./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.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 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.ufo.UNBOUNDED.pals.c.v+nlh-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 5c7b2e547f39f7d53d20335ecc1b1fbde6acdc52384cb52caa86017352bf317a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 01:50:33,679 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 01:50:33,747 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 01:50:33,753 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 01:50:33,754 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 01:50:33,787 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 01:50:33,788 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 01:50:33,788 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 01:50:33,789 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 01:50:33,789 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 01:50:33,790 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 01:50:33,791 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 01:50:33,791 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 01:50:33,792 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 01:50:33,794 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 01:50:33,794 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 01:50:33,795 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 01:50:33,795 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 01:50:33,795 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 01:50:33,796 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 01:50:33,796 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 01:50:33,800 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 01:50:33,801 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 01:50:33,801 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 01:50:33,801 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 01:50:33,801 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 01:50:33,802 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 01:50:33,802 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 01:50:33,802 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 01:50:33,802 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 01:50:33,803 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 01:50:33,803 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 01:50:33,803 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:50:33,803 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 01:50:33,804 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 01:50:33,805 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 01:50:33,806 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 01:50:33,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 01:50:33,806 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 01:50:33,806 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 01:50:33,807 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 01:50:33,807 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 01:50:33,807 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c7b2e547f39f7d53d20335ecc1b1fbde6acdc52384cb52caa86017352bf317a [2024-10-24 01:50:34,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 01:50:34,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 01:50:34,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 01:50:34,112 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 01:50:34,113 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 01:50:34,114 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-10-24 01:50:35,618 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 01:50:35,834 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 01:50:35,834 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-10-24 01:50:35,847 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0b045d91/e9b2a1891c6a40f49db9a2427c7ce32e/FLAGa0b27f8a8 [2024-10-24 01:50:36,185 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0b045d91/e9b2a1891c6a40f49db9a2427c7ce32e [2024-10-24 01:50:36,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 01:50:36,189 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 01:50:36,191 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 01:50:36,191 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 01:50:36,196 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 01:50:36,197 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:50:36" (1/1) ... [2024-10-24 01:50:36,199 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a32e9f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:50:36, skipping insertion in model container [2024-10-24 01:50:36,200 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:50:36" (1/1) ... [2024-10-24 01:50:36,244 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 01:50:36,534 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.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[7834,7847] [2024-10-24 01:50:36,593 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:50:36,612 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 01:50:36,661 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.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[7834,7847] [2024-10-24 01:50:36,691 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:50:36,720 INFO L204 MainTranslator]: Completed translation [2024-10-24 01:50:36,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:50:36 WrapperNode [2024-10-24 01:50:36,720 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 01:50:36,721 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 01:50:36,721 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 01:50:36,721 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 01:50:36,727 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:50:36" (1/1) ... [2024-10-24 01:50:36,738 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:50:36" (1/1) ... [2024-10-24 01:50:36,776 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 671 [2024-10-24 01:50:36,777 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 01:50:36,777 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 01:50:36,778 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 01:50:36,778 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 01:50:36,791 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:50:36" (1/1) ... [2024-10-24 01:50:36,791 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:50:36" (1/1) ... [2024-10-24 01:50:36,802 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:50:36" (1/1) ... [2024-10-24 01:50:36,820 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]. [2024-10-24 01:50:36,821 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:50:36" (1/1) ... [2024-10-24 01:50:36,821 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:50:36" (1/1) ... [2024-10-24 01:50:36,831 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:50:36" (1/1) ... [2024-10-24 01:50:36,839 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:50:36" (1/1) ... [2024-10-24 01:50:36,844 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:50:36" (1/1) ... [2024-10-24 01:50:36,849 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:50:36" (1/1) ... [2024-10-24 01:50:36,856 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 01:50:36,861 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 01:50:36,861 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 01:50:36,861 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 01:50:36,862 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:50:36" (1/1) ... [2024-10-24 01:50:36,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:50:36,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:50:36,903 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) [2024-10-24 01:50:36,908 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 [2024-10-24 01:50:36,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 01:50:36,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 01:50:36,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 01:50:36,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 01:50:37,129 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 01:50:37,130 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 01:50:37,777 INFO L? ?]: Removed 81 outVars from TransFormulas that were not future-live. [2024-10-24 01:50:37,777 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 01:50:37,836 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 01:50:37,836 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 01:50:37,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:50:37 BoogieIcfgContainer [2024-10-24 01:50:37,837 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 01:50:37,839 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 01:50:37,839 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 01:50:37,843 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 01:50:37,843 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:50:36" (1/3) ... [2024-10-24 01:50:37,844 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b58b38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:50:37, skipping insertion in model container [2024-10-24 01:50:37,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:50:36" (2/3) ... [2024-10-24 01:50:37,844 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b58b38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:50:37, skipping insertion in model container [2024-10-24 01:50:37,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:50:37" (3/3) ... [2024-10-24 01:50:37,846 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-10-24 01:50:37,859 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 01:50:37,860 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 01:50:37,920 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 01:50:37,927 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;@19e6d4ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 01:50:37,927 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 01:50:37,937 INFO L276 IsEmpty]: Start isEmpty. Operand has 147 states, 145 states have (on average 1.7655172413793103) internal successors, (256), 146 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:37,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-24 01:50:37,949 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:50:37,951 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:50:37,952 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:50:37,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:50:37,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1466721515, now seen corresponding path program 1 times [2024-10-24 01:50:37,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:50:37,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176901120] [2024-10-24 01:50:37,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:50:37,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:50:38,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:50:38,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:50:38,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:50:38,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176901120] [2024-10-24 01:50:38,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176901120] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:50:38,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:50:38,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:50:38,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677291701] [2024-10-24 01:50:38,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:50:38,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:50:38,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:50:38,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:50:38,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:50:38,722 INFO L87 Difference]: Start difference. First operand has 147 states, 145 states have (on average 1.7655172413793103) internal successors, (256), 146 states have internal predecessors, (256), 0 states have call successors, (0), 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 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:39,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:50:39,232 INFO L93 Difference]: Finished difference Result 824 states and 1337 transitions. [2024-10-24 01:50:39,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 01:50:39,234 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-10-24 01:50:39,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:50:39,259 INFO L225 Difference]: With dead ends: 824 [2024-10-24 01:50:39,259 INFO L226 Difference]: Without dead ends: 749 [2024-10-24 01:50:39,263 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 [2024-10-24 01:50:39,268 INFO L432 NwaCegarLoop]: 415 mSDtfsCounter, 1616 mSDsluCounter, 1415 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1616 SdHoareTripleChecker+Valid, 1830 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:50:39,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1616 Valid, 1830 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:50:39,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2024-10-24 01:50:39,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 225. [2024-10-24 01:50:39,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 224 states have (on average 1.4642857142857142) internal successors, (328), 224 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:39,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 328 transitions. [2024-10-24 01:50:39,347 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 328 transitions. Word has length 74 [2024-10-24 01:50:39,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:50:39,348 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 328 transitions. [2024-10-24 01:50:39,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:39,349 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 328 transitions. [2024-10-24 01:50:39,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-24 01:50:39,352 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:50:39,353 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:50:39,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 01:50:39,353 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:50:39,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:50:39,354 INFO L85 PathProgramCache]: Analyzing trace with hash 778354453, now seen corresponding path program 1 times [2024-10-24 01:50:39,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:50:39,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107953256] [2024-10-24 01:50:39,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:50:39,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:50:39,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:50:39,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:50:39,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:50:39,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107953256] [2024-10-24 01:50:39,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107953256] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:50:39,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:50:39,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:50:39,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27594336] [2024-10-24 01:50:39,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:50:39,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:50:39,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:50:39,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:50:39,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:50:39,645 INFO L87 Difference]: Start difference. First operand 225 states and 328 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:39,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:50:39,834 INFO L93 Difference]: Finished difference Result 920 states and 1430 transitions. [2024-10-24 01:50:39,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:50:39,835 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-10-24 01:50:39,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:50:39,840 INFO L225 Difference]: With dead ends: 920 [2024-10-24 01:50:39,840 INFO L226 Difference]: Without dead ends: 800 [2024-10-24 01:50:39,842 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 [2024-10-24 01:50:39,843 INFO L432 NwaCegarLoop]: 386 mSDtfsCounter, 1027 mSDsluCounter, 860 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1027 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:50:39,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1027 Valid, 1246 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:50:39,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2024-10-24 01:50:39,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 354. [2024-10-24 01:50:39,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 353 states have (on average 1.5127478753541077) internal successors, (534), 353 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:39,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 534 transitions. [2024-10-24 01:50:39,876 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 534 transitions. Word has length 76 [2024-10-24 01:50:39,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:50:39,879 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 534 transitions. [2024-10-24 01:50:39,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:39,879 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 534 transitions. [2024-10-24 01:50:39,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-24 01:50:39,881 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:50:39,881 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:50:39,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 01:50:39,882 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:50:39,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:50:39,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1223894625, now seen corresponding path program 1 times [2024-10-24 01:50:39,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:50:39,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435871389] [2024-10-24 01:50:39,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:50:39,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:50:39,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:50:40,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:50:40,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:50:40,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435871389] [2024-10-24 01:50:40,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435871389] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:50:40,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:50:40,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:50:40,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012614174] [2024-10-24 01:50:40,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:50:40,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:50:40,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:50:40,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:50:40,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:50:40,135 INFO L87 Difference]: Start difference. First operand 354 states and 534 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:40,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:50:40,278 INFO L93 Difference]: Finished difference Result 1044 states and 1628 transitions. [2024-10-24 01:50:40,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:50:40,279 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-10-24 01:50:40,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:50:40,283 INFO L225 Difference]: With dead ends: 1044 [2024-10-24 01:50:40,283 INFO L226 Difference]: Without dead ends: 924 [2024-10-24 01:50:40,284 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 [2024-10-24 01:50:40,285 INFO L432 NwaCegarLoop]: 292 mSDtfsCounter, 1294 mSDsluCounter, 762 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1294 SdHoareTripleChecker+Valid, 1054 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:50:40,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1294 Valid, 1054 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:50:40,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2024-10-24 01:50:40,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 537. [2024-10-24 01:50:40,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 536 states have (on average 1.541044776119403) internal successors, (826), 536 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:40,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 826 transitions. [2024-10-24 01:50:40,301 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 826 transitions. Word has length 76 [2024-10-24 01:50:40,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:50:40,302 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 826 transitions. [2024-10-24 01:50:40,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:40,302 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 826 transitions. [2024-10-24 01:50:40,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-24 01:50:40,303 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:50:40,303 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:50:40,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 01:50:40,303 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:50:40,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:50:40,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1494551508, now seen corresponding path program 1 times [2024-10-24 01:50:40,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:50:40,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189255182] [2024-10-24 01:50:40,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:50:40,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:50:40,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:50:40,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:50:40,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:50:40,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189255182] [2024-10-24 01:50:40,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189255182] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:50:40,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:50:40,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:50:40,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404379821] [2024-10-24 01:50:40,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:50:40,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:50:40,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:50:40,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:50:40,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:50:40,653 INFO L87 Difference]: Start difference. First operand 537 states and 826 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:40,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:50:40,845 INFO L93 Difference]: Finished difference Result 954 states and 1490 transitions. [2024-10-24 01:50:40,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:50:40,846 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-10-24 01:50:40,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:50:40,849 INFO L225 Difference]: With dead ends: 954 [2024-10-24 01:50:40,850 INFO L226 Difference]: Without dead ends: 539 [2024-10-24 01:50:40,852 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 [2024-10-24 01:50:40,854 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 604 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 604 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:50:40,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [604 Valid, 680 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:50:40,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2024-10-24 01:50:40,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 537. [2024-10-24 01:50:40,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 536 states have (on average 1.5335820895522387) internal successors, (822), 536 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:40,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 822 transitions. [2024-10-24 01:50:40,870 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 822 transitions. Word has length 76 [2024-10-24 01:50:40,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:50:40,872 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 822 transitions. [2024-10-24 01:50:40,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:40,872 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 822 transitions. [2024-10-24 01:50:40,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-24 01:50:40,876 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:50:40,877 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:50:40,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 01:50:40,877 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:50:40,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:50:40,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1286699701, now seen corresponding path program 1 times [2024-10-24 01:50:40,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:50:40,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313924907] [2024-10-24 01:50:40,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:50:40,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:50:40,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:50:40,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:50:40,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:50:40,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313924907] [2024-10-24 01:50:40,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313924907] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:50:40,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:50:40,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:50:40,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108552069] [2024-10-24 01:50:40,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:50:40,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:50:40,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:50:40,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:50:40,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:50:40,947 INFO L87 Difference]: Start difference. First operand 537 states and 822 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:40,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:50:40,986 INFO L93 Difference]: Finished difference Result 1322 states and 2065 transitions. [2024-10-24 01:50:40,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:50:40,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-10-24 01:50:40,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:50:40,990 INFO L225 Difference]: With dead ends: 1322 [2024-10-24 01:50:40,990 INFO L226 Difference]: Without dead ends: 907 [2024-10-24 01:50:40,991 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 [2024-10-24 01:50:40,992 INFO L432 NwaCegarLoop]: 278 mSDtfsCounter, 83 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:50:40,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 465 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:50:40,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2024-10-24 01:50:41,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 891. [2024-10-24 01:50:41,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 891 states, 890 states have (on average 1.5393258426966292) internal successors, (1370), 890 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:41,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1370 transitions. [2024-10-24 01:50:41,011 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1370 transitions. Word has length 76 [2024-10-24 01:50:41,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:50:41,011 INFO L471 AbstractCegarLoop]: Abstraction has 891 states and 1370 transitions. [2024-10-24 01:50:41,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:41,012 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1370 transitions. [2024-10-24 01:50:41,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-24 01:50:41,015 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:50:41,015 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:50:41,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 01:50:41,016 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:50:41,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:50:41,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1445257025, now seen corresponding path program 1 times [2024-10-24 01:50:41,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:50:41,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002481782] [2024-10-24 01:50:41,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:50:41,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:50:41,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:50:41,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:50:41,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:50:41,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002481782] [2024-10-24 01:50:41,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002481782] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:50:41,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:50:41,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:50:41,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921876475] [2024-10-24 01:50:41,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:50:41,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:50:41,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:50:41,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:50:41,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:50:41,195 INFO L87 Difference]: Start difference. First operand 891 states and 1370 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:41,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:50:41,373 INFO L93 Difference]: Finished difference Result 2022 states and 3142 transitions. [2024-10-24 01:50:41,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:50:41,374 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-10-24 01:50:41,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:50:41,381 INFO L225 Difference]: With dead ends: 2022 [2024-10-24 01:50:41,381 INFO L226 Difference]: Without dead ends: 1801 [2024-10-24 01:50:41,382 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 [2024-10-24 01:50:41,383 INFO L432 NwaCegarLoop]: 370 mSDtfsCounter, 1036 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1036 SdHoareTripleChecker+Valid, 1395 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:50:41,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1036 Valid, 1395 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:50:41,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1801 states. [2024-10-24 01:50:41,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1801 to 1111. [2024-10-24 01:50:41,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1111 states, 1110 states have (on average 1.545045045045045) internal successors, (1715), 1110 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:41,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 1715 transitions. [2024-10-24 01:50:41,418 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 1715 transitions. Word has length 76 [2024-10-24 01:50:41,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:50:41,418 INFO L471 AbstractCegarLoop]: Abstraction has 1111 states and 1715 transitions. [2024-10-24 01:50:41,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:41,419 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 1715 transitions. [2024-10-24 01:50:41,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-24 01:50:41,420 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:50:41,420 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:50:41,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 01:50:41,420 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:50:41,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:50:41,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1334165707, now seen corresponding path program 1 times [2024-10-24 01:50:41,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:50:41,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370094179] [2024-10-24 01:50:41,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:50:41,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:50:41,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:50:41,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:50:41,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:50:41,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370094179] [2024-10-24 01:50:41,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370094179] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:50:41,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:50:41,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:50:41,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133159407] [2024-10-24 01:50:41,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:50:41,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:50:41,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:50:41,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:50:41,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:50:41,581 INFO L87 Difference]: Start difference. First operand 1111 states and 1715 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:41,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:50:41,766 INFO L93 Difference]: Finished difference Result 2252 states and 3503 transitions. [2024-10-24 01:50:41,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:50:41,767 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-10-24 01:50:41,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:50:41,774 INFO L225 Difference]: With dead ends: 2252 [2024-10-24 01:50:41,774 INFO L226 Difference]: Without dead ends: 2031 [2024-10-24 01:50:41,775 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 [2024-10-24 01:50:41,776 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 1079 mSDsluCounter, 1305 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1079 SdHoareTripleChecker+Valid, 1700 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:50:41,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1079 Valid, 1700 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:50:41,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2031 states. [2024-10-24 01:50:41,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2031 to 1346. [2024-10-24 01:50:41,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1346 states, 1345 states have (on average 1.549442379182156) internal successors, (2084), 1345 states have internal predecessors, (2084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:41,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 2084 transitions. [2024-10-24 01:50:41,812 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 2084 transitions. Word has length 76 [2024-10-24 01:50:41,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:50:41,812 INFO L471 AbstractCegarLoop]: Abstraction has 1346 states and 2084 transitions. [2024-10-24 01:50:41,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:41,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 2084 transitions. [2024-10-24 01:50:41,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-24 01:50:41,813 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:50:41,814 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:50:41,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 01:50:41,814 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:50:41,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:50:41,814 INFO L85 PathProgramCache]: Analyzing trace with hash 542802153, now seen corresponding path program 1 times [2024-10-24 01:50:41,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:50:41,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30311785] [2024-10-24 01:50:41,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:50:41,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:50:41,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:50:42,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:50:42,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:50:42,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30311785] [2024-10-24 01:50:42,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30311785] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:50:42,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:50:42,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:50:42,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958619079] [2024-10-24 01:50:42,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:50:42,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:50:42,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:50:42,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:50:42,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:50:42,020 INFO L87 Difference]: Start difference. First operand 1346 states and 2084 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:42,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:50:42,204 INFO L93 Difference]: Finished difference Result 2487 states and 3872 transitions. [2024-10-24 01:50:42,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:50:42,204 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-10-24 01:50:42,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:50:42,212 INFO L225 Difference]: With dead ends: 2487 [2024-10-24 01:50:42,212 INFO L226 Difference]: Without dead ends: 2266 [2024-10-24 01:50:42,214 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 [2024-10-24 01:50:42,214 INFO L432 NwaCegarLoop]: 316 mSDtfsCounter, 1086 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:50:42,215 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1086 Valid, 1263 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:50:42,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2266 states. [2024-10-24 01:50:42,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2266 to 1581. [2024-10-24 01:50:42,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 1.5525316455696203) internal successors, (2453), 1580 states have internal predecessors, (2453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:42,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 2453 transitions. [2024-10-24 01:50:42,257 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 2453 transitions. Word has length 76 [2024-10-24 01:50:42,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:50:42,258 INFO L471 AbstractCegarLoop]: Abstraction has 1581 states and 2453 transitions. [2024-10-24 01:50:42,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:42,258 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 2453 transitions. [2024-10-24 01:50:42,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-24 01:50:42,259 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:50:42,259 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:50:42,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 01:50:42,260 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:50:42,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:50:42,261 INFO L85 PathProgramCache]: Analyzing trace with hash -915452786, now seen corresponding path program 1 times [2024-10-24 01:50:42,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:50:42,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925700643] [2024-10-24 01:50:42,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:50:42,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:50:42,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:50:42,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:50:42,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:50:42,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925700643] [2024-10-24 01:50:42,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925700643] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:50:42,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:50:42,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:50:42,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147047711] [2024-10-24 01:50:42,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:50:42,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:50:42,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:50:42,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:50:42,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:50:42,387 INFO L87 Difference]: Start difference. First operand 1581 states and 2453 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:42,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:50:42,521 INFO L93 Difference]: Finished difference Result 3126 states and 4869 transitions. [2024-10-24 01:50:42,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:50:42,525 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-10-24 01:50:42,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:50:42,530 INFO L225 Difference]: With dead ends: 3126 [2024-10-24 01:50:42,531 INFO L226 Difference]: Without dead ends: 1581 [2024-10-24 01:50:42,534 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 [2024-10-24 01:50:42,536 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 555 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:50:42,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 109 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:50:42,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2024-10-24 01:50:42,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 1581. [2024-10-24 01:50:42,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 1.5354430379746835) internal successors, (2426), 1580 states have internal predecessors, (2426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:42,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 2426 transitions. [2024-10-24 01:50:42,568 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 2426 transitions. Word has length 77 [2024-10-24 01:50:42,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:50:42,568 INFO L471 AbstractCegarLoop]: Abstraction has 1581 states and 2426 transitions. [2024-10-24 01:50:42,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:42,569 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 2426 transitions. [2024-10-24 01:50:42,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-24 01:50:42,570 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:50:42,570 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:50:42,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 01:50:42,571 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:50:42,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:50:42,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1967987181, now seen corresponding path program 1 times [2024-10-24 01:50:42,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:50:42,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235360277] [2024-10-24 01:50:42,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:50:42,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:50:42,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:50:42,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:50:42,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:50:42,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235360277] [2024-10-24 01:50:42,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235360277] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:50:42,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:50:42,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:50:42,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475250721] [2024-10-24 01:50:42,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:50:42,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:50:42,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:50:42,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:50:42,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:50:42,715 INFO L87 Difference]: Start difference. First operand 1581 states and 2426 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:42,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:50:42,849 INFO L93 Difference]: Finished difference Result 3110 states and 4796 transitions. [2024-10-24 01:50:42,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:50:42,850 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2024-10-24 01:50:42,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:50:42,855 INFO L225 Difference]: With dead ends: 3110 [2024-10-24 01:50:42,856 INFO L226 Difference]: Without dead ends: 1581 [2024-10-24 01:50:42,858 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 [2024-10-24 01:50:42,859 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 504 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:50:42,860 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 141 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:50:42,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2024-10-24 01:50:42,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 1581. [2024-10-24 01:50:42,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 1.518354430379747) internal successors, (2399), 1580 states have internal predecessors, (2399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:42,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 2399 transitions. [2024-10-24 01:50:42,895 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 2399 transitions. Word has length 78 [2024-10-24 01:50:42,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:50:42,895 INFO L471 AbstractCegarLoop]: Abstraction has 1581 states and 2399 transitions. [2024-10-24 01:50:42,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:42,896 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 2399 transitions. [2024-10-24 01:50:42,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-10-24 01:50:42,897 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:50:42,897 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:50:42,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 01:50:42,897 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:50:42,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:50:42,898 INFO L85 PathProgramCache]: Analyzing trace with hash -732818130, now seen corresponding path program 1 times [2024-10-24 01:50:42,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:50:42,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368190758] [2024-10-24 01:50:42,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:50:42,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:50:42,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:50:43,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:50:43,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:50:43,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368190758] [2024-10-24 01:50:43,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368190758] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:50:43,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:50:43,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:50:43,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597390373] [2024-10-24 01:50:43,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:50:43,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:50:43,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:50:43,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:50:43,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:50:43,025 INFO L87 Difference]: Start difference. First operand 1581 states and 2399 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:43,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:50:43,146 INFO L93 Difference]: Finished difference Result 3118 states and 4752 transitions. [2024-10-24 01:50:43,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:50:43,147 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-10-24 01:50:43,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:50:43,152 INFO L225 Difference]: With dead ends: 3118 [2024-10-24 01:50:43,153 INFO L226 Difference]: Without dead ends: 1581 [2024-10-24 01:50:43,155 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 [2024-10-24 01:50:43,156 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 520 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:50:43,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 125 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:50:43,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2024-10-24 01:50:43,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 1581. [2024-10-24 01:50:43,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 1.5012658227848101) internal successors, (2372), 1580 states have internal predecessors, (2372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:43,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 2372 transitions. [2024-10-24 01:50:43,187 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 2372 transitions. Word has length 79 [2024-10-24 01:50:43,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:50:43,188 INFO L471 AbstractCegarLoop]: Abstraction has 1581 states and 2372 transitions. [2024-10-24 01:50:43,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:43,188 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 2372 transitions. [2024-10-24 01:50:43,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-24 01:50:43,190 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:50:43,190 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:50:43,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 01:50:43,191 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:50:43,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:50:43,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1431059085, now seen corresponding path program 1 times [2024-10-24 01:50:43,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:50:43,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995880689] [2024-10-24 01:50:43,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:50:43,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:50:43,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:50:43,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:50:43,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:50:43,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995880689] [2024-10-24 01:50:43,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995880689] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:50:43,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:50:43,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:50:43,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323993444] [2024-10-24 01:50:43,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:50:43,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:50:43,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:50:43,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:50:43,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:50:43,300 INFO L87 Difference]: Start difference. First operand 1581 states and 2372 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:43,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:50:43,438 INFO L93 Difference]: Finished difference Result 3114 states and 4694 transitions. [2024-10-24 01:50:43,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:50:43,438 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2024-10-24 01:50:43,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:50:43,443 INFO L225 Difference]: With dead ends: 3114 [2024-10-24 01:50:43,445 INFO L226 Difference]: Without dead ends: 1581 [2024-10-24 01:50:43,447 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 [2024-10-24 01:50:43,447 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 502 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:50:43,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [502 Valid, 133 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:50:43,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2024-10-24 01:50:43,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 1581. [2024-10-24 01:50:43,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 1.4841772151898733) internal successors, (2345), 1580 states have internal predecessors, (2345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:43,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 2345 transitions. [2024-10-24 01:50:43,476 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 2345 transitions. Word has length 80 [2024-10-24 01:50:43,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:50:43,476 INFO L471 AbstractCegarLoop]: Abstraction has 1581 states and 2345 transitions. [2024-10-24 01:50:43,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:43,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 2345 transitions. [2024-10-24 01:50:43,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-24 01:50:43,478 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:50:43,478 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:50:43,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 01:50:43,478 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:50:43,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:50:43,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1401205566, now seen corresponding path program 1 times [2024-10-24 01:50:43,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:50:43,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626903931] [2024-10-24 01:50:43,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:50:43,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:50:43,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:50:43,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:50:43,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:50:43,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626903931] [2024-10-24 01:50:43,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626903931] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:50:43,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:50:43,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:50:43,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489740462] [2024-10-24 01:50:43,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:50:43,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:50:43,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:50:43,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:50:43,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:50:43,579 INFO L87 Difference]: Start difference. First operand 1581 states and 2345 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:43,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:50:43,693 INFO L93 Difference]: Finished difference Result 3122 states and 4649 transitions. [2024-10-24 01:50:43,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:50:43,694 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-10-24 01:50:43,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:50:43,699 INFO L225 Difference]: With dead ends: 3122 [2024-10-24 01:50:43,699 INFO L226 Difference]: Without dead ends: 1581 [2024-10-24 01:50:43,701 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 [2024-10-24 01:50:43,702 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 519 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:50:43,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 117 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:50:43,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2024-10-24 01:50:43,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 1581. [2024-10-24 01:50:43,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 1.4670886075949368) internal successors, (2318), 1580 states have internal predecessors, (2318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:43,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 2318 transitions. [2024-10-24 01:50:43,734 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 2318 transitions. Word has length 81 [2024-10-24 01:50:43,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:50:43,735 INFO L471 AbstractCegarLoop]: Abstraction has 1581 states and 2318 transitions. [2024-10-24 01:50:43,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:43,735 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 2318 transitions. [2024-10-24 01:50:43,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-24 01:50:43,736 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:50:43,736 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:50:43,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 01:50:43,736 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:50:43,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:50:43,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1253837381, now seen corresponding path program 1 times [2024-10-24 01:50:43,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:50:43,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031054758] [2024-10-24 01:50:43,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:50:43,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:50:43,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:50:44,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:50:44,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:50:44,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031054758] [2024-10-24 01:50:44,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031054758] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:50:44,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:50:44,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 01:50:44,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755332305] [2024-10-24 01:50:44,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:50:44,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:50:44,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:50:44,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:50:44,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:50:44,050 INFO L87 Difference]: Start difference. First operand 1581 states and 2318 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:44,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:50:44,079 INFO L93 Difference]: Finished difference Result 1595 states and 2337 transitions. [2024-10-24 01:50:44,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:50:44,080 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-10-24 01:50:44,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:50:44,085 INFO L225 Difference]: With dead ends: 1595 [2024-10-24 01:50:44,086 INFO L226 Difference]: Without dead ends: 1593 [2024-10-24 01:50:44,087 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 [2024-10-24 01:50:44,087 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 0 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 740 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 [2024-10-24 01:50:44,088 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 740 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:50:44,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1593 states. [2024-10-24 01:50:44,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1593 to 1593. [2024-10-24 01:50:44,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1593 states, 1592 states have (on average 1.4591708542713568) internal successors, (2323), 1592 states have internal predecessors, (2323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:44,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1593 states to 1593 states and 2323 transitions. [2024-10-24 01:50:44,121 INFO L78 Accepts]: Start accepts. Automaton has 1593 states and 2323 transitions. Word has length 82 [2024-10-24 01:50:44,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:50:44,121 INFO L471 AbstractCegarLoop]: Abstraction has 1593 states and 2323 transitions. [2024-10-24 01:50:44,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:44,122 INFO L276 IsEmpty]: Start isEmpty. Operand 1593 states and 2323 transitions. [2024-10-24 01:50:44,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-24 01:50:44,123 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:50:44,123 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:50:44,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 01:50:44,123 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:50:44,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:50:44,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1092022775, now seen corresponding path program 1 times [2024-10-24 01:50:44,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:50:44,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084959084] [2024-10-24 01:50:44,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:50:44,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:50:44,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:50:44,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:50:44,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:50:44,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084959084] [2024-10-24 01:50:44,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084959084] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:50:44,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:50:44,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 01:50:44,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605460090] [2024-10-24 01:50:44,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:50:44,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 01:50:44,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:50:44,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 01:50:44,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-24 01:50:44,669 INFO L87 Difference]: Start difference. First operand 1593 states and 2323 transitions. Second operand has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:45,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:50:45,325 INFO L93 Difference]: Finished difference Result 4633 states and 6775 transitions. [2024-10-24 01:50:45,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:50:45,326 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-10-24 01:50:45,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:50:45,336 INFO L225 Difference]: With dead ends: 4633 [2024-10-24 01:50:45,337 INFO L226 Difference]: Without dead ends: 3144 [2024-10-24 01:50:45,340 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2024-10-24 01:50:45,340 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 575 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 01:50:45,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 643 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 01:50:45,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3144 states. [2024-10-24 01:50:45,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3144 to 1593. [2024-10-24 01:50:45,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1593 states, 1592 states have (on average 1.4566582914572865) internal successors, (2319), 1592 states have internal predecessors, (2319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:45,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1593 states to 1593 states and 2319 transitions. [2024-10-24 01:50:45,382 INFO L78 Accepts]: Start accepts. Automaton has 1593 states and 2319 transitions. Word has length 82 [2024-10-24 01:50:45,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:50:45,382 INFO L471 AbstractCegarLoop]: Abstraction has 1593 states and 2319 transitions. [2024-10-24 01:50:45,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:45,383 INFO L276 IsEmpty]: Start isEmpty. Operand 1593 states and 2319 transitions. [2024-10-24 01:50:45,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-24 01:50:45,384 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:50:45,384 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:50:45,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 01:50:45,384 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:50:45,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:50:45,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1679459822, now seen corresponding path program 1 times [2024-10-24 01:50:45,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:50:45,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852629675] [2024-10-24 01:50:45,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:50:45,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:50:45,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:50:45,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:50:45,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:50:45,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852629675] [2024-10-24 01:50:45,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852629675] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:50:45,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:50:45,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 01:50:45,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279785426] [2024-10-24 01:50:45,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:50:45,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 01:50:45,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:50:45,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 01:50:45,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-24 01:50:45,844 INFO L87 Difference]: Start difference. First operand 1593 states and 2319 transitions. Second operand has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:46,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:50:46,421 INFO L93 Difference]: Finished difference Result 4558 states and 6651 transitions. [2024-10-24 01:50:46,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:50:46,422 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-10-24 01:50:46,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:50:46,438 INFO L225 Difference]: With dead ends: 4558 [2024-10-24 01:50:46,440 INFO L226 Difference]: Without dead ends: 3114 [2024-10-24 01:50:46,444 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2024-10-24 01:50:46,444 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 907 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 907 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:50:46,445 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [907 Valid, 567 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:50:46,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3114 states. [2024-10-24 01:50:46,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3114 to 1593. [2024-10-24 01:50:46,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1593 states, 1592 states have (on average 1.4528894472361809) internal successors, (2313), 1592 states have internal predecessors, (2313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:46,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1593 states to 1593 states and 2313 transitions. [2024-10-24 01:50:46,488 INFO L78 Accepts]: Start accepts. Automaton has 1593 states and 2313 transitions. Word has length 83 [2024-10-24 01:50:46,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:50:46,489 INFO L471 AbstractCegarLoop]: Abstraction has 1593 states and 2313 transitions. [2024-10-24 01:50:46,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:46,489 INFO L276 IsEmpty]: Start isEmpty. Operand 1593 states and 2313 transitions. [2024-10-24 01:50:46,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-24 01:50:46,490 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:50:46,490 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:50:46,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 01:50:46,490 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:50:46,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:50:46,491 INFO L85 PathProgramCache]: Analyzing trace with hash 989691828, now seen corresponding path program 1 times [2024-10-24 01:50:46,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:50:46,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337595776] [2024-10-24 01:50:46,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:50:46,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:50:46,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:50:46,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:50:46,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:50:46,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337595776] [2024-10-24 01:50:46,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337595776] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:50:46,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:50:46,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 01:50:46,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006945612] [2024-10-24 01:50:46,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:50:46,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 01:50:46,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:50:46,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 01:50:46,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-24 01:50:46,922 INFO L87 Difference]: Start difference. First operand 1593 states and 2313 transitions. Second operand has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:47,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:50:47,552 INFO L93 Difference]: Finished difference Result 4603 states and 6707 transitions. [2024-10-24 01:50:47,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:50:47,552 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-10-24 01:50:47,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:50:47,561 INFO L225 Difference]: With dead ends: 4603 [2024-10-24 01:50:47,562 INFO L226 Difference]: Without dead ends: 3134 [2024-10-24 01:50:47,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2024-10-24 01:50:47,566 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 798 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 798 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 01:50:47,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [798 Valid, 725 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 01:50:47,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3134 states. [2024-10-24 01:50:47,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3134 to 1593. [2024-10-24 01:50:47,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1593 states, 1592 states have (on average 1.449748743718593) internal successors, (2308), 1592 states have internal predecessors, (2308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:47,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1593 states to 1593 states and 2308 transitions. [2024-10-24 01:50:47,601 INFO L78 Accepts]: Start accepts. Automaton has 1593 states and 2308 transitions. Word has length 83 [2024-10-24 01:50:47,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:50:47,601 INFO L471 AbstractCegarLoop]: Abstraction has 1593 states and 2308 transitions. [2024-10-24 01:50:47,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:47,601 INFO L276 IsEmpty]: Start isEmpty. Operand 1593 states and 2308 transitions. [2024-10-24 01:50:47,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-24 01:50:47,602 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:50:47,602 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:50:47,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 01:50:47,603 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:50:47,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:50:47,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1063713276, now seen corresponding path program 1 times [2024-10-24 01:50:47,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:50:47,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654351281] [2024-10-24 01:50:47,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:50:47,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:50:47,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:50:48,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:50:48,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:50:48,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654351281] [2024-10-24 01:50:48,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654351281] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:50:48,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:50:48,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 01:50:48,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514328863] [2024-10-24 01:50:48,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:50:48,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 01:50:48,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:50:48,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 01:50:48,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-24 01:50:48,075 INFO L87 Difference]: Start difference. First operand 1593 states and 2308 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 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) [2024-10-24 01:50:48,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:50:48,658 INFO L93 Difference]: Finished difference Result 4648 states and 6762 transitions. [2024-10-24 01:50:48,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:50:48,659 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 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 84 [2024-10-24 01:50:48,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:50:48,669 INFO L225 Difference]: With dead ends: 4648 [2024-10-24 01:50:48,673 INFO L226 Difference]: Without dead ends: 3149 [2024-10-24 01:50:48,680 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2024-10-24 01:50:48,682 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 607 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 607 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:50:48,682 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [607 Valid, 576 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:50:48,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3149 states. [2024-10-24 01:50:48,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3149 to 1593. [2024-10-24 01:50:48,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1593 states, 1592 states have (on average 1.4484924623115578) internal successors, (2306), 1592 states have internal predecessors, (2306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:48,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1593 states to 1593 states and 2306 transitions. [2024-10-24 01:50:48,729 INFO L78 Accepts]: Start accepts. Automaton has 1593 states and 2306 transitions. Word has length 84 [2024-10-24 01:50:48,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:50:48,729 INFO L471 AbstractCegarLoop]: Abstraction has 1593 states and 2306 transitions. [2024-10-24 01:50:48,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 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) [2024-10-24 01:50:48,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1593 states and 2306 transitions. [2024-10-24 01:50:48,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-24 01:50:48,730 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:50:48,730 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:50:48,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 01:50:48,731 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:50:48,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:50:48,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1440931595, now seen corresponding path program 1 times [2024-10-24 01:50:48,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:50:48,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076595532] [2024-10-24 01:50:48,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:50:48,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:50:48,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:50:49,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:50:49,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:50:49,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076595532] [2024-10-24 01:50:49,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076595532] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:50:49,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:50:49,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 01:50:49,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028426710] [2024-10-24 01:50:49,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:50:49,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 01:50:49,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:50:49,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 01:50:49,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:50:49,256 INFO L87 Difference]: Start difference. First operand 1593 states and 2306 transitions. Second operand has 11 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 10 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) [2024-10-24 01:50:49,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:50:49,835 INFO L93 Difference]: Finished difference Result 4593 states and 6682 transitions. [2024-10-24 01:50:49,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 01:50:49,835 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 10 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 85 [2024-10-24 01:50:49,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:50:49,841 INFO L225 Difference]: With dead ends: 4593 [2024-10-24 01:50:49,841 INFO L226 Difference]: Without dead ends: 3149 [2024-10-24 01:50:49,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=324, Unknown=0, NotChecked=0, Total=462 [2024-10-24 01:50:49,845 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 1048 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1048 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:50:49,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1048 Valid, 613 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:50:49,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3149 states. [2024-10-24 01:50:49,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3149 to 1653. [2024-10-24 01:50:49,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1653 states, 1652 states have (on average 1.4406779661016949) internal successors, (2380), 1652 states have internal predecessors, (2380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:49,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1653 states to 1653 states and 2380 transitions. [2024-10-24 01:50:49,892 INFO L78 Accepts]: Start accepts. Automaton has 1653 states and 2380 transitions. Word has length 85 [2024-10-24 01:50:49,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:50:49,892 INFO L471 AbstractCegarLoop]: Abstraction has 1653 states and 2380 transitions. [2024-10-24 01:50:49,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 10 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) [2024-10-24 01:50:49,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1653 states and 2380 transitions. [2024-10-24 01:50:49,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-24 01:50:49,893 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:50:49,894 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:50:49,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 01:50:49,894 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:50:49,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:50:49,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1293398352, now seen corresponding path program 1 times [2024-10-24 01:50:49,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:50:49,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797780684] [2024-10-24 01:50:49,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:50:49,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:50:49,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:50:50,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:50:50,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:50:50,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797780684] [2024-10-24 01:50:50,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797780684] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:50:50,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:50:50,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:50:50,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888745407] [2024-10-24 01:50:50,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:50:50,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 01:50:50,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:50:50,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 01:50:50,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-24 01:50:50,169 INFO L87 Difference]: Start difference. First operand 1653 states and 2380 transitions. Second operand has 8 states, 8 states have (on average 10.75) 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) [2024-10-24 01:50:50,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:50:50,582 INFO L93 Difference]: Finished difference Result 4540 states and 6619 transitions. [2024-10-24 01:50:50,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 01:50:50,583 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) 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 86 [2024-10-24 01:50:50,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:50:50,588 INFO L225 Difference]: With dead ends: 4540 [2024-10-24 01:50:50,588 INFO L226 Difference]: Without dead ends: 3037 [2024-10-24 01:50:50,590 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-10-24 01:50:50,591 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 498 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:50:50,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 669 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:50:50,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3037 states. [2024-10-24 01:50:50,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3037 to 1593. [2024-10-24 01:50:50,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1593 states, 1592 states have (on average 1.4478643216080402) internal successors, (2305), 1592 states have internal predecessors, (2305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:50,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1593 states to 1593 states and 2305 transitions. [2024-10-24 01:50:50,631 INFO L78 Accepts]: Start accepts. Automaton has 1593 states and 2305 transitions. Word has length 86 [2024-10-24 01:50:50,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:50:50,631 INFO L471 AbstractCegarLoop]: Abstraction has 1593 states and 2305 transitions. [2024-10-24 01:50:50,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) 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) [2024-10-24 01:50:50,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1593 states and 2305 transitions. [2024-10-24 01:50:50,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-24 01:50:50,633 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:50:50,633 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:50:50,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 01:50:50,633 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:50:50,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:50:50,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1733142020, now seen corresponding path program 1 times [2024-10-24 01:50:50,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:50:50,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370040889] [2024-10-24 01:50:50,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:50:50,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:50:50,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:50:51,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:50:51,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:50:51,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370040889] [2024-10-24 01:50:51,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370040889] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:50:51,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:50:51,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-24 01:50:51,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161866666] [2024-10-24 01:50:51,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:50:51,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 01:50:51,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:50:51,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 01:50:51,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-10-24 01:50:51,391 INFO L87 Difference]: Start difference. First operand 1593 states and 2305 transitions. Second operand has 14 states, 14 states have (on average 6.142857142857143) internal successors, (86), 13 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) [2024-10-24 01:50:52,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:50:52,382 INFO L93 Difference]: Finished difference Result 6493 states and 9492 transitions. [2024-10-24 01:50:52,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 01:50:52,383 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.142857142857143) internal successors, (86), 13 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 86 [2024-10-24 01:50:52,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:50:52,393 INFO L225 Difference]: With dead ends: 6493 [2024-10-24 01:50:52,394 INFO L226 Difference]: Without dead ends: 6027 [2024-10-24 01:50:52,396 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-10-24 01:50:52,397 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 843 mSDsluCounter, 2210 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 2500 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:50:52,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [843 Valid, 2500 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:50:52,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6027 states. [2024-10-24 01:50:52,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6027 to 1582. [2024-10-24 01:50:52,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1581 states have (on average 1.445920303605313) internal successors, (2286), 1581 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:52,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 2286 transitions. [2024-10-24 01:50:52,457 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 2286 transitions. Word has length 86 [2024-10-24 01:50:52,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:50:52,457 INFO L471 AbstractCegarLoop]: Abstraction has 1582 states and 2286 transitions. [2024-10-24 01:50:52,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.142857142857143) internal successors, (86), 13 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) [2024-10-24 01:50:52,458 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 2286 transitions. [2024-10-24 01:50:52,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-24 01:50:52,459 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:50:52,459 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:50:52,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 01:50:52,460 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:50:52,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:50:52,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1249822970, now seen corresponding path program 1 times [2024-10-24 01:50:52,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:50:52,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011141607] [2024-10-24 01:50:52,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:50:52,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:50:52,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:50:53,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:50:53,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:50:53,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011141607] [2024-10-24 01:50:53,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011141607] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:50:53,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:50:53,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 01:50:53,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021053876] [2024-10-24 01:50:53,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:50:53,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 01:50:53,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:50:53,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 01:50:53,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-24 01:50:53,151 INFO L87 Difference]: Start difference. First operand 1582 states and 2286 transitions. Second operand has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 12 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) [2024-10-24 01:50:53,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:50:53,824 INFO L93 Difference]: Finished difference Result 3499 states and 5099 transitions. [2024-10-24 01:50:53,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:50:53,824 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 12 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 86 [2024-10-24 01:50:53,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:50:53,830 INFO L225 Difference]: With dead ends: 3499 [2024-10-24 01:50:53,830 INFO L226 Difference]: Without dead ends: 3023 [2024-10-24 01:50:53,832 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-10-24 01:50:53,833 INFO L432 NwaCegarLoop]: 255 mSDtfsCounter, 690 mSDsluCounter, 1554 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 1809 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:50:53,833 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 1809 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:50:53,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3023 states. [2024-10-24 01:50:53,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3023 to 1556. [2024-10-24 01:50:53,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 1.4469453376205788) internal successors, (2250), 1555 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:53,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 2250 transitions. [2024-10-24 01:50:53,862 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 2250 transitions. Word has length 86 [2024-10-24 01:50:53,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:50:53,862 INFO L471 AbstractCegarLoop]: Abstraction has 1556 states and 2250 transitions. [2024-10-24 01:50:53,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 12 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) [2024-10-24 01:50:53,862 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 2250 transitions. [2024-10-24 01:50:53,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-24 01:50:53,863 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:50:53,863 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:50:53,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-24 01:50:53,864 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:50:53,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:50:53,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1781483708, now seen corresponding path program 1 times [2024-10-24 01:50:53,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:50:53,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022752368] [2024-10-24 01:50:53,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:50:53,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:50:53,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:50:54,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:50:54,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:50:54,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022752368] [2024-10-24 01:50:54,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022752368] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:50:54,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:50:54,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 01:50:54,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023423315] [2024-10-24 01:50:54,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:50:54,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 01:50:54,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:50:54,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 01:50:54,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-24 01:50:54,453 INFO L87 Difference]: Start difference. First operand 1556 states and 2250 transitions. Second operand has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 12 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) [2024-10-24 01:50:55,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:50:55,044 INFO L93 Difference]: Finished difference Result 3451 states and 5034 transitions. [2024-10-24 01:50:55,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:50:55,044 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 12 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 86 [2024-10-24 01:50:55,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:50:55,050 INFO L225 Difference]: With dead ends: 3451 [2024-10-24 01:50:55,050 INFO L226 Difference]: Without dead ends: 3005 [2024-10-24 01:50:55,052 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-10-24 01:50:55,052 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 812 mSDsluCounter, 1028 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 1186 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:50:55,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [812 Valid, 1186 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:50:55,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3005 states. [2024-10-24 01:50:55,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3005 to 1555. [2024-10-24 01:50:55,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1554 states have (on average 1.4446589446589446) internal successors, (2245), 1554 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:55,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2245 transitions. [2024-10-24 01:50:55,083 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2245 transitions. Word has length 86 [2024-10-24 01:50:55,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:50:55,083 INFO L471 AbstractCegarLoop]: Abstraction has 1555 states and 2245 transitions. [2024-10-24 01:50:55,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 12 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) [2024-10-24 01:50:55,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2245 transitions. [2024-10-24 01:50:55,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-24 01:50:55,084 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:50:55,085 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:50:55,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-24 01:50:55,085 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:50:55,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:50:55,086 INFO L85 PathProgramCache]: Analyzing trace with hash 298019482, now seen corresponding path program 1 times [2024-10-24 01:50:55,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:50:55,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341375769] [2024-10-24 01:50:55,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:50:55,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:50:55,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:50:55,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:50:55,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:50:55,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341375769] [2024-10-24 01:50:55,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341375769] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:50:55,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:50:55,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 01:50:55,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565708835] [2024-10-24 01:50:55,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:50:55,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 01:50:55,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:50:55,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 01:50:55,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-10-24 01:50:55,663 INFO L87 Difference]: Start difference. First operand 1555 states and 2245 transitions. Second operand has 12 states, 12 states have (on average 7.166666666666667) internal successors, (86), 11 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) [2024-10-24 01:50:56,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:50:56,250 INFO L93 Difference]: Finished difference Result 6344 states and 9277 transitions. [2024-10-24 01:50:56,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 01:50:56,251 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.166666666666667) internal successors, (86), 11 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 86 [2024-10-24 01:50:56,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:50:56,262 INFO L225 Difference]: With dead ends: 6344 [2024-10-24 01:50:56,262 INFO L226 Difference]: Without dead ends: 5873 [2024-10-24 01:50:56,265 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462 [2024-10-24 01:50:56,266 INFO L432 NwaCegarLoop]: 419 mSDtfsCounter, 905 mSDsluCounter, 2026 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 2445 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:50:56,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [905 Valid, 2445 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:50:56,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5873 states. [2024-10-24 01:50:56,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5873 to 1528. [2024-10-24 01:50:56,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1528 states, 1527 states have (on average 1.4479371316306484) internal successors, (2211), 1527 states have internal predecessors, (2211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:56,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1528 states to 1528 states and 2211 transitions. [2024-10-24 01:50:56,314 INFO L78 Accepts]: Start accepts. Automaton has 1528 states and 2211 transitions. Word has length 86 [2024-10-24 01:50:56,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:50:56,314 INFO L471 AbstractCegarLoop]: Abstraction has 1528 states and 2211 transitions. [2024-10-24 01:50:56,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.166666666666667) internal successors, (86), 11 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) [2024-10-24 01:50:56,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1528 states and 2211 transitions. [2024-10-24 01:50:56,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-24 01:50:56,315 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:50:56,316 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:50:56,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-24 01:50:56,316 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:50:56,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:50:56,316 INFO L85 PathProgramCache]: Analyzing trace with hash 30584482, now seen corresponding path program 1 times [2024-10-24 01:50:56,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:50:56,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125445047] [2024-10-24 01:50:56,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:50:56,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:50:56,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:50:56,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:50:56,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:50:56,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125445047] [2024-10-24 01:50:56,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125445047] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:50:56,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:50:56,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:50:56,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981764224] [2024-10-24 01:50:56,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:50:56,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:50:56,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:50:56,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:50:56,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:50:56,459 INFO L87 Difference]: Start difference. First operand 1528 states and 2211 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 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) [2024-10-24 01:50:56,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:50:56,491 INFO L93 Difference]: Finished difference Result 3557 states and 5196 transitions. [2024-10-24 01:50:56,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:50:56,492 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 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 87 [2024-10-24 01:50:56,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:50:56,494 INFO L225 Difference]: With dead ends: 3557 [2024-10-24 01:50:56,494 INFO L226 Difference]: Without dead ends: 2119 [2024-10-24 01:50:56,496 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:50:56,496 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 88 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:50:56,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 429 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:50:56,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2119 states. [2024-10-24 01:50:56,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2119 to 2106. [2024-10-24 01:50:56,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2106 states, 2105 states have (on average 1.4451306413301663) internal successors, (3042), 2105 states have internal predecessors, (3042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:50:56,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2106 states to 2106 states and 3042 transitions. [2024-10-24 01:50:56,520 INFO L78 Accepts]: Start accepts. Automaton has 2106 states and 3042 transitions. Word has length 87 [2024-10-24 01:50:56,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:50:56,521 INFO L471 AbstractCegarLoop]: Abstraction has 2106 states and 3042 transitions. [2024-10-24 01:50:56,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 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) [2024-10-24 01:50:56,521 INFO L276 IsEmpty]: Start isEmpty. Operand 2106 states and 3042 transitions. [2024-10-24 01:50:56,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-24 01:50:56,522 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:50:56,522 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:50:56,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-24 01:50:56,522 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:50:56,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:50:56,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1945258374, now seen corresponding path program 1 times [2024-10-24 01:50:56,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:50:56,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187247250] [2024-10-24 01:50:56,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:50:56,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:50:56,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:50:58,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:50:58,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:50:58,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187247250] [2024-10-24 01:50:58,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187247250] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:50:58,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:50:58,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2024-10-24 01:50:58,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657707938] [2024-10-24 01:50:58,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:50:58,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-10-24 01:50:58,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:50:58,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-10-24 01:50:58,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=857, Unknown=0, NotChecked=0, Total=930 [2024-10-24 01:50:58,590 INFO L87 Difference]: Start difference. First operand 2106 states and 3042 transitions. Second operand has 31 states, 31 states have (on average 2.806451612903226) internal successors, (87), 31 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) [2024-10-24 01:51:03,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:51:03,455 INFO L93 Difference]: Finished difference Result 14298 states and 20829 transitions. [2024-10-24 01:51:03,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-24 01:51:03,455 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.806451612903226) internal successors, (87), 31 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 87 [2024-10-24 01:51:03,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:51:03,475 INFO L225 Difference]: With dead ends: 14298 [2024-10-24 01:51:03,475 INFO L226 Difference]: Without dead ends: 12280 [2024-10-24 01:51:03,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=455, Invalid=2737, Unknown=0, NotChecked=0, Total=3192 [2024-10-24 01:51:03,485 INFO L432 NwaCegarLoop]: 525 mSDtfsCounter, 1351 mSDsluCounter, 9062 mSDsCounter, 0 mSdLazyCounter, 6095 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1351 SdHoareTripleChecker+Valid, 9587 SdHoareTripleChecker+Invalid, 6102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 6095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:51:03,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1351 Valid, 9587 Invalid, 6102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 6095 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-10-24 01:51:03,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12280 states. [2024-10-24 01:51:03,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12280 to 2127. [2024-10-24 01:51:03,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2127 states, 2126 states have (on average 1.442615239887112) internal successors, (3067), 2126 states have internal predecessors, (3067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:51:03,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2127 states to 2127 states and 3067 transitions. [2024-10-24 01:51:03,574 INFO L78 Accepts]: Start accepts. Automaton has 2127 states and 3067 transitions. Word has length 87 [2024-10-24 01:51:03,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:51:03,574 INFO L471 AbstractCegarLoop]: Abstraction has 2127 states and 3067 transitions. [2024-10-24 01:51:03,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.806451612903226) internal successors, (87), 31 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) [2024-10-24 01:51:03,574 INFO L276 IsEmpty]: Start isEmpty. Operand 2127 states and 3067 transitions. [2024-10-24 01:51:03,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-24 01:51:03,575 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:51:03,575 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:51:03,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-24 01:51:03,575 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:51:03,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:51:03,576 INFO L85 PathProgramCache]: Analyzing trace with hash 531118648, now seen corresponding path program 1 times [2024-10-24 01:51:03,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:51:03,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965268239] [2024-10-24 01:51:03,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:51:03,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:51:03,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:51:06,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:51:06,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:51:06,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965268239] [2024-10-24 01:51:06,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965268239] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:51:06,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:51:06,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2024-10-24 01:51:06,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387612001] [2024-10-24 01:51:06,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:51:06,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-10-24 01:51:06,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:51:06,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-10-24 01:51:06,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=972, Unknown=0, NotChecked=0, Total=1056 [2024-10-24 01:51:06,671 INFO L87 Difference]: Start difference. First operand 2127 states and 3067 transitions. Second operand has 33 states, 33 states have (on average 2.6666666666666665) internal successors, (88), 32 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:51:14,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:51:14,434 INFO L93 Difference]: Finished difference Result 14469 states and 21094 transitions. [2024-10-24 01:51:14,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-10-24 01:51:14,435 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.6666666666666665) internal successors, (88), 32 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2024-10-24 01:51:14,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:51:14,456 INFO L225 Difference]: With dead ends: 14469 [2024-10-24 01:51:14,457 INFO L226 Difference]: Without dead ends: 13814 [2024-10-24 01:51:14,463 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 564 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=585, Invalid=3321, Unknown=0, NotChecked=0, Total=3906 [2024-10-24 01:51:14,464 INFO L432 NwaCegarLoop]: 543 mSDtfsCounter, 1717 mSDsluCounter, 10622 mSDsCounter, 0 mSdLazyCounter, 7886 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1717 SdHoareTripleChecker+Valid, 11165 SdHoareTripleChecker+Invalid, 7896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 7886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-10-24 01:51:14,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1717 Valid, 11165 Invalid, 7896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 7886 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-10-24 01:51:14,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13814 states. [2024-10-24 01:51:14,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13814 to 2136. [2024-10-24 01:51:14,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2136 states, 2135 states have (on average 1.4416861826697893) internal successors, (3078), 2135 states have internal predecessors, (3078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:51:14,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2136 states to 2136 states and 3078 transitions. [2024-10-24 01:51:14,550 INFO L78 Accepts]: Start accepts. Automaton has 2136 states and 3078 transitions. Word has length 88 [2024-10-24 01:51:14,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:51:14,550 INFO L471 AbstractCegarLoop]: Abstraction has 2136 states and 3078 transitions. [2024-10-24 01:51:14,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 2.6666666666666665) internal successors, (88), 32 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:51:14,550 INFO L276 IsEmpty]: Start isEmpty. Operand 2136 states and 3078 transitions. [2024-10-24 01:51:14,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-24 01:51:14,551 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:51:14,551 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:51:14,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-24 01:51:14,552 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:51:14,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:51:14,552 INFO L85 PathProgramCache]: Analyzing trace with hash 600455321, now seen corresponding path program 1 times [2024-10-24 01:51:14,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:51:14,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726939207] [2024-10-24 01:51:14,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:51:14,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:51:14,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:51:15,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:51:15,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:51:15,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726939207] [2024-10-24 01:51:15,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726939207] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:51:15,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:51:15,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 01:51:15,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252141017] [2024-10-24 01:51:15,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:51:15,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 01:51:15,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:51:15,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 01:51:15,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-10-24 01:51:15,056 INFO L87 Difference]: Start difference. First operand 2136 states and 3078 transitions. Second operand has 13 states, 13 states have (on average 6.769230769230769) internal successors, (88), 12 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:51:15,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:51:15,437 INFO L93 Difference]: Finished difference Result 4817 states and 6993 transitions. [2024-10-24 01:51:15,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:51:15,438 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.769230769230769) internal successors, (88), 12 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2024-10-24 01:51:15,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:51:15,441 INFO L225 Difference]: With dead ends: 4817 [2024-10-24 01:51:15,442 INFO L226 Difference]: Without dead ends: 4153 [2024-10-24 01:51:15,443 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=130, Invalid=422, Unknown=0, NotChecked=0, Total=552 [2024-10-24 01:51:15,443 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 617 mSDsluCounter, 1342 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 1581 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:51:15,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [617 Valid, 1581 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:51:15,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4153 states. [2024-10-24 01:51:15,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4153 to 2116. [2024-10-24 01:51:15,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2116 states, 2115 states have (on average 1.443498817966903) internal successors, (3053), 2115 states have internal predecessors, (3053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:51:15,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2116 states to 2116 states and 3053 transitions. [2024-10-24 01:51:15,497 INFO L78 Accepts]: Start accepts. Automaton has 2116 states and 3053 transitions. Word has length 88 [2024-10-24 01:51:15,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:51:15,497 INFO L471 AbstractCegarLoop]: Abstraction has 2116 states and 3053 transitions. [2024-10-24 01:51:15,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.769230769230769) internal successors, (88), 12 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:51:15,497 INFO L276 IsEmpty]: Start isEmpty. Operand 2116 states and 3053 transitions. [2024-10-24 01:51:15,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-24 01:51:15,499 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:51:15,499 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:51:15,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-24 01:51:15,499 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:51:15,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:51:15,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1367660145, now seen corresponding path program 1 times [2024-10-24 01:51:15,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:51:15,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534122956] [2024-10-24 01:51:15,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:51:15,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:51:15,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:51:15,611 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:51:15,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:51:15,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534122956] [2024-10-24 01:51:15,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534122956] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:51:15,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:51:15,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:51:15,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734235636] [2024-10-24 01:51:15,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:51:15,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:51:15,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:51:15,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:51:15,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:51:15,614 INFO L87 Difference]: Start difference. First operand 2116 states and 3053 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:51:15,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:51:15,636 INFO L93 Difference]: Finished difference Result 4368 states and 6346 transitions. [2024-10-24 01:51:15,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:51:15,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2024-10-24 01:51:15,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:51:15,640 INFO L225 Difference]: With dead ends: 4368 [2024-10-24 01:51:15,640 INFO L226 Difference]: Without dead ends: 2929 [2024-10-24 01:51:15,643 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 [2024-10-24 01:51:15,643 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 80 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:51:15,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 390 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:51:15,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2929 states. [2024-10-24 01:51:15,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2929 to 2819. [2024-10-24 01:51:15,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2819 states, 2818 states have (on average 1.4435770049680625) internal successors, (4068), 2818 states have internal predecessors, (4068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:51:15,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2819 states to 2819 states and 4068 transitions. [2024-10-24 01:51:15,680 INFO L78 Accepts]: Start accepts. Automaton has 2819 states and 4068 transitions. Word has length 116 [2024-10-24 01:51:15,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:51:15,680 INFO L471 AbstractCegarLoop]: Abstraction has 2819 states and 4068 transitions. [2024-10-24 01:51:15,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:51:15,680 INFO L276 IsEmpty]: Start isEmpty. Operand 2819 states and 4068 transitions. [2024-10-24 01:51:15,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-24 01:51:15,681 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:51:15,682 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:51:15,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-24 01:51:15,682 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:51:15,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:51:15,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1259976626, now seen corresponding path program 1 times [2024-10-24 01:51:15,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:51:15,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097005748] [2024-10-24 01:51:15,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:51:15,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:51:15,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:51:15,816 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:51:15,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:51:15,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097005748] [2024-10-24 01:51:15,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097005748] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:51:15,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:51:15,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:51:15,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129663525] [2024-10-24 01:51:15,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:51:15,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:51:15,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:51:15,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:51:15,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:51:15,818 INFO L87 Difference]: Start difference. First operand 2819 states and 4068 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:51:16,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:51:16,089 INFO L93 Difference]: Finished difference Result 10241 states and 14972 transitions. [2024-10-24 01:51:16,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 01:51:16,090 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2024-10-24 01:51:16,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:51:16,099 INFO L225 Difference]: With dead ends: 10241 [2024-10-24 01:51:16,099 INFO L226 Difference]: Without dead ends: 7530 [2024-10-24 01:51:16,104 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-10-24 01:51:16,105 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 926 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:51:16,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 340 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:51:16,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7530 states. [2024-10-24 01:51:16,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7530 to 6028. [2024-10-24 01:51:16,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6028 states, 6027 states have (on average 1.446656711465074) internal successors, (8719), 6027 states have internal predecessors, (8719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:51:16,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6028 states to 6028 states and 8719 transitions. [2024-10-24 01:51:16,190 INFO L78 Accepts]: Start accepts. Automaton has 6028 states and 8719 transitions. Word has length 116 [2024-10-24 01:51:16,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:51:16,190 INFO L471 AbstractCegarLoop]: Abstraction has 6028 states and 8719 transitions. [2024-10-24 01:51:16,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:51:16,190 INFO L276 IsEmpty]: Start isEmpty. Operand 6028 states and 8719 transitions. [2024-10-24 01:51:16,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-24 01:51:16,191 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:51:16,192 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:51:16,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-24 01:51:16,192 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:51:16,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:51:16,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1768744760, now seen corresponding path program 1 times [2024-10-24 01:51:16,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:51:16,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900988401] [2024-10-24 01:51:16,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:51:16,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:51:16,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:51:16,352 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:51:16,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:51:16,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900988401] [2024-10-24 01:51:16,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900988401] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:51:16,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:51:16,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:51:16,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077304260] [2024-10-24 01:51:16,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:51:16,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:51:16,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:51:16,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:51:16,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:51:16,354 INFO L87 Difference]: Start difference. First operand 6028 states and 8719 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:51:16,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:51:16,593 INFO L93 Difference]: Finished difference Result 19868 states and 28925 transitions. [2024-10-24 01:51:16,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 01:51:16,594 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2024-10-24 01:51:16,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:51:16,607 INFO L225 Difference]: With dead ends: 19868 [2024-10-24 01:51:16,607 INFO L226 Difference]: Without dead ends: 13948 [2024-10-24 01:51:16,615 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-10-24 01:51:16,616 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 841 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 841 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:51:16,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [841 Valid, 338 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:51:16,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13948 states. [2024-10-24 01:51:16,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13948 to 12946. [2024-10-24 01:51:16,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12946 states, 12945 states have (on average 1.446195442255697) internal successors, (18721), 12945 states have internal predecessors, (18721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:51:16,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12946 states to 12946 states and 18721 transitions. [2024-10-24 01:51:16,802 INFO L78 Accepts]: Start accepts. Automaton has 12946 states and 18721 transitions. Word has length 116 [2024-10-24 01:51:16,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:51:16,803 INFO L471 AbstractCegarLoop]: Abstraction has 12946 states and 18721 transitions. [2024-10-24 01:51:16,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:51:16,804 INFO L276 IsEmpty]: Start isEmpty. Operand 12946 states and 18721 transitions. [2024-10-24 01:51:16,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-24 01:51:16,805 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:51:16,805 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:51:16,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-24 01:51:16,806 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:51:16,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:51:16,806 INFO L85 PathProgramCache]: Analyzing trace with hash 155045804, now seen corresponding path program 1 times [2024-10-24 01:51:16,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:51:16,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481324399] [2024-10-24 01:51:16,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:51:16,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:51:16,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:51:16,959 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:51:16,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:51:16,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481324399] [2024-10-24 01:51:16,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481324399] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:51:16,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:51:16,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:51:16,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844730302] [2024-10-24 01:51:16,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:51:16,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:51:16,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:51:16,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:51:16,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:51:16,962 INFO L87 Difference]: Start difference. First operand 12946 states and 18721 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:51:17,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:51:17,305 INFO L93 Difference]: Finished difference Result 48422 states and 70531 transitions. [2024-10-24 01:51:17,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 01:51:17,306 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2024-10-24 01:51:17,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:51:17,353 INFO L225 Difference]: With dead ends: 48422 [2024-10-24 01:51:17,353 INFO L226 Difference]: Without dead ends: 35584 [2024-10-24 01:51:17,377 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-10-24 01:51:17,377 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 1011 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:51:17,378 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1011 Valid, 342 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:51:17,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35584 states. [2024-10-24 01:51:17,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35584 to 27782. [2024-10-24 01:51:17,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27782 states, 27781 states have (on average 1.4443324574349377) internal successors, (40125), 27781 states have internal predecessors, (40125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:51:17,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27782 states to 27782 states and 40125 transitions. [2024-10-24 01:51:17,881 INFO L78 Accepts]: Start accepts. Automaton has 27782 states and 40125 transitions. Word has length 116 [2024-10-24 01:51:17,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:51:17,881 INFO L471 AbstractCegarLoop]: Abstraction has 27782 states and 40125 transitions. [2024-10-24 01:51:17,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:51:17,882 INFO L276 IsEmpty]: Start isEmpty. Operand 27782 states and 40125 transitions. [2024-10-24 01:51:17,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-24 01:51:17,883 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:51:17,883 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:51:17,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-24 01:51:17,883 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:51:17,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:51:17,884 INFO L85 PathProgramCache]: Analyzing trace with hash 214642470, now seen corresponding path program 1 times [2024-10-24 01:51:17,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:51:17,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631283538] [2024-10-24 01:51:17,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:51:17,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:51:17,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:51:18,019 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:51:18,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:51:18,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631283538] [2024-10-24 01:51:18,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631283538] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:51:18,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:51:18,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:51:18,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108000108] [2024-10-24 01:51:18,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:51:18,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:51:18,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:51:18,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:51:18,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:51:18,022 INFO L87 Difference]: Start difference. First operand 27782 states and 40125 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:51:18,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:51:18,523 INFO L93 Difference]: Finished difference Result 63033 states and 91169 transitions. [2024-10-24 01:51:18,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 01:51:18,524 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2024-10-24 01:51:18,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:51:18,559 INFO L225 Difference]: With dead ends: 63033 [2024-10-24 01:51:18,559 INFO L226 Difference]: Without dead ends: 35359 [2024-10-24 01:51:18,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-10-24 01:51:18,580 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 736 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:51:18,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 431 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:51:18,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35359 states. [2024-10-24 01:51:18,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35359 to 29663. [2024-10-24 01:51:18,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29663 states, 29662 states have (on average 1.437293506843773) internal successors, (42633), 29662 states have internal predecessors, (42633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:51:19,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29663 states to 29663 states and 42633 transitions. [2024-10-24 01:51:19,139 INFO L78 Accepts]: Start accepts. Automaton has 29663 states and 42633 transitions. Word has length 116 [2024-10-24 01:51:19,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:51:19,139 INFO L471 AbstractCegarLoop]: Abstraction has 29663 states and 42633 transitions. [2024-10-24 01:51:19,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:51:19,140 INFO L276 IsEmpty]: Start isEmpty. Operand 29663 states and 42633 transitions. [2024-10-24 01:51:19,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-24 01:51:19,162 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:51:19,162 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:51:19,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-24 01:51:19,163 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:51:19,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:51:19,164 INFO L85 PathProgramCache]: Analyzing trace with hash -561689225, now seen corresponding path program 1 times [2024-10-24 01:51:19,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:51:19,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629093550] [2024-10-24 01:51:19,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:51:19,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:51:19,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:51:19,358 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-10-24 01:51:19,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:51:19,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629093550] [2024-10-24 01:51:19,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629093550] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:51:19,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:51:19,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:51:19,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87682303] [2024-10-24 01:51:19,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:51:19,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:51:19,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:51:19,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:51:19,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:51:19,361 INFO L87 Difference]: Start difference. First operand 29663 states and 42633 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:51:19,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:51:19,647 INFO L93 Difference]: Finished difference Result 57099 states and 81923 transitions. [2024-10-24 01:51:19,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:51:19,647 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 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 143 [2024-10-24 01:51:19,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:51:19,678 INFO L225 Difference]: With dead ends: 57099 [2024-10-24 01:51:19,678 INFO L226 Difference]: Without dead ends: 27550 [2024-10-24 01:51:19,696 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 [2024-10-24 01:51:19,696 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 77 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:51:19,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 381 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:51:19,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27550 states. [2024-10-24 01:51:20,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27550 to 26918. [2024-10-24 01:51:20,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26918 states, 26917 states have (on average 1.42560463647509) internal successors, (38373), 26917 states have internal predecessors, (38373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:51:20,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26918 states to 26918 states and 38373 transitions. [2024-10-24 01:51:20,163 INFO L78 Accepts]: Start accepts. Automaton has 26918 states and 38373 transitions. Word has length 143 [2024-10-24 01:51:20,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:51:20,163 INFO L471 AbstractCegarLoop]: Abstraction has 26918 states and 38373 transitions. [2024-10-24 01:51:20,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:51:20,163 INFO L276 IsEmpty]: Start isEmpty. Operand 26918 states and 38373 transitions. [2024-10-24 01:51:20,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-24 01:51:20,170 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:51:20,170 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:51:20,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-10-24 01:51:20,171 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:51:20,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:51:20,171 INFO L85 PathProgramCache]: Analyzing trace with hash -386665244, now seen corresponding path program 1 times [2024-10-24 01:51:20,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:51:20,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640649483] [2024-10-24 01:51:20,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:51:20,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:51:20,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:51:20,303 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-24 01:51:20,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:51:20,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640649483] [2024-10-24 01:51:20,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640649483] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:51:20,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:51:20,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:51:20,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846568507] [2024-10-24 01:51:20,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:51:20,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:51:20,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:51:20,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:51:20,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:51:20,305 INFO L87 Difference]: Start difference. First operand 26918 states and 38373 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:51:20,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:51:20,559 INFO L93 Difference]: Finished difference Result 51630 states and 73431 transitions. [2024-10-24 01:51:20,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:51:20,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 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 144 [2024-10-24 01:51:20,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:51:20,595 INFO L225 Difference]: With dead ends: 51630 [2024-10-24 01:51:20,595 INFO L226 Difference]: Without dead ends: 24820 [2024-10-24 01:51:20,617 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 [2024-10-24 01:51:20,618 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 70 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:51:20,618 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 383 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:51:20,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24820 states. [2024-10-24 01:51:20,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24820 to 24218. [2024-10-24 01:51:20,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24218 states, 24217 states have (on average 1.4111161580707767) internal successors, (34173), 24217 states have internal predecessors, (34173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:51:21,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24218 states to 24218 states and 34173 transitions. [2024-10-24 01:51:21,040 INFO L78 Accepts]: Start accepts. Automaton has 24218 states and 34173 transitions. Word has length 144 [2024-10-24 01:51:21,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:51:21,040 INFO L471 AbstractCegarLoop]: Abstraction has 24218 states and 34173 transitions. [2024-10-24 01:51:21,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:51:21,040 INFO L276 IsEmpty]: Start isEmpty. Operand 24218 states and 34173 transitions. [2024-10-24 01:51:21,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-24 01:51:21,047 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:51:21,047 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:51:21,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-10-24 01:51:21,048 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:51:21,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:51:21,048 INFO L85 PathProgramCache]: Analyzing trace with hash 208898512, now seen corresponding path program 1 times [2024-10-24 01:51:21,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:51:21,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093962246] [2024-10-24 01:51:21,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:51:21,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:51:21,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:51:21,224 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 01:51:21,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:51:21,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093962246] [2024-10-24 01:51:21,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093962246] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:51:21,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:51:21,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:51:21,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393404951] [2024-10-24 01:51:21,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:51:21,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:51:21,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:51:21,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:51:21,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:51:21,227 INFO L87 Difference]: Start difference. First operand 24218 states and 34173 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:51:21,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:51:21,359 INFO L93 Difference]: Finished difference Result 46230 states and 65031 transitions. [2024-10-24 01:51:21,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:51:21,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 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 145 [2024-10-24 01:51:21,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:51:21,386 INFO L225 Difference]: With dead ends: 46230 [2024-10-24 01:51:21,387 INFO L226 Difference]: Without dead ends: 22120 [2024-10-24 01:51:21,409 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 [2024-10-24 01:51:21,410 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 63 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:51:21,410 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 383 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:51:21,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22120 states. [2024-10-24 01:51:21,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22120 to 21518. [2024-10-24 01:51:21,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21518 states, 21517 states have (on average 1.3929915880466608) internal successors, (29973), 21517 states have internal predecessors, (29973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:51:21,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21518 states to 21518 states and 29973 transitions. [2024-10-24 01:51:21,736 INFO L78 Accepts]: Start accepts. Automaton has 21518 states and 29973 transitions. Word has length 145 [2024-10-24 01:51:21,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:51:21,736 INFO L471 AbstractCegarLoop]: Abstraction has 21518 states and 29973 transitions. [2024-10-24 01:51:21,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:51:21,737 INFO L276 IsEmpty]: Start isEmpty. Operand 21518 states and 29973 transitions. [2024-10-24 01:51:21,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-10-24 01:51:21,740 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:51:21,741 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:51:21,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-10-24 01:51:21,741 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:51:21,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:51:21,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1426482543, now seen corresponding path program 1 times [2024-10-24 01:51:21,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:51:21,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613914973] [2024-10-24 01:51:21,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:51:21,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:51:21,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:51:22,008 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-24 01:51:22,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:51:22,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613914973] [2024-10-24 01:51:22,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613914973] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:51:22,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:51:22,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:51:22,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201051172] [2024-10-24 01:51:22,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:51:22,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:51:22,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:51:22,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:51:22,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:51:22,011 INFO L87 Difference]: Start difference. First operand 21518 states and 29973 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:51:22,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:51:22,159 INFO L93 Difference]: Finished difference Result 62138 states and 86087 transitions. [2024-10-24 01:51:22,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:51:22,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 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 146 [2024-10-24 01:51:22,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:51:22,217 INFO L225 Difference]: With dead ends: 62138 [2024-10-24 01:51:22,218 INFO L226 Difference]: Without dead ends: 40728 [2024-10-24 01:51:22,246 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 [2024-10-24 01:51:22,246 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 56 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:51:22,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 385 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:51:22,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40728 states. [2024-10-24 01:51:22,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40728 to 37926. [2024-10-24 01:51:22,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37926 states, 37925 states have (on average 1.377165458141068) internal successors, (52229), 37925 states have internal predecessors, (52229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:51:22,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37926 states to 37926 states and 52229 transitions. [2024-10-24 01:51:22,788 INFO L78 Accepts]: Start accepts. Automaton has 37926 states and 52229 transitions. Word has length 146 [2024-10-24 01:51:22,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:51:22,789 INFO L471 AbstractCegarLoop]: Abstraction has 37926 states and 52229 transitions. [2024-10-24 01:51:22,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:51:22,789 INFO L276 IsEmpty]: Start isEmpty. Operand 37926 states and 52229 transitions. [2024-10-24 01:51:22,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-24 01:51:22,794 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:51:22,794 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:51:22,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-10-24 01:51:22,795 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:51:22,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:51:22,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1319753617, now seen corresponding path program 1 times [2024-10-24 01:51:22,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:51:22,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11177838] [2024-10-24 01:51:22,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:51:22,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:51:22,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:51:23,685 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:51:23,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:51:23,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11177838] [2024-10-24 01:51:23,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11177838] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 01:51:23,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707849007] [2024-10-24 01:51:23,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:51:23,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 01:51:23,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:51:23,688 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) [2024-10-24 01:51:23,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 01:51:23,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:51:23,892 INFO L255 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-24 01:51:23,900 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 01:51:25,104 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:51:25,104 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 01:51:26,946 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:51:26,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707849007] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 01:51:26,946 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 01:51:26,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2024-10-24 01:51:26,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561455617] [2024-10-24 01:51:26,947 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 01:51:26,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-10-24 01:51:26,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:51:26,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-10-24 01:51:26,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=876, Unknown=0, NotChecked=0, Total=992 [2024-10-24 01:51:26,950 INFO L87 Difference]: Start difference. First operand 37926 states and 52229 transitions. Second operand has 32 states, 32 states have (on average 12.71875) internal successors, (407), 31 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:51:36,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:51:36,114 INFO L93 Difference]: Finished difference Result 311957 states and 424054 transitions. [2024-10-24 01:51:36,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2024-10-24 01:51:36,114 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 12.71875) internal successors, (407), 31 states have internal predecessors, (407), 0 states have call successors, (0), 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 147 [2024-10-24 01:51:36,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:51:36,509 INFO L225 Difference]: With dead ends: 311957 [2024-10-24 01:51:36,510 INFO L226 Difference]: Without dead ends: 274139 [2024-10-24 01:51:36,552 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 428 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7420 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=3809, Invalid=20683, Unknown=0, NotChecked=0, Total=24492 [2024-10-24 01:51:36,553 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 4626 mSDsluCounter, 2115 mSDsCounter, 0 mSdLazyCounter, 2597 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4626 SdHoareTripleChecker+Valid, 2252 SdHoareTripleChecker+Invalid, 2688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 2597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 01:51:36,553 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4626 Valid, 2252 Invalid, 2688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 2597 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 01:51:36,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274139 states. [2024-10-24 01:51:39,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274139 to 185994. [2024-10-24 01:51:39,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185994 states, 185993 states have (on average 1.3667933739441807) internal successors, (254214), 185993 states have internal predecessors, (254214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:51:40,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185994 states to 185994 states and 254214 transitions. [2024-10-24 01:51:40,295 INFO L78 Accepts]: Start accepts. Automaton has 185994 states and 254214 transitions. Word has length 147 [2024-10-24 01:51:40,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:51:40,295 INFO L471 AbstractCegarLoop]: Abstraction has 185994 states and 254214 transitions. [2024-10-24 01:51:40,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 12.71875) internal successors, (407), 31 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:51:40,296 INFO L276 IsEmpty]: Start isEmpty. Operand 185994 states and 254214 transitions. [2024-10-24 01:51:40,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-24 01:51:40,315 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:51:40,315 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:51:40,329 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 01:51:40,516 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,SelfDestructingSolverStorable37 [2024-10-24 01:51:40,516 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:51:40,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:51:40,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1970884345, now seen corresponding path program 1 times [2024-10-24 01:51:40,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:51:40,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193390116] [2024-10-24 01:51:40,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:51:40,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:51:40,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:51:40,648 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:51:40,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:51:40,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193390116] [2024-10-24 01:51:40,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193390116] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:51:40,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:51:40,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:51:40,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940570372] [2024-10-24 01:51:40,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:51:40,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:51:40,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:51:40,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:51:40,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:51:40,650 INFO L87 Difference]: Start difference. First operand 185994 states and 254214 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:51:41,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:51:41,808 INFO L93 Difference]: Finished difference Result 325486 states and 444397 transitions. [2024-10-24 01:51:41,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:51:41,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 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 147 [2024-10-24 01:51:41,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:51:41,987 INFO L225 Difference]: With dead ends: 325486 [2024-10-24 01:51:41,987 INFO L226 Difference]: Without dead ends: 139632 [2024-10-24 01:51:42,432 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 [2024-10-24 01:51:42,433 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 83 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:51:42,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 359 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:51:42,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139632 states.