./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.5.4.ufo.BOUNDED-10.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.5.4.ufo.BOUNDED-10.pals.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 6cc7ef7e5cfcea54541e5555a1065ebb68875de99e452e2755d94724a415589e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:47:17,664 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:47:17,731 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:47:17,734 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:47:17,734 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:47:17,756 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:47:17,756 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:47:17,757 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:47:17,757 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:47:17,757 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:47:17,757 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:47:17,758 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:47:17,758 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:47:17,760 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:47:17,762 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:47:17,762 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:47:17,762 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:47:17,763 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:47:17,763 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:47:17,763 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:47:17,763 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:47:17,764 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:47:17,765 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:47:17,765 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:47:17,765 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:47:17,765 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:47:17,765 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:47:17,765 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:47:17,766 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:47:17,766 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:47:17,766 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:47:17,766 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:47:17,767 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:47:17,767 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:47:17,767 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:47:17,767 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:47:17,767 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:47:17,767 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:47:17,767 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:47:17,768 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:47:17,768 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:47:17,768 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:47:17,768 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6cc7ef7e5cfcea54541e5555a1065ebb68875de99e452e2755d94724a415589e [2024-11-18 14:47:17,989 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:47:18,023 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:47:18,026 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:47:18,028 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:47:18,028 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:47:18,030 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.5.4.ufo.BOUNDED-10.pals.c [2024-11-18 14:47:19,620 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:47:19,861 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:47:19,862 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.5.4.ufo.BOUNDED-10.pals.c [2024-11-18 14:47:19,880 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cd6eb162/171e0fa3dd7842cb927583a3ab9ff060/FLAGf335537ef [2024-11-18 14:47:20,182 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cd6eb162/171e0fa3dd7842cb927583a3ab9ff060 [2024-11-18 14:47:20,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:47:20,185 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:47:20,187 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:47:20,187 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:47:20,191 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:47:20,192 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:47:20" (1/1) ... [2024-11-18 14:47:20,192 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60dfb5bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:47:20, skipping insertion in model container [2024-11-18 14:47:20,193 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:47:20" (1/1) ... [2024-11-18 14:47:20,238 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:47:20,691 WARN L250 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/pals_opt-floodmax.5.4.ufo.BOUNDED-10.pals.c[65471,65484] [2024-11-18 14:47:20,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:47:20,705 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:47:20,796 WARN L250 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/pals_opt-floodmax.5.4.ufo.BOUNDED-10.pals.c[65471,65484] [2024-11-18 14:47:20,797 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:47:20,815 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:47:20,816 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:47:20 WrapperNode [2024-11-18 14:47:20,816 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:47:20,817 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:47:20,817 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:47:20,817 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:47:20,822 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:47:20" (1/1) ... [2024-11-18 14:47:20,844 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:47:20" (1/1) ... [2024-11-18 14:47:20,903 INFO L138 Inliner]: procedures = 24, calls = 16, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 2140 [2024-11-18 14:47:20,904 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:47:20,904 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:47:20,904 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:47:20,905 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:47:20,914 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:47:20" (1/1) ... [2024-11-18 14:47:20,914 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:47:20" (1/1) ... [2024-11-18 14:47:20,919 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:47:20" (1/1) ... [2024-11-18 14:47:20,943 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]. [2024-11-18 14:47:20,943 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:47:20" (1/1) ... [2024-11-18 14:47:20,943 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:47:20" (1/1) ... [2024-11-18 14:47:20,966 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:47:20" (1/1) ... [2024-11-18 14:47:20,982 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:47:20" (1/1) ... [2024-11-18 14:47:20,987 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:47:20" (1/1) ... [2024-11-18 14:47:20,994 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:47:20" (1/1) ... [2024-11-18 14:47:21,004 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:47:21,005 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:47:21,005 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:47:21,005 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:47:21,006 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:47:20" (1/1) ... [2024-11-18 14:47:21,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:47:21,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:47:21,037 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) [2024-11-18 14:47:21,040 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 [2024-11-18 14:47:21,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:47:21,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:47:21,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:47:21,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:47:21,218 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:47:21,221 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:47:23,060 INFO L? ?]: Removed 240 outVars from TransFormulas that were not future-live. [2024-11-18 14:47:23,060 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:47:23,087 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:47:23,088 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 14:47:23,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:47:23 BoogieIcfgContainer [2024-11-18 14:47:23,088 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:47:23,091 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:47:23,091 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:47:23,098 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:47:23,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:47:20" (1/3) ... [2024-11-18 14:47:23,100 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d05c1fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:47:23, skipping insertion in model container [2024-11-18 14:47:23,100 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:47:20" (2/3) ... [2024-11-18 14:47:23,100 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d05c1fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:47:23, skipping insertion in model container [2024-11-18 14:47:23,100 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:47:23" (3/3) ... [2024-11-18 14:47:23,101 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.5.4.ufo.BOUNDED-10.pals.c [2024-11-18 14:47:23,137 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:47:23,144 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:47:23,261 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:47:23,270 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;@77d0ac3b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:47:23,270 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:47:23,286 INFO L276 IsEmpty]: Start isEmpty. Operand has 696 states, 694 states have (on average 1.8703170028818443) internal successors, (1298), 695 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:23,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-18 14:47:23,325 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:47:23,327 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:47:23,328 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:47:23,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:47:23,338 INFO L85 PathProgramCache]: Analyzing trace with hash 46633421, now seen corresponding path program 1 times [2024-11-18 14:47:23,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:47:23,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96517411] [2024-11-18 14:47:23,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:47:23,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:47:23,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:47:23,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:47:23,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:47:23,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96517411] [2024-11-18 14:47:23,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96517411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:47:23,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:47:23,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 14:47:23,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348126539] [2024-11-18 14:47:23,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:47:23,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 14:47:23,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:47:23,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 14:47:23,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 14:47:23,967 INFO L87 Difference]: Start difference. First operand has 696 states, 694 states have (on average 1.8703170028818443) internal successors, (1298), 695 states have internal predecessors, (1298), 0 states have call successors, (0), 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 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:24,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:47:24,029 INFO L93 Difference]: Finished difference Result 842 states and 1560 transitions. [2024-11-18 14:47:24,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 14:47:24,037 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 0 states have call successors, (0), 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 153 [2024-11-18 14:47:24,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:47:24,057 INFO L225 Difference]: With dead ends: 842 [2024-11-18 14:47:24,057 INFO L226 Difference]: Without dead ends: 692 [2024-11-18 14:47:24,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 14:47:24,065 INFO L432 NwaCegarLoop]: 1295 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1295 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:47:24,066 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1295 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:47:24,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2024-11-18 14:47:24,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 692. [2024-11-18 14:47:24,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 691 states have (on average 1.8683068017366136) internal successors, (1291), 691 states have internal predecessors, (1291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:24,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1291 transitions. [2024-11-18 14:47:24,141 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1291 transitions. Word has length 153 [2024-11-18 14:47:24,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:47:24,142 INFO L471 AbstractCegarLoop]: Abstraction has 692 states and 1291 transitions. [2024-11-18 14:47:24,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:24,142 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1291 transitions. [2024-11-18 14:47:24,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-18 14:47:24,145 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:47:24,145 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:47:24,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 14:47:24,145 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:47:24,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:47:24,146 INFO L85 PathProgramCache]: Analyzing trace with hash -462839669, now seen corresponding path program 1 times [2024-11-18 14:47:24,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:47:24,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974092765] [2024-11-18 14:47:24,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:47:24,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:47:24,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:47:24,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:47:24,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:47:24,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974092765] [2024-11-18 14:47:24,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974092765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:47:24,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:47:24,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:47:24,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346008525] [2024-11-18 14:47:24,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:47:24,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:47:24,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:47:24,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:47:24,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:47:24,682 INFO L87 Difference]: Start difference. First operand 692 states and 1291 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:24,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:47:24,833 INFO L93 Difference]: Finished difference Result 837 states and 1550 transitions. [2024-11-18 14:47:24,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:47:24,833 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 0 states have call successors, (0), 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 153 [2024-11-18 14:47:24,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:47:24,839 INFO L225 Difference]: With dead ends: 837 [2024-11-18 14:47:24,839 INFO L226 Difference]: Without dead ends: 692 [2024-11-18 14:47:24,840 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:47:24,842 INFO L432 NwaCegarLoop]: 1289 mSDtfsCounter, 0 mSDsluCounter, 3797 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5086 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:47:24,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5086 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:47:24,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2024-11-18 14:47:24,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 692. [2024-11-18 14:47:24,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 691 states have (on average 1.7742402315484804) internal successors, (1226), 691 states have internal predecessors, (1226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:24,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1226 transitions. [2024-11-18 14:47:24,859 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1226 transitions. Word has length 153 [2024-11-18 14:47:24,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:47:24,860 INFO L471 AbstractCegarLoop]: Abstraction has 692 states and 1226 transitions. [2024-11-18 14:47:24,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:24,860 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1226 transitions. [2024-11-18 14:47:24,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-18 14:47:24,862 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:47:24,862 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:47:24,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 14:47:24,863 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:47:24,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:47:24,863 INFO L85 PathProgramCache]: Analyzing trace with hash 2032916201, now seen corresponding path program 1 times [2024-11-18 14:47:24,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:47:24,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003580176] [2024-11-18 14:47:24,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:47:24,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:47:24,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:47:25,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:47:25,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:47:25,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003580176] [2024-11-18 14:47:25,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003580176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:47:25,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:47:25,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:47:25,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328268729] [2024-11-18 14:47:25,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:47:25,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:47:25,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:47:25,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:47:25,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:47:25,177 INFO L87 Difference]: Start difference. First operand 692 states and 1226 transitions. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:25,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:47:25,231 INFO L93 Difference]: Finished difference Result 960 states and 1710 transitions. [2024-11-18 14:47:25,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:47:25,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 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 217 [2024-11-18 14:47:25,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:47:25,237 INFO L225 Difference]: With dead ends: 960 [2024-11-18 14:47:25,237 INFO L226 Difference]: Without dead ends: 819 [2024-11-18 14:47:25,239 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 [2024-11-18 14:47:25,240 INFO L432 NwaCegarLoop]: 1225 mSDtfsCounter, 221 mSDsluCounter, 1157 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 2382 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:47:25,243 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 2382 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:47:25,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2024-11-18 14:47:25,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 817. [2024-11-18 14:47:25,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 817 states, 816 states have (on average 1.775735294117647) internal successors, (1449), 816 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:25,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1449 transitions. [2024-11-18 14:47:25,259 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1449 transitions. Word has length 217 [2024-11-18 14:47:25,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:47:25,260 INFO L471 AbstractCegarLoop]: Abstraction has 817 states and 1449 transitions. [2024-11-18 14:47:25,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:25,263 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1449 transitions. [2024-11-18 14:47:25,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-11-18 14:47:25,266 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:47:25,266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:47:25,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 14:47:25,267 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:47:25,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:47:25,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1022770877, now seen corresponding path program 1 times [2024-11-18 14:47:25,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:47:25,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532132794] [2024-11-18 14:47:25,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:47:25,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:47:25,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:47:25,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:47:25,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:47:25,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532132794] [2024-11-18 14:47:25,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532132794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:47:25,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:47:25,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:47:25,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858081161] [2024-11-18 14:47:25,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:47:25,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:47:25,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:47:25,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:47:25,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:47:25,552 INFO L87 Difference]: Start difference. First operand 817 states and 1449 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:25,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:47:25,590 INFO L93 Difference]: Finished difference Result 1325 states and 2361 transitions. [2024-11-18 14:47:25,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:47:25,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 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 221 [2024-11-18 14:47:25,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:47:25,596 INFO L225 Difference]: With dead ends: 1325 [2024-11-18 14:47:25,596 INFO L226 Difference]: Without dead ends: 1059 [2024-11-18 14:47:25,598 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 [2024-11-18 14:47:25,599 INFO L432 NwaCegarLoop]: 1224 mSDtfsCounter, 221 mSDsluCounter, 1166 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 2390 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:47:25,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 2390 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:47:25,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2024-11-18 14:47:25,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 1057. [2024-11-18 14:47:25,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1057 states, 1056 states have (on average 1.7803030303030303) internal successors, (1880), 1056 states have internal predecessors, (1880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:25,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1880 transitions. [2024-11-18 14:47:25,624 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1880 transitions. Word has length 221 [2024-11-18 14:47:25,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:47:25,625 INFO L471 AbstractCegarLoop]: Abstraction has 1057 states and 1880 transitions. [2024-11-18 14:47:25,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:25,626 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1880 transitions. [2024-11-18 14:47:25,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-18 14:47:25,629 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:47:25,629 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:47:25,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 14:47:25,630 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:47:25,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:47:25,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1113466973, now seen corresponding path program 1 times [2024-11-18 14:47:25,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:47:25,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412593548] [2024-11-18 14:47:25,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:47:25,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:47:25,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:47:25,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:47:25,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:47:25,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412593548] [2024-11-18 14:47:25,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412593548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:47:25,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:47:25,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:47:25,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281220012] [2024-11-18 14:47:25,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:47:25,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:47:25,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:47:25,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:47:25,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:47:25,850 INFO L87 Difference]: Start difference. First operand 1057 states and 1880 transitions. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:25,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:47:25,890 INFO L93 Difference]: Finished difference Result 2021 states and 3610 transitions. [2024-11-18 14:47:25,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:47:25,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 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 225 [2024-11-18 14:47:25,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:47:25,895 INFO L225 Difference]: With dead ends: 2021 [2024-11-18 14:47:25,895 INFO L226 Difference]: Without dead ends: 1515 [2024-11-18 14:47:25,897 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 [2024-11-18 14:47:25,897 INFO L432 NwaCegarLoop]: 1224 mSDtfsCounter, 213 mSDsluCounter, 1167 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2391 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:47:25,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 2391 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:47:25,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1515 states. [2024-11-18 14:47:25,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1515 to 1513. [2024-11-18 14:47:25,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1512 states have (on average 1.783068783068783) internal successors, (2696), 1512 states have internal predecessors, (2696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:25,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2696 transitions. [2024-11-18 14:47:25,923 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2696 transitions. Word has length 225 [2024-11-18 14:47:25,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:47:25,924 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2696 transitions. [2024-11-18 14:47:25,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:25,924 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2696 transitions. [2024-11-18 14:47:25,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-18 14:47:25,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:47:25,927 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:47:25,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 14:47:25,927 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:47:25,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:47:25,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1539339209, now seen corresponding path program 1 times [2024-11-18 14:47:25,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:47:25,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861255638] [2024-11-18 14:47:25,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:47:25,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:47:25,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:47:26,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:47:26,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:47:26,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861255638] [2024-11-18 14:47:26,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861255638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:47:26,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:47:26,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:47:26,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682328437] [2024-11-18 14:47:26,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:47:26,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:47:26,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:47:26,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:47:26,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:47:26,181 INFO L87 Difference]: Start difference. First operand 1513 states and 2696 transitions. Second operand has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:26,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:47:26,228 INFO L93 Difference]: Finished difference Result 3341 states and 5970 transitions. [2024-11-18 14:47:26,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:47:26,228 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 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 229 [2024-11-18 14:47:26,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:47:26,237 INFO L225 Difference]: With dead ends: 3341 [2024-11-18 14:47:26,237 INFO L226 Difference]: Without dead ends: 2379 [2024-11-18 14:47:26,238 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 [2024-11-18 14:47:26,239 INFO L432 NwaCegarLoop]: 1224 mSDtfsCounter, 205 mSDsluCounter, 1168 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 2392 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:47:26,241 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 2392 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:47:26,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2379 states. [2024-11-18 14:47:26,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2379 to 2377. [2024-11-18 14:47:26,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2377 states, 2376 states have (on average 1.7828282828282829) internal successors, (4236), 2376 states have internal predecessors, (4236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:26,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2377 states to 2377 states and 4236 transitions. [2024-11-18 14:47:26,277 INFO L78 Accepts]: Start accepts. Automaton has 2377 states and 4236 transitions. Word has length 229 [2024-11-18 14:47:26,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:47:26,277 INFO L471 AbstractCegarLoop]: Abstraction has 2377 states and 4236 transitions. [2024-11-18 14:47:26,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:26,278 INFO L276 IsEmpty]: Start isEmpty. Operand 2377 states and 4236 transitions. [2024-11-18 14:47:26,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-11-18 14:47:26,281 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:47:26,281 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:47:26,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 14:47:26,281 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:47:26,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:47:26,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1794403537, now seen corresponding path program 1 times [2024-11-18 14:47:26,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:47:26,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635903087] [2024-11-18 14:47:26,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:47:26,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:47:26,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:47:26,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:47:26,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:47:26,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635903087] [2024-11-18 14:47:26,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635903087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:47:26,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:47:26,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:47:26,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695658738] [2024-11-18 14:47:26,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:47:26,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:47:26,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:47:26,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:47:26,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:47:26,476 INFO L87 Difference]: Start difference. First operand 2377 states and 4236 transitions. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:26,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:47:26,521 INFO L93 Difference]: Finished difference Result 5837 states and 10414 transitions. [2024-11-18 14:47:26,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:47:26,521 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 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 233 [2024-11-18 14:47:26,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:47:26,531 INFO L225 Difference]: With dead ends: 5837 [2024-11-18 14:47:26,531 INFO L226 Difference]: Without dead ends: 4011 [2024-11-18 14:47:26,533 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 [2024-11-18 14:47:26,534 INFO L432 NwaCegarLoop]: 1224 mSDtfsCounter, 197 mSDsluCounter, 1169 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 2393 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:47:26,534 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 2393 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:47:26,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4011 states. [2024-11-18 14:47:26,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4011 to 4009. [2024-11-18 14:47:26,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4009 states, 4008 states have (on average 1.7794411177644711) internal successors, (7132), 4008 states have internal predecessors, (7132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:26,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4009 states to 4009 states and 7132 transitions. [2024-11-18 14:47:26,592 INFO L78 Accepts]: Start accepts. Automaton has 4009 states and 7132 transitions. Word has length 233 [2024-11-18 14:47:26,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:47:26,592 INFO L471 AbstractCegarLoop]: Abstraction has 4009 states and 7132 transitions. [2024-11-18 14:47:26,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:26,593 INFO L276 IsEmpty]: Start isEmpty. Operand 4009 states and 7132 transitions. [2024-11-18 14:47:26,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-11-18 14:47:26,596 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:47:26,596 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:47:26,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 14:47:26,596 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:47:26,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:47:26,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1913435605, now seen corresponding path program 1 times [2024-11-18 14:47:26,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:47:26,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561563403] [2024-11-18 14:47:26,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:47:26,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:47:26,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:47:26,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:47:26,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:47:26,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561563403] [2024-11-18 14:47:26,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561563403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:47:26,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:47:26,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 14:47:26,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743765780] [2024-11-18 14:47:26,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:47:26,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 14:47:26,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:47:26,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 14:47:26,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:47:26,909 INFO L87 Difference]: Start difference. First operand 4009 states and 7132 transitions. Second operand has 7 states, 7 states have (on average 33.857142857142854) internal successors, (237), 7 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:27,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:47:27,505 INFO L93 Difference]: Finished difference Result 23805 states and 42646 transitions. [2024-11-18 14:47:27,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-18 14:47:27,506 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 33.857142857142854) internal successors, (237), 7 states have internal predecessors, (237), 0 states have call successors, (0), 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 237 [2024-11-18 14:47:27,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:47:27,574 INFO L225 Difference]: With dead ends: 23805 [2024-11-18 14:47:27,574 INFO L226 Difference]: Without dead ends: 20347 [2024-11-18 14:47:27,586 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-11-18 14:47:27,587 INFO L432 NwaCegarLoop]: 1221 mSDtfsCounter, 2628 mSDsluCounter, 10211 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2628 SdHoareTripleChecker+Valid, 11432 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 14:47:27,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2628 Valid, 11432 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 14:47:27,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20347 states. [2024-11-18 14:47:27,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20347 to 7328. [2024-11-18 14:47:27,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7328 states, 7327 states have (on average 1.7794458850825714) internal successors, (13038), 7327 states have internal predecessors, (13038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:27,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7328 states to 7328 states and 13038 transitions. [2024-11-18 14:47:27,940 INFO L78 Accepts]: Start accepts. Automaton has 7328 states and 13038 transitions. Word has length 237 [2024-11-18 14:47:27,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:47:27,941 INFO L471 AbstractCegarLoop]: Abstraction has 7328 states and 13038 transitions. [2024-11-18 14:47:27,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 33.857142857142854) internal successors, (237), 7 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:27,942 INFO L276 IsEmpty]: Start isEmpty. Operand 7328 states and 13038 transitions. [2024-11-18 14:47:27,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2024-11-18 14:47:27,948 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:47:27,948 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:47:27,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 14:47:27,948 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:47:27,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:47:27,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1453341025, now seen corresponding path program 1 times [2024-11-18 14:47:27,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:47:27,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146770276] [2024-11-18 14:47:27,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:47:27,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:47:28,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:47:28,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:47:28,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:47:28,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146770276] [2024-11-18 14:47:28,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146770276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:47:28,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:47:28,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:47:28,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998765639] [2024-11-18 14:47:28,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:47:28,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:47:28,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:47:28,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:47:28,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:47:28,315 INFO L87 Difference]: Start difference. First operand 7328 states and 13038 transitions. Second operand has 4 states, 4 states have (on average 59.5) internal successors, (238), 4 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:28,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:47:28,701 INFO L93 Difference]: Finished difference Result 21287 states and 38031 transitions. [2024-11-18 14:47:28,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:47:28,702 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 59.5) internal successors, (238), 4 states have internal predecessors, (238), 0 states have call successors, (0), 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 238 [2024-11-18 14:47:28,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:47:28,759 INFO L225 Difference]: With dead ends: 21287 [2024-11-18 14:47:28,759 INFO L226 Difference]: Without dead ends: 14510 [2024-11-18 14:47:28,774 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:47:28,775 INFO L432 NwaCegarLoop]: 1224 mSDtfsCounter, 736 mSDsluCounter, 2622 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 3846 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:47:28,775 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 3846 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:47:28,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14510 states. [2024-11-18 14:47:29,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14510 to 10886. [2024-11-18 14:47:29,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10886 states, 10885 states have (on average 1.780064308681672) internal successors, (19376), 10885 states have internal predecessors, (19376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:29,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10886 states to 10886 states and 19376 transitions. [2024-11-18 14:47:29,113 INFO L78 Accepts]: Start accepts. Automaton has 10886 states and 19376 transitions. Word has length 238 [2024-11-18 14:47:29,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:47:29,113 INFO L471 AbstractCegarLoop]: Abstraction has 10886 states and 19376 transitions. [2024-11-18 14:47:29,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.5) internal successors, (238), 4 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:29,114 INFO L276 IsEmpty]: Start isEmpty. Operand 10886 states and 19376 transitions. [2024-11-18 14:47:29,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-11-18 14:47:29,123 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:47:29,123 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:47:29,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 14:47:29,123 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:47:29,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:47:29,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1866481297, now seen corresponding path program 1 times [2024-11-18 14:47:29,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:47:29,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961589026] [2024-11-18 14:47:29,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:47:29,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:47:29,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:47:29,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:47:29,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:47:29,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961589026] [2024-11-18 14:47:29,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961589026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:47:29,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:47:29,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:47:29,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358846008] [2024-11-18 14:47:29,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:47:29,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:47:29,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:47:29,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:47:29,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:47:29,379 INFO L87 Difference]: Start difference. First operand 10886 states and 19376 transitions. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:29,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:47:29,553 INFO L93 Difference]: Finished difference Result 24013 states and 42846 transitions. [2024-11-18 14:47:29,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:47:29,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 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 239 [2024-11-18 14:47:29,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:47:29,592 INFO L225 Difference]: With dead ends: 24013 [2024-11-18 14:47:29,592 INFO L226 Difference]: Without dead ends: 16773 [2024-11-18 14:47:29,608 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 [2024-11-18 14:47:29,609 INFO L432 NwaCegarLoop]: 1427 mSDtfsCounter, 230 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 2615 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:47:29,610 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 2615 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:47:29,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16773 states. [2024-11-18 14:47:29,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16773 to 16771. [2024-11-18 14:47:29,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16771 states, 16770 states have (on average 1.7762075134168158) internal successors, (29787), 16770 states have internal predecessors, (29787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:30,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16771 states to 16771 states and 29787 transitions. [2024-11-18 14:47:30,206 INFO L78 Accepts]: Start accepts. Automaton has 16771 states and 29787 transitions. Word has length 239 [2024-11-18 14:47:30,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:47:30,206 INFO L471 AbstractCegarLoop]: Abstraction has 16771 states and 29787 transitions. [2024-11-18 14:47:30,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:30,206 INFO L276 IsEmpty]: Start isEmpty. Operand 16771 states and 29787 transitions. [2024-11-18 14:47:30,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-11-18 14:47:30,215 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:47:30,215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:47:30,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 14:47:30,216 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:47:30,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:47:30,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1951768689, now seen corresponding path program 1 times [2024-11-18 14:47:30,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:47:30,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469983688] [2024-11-18 14:47:30,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:47:30,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:47:30,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:47:30,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:47:30,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:47:30,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469983688] [2024-11-18 14:47:30,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469983688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:47:30,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:47:30,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:47:30,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366770107] [2024-11-18 14:47:30,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:47:30,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:47:30,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:47:30,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:47:30,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:47:30,363 INFO L87 Difference]: Start difference. First operand 16771 states and 29787 transitions. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:30,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:47:30,658 INFO L93 Difference]: Finished difference Result 32435 states and 57586 transitions. [2024-11-18 14:47:30,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:47:30,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 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 239 [2024-11-18 14:47:30,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:47:30,699 INFO L225 Difference]: With dead ends: 32435 [2024-11-18 14:47:30,700 INFO L226 Difference]: Without dead ends: 23729 [2024-11-18 14:47:30,709 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 [2024-11-18 14:47:30,709 INFO L432 NwaCegarLoop]: 1416 mSDtfsCounter, 222 mSDsluCounter, 1189 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 2605 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:47:30,710 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 2605 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:47:30,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23729 states. [2024-11-18 14:47:31,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23729 to 23727. [2024-11-18 14:47:31,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23727 states, 23726 states have (on average 1.7691561999494225) internal successors, (41975), 23726 states have internal predecessors, (41975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:31,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23727 states to 23727 states and 41975 transitions. [2024-11-18 14:47:31,217 INFO L78 Accepts]: Start accepts. Automaton has 23727 states and 41975 transitions. Word has length 239 [2024-11-18 14:47:31,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:47:31,217 INFO L471 AbstractCegarLoop]: Abstraction has 23727 states and 41975 transitions. [2024-11-18 14:47:31,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:31,218 INFO L276 IsEmpty]: Start isEmpty. Operand 23727 states and 41975 transitions. [2024-11-18 14:47:31,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-11-18 14:47:31,222 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:47:31,222 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:47:31,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 14:47:31,222 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:47:31,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:47:31,223 INFO L85 PathProgramCache]: Analyzing trace with hash 844816977, now seen corresponding path program 1 times [2024-11-18 14:47:31,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:47:31,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025002456] [2024-11-18 14:47:31,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:47:31,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:47:31,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:47:31,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:47:31,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:47:31,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025002456] [2024-11-18 14:47:31,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025002456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:47:31,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:47:31,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:47:31,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568785457] [2024-11-18 14:47:31,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:47:31,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:47:31,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:47:31,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:47:31,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:47:31,529 INFO L87 Difference]: Start difference. First operand 23727 states and 41975 transitions. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:31,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:47:31,974 INFO L93 Difference]: Finished difference Result 45935 states and 81222 transitions. [2024-11-18 14:47:31,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:47:31,975 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 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 239 [2024-11-18 14:47:31,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:47:32,064 INFO L225 Difference]: With dead ends: 45935 [2024-11-18 14:47:32,064 INFO L226 Difference]: Without dead ends: 33517 [2024-11-18 14:47:32,090 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 [2024-11-18 14:47:32,091 INFO L432 NwaCegarLoop]: 1396 mSDtfsCounter, 214 mSDsluCounter, 1190 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 2586 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:47:32,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 2586 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:47:32,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33517 states. [2024-11-18 14:47:32,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33517 to 33515. [2024-11-18 14:47:32,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33515 states, 33514 states have (on average 1.761263949394283) internal successors, (59027), 33514 states have internal predecessors, (59027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:33,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33515 states to 33515 states and 59027 transitions. [2024-11-18 14:47:33,053 INFO L78 Accepts]: Start accepts. Automaton has 33515 states and 59027 transitions. Word has length 239 [2024-11-18 14:47:33,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:47:33,054 INFO L471 AbstractCegarLoop]: Abstraction has 33515 states and 59027 transitions. [2024-11-18 14:47:33,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:33,054 INFO L276 IsEmpty]: Start isEmpty. Operand 33515 states and 59027 transitions. [2024-11-18 14:47:33,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-11-18 14:47:33,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:47:33,058 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:47:33,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 14:47:33,059 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:47:33,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:47:33,059 INFO L85 PathProgramCache]: Analyzing trace with hash 120587313, now seen corresponding path program 1 times [2024-11-18 14:47:33,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:47:33,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167191019] [2024-11-18 14:47:33,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:47:33,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:47:33,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:47:33,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:47:33,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:47:33,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167191019] [2024-11-18 14:47:33,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167191019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:47:33,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:47:33,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:47:33,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327339461] [2024-11-18 14:47:33,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:47:33,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:47:33,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:47:33,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:47:33,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:47:33,225 INFO L87 Difference]: Start difference. First operand 33515 states and 59027 transitions. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:33,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:47:33,712 INFO L93 Difference]: Finished difference Result 64899 states and 114226 transitions. [2024-11-18 14:47:33,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:47:33,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 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 239 [2024-11-18 14:47:33,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:47:33,815 INFO L225 Difference]: With dead ends: 64899 [2024-11-18 14:47:33,815 INFO L226 Difference]: Without dead ends: 47233 [2024-11-18 14:47:33,839 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 [2024-11-18 14:47:33,840 INFO L432 NwaCegarLoop]: 1376 mSDtfsCounter, 206 mSDsluCounter, 1191 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 2567 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:47:33,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 2567 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:47:33,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47233 states. [2024-11-18 14:47:34,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47233 to 47231. [2024-11-18 14:47:34,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47231 states, 47230 states have (on average 1.7523819606182511) internal successors, (82765), 47230 states have internal predecessors, (82765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:35,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47231 states to 47231 states and 82765 transitions. [2024-11-18 14:47:35,049 INFO L78 Accepts]: Start accepts. Automaton has 47231 states and 82765 transitions. Word has length 239 [2024-11-18 14:47:35,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:47:35,049 INFO L471 AbstractCegarLoop]: Abstraction has 47231 states and 82765 transitions. [2024-11-18 14:47:35,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:35,049 INFO L276 IsEmpty]: Start isEmpty. Operand 47231 states and 82765 transitions. [2024-11-18 14:47:35,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-11-18 14:47:35,055 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:47:35,055 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:47:35,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 14:47:35,056 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:47:35,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:47:35,056 INFO L85 PathProgramCache]: Analyzing trace with hash 817169937, now seen corresponding path program 1 times [2024-11-18 14:47:35,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:47:35,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105038417] [2024-11-18 14:47:35,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:47:35,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:47:35,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:47:35,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:47:35,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:47:35,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105038417] [2024-11-18 14:47:35,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105038417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:47:35,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:47:35,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:47:35,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230243097] [2024-11-18 14:47:35,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:47:35,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:47:35,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:47:35,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:47:35,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:47:35,420 INFO L87 Difference]: Start difference. First operand 47231 states and 82765 transitions. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:36,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:47:36,016 INFO L93 Difference]: Finished difference Result 91419 states and 160062 transitions. [2024-11-18 14:47:36,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:47:36,017 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 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 239 [2024-11-18 14:47:36,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:47:36,142 INFO L225 Difference]: With dead ends: 91419 [2024-11-18 14:47:36,143 INFO L226 Difference]: Without dead ends: 66361 [2024-11-18 14:47:36,172 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 [2024-11-18 14:47:36,172 INFO L432 NwaCegarLoop]: 1356 mSDtfsCounter, 198 mSDsluCounter, 1192 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 2548 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:47:36,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 2548 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:47:36,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66361 states. [2024-11-18 14:47:37,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66361 to 66359. [2024-11-18 14:47:37,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66359 states, 66358 states have (on average 1.7423219506314236) internal successors, (115617), 66358 states have internal predecessors, (115617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:37,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66359 states to 66359 states and 115617 transitions. [2024-11-18 14:47:37,803 INFO L78 Accepts]: Start accepts. Automaton has 66359 states and 115617 transitions. Word has length 239 [2024-11-18 14:47:37,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:47:37,804 INFO L471 AbstractCegarLoop]: Abstraction has 66359 states and 115617 transitions. [2024-11-18 14:47:37,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:37,805 INFO L276 IsEmpty]: Start isEmpty. Operand 66359 states and 115617 transitions. [2024-11-18 14:47:37,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-11-18 14:47:37,809 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:47:37,809 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:47:37,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 14:47:37,810 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:47:37,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:47:37,810 INFO L85 PathProgramCache]: Analyzing trace with hash 93693410, now seen corresponding path program 1 times [2024-11-18 14:47:37,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:47:37,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242212009] [2024-11-18 14:47:37,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:47:37,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:47:37,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:47:38,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:47:38,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:47:38,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242212009] [2024-11-18 14:47:38,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242212009] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:47:38,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:47:38,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:47:38,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133121143] [2024-11-18 14:47:38,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:47:38,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:47:38,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:47:38,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:47:38,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:47:38,624 INFO L87 Difference]: Start difference. First operand 66359 states and 115617 transitions. Second operand has 4 states, 4 states have (on average 59.75) internal successors, (239), 4 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:39,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:47:39,942 INFO L93 Difference]: Finished difference Result 219525 states and 382555 transitions. [2024-11-18 14:47:39,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:47:39,943 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 59.75) internal successors, (239), 4 states have internal predecessors, (239), 0 states have call successors, (0), 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 239 [2024-11-18 14:47:39,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:47:40,163 INFO L225 Difference]: With dead ends: 219525 [2024-11-18 14:47:40,163 INFO L226 Difference]: Without dead ends: 153767 [2024-11-18 14:47:40,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:47:40,216 INFO L432 NwaCegarLoop]: 1219 mSDtfsCounter, 734 mSDsluCounter, 2624 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 3843 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:47:40,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [734 Valid, 3843 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:47:40,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153767 states. [2024-11-18 14:47:42,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153767 to 109794. [2024-11-18 14:47:42,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109794 states, 109793 states have (on average 1.734791835545071) internal successors, (190468), 109793 states have internal predecessors, (190468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:43,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109794 states to 109794 states and 190468 transitions. [2024-11-18 14:47:43,059 INFO L78 Accepts]: Start accepts. Automaton has 109794 states and 190468 transitions. Word has length 239 [2024-11-18 14:47:43,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:47:43,060 INFO L471 AbstractCegarLoop]: Abstraction has 109794 states and 190468 transitions. [2024-11-18 14:47:43,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.75) internal successors, (239), 4 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:43,061 INFO L276 IsEmpty]: Start isEmpty. Operand 109794 states and 190468 transitions. [2024-11-18 14:47:43,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-11-18 14:47:43,063 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:47:43,063 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:47:43,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 14:47:43,064 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:47:43,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:47:43,065 INFO L85 PathProgramCache]: Analyzing trace with hash 976124982, now seen corresponding path program 1 times [2024-11-18 14:47:43,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:47:43,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155006799] [2024-11-18 14:47:43,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:47:43,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:47:43,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:47:43,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:47:43,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:47:43,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155006799] [2024-11-18 14:47:43,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155006799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:47:43,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:47:43,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:47:43,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810205371] [2024-11-18 14:47:43,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:47:43,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:47:43,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:47:43,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:47:43,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:47:43,897 INFO L87 Difference]: Start difference. First operand 109794 states and 190468 transitions. Second operand has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:46,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:47:46,123 INFO L93 Difference]: Finished difference Result 363279 states and 630349 transitions. [2024-11-18 14:47:46,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:47:46,123 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 0 states have call successors, (0), 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 240 [2024-11-18 14:47:46,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:47:46,650 INFO L225 Difference]: With dead ends: 363279 [2024-11-18 14:47:46,650 INFO L226 Difference]: Without dead ends: 254086 [2024-11-18 14:47:46,742 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:47:46,743 INFO L432 NwaCegarLoop]: 1215 mSDtfsCounter, 732 mSDsluCounter, 2626 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 3841 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:47:46,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 3841 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:47:46,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254086 states. [2024-11-18 14:47:50,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254086 to 181497. [2024-11-18 14:47:50,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181497 states, 181496 states have (on average 1.7272832459117555) internal successors, (313495), 181496 states have internal predecessors, (313495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:51,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181497 states to 181497 states and 313495 transitions. [2024-11-18 14:47:51,183 INFO L78 Accepts]: Start accepts. Automaton has 181497 states and 313495 transitions. Word has length 240 [2024-11-18 14:47:51,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:47:51,184 INFO L471 AbstractCegarLoop]: Abstraction has 181497 states and 313495 transitions. [2024-11-18 14:47:51,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:51,184 INFO L276 IsEmpty]: Start isEmpty. Operand 181497 states and 313495 transitions. [2024-11-18 14:47:51,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2024-11-18 14:47:51,186 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:47:51,186 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:47:51,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 14:47:51,186 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:47:51,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:47:51,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1564263015, now seen corresponding path program 1 times [2024-11-18 14:47:51,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:47:51,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906332518] [2024-11-18 14:47:51,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:47:51,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:47:51,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:47:51,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:47:51,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:47:51,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906332518] [2024-11-18 14:47:51,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906332518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:47:51,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:47:51,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:47:51,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458706891] [2024-11-18 14:47:51,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:47:51,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:47:51,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:47:51,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:47:51,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:47:51,356 INFO L87 Difference]: Start difference. First operand 181497 states and 313495 transitions. Second operand has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:47:55,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:47:55,548 INFO L93 Difference]: Finished difference Result 598865 states and 1034687 transitions. [2024-11-18 14:47:55,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:47:55,548 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 0 states have call successors, (0), 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 241 [2024-11-18 14:47:55,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:47:56,904 INFO L225 Difference]: With dead ends: 598865 [2024-11-18 14:47:56,904 INFO L226 Difference]: Without dead ends: 417969 [2024-11-18 14:47:57,042 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:47:57,042 INFO L432 NwaCegarLoop]: 1215 mSDtfsCounter, 730 mSDsluCounter, 2628 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 3843 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:47:57,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 3843 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:47:57,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417969 states. [2024-11-18 14:48:02,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417969 to 299008. [2024-11-18 14:48:02,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299008 states, 299007 states have (on average 1.719872778898153) internal successors, (514254), 299007 states have internal predecessors, (514254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:48:03,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299008 states to 299008 states and 514254 transitions. [2024-11-18 14:48:03,877 INFO L78 Accepts]: Start accepts. Automaton has 299008 states and 514254 transitions. Word has length 241 [2024-11-18 14:48:03,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:48:03,878 INFO L471 AbstractCegarLoop]: Abstraction has 299008 states and 514254 transitions. [2024-11-18 14:48:03,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:48:03,878 INFO L276 IsEmpty]: Start isEmpty. Operand 299008 states and 514254 transitions. [2024-11-18 14:48:03,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2024-11-18 14:48:03,880 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:48:03,880 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:48:03,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 14:48:03,880 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:48:03,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:48:03,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1457092045, now seen corresponding path program 1 times [2024-11-18 14:48:03,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:48:03,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43725770] [2024-11-18 14:48:03,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:48:03,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:48:03,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:48:04,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:48:04,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:48:04,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43725770] [2024-11-18 14:48:04,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43725770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:48:04,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:48:04,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:48:04,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188520781] [2024-11-18 14:48:04,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:48:04,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:48:04,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:48:04,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:48:04,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:48:04,066 INFO L87 Difference]: Start difference. First operand 299008 states and 514254 transitions. Second operand has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:48:10,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:48:10,729 INFO L93 Difference]: Finished difference Result 979715 states and 1685609 transitions. [2024-11-18 14:48:10,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:48:10,730 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 0 states have call successors, (0), 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 242 [2024-11-18 14:48:10,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:48:12,294 INFO L225 Difference]: With dead ends: 979715 [2024-11-18 14:48:12,295 INFO L226 Difference]: Without dead ends: 681308 [2024-11-18 14:48:12,545 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:48:12,546 INFO L432 NwaCegarLoop]: 1215 mSDtfsCounter, 728 mSDsluCounter, 2630 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 3845 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:48:12,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 3845 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:48:13,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681308 states.