./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.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-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a452dfa966a0e4feaa14ada0c4d0013b48db706f82d3f0485b7e78bd9c5210df --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:56:30,912 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:56:30,965 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:56:30,971 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:56:30,972 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:56:30,994 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:56:30,995 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:56:30,996 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:56:30,996 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:56:30,998 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:56:30,998 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:56:30,998 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:56:30,999 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:56:30,999 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:56:31,000 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:56:31,000 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:56:31,001 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:56:31,001 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:56:31,001 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:56:31,001 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:56:31,001 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:56:31,004 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:56:31,005 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:56:31,005 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:56:31,005 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:56:31,005 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:56:31,005 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:56:31,006 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:56:31,006 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:56:31,006 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:56:31,006 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:56:31,007 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:56:31,007 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:56:31,007 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:56:31,008 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:56:31,008 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:56:31,008 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:56:31,008 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:56:31,009 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:56:31,009 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:56:31,009 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:56:31,010 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:56:31,010 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a452dfa966a0e4feaa14ada0c4d0013b48db706f82d3f0485b7e78bd9c5210df [2024-11-18 14:56:31,205 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:56:31,222 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:56:31,224 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:56:31,226 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:56:31,227 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:56:31,228 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-18 14:56:32,752 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:56:32,973 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:56:32,973 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-18 14:56:32,991 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe83fac16/0ceb78bce91f421bb321b49f97c762de/FLAG634cb97bf [2024-11-18 14:56:33,004 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe83fac16/0ceb78bce91f421bb321b49f97c762de [2024-11-18 14:56:33,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:56:33,008 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:56:33,009 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:56:33,009 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:56:33,015 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:56:33,015 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:56:33" (1/1) ... [2024-11-18 14:56:33,016 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34e5769a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:56:33, skipping insertion in model container [2024-11-18 14:56:33,016 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:56:33" (1/1) ... [2024-11-18 14:56:33,055 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:56:33,388 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-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[12984,12997] [2024-11-18 14:56:33,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:56:33,480 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:56:33,553 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-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[12984,12997] [2024-11-18 14:56:33,589 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:56:33,607 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:56:33,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:56:33 WrapperNode [2024-11-18 14:56:33,608 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:56:33,609 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:56:33,609 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:56:33,609 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:56:33,614 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:56:33" (1/1) ... [2024-11-18 14:56:33,629 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:56:33" (1/1) ... [2024-11-18 14:56:33,688 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1367 [2024-11-18 14:56:33,688 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:56:33,689 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:56:33,689 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:56:33,689 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:56:33,697 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:56:33" (1/1) ... [2024-11-18 14:56:33,698 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:56:33" (1/1) ... [2024-11-18 14:56:33,707 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:56:33" (1/1) ... [2024-11-18 14:56:33,737 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 14:56:33,741 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:56:33" (1/1) ... [2024-11-18 14:56:33,741 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:56:33" (1/1) ... [2024-11-18 14:56:33,761 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:56:33" (1/1) ... [2024-11-18 14:56:33,776 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:56:33" (1/1) ... [2024-11-18 14:56:33,784 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:56:33" (1/1) ... [2024-11-18 14:56:33,797 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:56:33" (1/1) ... [2024-11-18 14:56:33,806 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:56:33,809 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:56:33,809 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:56:33,809 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:56:33,810 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:56:33" (1/1) ... [2024-11-18 14:56:33,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:56:33,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:56:33,838 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 14:56:33,840 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 14:56:33,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:56:33,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:56:33,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:56:33,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:56:34,008 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:56:34,010 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:56:34,998 INFO L? ?]: Removed 119 outVars from TransFormulas that were not future-live. [2024-11-18 14:56:34,999 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:56:35,025 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:56:35,027 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-18 14:56:35,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:56:35 BoogieIcfgContainer [2024-11-18 14:56:35,028 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:56:35,030 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:56:35,030 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:56:35,032 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:56:35,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:56:33" (1/3) ... [2024-11-18 14:56:35,034 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a21578f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:56:35, skipping insertion in model container [2024-11-18 14:56:35,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:56:33" (2/3) ... [2024-11-18 14:56:35,034 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a21578f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:56:35, skipping insertion in model container [2024-11-18 14:56:35,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:56:35" (3/3) ... [2024-11-18 14:56:35,036 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-18 14:56:35,050 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:56:35,051 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:56:35,114 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:56:35,119 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;@a0d93c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:56:35,119 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:56:35,128 INFO L276 IsEmpty]: Start isEmpty. Operand has 326 states, 324 states have (on average 1.7962962962962963) internal successors, (582), 325 states have internal predecessors, (582), 0 states have call successors, (0), 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 14:56:35,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-18 14:56:35,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:56:35,144 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] [2024-11-18 14:56:35,145 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:56:35,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:56:35,149 INFO L85 PathProgramCache]: Analyzing trace with hash 430105228, now seen corresponding path program 1 times [2024-11-18 14:56:35,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:56:35,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699942860] [2024-11-18 14:56:35,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:56:35,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:56:35,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:56:35,747 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 14:56:35,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:56:35,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699942860] [2024-11-18 14:56:35,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699942860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:56:35,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:56:35,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:56:35,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388069289] [2024-11-18 14:56:35,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:56:35,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:56:35,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:56:35,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:56:35,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:56:35,781 INFO L87 Difference]: Start difference. First operand has 326 states, 324 states have (on average 1.7962962962962963) internal successors, (582), 325 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 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 14:56:35,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:56:35,924 INFO L93 Difference]: Finished difference Result 589 states and 1021 transitions. [2024-11-18 14:56:35,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:56:35,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2024-11-18 14:56:35,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:56:35,940 INFO L225 Difference]: With dead ends: 589 [2024-11-18 14:56:35,943 INFO L226 Difference]: Without dead ends: 446 [2024-11-18 14:56:35,946 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 14:56:35,952 INFO L432 NwaCegarLoop]: 576 mSDtfsCounter, 232 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 1074 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:56:35,956 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 1074 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:56:35,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2024-11-18 14:56:36,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 443. [2024-11-18 14:56:36,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 442 states have (on average 1.660633484162896) internal successors, (734), 442 states have internal predecessors, (734), 0 states have call successors, (0), 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 14:56:36,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 734 transitions. [2024-11-18 14:56:36,050 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 734 transitions. Word has length 110 [2024-11-18 14:56:36,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:56:36,051 INFO L471 AbstractCegarLoop]: Abstraction has 443 states and 734 transitions. [2024-11-18 14:56:36,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 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 14:56:36,051 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 734 transitions. [2024-11-18 14:56:36,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-18 14:56:36,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:56:36,054 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] [2024-11-18 14:56:36,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 14:56:36,061 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:56:36,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:56:36,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1228540371, now seen corresponding path program 1 times [2024-11-18 14:56:36,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:56:36,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542546457] [2024-11-18 14:56:36,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:56:36,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:56:36,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:56:36,344 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 14:56:36,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:56:36,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542546457] [2024-11-18 14:56:36,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542546457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:56:36,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:56:36,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:56:36,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142831212] [2024-11-18 14:56:36,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:56:36,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:56:36,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:56:36,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:56:36,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:56:36,349 INFO L87 Difference]: Start difference. First operand 443 states and 734 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 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 14:56:36,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:56:36,390 INFO L93 Difference]: Finished difference Result 933 states and 1550 transitions. [2024-11-18 14:56:36,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:56:36,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2024-11-18 14:56:36,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:56:36,396 INFO L225 Difference]: With dead ends: 933 [2024-11-18 14:56:36,397 INFO L226 Difference]: Without dead ends: 679 [2024-11-18 14:56:36,398 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 14:56:36,399 INFO L432 NwaCegarLoop]: 533 mSDtfsCounter, 200 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:56:36,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 1028 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:56:36,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2024-11-18 14:56:36,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 675. [2024-11-18 14:56:36,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 674 states have (on average 1.6587537091988132) internal successors, (1118), 674 states have internal predecessors, (1118), 0 states have call successors, (0), 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 14:56:36,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 1118 transitions. [2024-11-18 14:56:36,438 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 1118 transitions. Word has length 113 [2024-11-18 14:56:36,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:56:36,439 INFO L471 AbstractCegarLoop]: Abstraction has 675 states and 1118 transitions. [2024-11-18 14:56:36,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 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 14:56:36,440 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 1118 transitions. [2024-11-18 14:56:36,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-18 14:56:36,444 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:56:36,444 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] [2024-11-18 14:56:36,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 14:56:36,445 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:56:36,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:56:36,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1403707664, now seen corresponding path program 1 times [2024-11-18 14:56:36,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:56:36,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909601770] [2024-11-18 14:56:36,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:56:36,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:56:36,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:56:36,658 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 14:56:36,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:56:36,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909601770] [2024-11-18 14:56:36,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909601770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:56:36,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:56:36,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:56:36,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682693170] [2024-11-18 14:56:36,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:56:36,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:56:36,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:56:36,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:56:36,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:56:36,660 INFO L87 Difference]: Start difference. First operand 675 states and 1118 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:56:36,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:56:36,747 INFO L93 Difference]: Finished difference Result 1611 states and 2668 transitions. [2024-11-18 14:56:36,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:56:36,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2024-11-18 14:56:36,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:56:36,751 INFO L225 Difference]: With dead ends: 1611 [2024-11-18 14:56:36,751 INFO L226 Difference]: Without dead ends: 1125 [2024-11-18 14:56:36,753 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 14:56:36,754 INFO L432 NwaCegarLoop]: 533 mSDtfsCounter, 194 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 1029 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:56:36,754 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 1029 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:56:36,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2024-11-18 14:56:36,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 1119. [2024-11-18 14:56:36,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1119 states, 1118 states have (on average 1.6511627906976745) internal successors, (1846), 1118 states have internal predecessors, (1846), 0 states have call successors, (0), 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 14:56:36,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1119 states to 1119 states and 1846 transitions. [2024-11-18 14:56:36,773 INFO L78 Accepts]: Start accepts. Automaton has 1119 states and 1846 transitions. Word has length 116 [2024-11-18 14:56:36,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:56:36,773 INFO L471 AbstractCegarLoop]: Abstraction has 1119 states and 1846 transitions. [2024-11-18 14:56:36,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:56:36,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1119 states and 1846 transitions. [2024-11-18 14:56:36,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-18 14:56:36,774 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:56:36,775 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] [2024-11-18 14:56:36,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 14:56:36,775 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:56:36,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:56:36,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1658128561, now seen corresponding path program 1 times [2024-11-18 14:56:36,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:56:36,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139769052] [2024-11-18 14:56:36,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:56:36,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:56:36,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:56:36,877 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 14:56:36,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:56:36,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139769052] [2024-11-18 14:56:36,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139769052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:56:36,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:56:36,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:56:36,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668155877] [2024-11-18 14:56:36,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:56:36,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:56:36,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:56:36,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:56:36,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:56:36,880 INFO L87 Difference]: Start difference. First operand 1119 states and 1846 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 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 14:56:36,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:56:36,910 INFO L93 Difference]: Finished difference Result 2907 states and 4784 transitions. [2024-11-18 14:56:36,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:56:36,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2024-11-18 14:56:36,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:56:36,917 INFO L225 Difference]: With dead ends: 2907 [2024-11-18 14:56:36,917 INFO L226 Difference]: Without dead ends: 1977 [2024-11-18 14:56:36,918 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 14:56:36,919 INFO L432 NwaCegarLoop]: 533 mSDtfsCounter, 188 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:56:36,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 1030 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:56:36,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1977 states. [2024-11-18 14:56:36,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1977 to 1967. [2024-11-18 14:56:36,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1967 states, 1966 states have (on average 1.6388606307222788) internal successors, (3222), 1966 states have internal predecessors, (3222), 0 states have call successors, (0), 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 14:56:36,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1967 states to 1967 states and 3222 transitions. [2024-11-18 14:56:36,956 INFO L78 Accepts]: Start accepts. Automaton has 1967 states and 3222 transitions. Word has length 119 [2024-11-18 14:56:36,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:56:36,957 INFO L471 AbstractCegarLoop]: Abstraction has 1967 states and 3222 transitions. [2024-11-18 14:56:36,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 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 14:56:36,957 INFO L276 IsEmpty]: Start isEmpty. Operand 1967 states and 3222 transitions. [2024-11-18 14:56:36,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-18 14:56:36,959 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:56:36,959 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] [2024-11-18 14:56:36,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 14:56:36,959 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:56:36,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:56:36,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1735235476, now seen corresponding path program 1 times [2024-11-18 14:56:36,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:56:36,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421792522] [2024-11-18 14:56:36,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:56:36,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:56:37,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:56:37,230 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 14:56:37,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:56:37,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421792522] [2024-11-18 14:56:37,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421792522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:56:37,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:56:37,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:56:37,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43644416] [2024-11-18 14:56:37,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:56:37,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:56:37,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:56:37,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:56:37,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:56:37,235 INFO L87 Difference]: Start difference. First operand 1967 states and 3222 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 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 14:56:37,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:56:37,502 INFO L93 Difference]: Finished difference Result 10223 states and 16898 transitions. [2024-11-18 14:56:37,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 14:56:37,503 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 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 122 [2024-11-18 14:56:37,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:56:37,525 INFO L225 Difference]: With dead ends: 10223 [2024-11-18 14:56:37,525 INFO L226 Difference]: Without dead ends: 8445 [2024-11-18 14:56:37,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-18 14:56:37,529 INFO L432 NwaCegarLoop]: 527 mSDtfsCounter, 2115 mSDsluCounter, 3393 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2115 SdHoareTripleChecker+Valid, 3920 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:56:37,530 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2115 Valid, 3920 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:56:37,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8445 states. [2024-11-18 14:56:37,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8445 to 3625. [2024-11-18 14:56:37,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3625 states, 3624 states have (on average 1.6382450331125828) internal successors, (5937), 3624 states have internal predecessors, (5937), 0 states have call successors, (0), 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 14:56:37,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3625 states to 3625 states and 5937 transitions. [2024-11-18 14:56:37,641 INFO L78 Accepts]: Start accepts. Automaton has 3625 states and 5937 transitions. Word has length 122 [2024-11-18 14:56:37,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:56:37,642 INFO L471 AbstractCegarLoop]: Abstraction has 3625 states and 5937 transitions. [2024-11-18 14:56:37,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 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 14:56:37,642 INFO L276 IsEmpty]: Start isEmpty. Operand 3625 states and 5937 transitions. [2024-11-18 14:56:37,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-18 14:56:37,644 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:56:37,644 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] [2024-11-18 14:56:37,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 14:56:37,644 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:56:37,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:56:37,645 INFO L85 PathProgramCache]: Analyzing trace with hash -2109337106, now seen corresponding path program 1 times [2024-11-18 14:56:37,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:56:37,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174390609] [2024-11-18 14:56:37,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:56:37,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:56:37,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:56:37,761 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 14:56:37,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:56:37,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174390609] [2024-11-18 14:56:37,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174390609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:56:37,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:56:37,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:56:37,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039713733] [2024-11-18 14:56:37,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:56:37,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:56:37,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:56:37,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:56:37,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:56:37,764 INFO L87 Difference]: Start difference. First operand 3625 states and 5937 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 0 states have call successors, (0), 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 14:56:37,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:56:37,847 INFO L93 Difference]: Finished difference Result 10605 states and 17475 transitions. [2024-11-18 14:56:37,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:56:37,848 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 0 states have call successors, (0), 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 123 [2024-11-18 14:56:37,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:56:37,867 INFO L225 Difference]: With dead ends: 10605 [2024-11-18 14:56:37,867 INFO L226 Difference]: Without dead ends: 7169 [2024-11-18 14:56:37,874 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 14:56:37,875 INFO L432 NwaCegarLoop]: 527 mSDtfsCounter, 658 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:56:37,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [658 Valid, 1605 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:56:37,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7169 states. [2024-11-18 14:56:37,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7169 to 5380. [2024-11-18 14:56:38,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5380 states, 5379 states have (on average 1.6417549730433165) internal successors, (8831), 5379 states have internal predecessors, (8831), 0 states have call successors, (0), 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 14:56:38,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5380 states to 5380 states and 8831 transitions. [2024-11-18 14:56:38,022 INFO L78 Accepts]: Start accepts. Automaton has 5380 states and 8831 transitions. Word has length 123 [2024-11-18 14:56:38,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:56:38,023 INFO L471 AbstractCegarLoop]: Abstraction has 5380 states and 8831 transitions. [2024-11-18 14:56:38,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 0 states have call successors, (0), 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 14:56:38,023 INFO L276 IsEmpty]: Start isEmpty. Operand 5380 states and 8831 transitions. [2024-11-18 14:56:38,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-18 14:56:38,025 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:56:38,025 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] [2024-11-18 14:56:38,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 14:56:38,026 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:56:38,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:56:38,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1027444837, now seen corresponding path program 1 times [2024-11-18 14:56:38,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:56:38,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885222482] [2024-11-18 14:56:38,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:56:38,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:56:38,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:56:38,152 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 14:56:38,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:56:38,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885222482] [2024-11-18 14:56:38,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885222482] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:56:38,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:56:38,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:56:38,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858082193] [2024-11-18 14:56:38,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:56:38,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:56:38,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:56:38,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:56:38,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:56:38,154 INFO L87 Difference]: Start difference. First operand 5380 states and 8831 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 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 14:56:38,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:56:38,253 INFO L93 Difference]: Finished difference Result 15777 states and 25981 transitions. [2024-11-18 14:56:38,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:56:38,254 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2024-11-18 14:56:38,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:56:38,280 INFO L225 Difference]: With dead ends: 15777 [2024-11-18 14:56:38,281 INFO L226 Difference]: Without dead ends: 10586 [2024-11-18 14:56:38,291 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 14:56:38,292 INFO L432 NwaCegarLoop]: 526 mSDtfsCounter, 656 mSDsluCounter, 1127 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 1653 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:56:38,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 1653 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:56:38,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10586 states. [2024-11-18 14:56:38,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10586 to 7959. [2024-11-18 14:56:38,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7959 states, 7958 states have (on average 1.6406132194018597) internal successors, (13056), 7958 states have internal predecessors, (13056), 0 states have call successors, (0), 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 14:56:38,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7959 states to 7959 states and 13056 transitions. [2024-11-18 14:56:38,472 INFO L78 Accepts]: Start accepts. Automaton has 7959 states and 13056 transitions. Word has length 124 [2024-11-18 14:56:38,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:56:38,472 INFO L471 AbstractCegarLoop]: Abstraction has 7959 states and 13056 transitions. [2024-11-18 14:56:38,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 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 14:56:38,473 INFO L276 IsEmpty]: Start isEmpty. Operand 7959 states and 13056 transitions. [2024-11-18 14:56:38,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-18 14:56:38,476 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:56:38,476 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] [2024-11-18 14:56:38,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 14:56:38,476 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:56:38,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:56:38,477 INFO L85 PathProgramCache]: Analyzing trace with hash -275676370, now seen corresponding path program 1 times [2024-11-18 14:56:38,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:56:38,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267748250] [2024-11-18 14:56:38,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:56:38,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:56:38,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:56:38,570 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 14:56:38,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:56:38,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267748250] [2024-11-18 14:56:38,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267748250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:56:38,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:56:38,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:56:38,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443901118] [2024-11-18 14:56:38,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:56:38,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:56:38,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:56:38,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:56:38,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:56:38,573 INFO L87 Difference]: Start difference. First operand 7959 states and 13056 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 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 14:56:38,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:56:38,656 INFO L93 Difference]: Finished difference Result 15656 states and 25739 transitions. [2024-11-18 14:56:38,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:56:38,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2024-11-18 14:56:38,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:56:38,677 INFO L225 Difference]: With dead ends: 15656 [2024-11-18 14:56:38,677 INFO L226 Difference]: Without dead ends: 11380 [2024-11-18 14:56:38,686 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 14:56:38,687 INFO L432 NwaCegarLoop]: 619 mSDtfsCounter, 193 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 1120 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 14:56:38,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 1120 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:56:38,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11380 states. [2024-11-18 14:56:38,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11380 to 11378. [2024-11-18 14:56:38,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11378 states, 11377 states have (on average 1.6374263865693943) internal successors, (18629), 11377 states have internal predecessors, (18629), 0 states have call successors, (0), 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 14:56:38,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11378 states to 11378 states and 18629 transitions. [2024-11-18 14:56:38,919 INFO L78 Accepts]: Start accepts. Automaton has 11378 states and 18629 transitions. Word has length 125 [2024-11-18 14:56:38,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:56:38,920 INFO L471 AbstractCegarLoop]: Abstraction has 11378 states and 18629 transitions. [2024-11-18 14:56:38,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 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 14:56:38,920 INFO L276 IsEmpty]: Start isEmpty. Operand 11378 states and 18629 transitions. [2024-11-18 14:56:38,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-18 14:56:38,923 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:56:38,923 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] [2024-11-18 14:56:38,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 14:56:38,923 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:56:38,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:56:38,924 INFO L85 PathProgramCache]: Analyzing trace with hash 15369622, now seen corresponding path program 1 times [2024-11-18 14:56:38,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:56:38,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212745040] [2024-11-18 14:56:38,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:56:38,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:56:38,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:56:39,063 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 14:56:39,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:56:39,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212745040] [2024-11-18 14:56:39,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212745040] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:56:39,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:56:39,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:56:39,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409586211] [2024-11-18 14:56:39,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:56:39,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:56:39,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:56:39,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:56:39,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:56:39,066 INFO L87 Difference]: Start difference. First operand 11378 states and 18629 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 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 14:56:39,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:56:39,171 INFO L93 Difference]: Finished difference Result 22088 states and 36263 transitions. [2024-11-18 14:56:39,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:56:39,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2024-11-18 14:56:39,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:56:39,200 INFO L225 Difference]: With dead ends: 22088 [2024-11-18 14:56:39,200 INFO L226 Difference]: Without dead ends: 16096 [2024-11-18 14:56:39,214 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 14:56:39,216 INFO L432 NwaCegarLoop]: 592 mSDtfsCounter, 187 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 1094 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 14:56:39,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 1094 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:56:39,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16096 states. [2024-11-18 14:56:39,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16096 to 16094. [2024-11-18 14:56:39,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16094 states, 16093 states have (on average 1.6340645000932081) internal successors, (26297), 16093 states have internal predecessors, (26297), 0 states have call successors, (0), 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 14:56:39,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16094 states to 16094 states and 26297 transitions. [2024-11-18 14:56:39,490 INFO L78 Accepts]: Start accepts. Automaton has 16094 states and 26297 transitions. Word has length 125 [2024-11-18 14:56:39,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:56:39,490 INFO L471 AbstractCegarLoop]: Abstraction has 16094 states and 26297 transitions. [2024-11-18 14:56:39,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 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 14:56:39,490 INFO L276 IsEmpty]: Start isEmpty. Operand 16094 states and 26297 transitions. [2024-11-18 14:56:39,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-18 14:56:39,492 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:56:39,492 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] [2024-11-18 14:56:39,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 14:56:39,492 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:56:39,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:56:39,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1843964843, now seen corresponding path program 1 times [2024-11-18 14:56:39,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:56:39,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219050085] [2024-11-18 14:56:39,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:56:39,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:56:39,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:56:39,642 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 14:56:39,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:56:39,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219050085] [2024-11-18 14:56:39,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219050085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:56:39,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:56:39,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:56:39,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425046096] [2024-11-18 14:56:39,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:56:39,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:56:39,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:56:39,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:56:39,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:56:39,644 INFO L87 Difference]: Start difference. First operand 16094 states and 26297 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 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 14:56:39,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:56:39,790 INFO L93 Difference]: Finished difference Result 50960 states and 83572 transitions. [2024-11-18 14:56:39,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:56:39,791 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2024-11-18 14:56:39,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:56:39,962 INFO L225 Difference]: With dead ends: 50960 [2024-11-18 14:56:39,962 INFO L226 Difference]: Without dead ends: 35474 [2024-11-18 14:56:39,979 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 14:56:39,982 INFO L432 NwaCegarLoop]: 524 mSDtfsCounter, 654 mSDsluCounter, 1026 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 1550 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:56:39,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [654 Valid, 1550 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:56:39,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35474 states. [2024-11-18 14:56:40,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35474 to 25732. [2024-11-18 14:56:40,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25732 states, 25731 states have (on average 1.6325444016944541) internal successors, (42007), 25731 states have internal predecessors, (42007), 0 states have call successors, (0), 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 14:56:40,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25732 states to 25732 states and 42007 transitions. [2024-11-18 14:56:40,436 INFO L78 Accepts]: Start accepts. Automaton has 25732 states and 42007 transitions. Word has length 125 [2024-11-18 14:56:40,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:56:40,437 INFO L471 AbstractCegarLoop]: Abstraction has 25732 states and 42007 transitions. [2024-11-18 14:56:40,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 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 14:56:40,437 INFO L276 IsEmpty]: Start isEmpty. Operand 25732 states and 42007 transitions. [2024-11-18 14:56:40,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-18 14:56:40,439 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:56:40,439 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] [2024-11-18 14:56:40,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 14:56:40,439 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:56:40,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:56:40,439 INFO L85 PathProgramCache]: Analyzing trace with hash -815921210, now seen corresponding path program 1 times [2024-11-18 14:56:40,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:56:40,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982774564] [2024-11-18 14:56:40,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:56:40,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:56:40,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:56:40,662 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 14:56:40,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:56:40,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982774564] [2024-11-18 14:56:40,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982774564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:56:40,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:56:40,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:56:40,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662074435] [2024-11-18 14:56:40,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:56:40,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:56:40,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:56:40,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:56:40,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:56:40,665 INFO L87 Difference]: Start difference. First operand 25732 states and 42007 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 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 14:56:40,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:56:40,844 INFO L93 Difference]: Finished difference Result 55910 states and 91585 transitions. [2024-11-18 14:56:40,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:56:40,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2024-11-18 14:56:40,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:56:40,907 INFO L225 Difference]: With dead ends: 55910 [2024-11-18 14:56:40,908 INFO L226 Difference]: Without dead ends: 38187 [2024-11-18 14:56:40,935 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 14:56:40,937 INFO L432 NwaCegarLoop]: 665 mSDtfsCounter, 199 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 1165 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 14:56:40,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 1165 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:56:40,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38187 states. [2024-11-18 14:56:41,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38187 to 38185. [2024-11-18 14:56:41,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38185 states, 38184 states have (on average 1.6302639849151477) internal successors, (62250), 38184 states have internal predecessors, (62250), 0 states have call successors, (0), 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 14:56:41,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38185 states to 38185 states and 62250 transitions. [2024-11-18 14:56:41,673 INFO L78 Accepts]: Start accepts. Automaton has 38185 states and 62250 transitions. Word has length 125 [2024-11-18 14:56:41,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:56:41,674 INFO L471 AbstractCegarLoop]: Abstraction has 38185 states and 62250 transitions. [2024-11-18 14:56:41,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 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 14:56:41,674 INFO L276 IsEmpty]: Start isEmpty. Operand 38185 states and 62250 transitions. [2024-11-18 14:56:41,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-18 14:56:41,675 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:56:41,675 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] [2024-11-18 14:56:41,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 14:56:41,675 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:56:41,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:56:41,676 INFO L85 PathProgramCache]: Analyzing trace with hash 2056786782, now seen corresponding path program 1 times [2024-11-18 14:56:41,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:56:41,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397625772] [2024-11-18 14:56:41,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:56:41,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:56:41,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:56:41,752 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 14:56:41,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:56:41,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397625772] [2024-11-18 14:56:41,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397625772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:56:41,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:56:41,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:56:41,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170485321] [2024-11-18 14:56:41,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:56:41,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:56:41,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:56:41,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:56:41,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:56:41,754 INFO L87 Difference]: Start difference. First operand 38185 states and 62250 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 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 14:56:42,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:56:42,068 INFO L93 Difference]: Finished difference Result 83692 states and 137539 transitions. [2024-11-18 14:56:42,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:56:42,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2024-11-18 14:56:42,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:56:42,148 INFO L225 Difference]: With dead ends: 83692 [2024-11-18 14:56:42,149 INFO L226 Difference]: Without dead ends: 56811 [2024-11-18 14:56:42,181 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 14:56:42,181 INFO L432 NwaCegarLoop]: 704 mSDtfsCounter, 205 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 1203 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 14:56:42,182 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 1203 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:56:42,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56811 states. [2024-11-18 14:56:43,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56811 to 56809. [2024-11-18 14:56:43,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56809 states, 56808 states have (on average 1.63212927756654) internal successors, (92718), 56808 states have internal predecessors, (92718), 0 states have call successors, (0), 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 14:56:43,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56809 states to 56809 states and 92718 transitions. [2024-11-18 14:56:43,204 INFO L78 Accepts]: Start accepts. Automaton has 56809 states and 92718 transitions. Word has length 125 [2024-11-18 14:56:43,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:56:43,205 INFO L471 AbstractCegarLoop]: Abstraction has 56809 states and 92718 transitions. [2024-11-18 14:56:43,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 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 14:56:43,205 INFO L276 IsEmpty]: Start isEmpty. Operand 56809 states and 92718 transitions. [2024-11-18 14:56:43,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-18 14:56:43,206 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:56:43,206 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] [2024-11-18 14:56:43,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 14:56:43,207 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:56:43,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:56:43,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1381723230, now seen corresponding path program 1 times [2024-11-18 14:56:43,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:56:43,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936731549] [2024-11-18 14:56:43,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:56:43,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:56:43,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:56:43,465 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 14:56:43,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:56:43,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936731549] [2024-11-18 14:56:43,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936731549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:56:43,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:56:43,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:56:43,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999514364] [2024-11-18 14:56:43,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:56:43,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:56:43,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:56:43,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:56:43,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:56:43,467 INFO L87 Difference]: Start difference. First operand 56809 states and 92718 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:56:44,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:56:44,147 INFO L93 Difference]: Finished difference Result 182062 states and 297983 transitions. [2024-11-18 14:56:44,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:56:44,147 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2024-11-18 14:56:44,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:56:44,371 INFO L225 Difference]: With dead ends: 182062 [2024-11-18 14:56:44,372 INFO L226 Difference]: Without dead ends: 125497 [2024-11-18 14:56:44,443 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 14:56:44,444 INFO L432 NwaCegarLoop]: 525 mSDtfsCounter, 652 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 1766 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 14:56:44,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [652 Valid, 1766 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:56:44,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125497 states. [2024-11-18 14:56:45,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125497 to 90928. [2024-11-18 14:56:45,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90928 states, 90927 states have (on average 1.6284601933419116) internal successors, (148071), 90927 states have internal predecessors, (148071), 0 states have call successors, (0), 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 14:56:45,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90928 states to 90928 states and 148071 transitions. [2024-11-18 14:56:45,821 INFO L78 Accepts]: Start accepts. Automaton has 90928 states and 148071 transitions. Word has length 126 [2024-11-18 14:56:45,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:56:45,821 INFO L471 AbstractCegarLoop]: Abstraction has 90928 states and 148071 transitions. [2024-11-18 14:56:45,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:56:45,822 INFO L276 IsEmpty]: Start isEmpty. Operand 90928 states and 148071 transitions. [2024-11-18 14:56:45,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-18 14:56:45,823 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:56:45,823 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] [2024-11-18 14:56:45,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 14:56:45,823 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:56:45,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:56:45,824 INFO L85 PathProgramCache]: Analyzing trace with hash 2086532755, now seen corresponding path program 1 times [2024-11-18 14:56:45,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:56:45,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027450012] [2024-11-18 14:56:45,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:56:45,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:56:45,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:56:46,422 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 14:56:46,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:56:46,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027450012] [2024-11-18 14:56:46,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027450012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:56:46,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:56:46,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:56:46,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736003542] [2024-11-18 14:56:46,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:56:46,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:56:46,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:56:46,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:56:46,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:56:46,424 INFO L87 Difference]: Start difference. First operand 90928 states and 148071 transitions. Second operand has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 0 states have call successors, (0), 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 14:56:46,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:56:46,936 INFO L93 Difference]: Finished difference Result 181614 states and 295752 transitions. [2024-11-18 14:56:46,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:56:46,937 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 0 states have call successors, (0), 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 128 [2024-11-18 14:56:46,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:56:47,075 INFO L225 Difference]: With dead ends: 181614 [2024-11-18 14:56:47,076 INFO L226 Difference]: Without dead ends: 90930 [2024-11-18 14:56:47,442 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:56:47,442 INFO L432 NwaCegarLoop]: 531 mSDtfsCounter, 381 mSDsluCounter, 1509 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 2040 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:56:47,446 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 2040 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:56:47,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90930 states. [2024-11-18 14:56:48,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90930 to 90928. [2024-11-18 14:56:48,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90928 states, 90927 states have (on average 1.6215865474501523) internal successors, (147446), 90927 states have internal predecessors, (147446), 0 states have call successors, (0), 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 14:56:48,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90928 states to 90928 states and 147446 transitions. [2024-11-18 14:56:48,873 INFO L78 Accepts]: Start accepts. Automaton has 90928 states and 147446 transitions. Word has length 128 [2024-11-18 14:56:48,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:56:48,873 INFO L471 AbstractCegarLoop]: Abstraction has 90928 states and 147446 transitions. [2024-11-18 14:56:48,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 0 states have call successors, (0), 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 14:56:48,874 INFO L276 IsEmpty]: Start isEmpty. Operand 90928 states and 147446 transitions. [2024-11-18 14:56:48,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-18 14:56:48,874 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:56:48,875 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] [2024-11-18 14:56:48,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 14:56:48,875 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:56:48,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:56:48,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1082243879, now seen corresponding path program 1 times [2024-11-18 14:56:48,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:56:48,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659048636] [2024-11-18 14:56:48,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:56:48,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:56:48,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:56:49,119 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 14:56:49,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:56:49,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659048636] [2024-11-18 14:56:49,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659048636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:56:49,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:56:49,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:56:49,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910256747] [2024-11-18 14:56:49,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:56:49,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:56:49,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:56:49,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:56:49,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:56:49,121 INFO L87 Difference]: Start difference. First operand 90928 states and 147446 transitions. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:56:50,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:56:50,145 INFO L93 Difference]: Finished difference Result 265772 states and 431468 transitions. [2024-11-18 14:56:50,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:56:50,146 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2024-11-18 14:56:50,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:56:50,448 INFO L225 Difference]: With dead ends: 265772 [2024-11-18 14:56:50,448 INFO L226 Difference]: Without dead ends: 175088 [2024-11-18 14:56:50,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:56:50,512 INFO L432 NwaCegarLoop]: 526 mSDtfsCounter, 190 mSDsluCounter, 2036 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 2562 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:56:50,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 2562 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:56:50,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175088 states. [2024-11-18 14:56:52,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175088 to 175086. [2024-11-18 14:56:52,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175086 states, 175085 states have (on average 1.6129023045949111) internal successors, (282395), 175085 states have internal predecessors, (282395), 0 states have call successors, (0), 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 14:56:53,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175086 states to 175086 states and 282395 transitions. [2024-11-18 14:56:53,036 INFO L78 Accepts]: Start accepts. Automaton has 175086 states and 282395 transitions. Word has length 131 [2024-11-18 14:56:53,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:56:53,037 INFO L471 AbstractCegarLoop]: Abstraction has 175086 states and 282395 transitions. [2024-11-18 14:56:53,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:56:53,037 INFO L276 IsEmpty]: Start isEmpty. Operand 175086 states and 282395 transitions. [2024-11-18 14:56:53,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-18 14:56:53,038 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:56:53,038 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] [2024-11-18 14:56:53,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 14:56:53,039 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:56:53,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:56:53,039 INFO L85 PathProgramCache]: Analyzing trace with hash -812087216, now seen corresponding path program 1 times [2024-11-18 14:56:53,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:56:53,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403060789] [2024-11-18 14:56:53,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:56:53,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:56:53,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:56:54,381 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 14:56:54,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:56:54,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403060789] [2024-11-18 14:56:54,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403060789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:56:54,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:56:54,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:56:54,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241831125] [2024-11-18 14:56:54,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:56:54,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:56:54,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:56:54,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:56:54,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:56:54,384 INFO L87 Difference]: Start difference. First operand 175086 states and 282395 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 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 14:56:54,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:56:54,826 INFO L93 Difference]: Finished difference Result 178960 states and 288204 transitions. [2024-11-18 14:56:54,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:56:54,827 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2024-11-18 14:56:54,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:56:55,132 INFO L225 Difference]: With dead ends: 178960 [2024-11-18 14:56:55,133 INFO L226 Difference]: Without dead ends: 178958 [2024-11-18 14:56:55,198 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:56:55,199 INFO L432 NwaCegarLoop]: 533 mSDtfsCounter, 0 mSDsluCounter, 1582 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2115 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:56:55,199 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2115 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:56:55,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178958 states. [2024-11-18 14:56:57,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178958 to 178958. [2024-11-18 14:56:57,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178958 states, 178957 states have (on average 1.5994903803707037) internal successors, (286240), 178957 states have internal predecessors, (286240), 0 states have call successors, (0), 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 14:56:58,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178958 states to 178958 states and 286240 transitions. [2024-11-18 14:56:58,348 INFO L78 Accepts]: Start accepts. Automaton has 178958 states and 286240 transitions. Word has length 132 [2024-11-18 14:56:58,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:56:58,352 INFO L471 AbstractCegarLoop]: Abstraction has 178958 states and 286240 transitions. [2024-11-18 14:56:58,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 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 14:56:58,353 INFO L276 IsEmpty]: Start isEmpty. Operand 178958 states and 286240 transitions. [2024-11-18 14:56:58,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-18 14:56:58,376 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:56:58,377 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:56:58,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 14:56:58,377 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:56:58,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:56:58,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1146801810, now seen corresponding path program 1 times [2024-11-18 14:56:58,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:56:58,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807722227] [2024-11-18 14:56:58,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:56:58,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:56:58,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:56:58,960 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-18 14:56:58,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:56:58,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807722227] [2024-11-18 14:56:58,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807722227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:56:58,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:56:58,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:56:58,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099153564] [2024-11-18 14:56:58,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:56:58,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:56:58,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:56:58,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:56:58,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:56:58,963 INFO L87 Difference]: Start difference. First operand 178958 states and 286240 transitions. Second operand has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 6 states have internal predecessors, (151), 0 states have call successors, (0), 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 14:57:01,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:57:01,324 INFO L93 Difference]: Finished difference Result 487720 states and 782945 transitions. [2024-11-18 14:57:01,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:57:01,325 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 6 states have internal predecessors, (151), 0 states have call successors, (0), 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 163 [2024-11-18 14:57:01,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:57:02,217 INFO L225 Difference]: With dead ends: 487720 [2024-11-18 14:57:02,218 INFO L226 Difference]: Without dead ends: 409068 [2024-11-18 14:57:02,305 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:57:02,306 INFO L432 NwaCegarLoop]: 749 mSDtfsCounter, 1423 mSDsluCounter, 1956 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1423 SdHoareTripleChecker+Valid, 2705 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:57:02,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1423 Valid, 2705 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:57:02,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409068 states. [2024-11-18 14:57:06,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409068 to 287506. [2024-11-18 14:57:06,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287506 states, 287505 states have (on average 1.5981913358028557) internal successors, (459488), 287505 states have internal predecessors, (459488), 0 states have call successors, (0), 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 14:57:08,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287506 states to 287506 states and 459488 transitions. [2024-11-18 14:57:08,514 INFO L78 Accepts]: Start accepts. Automaton has 287506 states and 459488 transitions. Word has length 163 [2024-11-18 14:57:08,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:57:08,514 INFO L471 AbstractCegarLoop]: Abstraction has 287506 states and 459488 transitions. [2024-11-18 14:57:08,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 6 states have internal predecessors, (151), 0 states have call successors, (0), 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 14:57:08,515 INFO L276 IsEmpty]: Start isEmpty. Operand 287506 states and 459488 transitions. [2024-11-18 14:57:08,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-18 14:57:08,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:57:08,527 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:57:08,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 14:57:08,527 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:57:08,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:57:08,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1437847802, now seen corresponding path program 1 times [2024-11-18 14:57:08,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:57:08,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594117085] [2024-11-18 14:57:08,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:57:08,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:57:08,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:57:08,688 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-18 14:57:08,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:57:08,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594117085] [2024-11-18 14:57:08,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594117085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:57:08,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:57:08,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:57:08,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227768485] [2024-11-18 14:57:08,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:57:08,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:57:08,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:57:08,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:57:08,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:57:08,690 INFO L87 Difference]: Start difference. First operand 287506 states and 459488 transitions. Second operand has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 0 states have call successors, (0), 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 14:57:10,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:57:10,802 INFO L93 Difference]: Finished difference Result 518940 states and 833205 transitions. [2024-11-18 14:57:10,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:57:10,803 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 0 states have call successors, (0), 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 163 [2024-11-18 14:57:10,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:57:11,751 INFO L225 Difference]: With dead ends: 518940 [2024-11-18 14:57:11,752 INFO L226 Difference]: Without dead ends: 440288 [2024-11-18 14:57:11,840 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:57:11,840 INFO L432 NwaCegarLoop]: 752 mSDtfsCounter, 1394 mSDsluCounter, 2299 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1394 SdHoareTripleChecker+Valid, 3051 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:57:11,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1394 Valid, 3051 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:57:12,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440288 states. [2024-11-18 14:57:16,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440288 to 388624. [2024-11-18 14:57:17,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388624 states, 388623 states have (on average 1.599555353131441) internal successors, (621624), 388623 states have internal predecessors, (621624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)