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-13 18:06:03,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:06:03,996 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:06:03,999 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:06:03,999 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 18:06:03,999 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:06:04,551 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 18:06:04,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:06:04,552 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649355062] [2025-04-13 18:06:04,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649355062] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:06:04,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:06:04,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-04-13 18:06:04,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565982022] [2025-04-13 18:06:04,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:06:04,552 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-13 18:06:04,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:06:04,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-13 18:06:04,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2025-04-13 18:06:04,553 INFO L87 Difference]: Start difference. First operand 23250 states and 108978 transitions. Second operand has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:06:06,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:06:06,486 INFO L93 Difference]: Finished difference Result 27318 states and 127848 transitions. [2025-04-13 18:06:06,486 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2025-04-13 18:06:06,486 INFO L79 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 64 [2025-04-13 18:06:06,486 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:06:06,892 INFO L225 Difference]: With dead ends: 27318 [2025-04-13 18:06:06,892 INFO L226 Difference]: Without dead ends: 26880 [2025-04-13 18:06:06,899 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=216, Invalid=1946, Unknown=0, NotChecked=0, Total=2162 [2025-04-13 18:06:06,899 INFO L437 NwaCegarLoop]: 69 mSDtfsCounter, 614 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 4170 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 4176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-04-13 18:06:06,899 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 713 Invalid, 4176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4170 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-04-13 18:06:06,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26880 states. [2025-04-13 18:06:07,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26880 to 23210. [2025-04-13 18:06:07,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23210 states, 23209 states have (on average 4.687405747770262) internal successors, (108790), 23209 states have internal predecessors, (108790), 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 18:06:07,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23210 states to 23210 states and 108790 transitions. [2025-04-13 18:06:07,818 INFO L79 Accepts]: Start accepts. Automaton has 23210 states and 108790 transitions. Word has length 64 [2025-04-13 18:06:07,818 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:06:07,818 INFO L485 AbstractCegarLoop]: Abstraction has 23210 states and 108790 transitions. [2025-04-13 18:06:07,818 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:06:07,818 INFO L278 IsEmpty]: Start isEmpty. Operand 23210 states and 108790 transitions. [2025-04-13 18:06:07,885 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:06:07,885 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:06:07,885 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:06:07,885 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2025-04-13 18:06:07,886 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:06:07,886 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:06:07,886 INFO L85 PathProgramCache]: Analyzing trace with hash -695108053, now seen corresponding path program 62 times [2025-04-13 18:06:07,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:06:07,886 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197600984] [2025-04-13 18:06:07,886 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 18:06:07,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:06:07,892 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:06:07,896 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:06:07,896 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 18:06:07,896 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:06:08,165 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 18:06:08,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:06:08,166 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197600984] [2025-04-13 18:06:08,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197600984] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:06:08,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:06:08,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-04-13 18:06:08,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518296548] [2025-04-13 18:06:08,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:06:08,166 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-04-13 18:06:08,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:06:08,167 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-04-13 18:06:08,167 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2025-04-13 18:06:08,167 INFO L87 Difference]: Start difference. First operand 23210 states and 108790 transitions. Second operand has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:06:10,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:06:10,178 INFO L93 Difference]: Finished difference Result 26104 states and 122653 transitions. [2025-04-13 18:06:10,178 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-04-13 18:06:10,178 INFO L79 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 64 [2025-04-13 18:06:10,178 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:06:10,331 INFO L225 Difference]: With dead ends: 26104 [2025-04-13 18:06:10,331 INFO L226 Difference]: Without dead ends: 25501 [2025-04-13 18:06:10,344 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=190, Invalid=1616, Unknown=0, NotChecked=0, Total=1806 [2025-04-13 18:06:10,344 INFO L437 NwaCegarLoop]: 74 mSDtfsCounter, 449 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 3882 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 3888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 3882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-04-13 18:06:10,344 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 523 Invalid, 3888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 3882 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-04-13 18:06:10,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25501 states. [2025-04-13 18:06:11,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25501 to 23170. [2025-04-13 18:06:11,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23170 states, 23169 states have (on average 4.68824722689801) internal successors, (108622), 23169 states have internal predecessors, (108622), 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 18:06:11,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23170 states to 23170 states and 108622 transitions. [2025-04-13 18:06:11,271 INFO L79 Accepts]: Start accepts. Automaton has 23170 states and 108622 transitions. Word has length 64 [2025-04-13 18:06:11,272 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:06:11,272 INFO L485 AbstractCegarLoop]: Abstraction has 23170 states and 108622 transitions. [2025-04-13 18:06:11,272 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:06:11,272 INFO L278 IsEmpty]: Start isEmpty. Operand 23170 states and 108622 transitions. [2025-04-13 18:06:11,329 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:06:11,330 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:06:11,330 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:06:11,330 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2025-04-13 18:06:11,330 INFO L403 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:06:11,330 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:06:11,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1939211467, now seen corresponding path program 63 times [2025-04-13 18:06:11,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:06:11,331 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167423680] [2025-04-13 18:06:11,331 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-13 18:06:11,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:06:11,337 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:06:11,340 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:06:11,341 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-13 18:06:11,341 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:06:11,610 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 18:06:11,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:06:11,610 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167423680] [2025-04-13 18:06:11,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167423680] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:06:11,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:06:11,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-04-13 18:06:11,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854259210] [2025-04-13 18:06:11,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:06:11,610 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-13 18:06:11,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:06:11,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-13 18:06:11,611 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2025-04-13 18:06:11,611 INFO L87 Difference]: Start difference. First operand 23170 states and 108622 transitions. Second operand has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:06:14,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:06:14,060 INFO L93 Difference]: Finished difference Result 28084 states and 131912 transitions. [2025-04-13 18:06:14,060 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-04-13 18:06:14,060 INFO L79 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 64 [2025-04-13 18:06:14,060 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:06:14,243 INFO L225 Difference]: With dead ends: 28084 [2025-04-13 18:06:14,243 INFO L226 Difference]: Without dead ends: 27550 [2025-04-13 18:06:14,257 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 603 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=270, Invalid=2592, Unknown=0, NotChecked=0, Total=2862 [2025-04-13 18:06:14,258 INFO L437 NwaCegarLoop]: 76 mSDtfsCounter, 687 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 4705 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 786 SdHoareTripleChecker+Invalid, 4718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 4705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-04-13 18:06:14,258 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [687 Valid, 786 Invalid, 4718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 4705 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-04-13 18:06:14,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27550 states. [2025-04-13 18:06:15,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27550 to 23190. [2025-04-13 18:06:15,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23190 states, 23189 states have (on average 4.687826124455561) internal successors, (108706), 23189 states have internal predecessors, (108706), 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 18:06:15,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23190 states to 23190 states and 108706 transitions. [2025-04-13 18:06:15,245 INFO L79 Accepts]: Start accepts. Automaton has 23190 states and 108706 transitions. Word has length 64 [2025-04-13 18:06:15,245 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:06:15,245 INFO L485 AbstractCegarLoop]: Abstraction has 23190 states and 108706 transitions. [2025-04-13 18:06:15,246 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:06:15,246 INFO L278 IsEmpty]: Start isEmpty. Operand 23190 states and 108706 transitions. [2025-04-13 18:06:15,301 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:06:15,302 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:06:15,302 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:06:15,302 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2025-04-13 18:06:15,302 INFO L403 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:06:15,303 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:06:15,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1543024051, now seen corresponding path program 64 times [2025-04-13 18:06:15,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:06:15,303 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563060834] [2025-04-13 18:06:15,303 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-13 18:06:15,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:06:15,312 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 64 statements into 2 equivalence classes. [2025-04-13 18:06:15,317 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:06:15,318 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-13 18:06:15,318 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:06:15,923 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 18:06:15,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:06:15,924 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563060834] [2025-04-13 18:06:15,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563060834] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:06:15,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:06:15,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-04-13 18:06:15,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371088722] [2025-04-13 18:06:15,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:06:15,925 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-04-13 18:06:15,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:06:15,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-04-13 18:06:15,926 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2025-04-13 18:06:15,926 INFO L87 Difference]: Start difference. First operand 23190 states and 108706 transitions. Second operand has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:06:18,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:06:18,106 INFO L93 Difference]: Finished difference Result 27899 states and 130874 transitions. [2025-04-13 18:06:18,106 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2025-04-13 18:06:18,106 INFO L79 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 64 [2025-04-13 18:06:18,106 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:06:18,266 INFO L225 Difference]: With dead ends: 27899 [2025-04-13 18:06:18,266 INFO L226 Difference]: Without dead ends: 27472 [2025-04-13 18:06:18,279 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=238, Invalid=2018, Unknown=0, NotChecked=0, Total=2256 [2025-04-13 18:06:18,279 INFO L437 NwaCegarLoop]: 83 mSDtfsCounter, 596 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 4014 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 4024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 4014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-04-13 18:06:18,282 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [596 Valid, 593 Invalid, 4024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 4014 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-04-13 18:06:18,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27472 states. [2025-04-13 18:06:18,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27472 to 23260. [2025-04-13 18:06:19,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23260 states, 23259 states have (on average 4.686572939507288) internal successors, (109005), 23259 states have internal predecessors, (109005), 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 18:06:19,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23260 states to 23260 states and 109005 transitions. [2025-04-13 18:06:19,143 INFO L79 Accepts]: Start accepts. Automaton has 23260 states and 109005 transitions. Word has length 64 [2025-04-13 18:06:19,144 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:06:19,144 INFO L485 AbstractCegarLoop]: Abstraction has 23260 states and 109005 transitions. [2025-04-13 18:06:19,144 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:06:19,144 INFO L278 IsEmpty]: Start isEmpty. Operand 23260 states and 109005 transitions. [2025-04-13 18:06:19,197 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:06:19,198 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:06:19,198 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:06:19,198 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2025-04-13 18:06:19,198 INFO L403 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:06:19,198 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:06:19,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1995800011, now seen corresponding path program 65 times [2025-04-13 18:06:19,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:06:19,198 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027706726] [2025-04-13 18:06:19,199 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-13 18:06:19,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:06:19,203 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:06:19,210 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:06:19,210 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 18:06:19,210 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:06:19,489 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 18:06:19,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:06:19,489 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027706726] [2025-04-13 18:06:19,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027706726] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:06:19,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:06:19,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-04-13 18:06:19,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385035307] [2025-04-13 18:06:19,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:06:19,490 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-13 18:06:19,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:06:19,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-13 18:06:19,490 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2025-04-13 18:06:19,491 INFO L87 Difference]: Start difference. First operand 23260 states and 109005 transitions. Second operand has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:06:21,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:06:21,681 INFO L93 Difference]: Finished difference Result 27256 states and 127599 transitions. [2025-04-13 18:06:21,682 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-04-13 18:06:21,682 INFO L79 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 64 [2025-04-13 18:06:21,682 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:06:21,836 INFO L225 Difference]: With dead ends: 27256 [2025-04-13 18:06:21,836 INFO L226 Difference]: Without dead ends: 26834 [2025-04-13 18:06:21,856 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=198, Invalid=1782, Unknown=0, NotChecked=0, Total=1980 [2025-04-13 18:06:21,859 INFO L437 NwaCegarLoop]: 69 mSDtfsCounter, 572 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 4174 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 4180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-04-13 18:06:21,860 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 715 Invalid, 4180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4174 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-04-13 18:06:21,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26834 states. [2025-04-13 18:06:22,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26834 to 23356. [2025-04-13 18:06:22,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23356 states, 23355 states have (on average 4.684435880967673) internal successors, (109405), 23355 states have internal predecessors, (109405), 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 18:06:22,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23356 states to 23356 states and 109405 transitions. [2025-04-13 18:06:22,714 INFO L79 Accepts]: Start accepts. Automaton has 23356 states and 109405 transitions. Word has length 64 [2025-04-13 18:06:22,714 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:06:22,714 INFO L485 AbstractCegarLoop]: Abstraction has 23356 states and 109405 transitions. [2025-04-13 18:06:22,714 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:06:22,714 INFO L278 IsEmpty]: Start isEmpty. Operand 23356 states and 109405 transitions. [2025-04-13 18:06:22,777 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:06:22,777 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:06:22,777 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:06:22,777 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2025-04-13 18:06:22,777 INFO L403 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:06:22,778 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:06:22,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1581827507, now seen corresponding path program 66 times [2025-04-13 18:06:22,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:06:22,778 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673950799] [2025-04-13 18:06:22,778 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-13 18:06:22,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:06:22,784 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:06:22,787 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:06:22,787 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-04-13 18:06:22,787 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:06:23,364 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 18:06:23,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:06:23,364 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673950799] [2025-04-13 18:06:23,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673950799] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:06:23,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:06:23,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-04-13 18:06:23,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767384976] [2025-04-13 18:06:23,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:06:23,364 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-04-13 18:06:23,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:06:23,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-04-13 18:06:23,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2025-04-13 18:06:23,365 INFO L87 Difference]: Start difference. First operand 23356 states and 109405 transitions. Second operand has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:06:25,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:06:25,337 INFO L93 Difference]: Finished difference Result 27990 states and 131208 transitions. [2025-04-13 18:06:25,337 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2025-04-13 18:06:25,337 INFO L79 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 64 [2025-04-13 18:06:25,338 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:06:25,859 INFO L225 Difference]: With dead ends: 27990 [2025-04-13 18:06:25,859 INFO L226 Difference]: Without dead ends: 27518 [2025-04-13 18:06:25,868 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=228, Invalid=1934, Unknown=0, NotChecked=0, Total=2162 [2025-04-13 18:06:25,868 INFO L437 NwaCegarLoop]: 83 mSDtfsCounter, 561 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 4040 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 4050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 4040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-04-13 18:06:25,869 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [561 Valid, 589 Invalid, 4050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 4040 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-04-13 18:06:25,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27518 states. [2025-04-13 18:06:26,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27518 to 23306. [2025-04-13 18:06:26,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23306 states, 23305 states have (on average 4.685260673675177) internal successors, (109190), 23305 states have internal predecessors, (109190), 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 18:06:26,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23306 states to 23306 states and 109190 transitions. [2025-04-13 18:06:26,947 INFO L79 Accepts]: Start accepts. Automaton has 23306 states and 109190 transitions. Word has length 64 [2025-04-13 18:06:26,948 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:06:26,948 INFO L485 AbstractCegarLoop]: Abstraction has 23306 states and 109190 transitions. [2025-04-13 18:06:26,948 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 16 states have internal predecessors, (64), 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 18:06:26,948 INFO L278 IsEmpty]: Start isEmpty. Operand 23306 states and 109190 transitions. [2025-04-13 18:06:27,045 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-04-13 18:06:27,045 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:06:27,049 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:06:27,050 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2025-04-13 18:06:27,050 INFO L403 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:06:27,050 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:06:27,050 INFO L85 PathProgramCache]: Analyzing trace with hash 501121453, now seen corresponding path program 67 times [2025-04-13 18:06:27,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:06:27,050 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947892738] [2025-04-13 18:06:27,050 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-13 18:06:27,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:06:27,058 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-04-13 18:06:27,066 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-13 18:06:27,066 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 18:06:27,066 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:06:27,369 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 18:06:27,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:06:27,370 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947892738] [2025-04-13 18:06:27,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947892738] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:06:27,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:06:27,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-04-13 18:06:27,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676772578] [2025-04-13 18:06:27,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:06:27,370 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-13 18:06:27,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:06:27,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-13 18:06:27,370 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2025-04-13 18:06:27,370 INFO L87 Difference]: Start difference. First operand 23306 states and 109190 transitions. Second operand has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 18:06:29,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:06:29,532 INFO L93 Difference]: Finished difference Result 27182 states and 127212 transitions. [2025-04-13 18:06:29,532 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2025-04-13 18:06:29,532 INFO L79 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 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 64 [2025-04-13 18:06:29,532 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:06:29,685 INFO L225 Difference]: With dead ends: 27182 [2025-04-13 18:06:29,685 INFO L226 Difference]: Without dead ends: 26736 [2025-04-13 18:06:29,699 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=200, Invalid=1780, Unknown=0, NotChecked=0, Total=1980 [2025-04-13 18:06:29,700 INFO L437 NwaCegarLoop]: 69 mSDtfsCounter, 621 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 4096 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 4102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-04-13 18:06:29,700 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 713 Invalid, 4102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4096 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-04-13 18:06:29,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26736 states.