./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8ffc122c88e19fa60ea50d5017c7f06bb9f1769c7e82b2428d0bede2356237c3 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 03:57:24,010 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 03:57:24,088 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 03:57:24,095 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 03:57:24,096 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 03:57:24,124 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 03:57:24,124 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 03:57:24,125 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 03:57:24,126 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 03:57:24,127 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 03:57:24,127 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 03:57:24,127 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 03:57:24,128 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 03:57:24,128 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 03:57:24,130 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 03:57:24,131 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 03:57:24,131 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 03:57:24,131 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 03:57:24,131 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 03:57:24,132 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 03:57:24,132 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 03:57:24,135 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 03:57:24,136 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 03:57:24,136 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 03:57:24,136 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 03:57:24,136 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 03:57:24,137 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 03:57:24,137 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 03:57:24,137 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 03:57:24,138 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 03:57:24,138 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 03:57:24,138 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 03:57:24,138 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:57:24,139 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 03:57:24,139 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 03:57:24,140 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 03:57:24,141 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 03:57:24,142 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 03:57:24,142 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 03:57:24,142 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 03:57:24,142 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 03:57:24,143 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 03:57:24,143 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ffc122c88e19fa60ea50d5017c7f06bb9f1769c7e82b2428d0bede2356237c3 [2024-10-14 03:57:24,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 03:57:24,436 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 03:57:24,440 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 03:57:24,441 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 03:57:24,442 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 03:57:24,443 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-10-14 03:57:25,910 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 03:57:26,120 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 03:57:26,121 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-10-14 03:57:26,137 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7733a1df1/925ccf609a56411792deca7eb45d8292/FLAGb9f4f0c26 [2024-10-14 03:57:26,149 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7733a1df1/925ccf609a56411792deca7eb45d8292 [2024-10-14 03:57:26,151 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 03:57:26,152 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 03:57:26,153 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 03:57:26,154 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 03:57:26,158 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 03:57:26,159 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:57:26" (1/1) ... [2024-10-14 03:57:26,160 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b494ec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:57:26, skipping insertion in model container [2024-10-14 03:57:26,160 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:57:26" (1/1) ... [2024-10-14 03:57:26,197 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 03:57:26,447 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[5807,5820] [2024-10-14 03:57:26,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:57:26,510 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 03:57:26,576 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[5807,5820] [2024-10-14 03:57:26,588 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:57:26,611 INFO L204 MainTranslator]: Completed translation [2024-10-14 03:57:26,612 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:57:26 WrapperNode [2024-10-14 03:57:26,612 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 03:57:26,613 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 03:57:26,613 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 03:57:26,613 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 03:57:26,620 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:57:26" (1/1) ... [2024-10-14 03:57:26,629 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:57:26" (1/1) ... [2024-10-14 03:57:26,658 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 452 [2024-10-14 03:57:26,659 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 03:57:26,660 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 03:57:26,660 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 03:57:26,660 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 03:57:26,685 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:57:26" (1/1) ... [2024-10-14 03:57:26,685 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:57:26" (1/1) ... [2024-10-14 03:57:26,691 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:57:26" (1/1) ... [2024-10-14 03:57:26,728 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]. [2024-10-14 03:57:26,728 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:57:26" (1/1) ... [2024-10-14 03:57:26,729 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:57:26" (1/1) ... [2024-10-14 03:57:26,735 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:57:26" (1/1) ... [2024-10-14 03:57:26,741 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:57:26" (1/1) ... [2024-10-14 03:57:26,743 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:57:26" (1/1) ... [2024-10-14 03:57:26,745 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:57:26" (1/1) ... [2024-10-14 03:57:26,754 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 03:57:26,755 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 03:57:26,755 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 03:57:26,755 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 03:57:26,756 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:57:26" (1/1) ... [2024-10-14 03:57:26,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:57:26,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:57:26,792 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) [2024-10-14 03:57:26,799 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 [2024-10-14 03:57:26,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 03:57:26,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 03:57:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 03:57:26,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 03:57:26,966 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 03:57:26,968 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 03:57:27,406 INFO L? ?]: Removed 41 outVars from TransFormulas that were not future-live. [2024-10-14 03:57:27,406 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 03:57:27,448 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 03:57:27,449 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 03:57:27,450 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:57:27 BoogieIcfgContainer [2024-10-14 03:57:27,450 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 03:57:27,453 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 03:57:27,453 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 03:57:27,455 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 03:57:27,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:57:26" (1/3) ... [2024-10-14 03:57:27,456 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ff81ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:57:27, skipping insertion in model container [2024-10-14 03:57:27,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:57:26" (2/3) ... [2024-10-14 03:57:27,457 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ff81ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:57:27, skipping insertion in model container [2024-10-14 03:57:27,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:57:27" (3/3) ... [2024-10-14 03:57:27,458 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-10-14 03:57:27,473 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 03:57:27,473 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 03:57:27,538 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 03:57:27,545 INFO L333 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=PETRI_NET, 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;@39ee998a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 03:57:27,545 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 03:57:27,553 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 95 states have (on average 1.736842105263158) internal successors, (165), 96 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:27,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-14 03:57:27,565 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:27,566 INFO L215 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] [2024-10-14 03:57:27,567 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:27,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:27,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1781186373, now seen corresponding path program 1 times [2024-10-14 03:57:27,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:27,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883922414] [2024-10-14 03:57:27,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:27,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:27,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:28,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:28,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:28,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883922414] [2024-10-14 03:57:28,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883922414] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:28,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:28,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:57:28,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691800609] [2024-10-14 03:57:28,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:28,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:57:28,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:28,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:57:28,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:57:28,090 INFO L87 Difference]: Start difference. First operand has 97 states, 95 states have (on average 1.736842105263158) internal successors, (165), 96 states have internal predecessors, (165), 0 states have call successors, (0), 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 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:28,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:28,155 INFO L93 Difference]: Finished difference Result 217 states and 352 transitions. [2024-10-14 03:57:28,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:57:28,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-10-14 03:57:28,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:28,167 INFO L225 Difference]: With dead ends: 217 [2024-10-14 03:57:28,168 INFO L226 Difference]: Without dead ends: 149 [2024-10-14 03:57:28,170 INFO L431 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 [2024-10-14 03:57:28,173 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 107 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:28,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 329 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:57:28,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-10-14 03:57:28,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 147. [2024-10-14 03:57:28,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 146 states have (on average 1.4657534246575343) internal successors, (214), 146 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:28,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 214 transitions. [2024-10-14 03:57:28,208 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 214 transitions. Word has length 59 [2024-10-14 03:57:28,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:28,209 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 214 transitions. [2024-10-14 03:57:28,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:28,209 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 214 transitions. [2024-10-14 03:57:28,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-14 03:57:28,211 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:28,211 INFO L215 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] [2024-10-14 03:57:28,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 03:57:28,212 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:28,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:28,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1884320944, now seen corresponding path program 1 times [2024-10-14 03:57:28,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:28,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901756824] [2024-10-14 03:57:28,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:28,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:28,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:28,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:28,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:28,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901756824] [2024-10-14 03:57:28,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901756824] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:28,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:28,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:57:28,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709643525] [2024-10-14 03:57:28,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:28,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:57:28,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:28,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:57:28,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:57:28,371 INFO L87 Difference]: Start difference. First operand 147 states and 214 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:28,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:28,436 INFO L93 Difference]: Finished difference Result 359 states and 550 transitions. [2024-10-14 03:57:28,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:57:28,437 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-10-14 03:57:28,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:28,441 INFO L225 Difference]: With dead ends: 359 [2024-10-14 03:57:28,442 INFO L226 Difference]: Without dead ends: 245 [2024-10-14 03:57:28,442 INFO L431 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 [2024-10-14 03:57:28,443 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 78 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:28,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 285 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:57:28,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-10-14 03:57:28,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 243. [2024-10-14 03:57:28,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 242 states have (on average 1.512396694214876) internal successors, (366), 242 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:28,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 366 transitions. [2024-10-14 03:57:28,497 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 366 transitions. Word has length 60 [2024-10-14 03:57:28,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:28,498 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 366 transitions. [2024-10-14 03:57:28,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:28,498 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 366 transitions. [2024-10-14 03:57:28,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-14 03:57:28,501 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:28,501 INFO L215 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] [2024-10-14 03:57:28,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 03:57:28,502 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:28,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:28,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1090276998, now seen corresponding path program 1 times [2024-10-14 03:57:28,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:28,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353635745] [2024-10-14 03:57:28,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:28,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:28,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:28,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:28,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:28,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353635745] [2024-10-14 03:57:28,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353635745] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:28,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:28,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:57:28,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845209702] [2024-10-14 03:57:28,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:28,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:57:28,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:28,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:57:28,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:57:28,610 INFO L87 Difference]: Start difference. First operand 243 states and 366 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:28,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:28,631 INFO L93 Difference]: Finished difference Result 631 states and 980 transitions. [2024-10-14 03:57:28,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:57:28,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-10-14 03:57:28,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:28,634 INFO L225 Difference]: With dead ends: 631 [2024-10-14 03:57:28,634 INFO L226 Difference]: Without dead ends: 421 [2024-10-14 03:57:28,635 INFO L431 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 [2024-10-14 03:57:28,636 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 73 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:28,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 281 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:57:28,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2024-10-14 03:57:28,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 419. [2024-10-14 03:57:28,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 418 states have (on average 1.5358851674641147) internal successors, (642), 418 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:28,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 642 transitions. [2024-10-14 03:57:28,660 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 642 transitions. Word has length 61 [2024-10-14 03:57:28,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:28,661 INFO L471 AbstractCegarLoop]: Abstraction has 419 states and 642 transitions. [2024-10-14 03:57:28,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:28,661 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 642 transitions. [2024-10-14 03:57:28,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-14 03:57:28,662 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:28,663 INFO L215 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] [2024-10-14 03:57:28,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 03:57:28,663 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:28,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:28,664 INFO L85 PathProgramCache]: Analyzing trace with hash -27171808, now seen corresponding path program 1 times [2024-10-14 03:57:28,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:28,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390173958] [2024-10-14 03:57:28,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:28,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:28,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:28,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:28,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:28,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390173958] [2024-10-14 03:57:28,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390173958] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:28,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:28,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:57:28,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136066805] [2024-10-14 03:57:28,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:28,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:57:28,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:28,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:57:28,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:57:28,776 INFO L87 Difference]: Start difference. First operand 419 states and 642 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:28,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:28,800 INFO L93 Difference]: Finished difference Result 1127 states and 1756 transitions. [2024-10-14 03:57:28,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:57:28,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-10-14 03:57:28,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:28,804 INFO L225 Difference]: With dead ends: 1127 [2024-10-14 03:57:28,805 INFO L226 Difference]: Without dead ends: 741 [2024-10-14 03:57:28,806 INFO L431 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 [2024-10-14 03:57:28,809 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 68 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:28,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 277 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:57:28,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2024-10-14 03:57:28,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 739. [2024-10-14 03:57:28,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 739 states, 738 states have (on average 1.5420054200542006) internal successors, (1138), 738 states have internal predecessors, (1138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:28,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1138 transitions. [2024-10-14 03:57:28,850 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 1138 transitions. Word has length 62 [2024-10-14 03:57:28,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:28,851 INFO L471 AbstractCegarLoop]: Abstraction has 739 states and 1138 transitions. [2024-10-14 03:57:28,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:28,852 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 1138 transitions. [2024-10-14 03:57:28,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-14 03:57:28,853 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:28,853 INFO L215 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] [2024-10-14 03:57:28,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 03:57:28,853 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:28,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:28,854 INFO L85 PathProgramCache]: Analyzing trace with hash 2064580108, now seen corresponding path program 1 times [2024-10-14 03:57:28,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:28,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899738415] [2024-10-14 03:57:28,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:28,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:28,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:29,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:29,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:29,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899738415] [2024-10-14 03:57:29,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899738415] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:29,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:29,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:57:29,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822359912] [2024-10-14 03:57:29,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:29,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:57:29,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:29,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:57:29,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:57:29,093 INFO L87 Difference]: Start difference. First operand 739 states and 1138 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:29,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:29,393 INFO L93 Difference]: Finished difference Result 7799 states and 12188 transitions. [2024-10-14 03:57:29,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 03:57:29,394 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-10-14 03:57:29,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:29,421 INFO L225 Difference]: With dead ends: 7799 [2024-10-14 03:57:29,421 INFO L226 Difference]: Without dead ends: 7093 [2024-10-14 03:57:29,425 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-10-14 03:57:29,426 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 1198 mSDsluCounter, 1634 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1198 SdHoareTripleChecker+Valid, 1760 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:29,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1198 Valid, 1760 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:57:29,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7093 states. [2024-10-14 03:57:29,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7093 to 1443. [2024-10-14 03:57:29,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1443 states, 1442 states have (on average 1.5325936199722607) internal successors, (2210), 1442 states have internal predecessors, (2210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:29,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1443 states to 1443 states and 2210 transitions. [2024-10-14 03:57:29,519 INFO L78 Accepts]: Start accepts. Automaton has 1443 states and 2210 transitions. Word has length 63 [2024-10-14 03:57:29,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:29,519 INFO L471 AbstractCegarLoop]: Abstraction has 1443 states and 2210 transitions. [2024-10-14 03:57:29,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:29,520 INFO L276 IsEmpty]: Start isEmpty. Operand 1443 states and 2210 transitions. [2024-10-14 03:57:29,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-14 03:57:29,524 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:29,524 INFO L215 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, 1] [2024-10-14 03:57:29,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 03:57:29,525 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:29,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:29,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1135227800, now seen corresponding path program 1 times [2024-10-14 03:57:29,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:29,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972778620] [2024-10-14 03:57:29,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:29,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:29,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:29,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:29,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:29,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972778620] [2024-10-14 03:57:29,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972778620] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:29,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:29,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:57:29,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024596017] [2024-10-14 03:57:29,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:29,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:57:29,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:29,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:57:29,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:57:29,631 INFO L87 Difference]: Start difference. First operand 1443 states and 2210 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:29,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:29,684 INFO L93 Difference]: Finished difference Result 4087 states and 6260 transitions. [2024-10-14 03:57:29,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:57:29,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-10-14 03:57:29,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:29,693 INFO L225 Difference]: With dead ends: 4087 [2024-10-14 03:57:29,693 INFO L226 Difference]: Without dead ends: 2677 [2024-10-14 03:57:29,695 INFO L431 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 [2024-10-14 03:57:29,696 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 58 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:29,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 219 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:57:29,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2677 states. [2024-10-14 03:57:29,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2677 to 2643. [2024-10-14 03:57:29,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2643 states, 2642 states have (on average 1.5026495079485238) internal successors, (3970), 2642 states have internal predecessors, (3970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:29,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2643 states to 2643 states and 3970 transitions. [2024-10-14 03:57:29,754 INFO L78 Accepts]: Start accepts. Automaton has 2643 states and 3970 transitions. Word has length 65 [2024-10-14 03:57:29,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:29,755 INFO L471 AbstractCegarLoop]: Abstraction has 2643 states and 3970 transitions. [2024-10-14 03:57:29,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:29,755 INFO L276 IsEmpty]: Start isEmpty. Operand 2643 states and 3970 transitions. [2024-10-14 03:57:29,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-14 03:57:29,756 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:29,757 INFO L215 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, 1] [2024-10-14 03:57:29,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 03:57:29,757 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:29,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:29,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1114225145, now seen corresponding path program 1 times [2024-10-14 03:57:29,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:29,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590195195] [2024-10-14 03:57:29,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:29,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:29,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:30,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:30,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:30,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590195195] [2024-10-14 03:57:30,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590195195] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:30,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:30,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:57:30,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665405901] [2024-10-14 03:57:30,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:30,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:57:30,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:30,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:57:30,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:57:30,076 INFO L87 Difference]: Start difference. First operand 2643 states and 3970 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:30,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:30,270 INFO L93 Difference]: Finished difference Result 5255 states and 7908 transitions. [2024-10-14 03:57:30,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:57:30,270 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-10-14 03:57:30,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:30,278 INFO L225 Difference]: With dead ends: 5255 [2024-10-14 03:57:30,278 INFO L226 Difference]: Without dead ends: 2645 [2024-10-14 03:57:30,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-10-14 03:57:30,283 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 334 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:30,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 500 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:57:30,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2645 states. [2024-10-14 03:57:30,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2645 to 2643. [2024-10-14 03:57:30,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2643 states, 2642 states have (on average 1.490537471612415) internal successors, (3938), 2642 states have internal predecessors, (3938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:30,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2643 states to 2643 states and 3938 transitions. [2024-10-14 03:57:30,352 INFO L78 Accepts]: Start accepts. Automaton has 2643 states and 3938 transitions. Word has length 65 [2024-10-14 03:57:30,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:30,352 INFO L471 AbstractCegarLoop]: Abstraction has 2643 states and 3938 transitions. [2024-10-14 03:57:30,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:30,353 INFO L276 IsEmpty]: Start isEmpty. Operand 2643 states and 3938 transitions. [2024-10-14 03:57:30,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-14 03:57:30,353 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:30,353 INFO L215 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, 1, 1] [2024-10-14 03:57:30,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 03:57:30,354 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:30,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:30,354 INFO L85 PathProgramCache]: Analyzing trace with hash -234566684, now seen corresponding path program 1 times [2024-10-14 03:57:30,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:30,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012042851] [2024-10-14 03:57:30,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:30,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:30,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:30,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:30,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:30,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012042851] [2024-10-14 03:57:30,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012042851] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:30,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:30,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:57:30,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262408577] [2024-10-14 03:57:30,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:30,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:57:30,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:30,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:57:30,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:57:30,419 INFO L87 Difference]: Start difference. First operand 2643 states and 3938 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:30,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:30,451 INFO L93 Difference]: Finished difference Result 5146 states and 7752 transitions. [2024-10-14 03:57:30,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:57:30,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-10-14 03:57:30,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:30,463 INFO L225 Difference]: With dead ends: 5146 [2024-10-14 03:57:30,463 INFO L226 Difference]: Without dead ends: 3735 [2024-10-14 03:57:30,465 INFO L431 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 [2024-10-14 03:57:30,466 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 85 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:30,467 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 297 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:57:30,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3735 states. [2024-10-14 03:57:30,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3735 to 3733. [2024-10-14 03:57:30,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3733 states, 3732 states have (on average 1.4887459807073955) internal successors, (5556), 3732 states have internal predecessors, (5556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:30,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3733 states to 3733 states and 5556 transitions. [2024-10-14 03:57:30,536 INFO L78 Accepts]: Start accepts. Automaton has 3733 states and 5556 transitions. Word has length 66 [2024-10-14 03:57:30,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:30,537 INFO L471 AbstractCegarLoop]: Abstraction has 3733 states and 5556 transitions. [2024-10-14 03:57:30,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:30,538 INFO L276 IsEmpty]: Start isEmpty. Operand 3733 states and 5556 transitions. [2024-10-14 03:57:30,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-14 03:57:30,540 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:30,540 INFO L215 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, 1, 1] [2024-10-14 03:57:30,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 03:57:30,541 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:30,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:30,541 INFO L85 PathProgramCache]: Analyzing trace with hash -183150479, now seen corresponding path program 1 times [2024-10-14 03:57:30,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:30,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151676543] [2024-10-14 03:57:30,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:30,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:30,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:30,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:30,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:30,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151676543] [2024-10-14 03:57:30,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151676543] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:30,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:30,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:57:30,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271459728] [2024-10-14 03:57:30,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:30,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:57:30,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:30,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:57:30,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:57:30,658 INFO L87 Difference]: Start difference. First operand 3733 states and 5556 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:30,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:30,755 INFO L93 Difference]: Finished difference Result 7431 states and 11077 transitions. [2024-10-14 03:57:30,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:57:30,756 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-10-14 03:57:30,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:30,767 INFO L225 Difference]: With dead ends: 7431 [2024-10-14 03:57:30,767 INFO L226 Difference]: Without dead ends: 3733 [2024-10-14 03:57:30,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:57:30,800 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 322 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:30,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 99 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:57:30,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3733 states. [2024-10-14 03:57:30,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3733 to 3733. [2024-10-14 03:57:30,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3733 states, 3732 states have (on average 1.4758842443729903) internal successors, (5508), 3732 states have internal predecessors, (5508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:30,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3733 states to 3733 states and 5508 transitions. [2024-10-14 03:57:30,855 INFO L78 Accepts]: Start accepts. Automaton has 3733 states and 5508 transitions. Word has length 66 [2024-10-14 03:57:30,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:30,855 INFO L471 AbstractCegarLoop]: Abstraction has 3733 states and 5508 transitions. [2024-10-14 03:57:30,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:30,856 INFO L276 IsEmpty]: Start isEmpty. Operand 3733 states and 5508 transitions. [2024-10-14 03:57:30,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-14 03:57:30,856 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:30,856 INFO L215 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, 1, 1] [2024-10-14 03:57:30,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 03:57:30,857 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:30,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:30,857 INFO L85 PathProgramCache]: Analyzing trace with hash -55065172, now seen corresponding path program 1 times [2024-10-14 03:57:30,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:30,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725138003] [2024-10-14 03:57:30,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:30,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:30,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:30,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:30,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:30,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725138003] [2024-10-14 03:57:30,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725138003] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:30,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:30,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:57:30,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530012110] [2024-10-14 03:57:30,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:30,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:57:30,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:30,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:57:30,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:57:30,951 INFO L87 Difference]: Start difference. First operand 3733 states and 5508 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:31,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:31,048 INFO L93 Difference]: Finished difference Result 7431 states and 10981 transitions. [2024-10-14 03:57:31,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:57:31,049 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-10-14 03:57:31,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:31,060 INFO L225 Difference]: With dead ends: 7431 [2024-10-14 03:57:31,061 INFO L226 Difference]: Without dead ends: 3733 [2024-10-14 03:57:31,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:57:31,067 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 293 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:31,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 115 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:57:31,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3733 states. [2024-10-14 03:57:31,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3733 to 3733. [2024-10-14 03:57:31,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3733 states, 3732 states have (on average 1.4630225080385852) internal successors, (5460), 3732 states have internal predecessors, (5460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:31,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3733 states to 3733 states and 5460 transitions. [2024-10-14 03:57:31,128 INFO L78 Accepts]: Start accepts. Automaton has 3733 states and 5460 transitions. Word has length 66 [2024-10-14 03:57:31,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:31,129 INFO L471 AbstractCegarLoop]: Abstraction has 3733 states and 5460 transitions. [2024-10-14 03:57:31,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:31,129 INFO L276 IsEmpty]: Start isEmpty. Operand 3733 states and 5460 transitions. [2024-10-14 03:57:31,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-14 03:57:31,129 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:31,130 INFO L215 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, 1, 1] [2024-10-14 03:57:31,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 03:57:31,130 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:31,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:31,130 INFO L85 PathProgramCache]: Analyzing trace with hash -584355673, now seen corresponding path program 1 times [2024-10-14 03:57:31,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:31,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079717118] [2024-10-14 03:57:31,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:31,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:31,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:31,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:31,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:31,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079717118] [2024-10-14 03:57:31,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079717118] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:31,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:31,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:57:31,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622690555] [2024-10-14 03:57:31,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:31,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:57:31,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:31,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:57:31,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:57:31,238 INFO L87 Difference]: Start difference. First operand 3733 states and 5460 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:31,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:31,337 INFO L93 Difference]: Finished difference Result 7431 states and 10885 transitions. [2024-10-14 03:57:31,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:57:31,338 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-10-14 03:57:31,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:31,348 INFO L225 Difference]: With dead ends: 7431 [2024-10-14 03:57:31,348 INFO L226 Difference]: Without dead ends: 3733 [2024-10-14 03:57:31,352 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:57:31,353 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 329 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:31,353 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 91 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:57:31,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3733 states. [2024-10-14 03:57:31,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3733 to 3733. [2024-10-14 03:57:31,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3733 states, 3732 states have (on average 1.45016077170418) internal successors, (5412), 3732 states have internal predecessors, (5412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:31,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3733 states to 3733 states and 5412 transitions. [2024-10-14 03:57:31,405 INFO L78 Accepts]: Start accepts. Automaton has 3733 states and 5412 transitions. Word has length 66 [2024-10-14 03:57:31,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:31,405 INFO L471 AbstractCegarLoop]: Abstraction has 3733 states and 5412 transitions. [2024-10-14 03:57:31,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:31,406 INFO L276 IsEmpty]: Start isEmpty. Operand 3733 states and 5412 transitions. [2024-10-14 03:57:31,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-14 03:57:31,406 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:31,406 INFO L215 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, 1, 1] [2024-10-14 03:57:31,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 03:57:31,407 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:31,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:31,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1347219380, now seen corresponding path program 1 times [2024-10-14 03:57:31,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:31,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795961137] [2024-10-14 03:57:31,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:31,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:31,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:31,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:31,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:31,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795961137] [2024-10-14 03:57:31,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795961137] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:31,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:31,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 03:57:31,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467778118] [2024-10-14 03:57:31,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:31,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:57:31,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:31,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:57:31,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:57:31,655 INFO L87 Difference]: Start difference. First operand 3733 states and 5412 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:31,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:31,690 INFO L93 Difference]: Finished difference Result 3863 states and 5605 transitions. [2024-10-14 03:57:31,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:57:31,690 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-10-14 03:57:31,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:31,700 INFO L225 Difference]: With dead ends: 3863 [2024-10-14 03:57:31,701 INFO L226 Difference]: Without dead ends: 3861 [2024-10-14 03:57:31,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:57:31,703 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 0 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:31,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 488 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:57:31,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3861 states. [2024-10-14 03:57:31,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3861 to 3861. [2024-10-14 03:57:31,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3861 states, 3860 states have (on average 1.4310880829015544) internal successors, (5524), 3860 states have internal predecessors, (5524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:31,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3861 states to 3861 states and 5524 transitions. [2024-10-14 03:57:31,780 INFO L78 Accepts]: Start accepts. Automaton has 3861 states and 5524 transitions. Word has length 66 [2024-10-14 03:57:31,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:31,781 INFO L471 AbstractCegarLoop]: Abstraction has 3861 states and 5524 transitions. [2024-10-14 03:57:31,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:31,781 INFO L276 IsEmpty]: Start isEmpty. Operand 3861 states and 5524 transitions. [2024-10-14 03:57:31,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-14 03:57:31,784 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:31,784 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:31,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 03:57:31,784 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:31,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:31,785 INFO L85 PathProgramCache]: Analyzing trace with hash 347946167, now seen corresponding path program 1 times [2024-10-14 03:57:31,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:31,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465403715] [2024-10-14 03:57:31,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:31,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:31,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:31,948 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-14 03:57:31,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:31,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465403715] [2024-10-14 03:57:31,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465403715] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:31,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:31,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:57:31,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487203880] [2024-10-14 03:57:31,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:31,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:57:31,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:31,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:57:31,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:57:31,950 INFO L87 Difference]: Start difference. First operand 3861 states and 5524 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:32,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:32,123 INFO L93 Difference]: Finished difference Result 23713 states and 33970 transitions. [2024-10-14 03:57:32,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:57:32,124 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 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 93 [2024-10-14 03:57:32,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:32,160 INFO L225 Difference]: With dead ends: 23713 [2024-10-14 03:57:32,161 INFO L226 Difference]: Without dead ends: 19887 [2024-10-14 03:57:32,173 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:57:32,174 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 926 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:32,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 803 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:57:32,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19887 states. [2024-10-14 03:57:32,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19887 to 7685. [2024-10-14 03:57:32,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7685 states, 7684 states have (on average 1.426861009890682) internal successors, (10964), 7684 states have internal predecessors, (10964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:32,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7685 states to 7685 states and 10964 transitions. [2024-10-14 03:57:32,361 INFO L78 Accepts]: Start accepts. Automaton has 7685 states and 10964 transitions. Word has length 93 [2024-10-14 03:57:32,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:32,361 INFO L471 AbstractCegarLoop]: Abstraction has 7685 states and 10964 transitions. [2024-10-14 03:57:32,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:32,362 INFO L276 IsEmpty]: Start isEmpty. Operand 7685 states and 10964 transitions. [2024-10-14 03:57:32,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-14 03:57:32,364 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:32,365 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:32,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 03:57:32,365 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:32,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:32,365 INFO L85 PathProgramCache]: Analyzing trace with hash -805999939, now seen corresponding path program 1 times [2024-10-14 03:57:32,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:32,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54168271] [2024-10-14 03:57:32,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:32,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:32,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:32,526 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-14 03:57:32,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:32,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54168271] [2024-10-14 03:57:32,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54168271] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:32,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:32,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:57:32,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624471558] [2024-10-14 03:57:32,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:32,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:57:32,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:32,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:57:32,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:57:32,529 INFO L87 Difference]: Start difference. First operand 7685 states and 10964 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:32,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:32,751 INFO L93 Difference]: Finished difference Result 27537 states and 39410 transitions. [2024-10-14 03:57:32,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:57:32,752 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 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 93 [2024-10-14 03:57:32,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:32,791 INFO L225 Difference]: With dead ends: 27537 [2024-10-14 03:57:32,792 INFO L226 Difference]: Without dead ends: 23711 [2024-10-14 03:57:32,801 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:57:32,802 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 879 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 879 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:32,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [879 Valid, 813 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:57:32,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23711 states. [2024-10-14 03:57:33,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23711 to 13429. [2024-10-14 03:57:33,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13429 states, 13428 states have (on average 1.4212094131665178) internal successors, (19084), 13428 states have internal predecessors, (19084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:33,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13429 states to 13429 states and 19084 transitions. [2024-10-14 03:57:33,140 INFO L78 Accepts]: Start accepts. Automaton has 13429 states and 19084 transitions. Word has length 93 [2024-10-14 03:57:33,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:33,140 INFO L471 AbstractCegarLoop]: Abstraction has 13429 states and 19084 transitions. [2024-10-14 03:57:33,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:33,141 INFO L276 IsEmpty]: Start isEmpty. Operand 13429 states and 19084 transitions. [2024-10-14 03:57:33,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-14 03:57:33,147 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:33,147 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:33,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 03:57:33,148 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:33,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:33,148 INFO L85 PathProgramCache]: Analyzing trace with hash -509954511, now seen corresponding path program 1 times [2024-10-14 03:57:33,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:33,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934932704] [2024-10-14 03:57:33,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:33,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:33,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:33,368 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-14 03:57:33,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:33,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934932704] [2024-10-14 03:57:33,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934932704] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:33,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:33,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:57:33,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590357587] [2024-10-14 03:57:33,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:33,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:57:33,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:33,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:57:33,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:57:33,371 INFO L87 Difference]: Start difference. First operand 13429 states and 19084 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:33,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:33,620 INFO L93 Difference]: Finished difference Result 31361 states and 44850 transitions. [2024-10-14 03:57:33,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:57:33,621 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 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 93 [2024-10-14 03:57:33,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:33,678 INFO L225 Difference]: With dead ends: 31361 [2024-10-14 03:57:33,679 INFO L226 Difference]: Without dead ends: 27535 [2024-10-14 03:57:33,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:57:33,697 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 772 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:33,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 946 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:57:33,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27535 states. [2024-10-14 03:57:34,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27535 to 17253. [2024-10-14 03:57:34,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17253 states, 17252 states have (on average 1.4215163459309066) internal successors, (24524), 17252 states have internal predecessors, (24524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:34,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17253 states to 17253 states and 24524 transitions. [2024-10-14 03:57:34,063 INFO L78 Accepts]: Start accepts. Automaton has 17253 states and 24524 transitions. Word has length 93 [2024-10-14 03:57:34,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:34,063 INFO L471 AbstractCegarLoop]: Abstraction has 17253 states and 24524 transitions. [2024-10-14 03:57:34,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:34,064 INFO L276 IsEmpty]: Start isEmpty. Operand 17253 states and 24524 transitions. [2024-10-14 03:57:34,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-14 03:57:34,067 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:34,067 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:34,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 03:57:34,068 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:34,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:34,068 INFO L85 PathProgramCache]: Analyzing trace with hash 918542123, now seen corresponding path program 1 times [2024-10-14 03:57:34,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:34,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708535041] [2024-10-14 03:57:34,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:34,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:34,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:34,232 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-14 03:57:34,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:34,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708535041] [2024-10-14 03:57:34,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708535041] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:34,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:34,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:57:34,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47751623] [2024-10-14 03:57:34,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:34,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:57:34,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:34,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:57:34,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:57:34,235 INFO L87 Difference]: Start difference. First operand 17253 states and 24524 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:34,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:34,541 INFO L93 Difference]: Finished difference Result 35185 states and 50290 transitions. [2024-10-14 03:57:34,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:57:34,542 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 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 93 [2024-10-14 03:57:34,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:34,605 INFO L225 Difference]: With dead ends: 35185 [2024-10-14 03:57:34,606 INFO L226 Difference]: Without dead ends: 31359 [2024-10-14 03:57:34,622 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:57:34,622 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 815 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 815 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:34,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [815 Valid, 947 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:57:34,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31359 states. [2024-10-14 03:57:34,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31359 to 21077. [2024-10-14 03:57:34,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21077 states, 21076 states have (on average 1.4217118997912317) internal successors, (29964), 21076 states have internal predecessors, (29964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:35,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21077 states to 21077 states and 29964 transitions. [2024-10-14 03:57:35,008 INFO L78 Accepts]: Start accepts. Automaton has 21077 states and 29964 transitions. Word has length 93 [2024-10-14 03:57:35,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:35,008 INFO L471 AbstractCegarLoop]: Abstraction has 21077 states and 29964 transitions. [2024-10-14 03:57:35,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:35,008 INFO L276 IsEmpty]: Start isEmpty. Operand 21077 states and 29964 transitions. [2024-10-14 03:57:35,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-14 03:57:35,013 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:35,013 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:35,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 03:57:35,013 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:35,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:35,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1542410051, now seen corresponding path program 1 times [2024-10-14 03:57:35,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:35,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292776508] [2024-10-14 03:57:35,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:35,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:35,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:35,181 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 03:57:35,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:35,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292776508] [2024-10-14 03:57:35,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292776508] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:35,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:35,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:57:35,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554815474] [2024-10-14 03:57:35,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:35,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:57:35,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:35,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:57:35,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:57:35,184 INFO L87 Difference]: Start difference. First operand 21077 states and 29964 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:35,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:35,560 INFO L93 Difference]: Finished difference Result 36609 states and 52370 transitions. [2024-10-14 03:57:35,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:57:35,561 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 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 94 [2024-10-14 03:57:35,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:35,706 INFO L225 Difference]: With dead ends: 36609 [2024-10-14 03:57:35,706 INFO L226 Difference]: Without dead ends: 33983 [2024-10-14 03:57:35,719 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:57:35,719 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 809 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:35,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 860 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:57:35,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33983 states. [2024-10-14 03:57:36,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33983 to 23701. [2024-10-14 03:57:36,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23701 states, 23700 states have (on average 1.4236286919831223) internal successors, (33740), 23700 states have internal predecessors, (33740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:36,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23701 states to 23701 states and 33740 transitions. [2024-10-14 03:57:36,188 INFO L78 Accepts]: Start accepts. Automaton has 23701 states and 33740 transitions. Word has length 94 [2024-10-14 03:57:36,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:36,188 INFO L471 AbstractCegarLoop]: Abstraction has 23701 states and 33740 transitions. [2024-10-14 03:57:36,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:36,188 INFO L276 IsEmpty]: Start isEmpty. Operand 23701 states and 33740 transitions. [2024-10-14 03:57:36,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-14 03:57:36,193 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:36,193 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:36,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 03:57:36,194 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:36,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:36,194 INFO L85 PathProgramCache]: Analyzing trace with hash 342548852, now seen corresponding path program 1 times [2024-10-14 03:57:36,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:36,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195297749] [2024-10-14 03:57:36,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:36,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:36,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:36,664 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:36,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:36,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195297749] [2024-10-14 03:57:36,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195297749] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:57:36,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394105044] [2024-10-14 03:57:36,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:36,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:57:36,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:57:36,668 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 03:57:36,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 03:57:36,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:36,826 INFO L255 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-14 03:57:36,842 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:57:37,224 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:37,226 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 03:57:37,621 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:37,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1394105044] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 03:57:37,622 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 03:57:37,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 5] total 16 [2024-10-14 03:57:37,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210100310] [2024-10-14 03:57:37,623 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 03:57:37,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-14 03:57:37,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:37,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-14 03:57:37,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2024-10-14 03:57:37,625 INFO L87 Difference]: Start difference. First operand 23701 states and 33740 transitions. Second operand has 16 states, 16 states have (on average 17.125) internal successors, (274), 16 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:40,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:40,917 INFO L93 Difference]: Finished difference Result 163024 states and 232564 transitions. [2024-10-14 03:57:40,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2024-10-14 03:57:40,917 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 17.125) internal successors, (274), 16 states have internal predecessors, (274), 0 states have call successors, (0), 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 95 [2024-10-14 03:57:40,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:41,162 INFO L225 Difference]: With dead ends: 163024 [2024-10-14 03:57:41,163 INFO L226 Difference]: Without dead ends: 139358 [2024-10-14 03:57:41,218 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2384 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1176, Invalid=5304, Unknown=0, NotChecked=0, Total=6480 [2024-10-14 03:57:41,219 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 3787 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 1369 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3787 SdHoareTripleChecker+Valid, 1139 SdHoareTripleChecker+Invalid, 1423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:41,219 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3787 Valid, 1139 Invalid, 1423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1369 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-14 03:57:41,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139358 states. [2024-10-14 03:57:42,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139358 to 118594. [2024-10-14 03:57:42,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118594 states, 118593 states have (on average 1.3918359430995084) internal successors, (165062), 118593 states have internal predecessors, (165062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:43,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118594 states to 118594 states and 165062 transitions. [2024-10-14 03:57:43,248 INFO L78 Accepts]: Start accepts. Automaton has 118594 states and 165062 transitions. Word has length 95 [2024-10-14 03:57:43,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:43,248 INFO L471 AbstractCegarLoop]: Abstraction has 118594 states and 165062 transitions. [2024-10-14 03:57:43,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 17.125) internal successors, (274), 16 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:43,249 INFO L276 IsEmpty]: Start isEmpty. Operand 118594 states and 165062 transitions. [2024-10-14 03:57:43,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-14 03:57:43,262 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:43,262 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:43,308 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 03:57:43,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-14 03:57:43,463 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:43,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:43,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1968240871, now seen corresponding path program 1 times [2024-10-14 03:57:43,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:43,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797369689] [2024-10-14 03:57:43,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:43,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:43,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:44,255 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:44,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:44,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797369689] [2024-10-14 03:57:44,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797369689] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:57:44,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1287270644] [2024-10-14 03:57:44,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:44,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:57:44,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:57:44,259 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 03:57:44,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 03:57:44,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:44,412 INFO L255 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-14 03:57:44,417 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:57:45,010 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:45,011 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 03:57:45,851 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:45,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1287270644] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 03:57:45,851 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 03:57:45,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 26 [2024-10-14 03:57:45,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664459885] [2024-10-14 03:57:45,852 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 03:57:45,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-10-14 03:57:45,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:45,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-10-14 03:57:45,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=636, Unknown=0, NotChecked=0, Total=702 [2024-10-14 03:57:45,854 INFO L87 Difference]: Start difference. First operand 118594 states and 165062 transitions. Second operand has 27 states, 27 states have (on average 9.851851851851851) internal successors, (266), 26 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:55,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:55,242 INFO L93 Difference]: Finished difference Result 1208943 states and 1659974 transitions. [2024-10-14 03:57:55,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2024-10-14 03:57:55,243 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 9.851851851851851) internal successors, (266), 26 states have internal predecessors, (266), 0 states have call successors, (0), 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 96 [2024-10-14 03:57:55,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:58,091 INFO L225 Difference]: With dead ends: 1208943 [2024-10-14 03:57:58,091 INFO L226 Difference]: Without dead ends: 1090404 [2024-10-14 03:57:58,448 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8234 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=3369, Invalid=19887, Unknown=0, NotChecked=0, Total=23256 [2024-10-14 03:57:58,452 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 4621 mSDsluCounter, 1758 mSDsCounter, 0 mSdLazyCounter, 3516 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4621 SdHoareTripleChecker+Valid, 1893 SdHoareTripleChecker+Invalid, 3559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 3516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:58,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4621 Valid, 1893 Invalid, 3559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 3516 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-14 03:57:59,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1090404 states. [2024-10-14 03:58:08,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1090404 to 608204. [2024-10-14 03:58:09,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 608204 states, 608203 states have (on average 1.3782421329720504) internal successors, (838251), 608203 states have internal predecessors, (838251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:11,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608204 states to 608204 states and 838251 transitions. [2024-10-14 03:58:11,501 INFO L78 Accepts]: Start accepts. Automaton has 608204 states and 838251 transitions. Word has length 96 [2024-10-14 03:58:11,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:58:11,501 INFO L471 AbstractCegarLoop]: Abstraction has 608204 states and 838251 transitions. [2024-10-14 03:58:11,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 9.851851851851851) internal successors, (266), 26 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:11,502 INFO L276 IsEmpty]: Start isEmpty. Operand 608204 states and 838251 transitions. [2024-10-14 03:58:11,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-14 03:58:11,508 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:11,508 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:58:11,529 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 03:58:11,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:58:11,709 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:11,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:11,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1825907725, now seen corresponding path program 1 times [2024-10-14 03:58:11,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:11,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456668100] [2024-10-14 03:58:11,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:11,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:11,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:11,769 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 03:58:11,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:11,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456668100] [2024-10-14 03:58:11,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456668100] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:58:11,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:58:11,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:58:11,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114314703] [2024-10-14 03:58:11,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:58:11,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:58:11,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:58:11,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:58:11,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:58:11,772 INFO L87 Difference]: Start difference. First operand 608204 states and 838251 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:17,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:58:17,200 INFO L93 Difference]: Finished difference Result 1181767 states and 1634097 transitions. [2024-10-14 03:58:17,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:58:17,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 97 [2024-10-14 03:58:17,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:58:18,185 INFO L225 Difference]: With dead ends: 1181767 [2024-10-14 03:58:18,185 INFO L226 Difference]: Without dead ends: 573703 [2024-10-14 03:58:18,527 INFO L431 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 [2024-10-14 03:58:18,528 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 68 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:58:18,528 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 120 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:58:18,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573703 states.