./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+cfa-reducer.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 3cf612fb43c98d640569a1c9328794313185fe1b6a4dbfc7e502cbb16fa8754d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 03:51:20,181 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 03:51:20,246 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 03:51:20,252 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 03:51:20,254 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 03:51:20,287 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 03:51:20,288 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 03:51:20,288 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 03:51:20,289 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 03:51:20,290 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 03:51:20,290 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 03:51:20,291 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 03:51:20,291 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 03:51:20,293 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 03:51:20,294 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 03:51:20,294 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 03:51:20,294 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 03:51:20,295 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 03:51:20,295 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 03:51:20,295 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 03:51:20,295 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 03:51:20,296 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 03:51:20,296 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 03:51:20,297 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 03:51:20,297 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 03:51:20,297 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 03:51:20,297 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 03:51:20,298 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 03:51:20,298 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 03:51:20,298 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 03:51:20,299 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 03:51:20,299 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 03:51:20,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:51:20,300 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 03:51:20,300 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 03:51:20,300 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 03:51:20,301 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 03:51:20,301 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 03:51:20,301 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 03:51:20,302 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 03:51:20,302 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 03:51:20,303 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 03:51:20,303 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3cf612fb43c98d640569a1c9328794313185fe1b6a4dbfc7e502cbb16fa8754d [2024-10-11 03:51:20,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 03:51:20,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 03:51:20,652 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 03:51:20,653 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 03:51:20,654 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 03:51:20,655 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+cfa-reducer.c [2024-10-11 03:51:22,069 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 03:51:22,299 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 03:51:22,300 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+cfa-reducer.c [2024-10-11 03:51:22,317 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/811df0066/99f3537fe0d747a587a22d293ea19b41/FLAG32b9f2728 [2024-10-11 03:51:22,330 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/811df0066/99f3537fe0d747a587a22d293ea19b41 [2024-10-11 03:51:22,333 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 03:51:22,334 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 03:51:22,339 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 03:51:22,339 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 03:51:22,345 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 03:51:22,345 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:51:22" (1/1) ... [2024-10-11 03:51:22,348 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51457308 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:51:22, skipping insertion in model container [2024-10-11 03:51:22,348 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:51:22" (1/1) ... [2024-10-11 03:51:22,396 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 03:51:22,652 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+cfa-reducer.c[7633,7646] [2024-10-11 03:51:22,696 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:51:22,724 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 03:51:22,789 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+cfa-reducer.c[7633,7646] [2024-10-11 03:51:22,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:51:22,836 INFO L204 MainTranslator]: Completed translation [2024-10-11 03:51:22,836 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:51:22 WrapperNode [2024-10-11 03:51:22,837 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 03:51:22,838 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 03:51:22,838 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 03:51:22,839 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 03:51:22,845 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:51:22" (1/1) ... [2024-10-11 03:51:22,864 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:51:22" (1/1) ... [2024-10-11 03:51:22,913 INFO L138 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 630 [2024-10-11 03:51:22,914 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 03:51:22,915 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 03:51:22,915 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 03:51:22,915 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 03:51:22,926 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:51:22" (1/1) ... [2024-10-11 03:51:22,926 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:51:22" (1/1) ... [2024-10-11 03:51:22,930 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:51:22" (1/1) ... [2024-10-11 03:51:22,952 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-11 03:51:22,953 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:51:22" (1/1) ... [2024-10-11 03:51:22,953 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:51:22" (1/1) ... [2024-10-11 03:51:22,962 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:51:22" (1/1) ... [2024-10-11 03:51:22,966 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:51:22" (1/1) ... [2024-10-11 03:51:22,968 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:51:22" (1/1) ... [2024-10-11 03:51:22,970 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:51:22" (1/1) ... [2024-10-11 03:51:22,973 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 03:51:22,974 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 03:51:22,974 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 03:51:22,975 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 03:51:22,977 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:51:22" (1/1) ... [2024-10-11 03:51:22,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:51:23,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:51:23,026 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 03:51:23,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 03:51:23,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 03:51:23,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 03:51:23,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 03:51:23,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 03:51:23,255 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 03:51:23,257 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 03:51:23,763 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2024-10-11 03:51:23,766 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 03:51:23,808 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 03:51:23,809 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 03:51:23,809 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:51:23 BoogieIcfgContainer [2024-10-11 03:51:23,809 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 03:51:23,811 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 03:51:23,811 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 03:51:23,815 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 03:51:23,815 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:51:22" (1/3) ... [2024-10-11 03:51:23,816 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c5c146c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:51:23, skipping insertion in model container [2024-10-11 03:51:23,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:51:22" (2/3) ... [2024-10-11 03:51:23,816 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c5c146c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:51:23, skipping insertion in model container [2024-10-11 03:51:23,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:51:23" (3/3) ... [2024-10-11 03:51:23,818 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+cfa-reducer.c [2024-10-11 03:51:23,837 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 03:51:23,837 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 03:51:23,906 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 03:51:23,916 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;@424a1b8d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 03:51:23,916 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 03:51:23,923 INFO L276 IsEmpty]: Start isEmpty. Operand has 134 states, 132 states have (on average 1.7651515151515151) internal successors, (233), 133 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:23,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-11 03:51:23,936 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:51:23,938 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:51:23,939 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:51:23,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:51:23,946 INFO L85 PathProgramCache]: Analyzing trace with hash 555090615, now seen corresponding path program 1 times [2024-10-11 03:51:23,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:51:23,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75138943] [2024-10-11 03:51:23,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:51:23,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:51:24,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:51:24,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:51:24,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:51:24,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75138943] [2024-10-11 03:51:24,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75138943] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:51:24,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:51:24,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:51:24,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210344480] [2024-10-11 03:51:24,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:51:24,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:51:24,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:51:24,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:51:24,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:51:24,555 INFO L87 Difference]: Start difference. First operand has 134 states, 132 states have (on average 1.7651515151515151) internal successors, (233), 133 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:24,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:51:24,714 INFO L93 Difference]: Finished difference Result 290 states and 480 transitions. [2024-10-11 03:51:24,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:51:24,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-10-11 03:51:24,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:51:24,727 INFO L225 Difference]: With dead ends: 290 [2024-10-11 03:51:24,727 INFO L226 Difference]: Without dead ends: 204 [2024-10-11 03:51:24,730 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:51:24,733 INFO L432 NwaCegarLoop]: 340 mSDtfsCounter, 165 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:51:24,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 467 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:51:24,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2024-10-11 03:51:24,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 202. [2024-10-11 03:51:24,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 201 states have (on average 1.4477611940298507) internal successors, (291), 201 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:24,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 291 transitions. [2024-10-11 03:51:24,790 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 291 transitions. Word has length 85 [2024-10-11 03:51:24,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:51:24,791 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 291 transitions. [2024-10-11 03:51:24,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:24,791 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 291 transitions. [2024-10-11 03:51:24,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-11 03:51:24,795 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:51:24,796 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:51:24,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 03:51:24,796 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:51:24,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:51:24,797 INFO L85 PathProgramCache]: Analyzing trace with hash 2129284340, now seen corresponding path program 1 times [2024-10-11 03:51:24,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:51:24,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295740179] [2024-10-11 03:51:24,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:51:24,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:51:24,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:51:24,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:51:24,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:51:24,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295740179] [2024-10-11 03:51:24,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295740179] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:51:24,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:51:24,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:51:24,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279335740] [2024-10-11 03:51:25,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:51:25,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:51:25,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:51:25,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:51:25,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:51:25,005 INFO L87 Difference]: Start difference. First operand 202 states and 291 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:25,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:51:25,045 INFO L93 Difference]: Finished difference Result 486 states and 743 transitions. [2024-10-11 03:51:25,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:51:25,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-10-11 03:51:25,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:51:25,050 INFO L225 Difference]: With dead ends: 486 [2024-10-11 03:51:25,051 INFO L226 Difference]: Without dead ends: 336 [2024-10-11 03:51:25,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:51:25,053 INFO L432 NwaCegarLoop]: 280 mSDtfsCounter, 112 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:51:25,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 406 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:51:25,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2024-10-11 03:51:25,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 334. [2024-10-11 03:51:25,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 333 states have (on average 1.5045045045045045) internal successors, (501), 333 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:25,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 501 transitions. [2024-10-11 03:51:25,081 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 501 transitions. Word has length 86 [2024-10-11 03:51:25,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:51:25,082 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 501 transitions. [2024-10-11 03:51:25,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:25,082 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 501 transitions. [2024-10-11 03:51:25,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-11 03:51:25,087 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:51:25,088 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:51:25,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 03:51:25,088 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:51:25,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:51:25,089 INFO L85 PathProgramCache]: Analyzing trace with hash 2096979309, now seen corresponding path program 1 times [2024-10-11 03:51:25,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:51:25,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594425573] [2024-10-11 03:51:25,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:51:25,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:51:25,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:51:25,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:51:25,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:51:25,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594425573] [2024-10-11 03:51:25,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594425573] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:51:25,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:51:25,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:51:25,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153243638] [2024-10-11 03:51:25,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:51:25,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:51:25,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:51:25,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:51:25,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:51:25,258 INFO L87 Difference]: Start difference. First operand 334 states and 501 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:25,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:51:25,296 INFO L93 Difference]: Finished difference Result 866 states and 1347 transitions. [2024-10-11 03:51:25,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:51:25,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2024-10-11 03:51:25,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:51:25,302 INFO L225 Difference]: With dead ends: 866 [2024-10-11 03:51:25,302 INFO L226 Difference]: Without dead ends: 584 [2024-10-11 03:51:25,305 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:51:25,306 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 107 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:51:25,307 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 402 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:51:25,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2024-10-11 03:51:25,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 582. [2024-10-11 03:51:25,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 581 states have (on average 1.5370051635111877) internal successors, (893), 581 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:25,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 893 transitions. [2024-10-11 03:51:25,330 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 893 transitions. Word has length 87 [2024-10-11 03:51:25,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:51:25,330 INFO L471 AbstractCegarLoop]: Abstraction has 582 states and 893 transitions. [2024-10-11 03:51:25,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:25,331 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 893 transitions. [2024-10-11 03:51:25,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-11 03:51:25,332 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:51:25,332 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:51:25,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 03:51:25,333 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:51:25,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:51:25,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1649402853, now seen corresponding path program 1 times [2024-10-11 03:51:25,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:51:25,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76477616] [2024-10-11 03:51:25,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:51:25,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:51:25,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:51:25,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:51:25,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:51:25,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76477616] [2024-10-11 03:51:25,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76477616] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:51:25,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:51:25,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:51:25,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460538160] [2024-10-11 03:51:25,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:51:25,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:51:25,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:51:25,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:51:25,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:51:25,506 INFO L87 Difference]: Start difference. First operand 582 states and 893 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:25,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:51:25,536 INFO L93 Difference]: Finished difference Result 1578 states and 2471 transitions. [2024-10-11 03:51:25,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:51:25,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-10-11 03:51:25,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:51:25,542 INFO L225 Difference]: With dead ends: 1578 [2024-10-11 03:51:25,543 INFO L226 Difference]: Without dead ends: 1048 [2024-10-11 03:51:25,544 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:51:25,546 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 102 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:51:25,547 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 398 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:51:25,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2024-10-11 03:51:25,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 1046. [2024-10-11 03:51:25,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1046 states, 1045 states have (on average 1.551196172248804) internal successors, (1621), 1045 states have internal predecessors, (1621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:25,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 1621 transitions. [2024-10-11 03:51:25,574 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 1621 transitions. Word has length 88 [2024-10-11 03:51:25,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:51:25,575 INFO L471 AbstractCegarLoop]: Abstraction has 1046 states and 1621 transitions. [2024-10-11 03:51:25,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:25,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1621 transitions. [2024-10-11 03:51:25,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-11 03:51:25,576 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:51:25,577 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] [2024-10-11 03:51:25,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 03:51:25,577 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:51:25,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:51:25,578 INFO L85 PathProgramCache]: Analyzing trace with hash -2093999040, now seen corresponding path program 1 times [2024-10-11 03:51:25,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:51:25,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468166551] [2024-10-11 03:51:25,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:51:25,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:51:25,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:51:25,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:51:25,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:51:25,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468166551] [2024-10-11 03:51:25,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468166551] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:51:25,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:51:25,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:51:25,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013030144] [2024-10-11 03:51:25,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:51:25,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:51:25,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:51:25,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:51:25,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:51:25,716 INFO L87 Difference]: Start difference. First operand 1046 states and 1621 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:25,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:51:25,755 INFO L93 Difference]: Finished difference Result 2906 states and 4551 transitions. [2024-10-11 03:51:25,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:51:25,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2024-10-11 03:51:25,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:51:25,765 INFO L225 Difference]: With dead ends: 2906 [2024-10-11 03:51:25,765 INFO L226 Difference]: Without dead ends: 1912 [2024-10-11 03:51:25,767 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:51:25,769 INFO L432 NwaCegarLoop]: 256 mSDtfsCounter, 97 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:51:25,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 394 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:51:25,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1912 states. [2024-10-11 03:51:25,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1912 to 1910. [2024-10-11 03:51:25,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1910 states, 1909 states have (on average 1.5531691985332634) internal successors, (2965), 1909 states have internal predecessors, (2965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:25,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1910 states to 1910 states and 2965 transitions. [2024-10-11 03:51:25,814 INFO L78 Accepts]: Start accepts. Automaton has 1910 states and 2965 transitions. Word has length 89 [2024-10-11 03:51:25,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:51:25,814 INFO L471 AbstractCegarLoop]: Abstraction has 1910 states and 2965 transitions. [2024-10-11 03:51:25,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:25,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1910 states and 2965 transitions. [2024-10-11 03:51:25,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-11 03:51:25,816 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:51:25,816 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] [2024-10-11 03:51:25,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 03:51:25,816 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:51:25,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:51:25,817 INFO L85 PathProgramCache]: Analyzing trace with hash 999636698, now seen corresponding path program 1 times [2024-10-11 03:51:25,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:51:25,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526363334] [2024-10-11 03:51:25,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:51:25,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:51:25,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:51:25,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:51:25,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:51:25,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526363334] [2024-10-11 03:51:25,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526363334] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:51:25,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:51:25,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:51:25,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670942438] [2024-10-11 03:51:25,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:51:25,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:51:25,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:51:25,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:51:25,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:51:25,936 INFO L87 Difference]: Start difference. First operand 1910 states and 2965 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:25,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:51:25,973 INFO L93 Difference]: Finished difference Result 5370 states and 8375 transitions. [2024-10-11 03:51:25,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:51:25,974 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2024-10-11 03:51:25,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:51:25,986 INFO L225 Difference]: With dead ends: 5370 [2024-10-11 03:51:25,986 INFO L226 Difference]: Without dead ends: 3512 [2024-10-11 03:51:25,989 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:51:25,990 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 92 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:51:25,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 390 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:51:25,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3512 states. [2024-10-11 03:51:26,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3512 to 3510. [2024-10-11 03:51:26,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3510 states, 3509 states have (on average 1.5471644343117696) internal successors, (5429), 3509 states have internal predecessors, (5429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:26,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3510 states to 3510 states and 5429 transitions. [2024-10-11 03:51:26,075 INFO L78 Accepts]: Start accepts. Automaton has 3510 states and 5429 transitions. Word has length 90 [2024-10-11 03:51:26,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:51:26,076 INFO L471 AbstractCegarLoop]: Abstraction has 3510 states and 5429 transitions. [2024-10-11 03:51:26,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:26,076 INFO L276 IsEmpty]: Start isEmpty. Operand 3510 states and 5429 transitions. [2024-10-11 03:51:26,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-11 03:51:26,077 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:51:26,077 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] [2024-10-11 03:51:26,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 03:51:26,077 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:51:26,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:51:26,077 INFO L85 PathProgramCache]: Analyzing trace with hash 335643408, now seen corresponding path program 1 times [2024-10-11 03:51:26,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:51:26,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100854287] [2024-10-11 03:51:26,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:51:26,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:51:26,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:51:26,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:51:26,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:51:26,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100854287] [2024-10-11 03:51:26,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100854287] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:51:26,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:51:26,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:51:26,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071202579] [2024-10-11 03:51:26,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:51:26,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:51:26,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:51:26,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:51:26,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:51:26,186 INFO L87 Difference]: Start difference. First operand 3510 states and 5429 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:26,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:51:26,243 INFO L93 Difference]: Finished difference Result 9914 states and 15351 transitions. [2024-10-11 03:51:26,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:51:26,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2024-10-11 03:51:26,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:51:26,268 INFO L225 Difference]: With dead ends: 9914 [2024-10-11 03:51:26,268 INFO L226 Difference]: Without dead ends: 6456 [2024-10-11 03:51:26,277 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:51:26,280 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 87 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:51:26,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 386 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:51:26,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6456 states. [2024-10-11 03:51:26,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6456 to 6454. [2024-10-11 03:51:26,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6454 states, 6453 states have (on average 1.5355648535564854) internal successors, (9909), 6453 states have internal predecessors, (9909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:26,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6454 states to 6454 states and 9909 transitions. [2024-10-11 03:51:26,499 INFO L78 Accepts]: Start accepts. Automaton has 6454 states and 9909 transitions. Word has length 91 [2024-10-11 03:51:26,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:51:26,500 INFO L471 AbstractCegarLoop]: Abstraction has 6454 states and 9909 transitions. [2024-10-11 03:51:26,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:26,500 INFO L276 IsEmpty]: Start isEmpty. Operand 6454 states and 9909 transitions. [2024-10-11 03:51:26,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-11 03:51:26,501 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:51:26,502 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] [2024-10-11 03:51:26,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 03:51:26,502 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:51:26,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:51:26,503 INFO L85 PathProgramCache]: Analyzing trace with hash 426949996, now seen corresponding path program 1 times [2024-10-11 03:51:26,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:51:26,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326483058] [2024-10-11 03:51:26,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:51:26,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:51:26,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:51:26,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:51:26,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:51:26,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326483058] [2024-10-11 03:51:26,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326483058] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:51:26,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:51:26,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 03:51:26,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033806113] [2024-10-11 03:51:26,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:51:26,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 03:51:26,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:51:26,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 03:51:26,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:51:26,784 INFO L87 Difference]: Start difference. First operand 6454 states and 9909 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 9 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:27,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:51:27,589 INFO L93 Difference]: Finished difference Result 96082 states and 147907 transitions. [2024-10-11 03:51:27,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 03:51:27,590 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 9 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2024-10-11 03:51:27,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:51:27,781 INFO L225 Difference]: With dead ends: 96082 [2024-10-11 03:51:27,781 INFO L226 Difference]: Without dead ends: 89680 [2024-10-11 03:51:27,829 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-10-11 03:51:27,830 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 2471 mSDsluCounter, 3751 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2471 SdHoareTripleChecker+Valid, 3925 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:51:27,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2471 Valid, 3925 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:51:28,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89680 states. [2024-10-11 03:51:28,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89680 to 12854. [2024-10-11 03:51:28,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12854 states, 12853 states have (on average 1.5178557535205788) internal successors, (19509), 12853 states have internal predecessors, (19509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:28,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12854 states to 12854 states and 19509 transitions. [2024-10-11 03:51:28,977 INFO L78 Accepts]: Start accepts. Automaton has 12854 states and 19509 transitions. Word has length 92 [2024-10-11 03:51:28,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:51:28,977 INFO L471 AbstractCegarLoop]: Abstraction has 12854 states and 19509 transitions. [2024-10-11 03:51:28,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 9 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:28,978 INFO L276 IsEmpty]: Start isEmpty. Operand 12854 states and 19509 transitions. [2024-10-11 03:51:28,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-11 03:51:28,978 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:51:28,978 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] [2024-10-11 03:51:28,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 03:51:28,979 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:51:28,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:51:28,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1355234760, now seen corresponding path program 1 times [2024-10-11 03:51:28,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:51:28,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353588239] [2024-10-11 03:51:28,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:51:28,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:51:29,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:51:29,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:51:29,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:51:29,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353588239] [2024-10-11 03:51:29,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353588239] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:51:29,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:51:29,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:51:29,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783353641] [2024-10-11 03:51:29,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:51:29,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:51:29,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:51:29,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:51:29,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:51:29,084 INFO L87 Difference]: Start difference. First operand 12854 states and 19509 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:29,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:51:29,257 INFO L93 Difference]: Finished difference Result 31868 states and 48377 transitions. [2024-10-11 03:51:29,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:51:29,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-10-11 03:51:29,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:51:29,301 INFO L225 Difference]: With dead ends: 31868 [2024-10-11 03:51:29,301 INFO L226 Difference]: Without dead ends: 19066 [2024-10-11 03:51:29,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:51:29,322 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 78 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:51:29,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 346 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:51:29,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19066 states. [2024-10-11 03:51:29,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19066 to 19064. [2024-10-11 03:51:29,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19064 states, 19063 states have (on average 1.5069506373603316) internal successors, (28727), 19063 states have internal predecessors, (28727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:29,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19064 states to 19064 states and 28727 transitions. [2024-10-11 03:51:29,793 INFO L78 Accepts]: Start accepts. Automaton has 19064 states and 28727 transitions. Word has length 94 [2024-10-11 03:51:29,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:51:29,793 INFO L471 AbstractCegarLoop]: Abstraction has 19064 states and 28727 transitions. [2024-10-11 03:51:29,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:29,794 INFO L276 IsEmpty]: Start isEmpty. Operand 19064 states and 28727 transitions. [2024-10-11 03:51:29,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-11 03:51:29,794 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:51:29,795 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] [2024-10-11 03:51:29,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 03:51:29,795 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:51:29,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:51:29,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1376237415, now seen corresponding path program 1 times [2024-10-11 03:51:29,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:51:29,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614762225] [2024-10-11 03:51:29,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:51:29,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:51:29,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:51:30,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:51:30,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:51:30,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614762225] [2024-10-11 03:51:30,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614762225] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:51:30,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:51:30,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 03:51:30,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733201129] [2024-10-11 03:51:30,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:51:30,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 03:51:30,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:51:30,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 03:51:30,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:51:30,377 INFO L87 Difference]: Start difference. First operand 19064 states and 28727 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:30,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:51:30,892 INFO L93 Difference]: Finished difference Result 38076 states and 57401 transitions. [2024-10-11 03:51:30,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 03:51:30,892 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-10-11 03:51:30,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:51:30,933 INFO L225 Difference]: With dead ends: 38076 [2024-10-11 03:51:30,933 INFO L226 Difference]: Without dead ends: 19066 [2024-10-11 03:51:30,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-10-11 03:51:30,961 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 218 mSDsluCounter, 750 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:51:30,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 919 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:51:30,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19066 states. [2024-10-11 03:51:31,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19066 to 19064. [2024-10-11 03:51:31,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19064 states, 19063 states have (on average 1.4968787703929076) internal successors, (28535), 19063 states have internal predecessors, (28535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:31,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19064 states to 19064 states and 28535 transitions. [2024-10-11 03:51:31,338 INFO L78 Accepts]: Start accepts. Automaton has 19064 states and 28535 transitions. Word has length 94 [2024-10-11 03:51:31,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:51:31,339 INFO L471 AbstractCegarLoop]: Abstraction has 19064 states and 28535 transitions. [2024-10-11 03:51:31,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:31,340 INFO L276 IsEmpty]: Start isEmpty. Operand 19064 states and 28535 transitions. [2024-10-11 03:51:31,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-11 03:51:31,340 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:51:31,341 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] [2024-10-11 03:51:31,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 03:51:31,341 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:51:31,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:51:31,342 INFO L85 PathProgramCache]: Analyzing trace with hash -288222367, now seen corresponding path program 1 times [2024-10-11 03:51:31,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:51:31,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430187045] [2024-10-11 03:51:31,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:51:31,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:51:31,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:51:31,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:51:31,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:51:31,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430187045] [2024-10-11 03:51:31,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430187045] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:51:31,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:51:31,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:51:31,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996074273] [2024-10-11 03:51:31,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:51:31,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:51:31,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:51:31,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:51:31,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:51:31,470 INFO L87 Difference]: Start difference. First operand 19064 states and 28535 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:31,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:51:31,750 INFO L93 Difference]: Finished difference Result 38074 states and 57016 transitions. [2024-10-11 03:51:31,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:51:31,751 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-10-11 03:51:31,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:51:31,776 INFO L225 Difference]: With dead ends: 38074 [2024-10-11 03:51:31,776 INFO L226 Difference]: Without dead ends: 19064 [2024-10-11 03:51:31,795 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:51:31,796 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 447 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:51:31,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 129 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:51:31,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19064 states. [2024-10-11 03:51:31,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19064 to 19064. [2024-10-11 03:51:32,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19064 states, 19063 states have (on average 1.4868069034254838) internal successors, (28343), 19063 states have internal predecessors, (28343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:32,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19064 states to 19064 states and 28343 transitions. [2024-10-11 03:51:32,053 INFO L78 Accepts]: Start accepts. Automaton has 19064 states and 28343 transitions. Word has length 95 [2024-10-11 03:51:32,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:51:32,053 INFO L471 AbstractCegarLoop]: Abstraction has 19064 states and 28343 transitions. [2024-10-11 03:51:32,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:32,054 INFO L276 IsEmpty]: Start isEmpty. Operand 19064 states and 28343 transitions. [2024-10-11 03:51:32,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-11 03:51:32,054 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:51:32,054 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] [2024-10-11 03:51:32,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 03:51:32,055 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:51:32,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:51:32,055 INFO L85 PathProgramCache]: Analyzing trace with hash 80048860, now seen corresponding path program 1 times [2024-10-11 03:51:32,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:51:32,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191442972] [2024-10-11 03:51:32,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:51:32,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:51:32,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:51:32,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:51:32,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:51:32,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191442972] [2024-10-11 03:51:32,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191442972] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:51:32,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:51:32,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:51:32,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023761712] [2024-10-11 03:51:32,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:51:32,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:51:32,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:51:32,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:51:32,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:51:32,305 INFO L87 Difference]: Start difference. First operand 19064 states and 28343 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:32,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:51:32,481 INFO L93 Difference]: Finished difference Result 38074 states and 56632 transitions. [2024-10-11 03:51:32,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:51:32,481 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-10-11 03:51:32,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:51:32,507 INFO L225 Difference]: With dead ends: 38074 [2024-10-11 03:51:32,509 INFO L226 Difference]: Without dead ends: 19064 [2024-10-11 03:51:32,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:51:32,529 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 418 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:51:32,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 145 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:51:32,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19064 states. [2024-10-11 03:51:32,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19064 to 19064. [2024-10-11 03:51:32,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19064 states, 19063 states have (on average 1.47673503645806) internal successors, (28151), 19063 states have internal predecessors, (28151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:32,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19064 states to 19064 states and 28151 transitions. [2024-10-11 03:51:32,930 INFO L78 Accepts]: Start accepts. Automaton has 19064 states and 28151 transitions. Word has length 95 [2024-10-11 03:51:32,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:51:32,930 INFO L471 AbstractCegarLoop]: Abstraction has 19064 states and 28151 transitions. [2024-10-11 03:51:32,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:32,931 INFO L276 IsEmpty]: Start isEmpty. Operand 19064 states and 28151 transitions. [2024-10-11 03:51:32,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-11 03:51:32,932 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:51:32,932 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] [2024-10-11 03:51:32,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 03:51:32,932 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:51:32,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:51:32,933 INFO L85 PathProgramCache]: Analyzing trace with hash 208134167, now seen corresponding path program 1 times [2024-10-11 03:51:32,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:51:32,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260549659] [2024-10-11 03:51:32,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:51:32,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:51:32,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:51:33,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:51:33,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:51:33,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260549659] [2024-10-11 03:51:33,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260549659] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:51:33,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:51:33,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:51:33,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807559527] [2024-10-11 03:51:33,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:51:33,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:51:33,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:51:33,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:51:33,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:51:33,089 INFO L87 Difference]: Start difference. First operand 19064 states and 28151 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:33,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:51:33,278 INFO L93 Difference]: Finished difference Result 38074 states and 56248 transitions. [2024-10-11 03:51:33,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:51:33,278 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-10-11 03:51:33,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:51:33,299 INFO L225 Difference]: With dead ends: 38074 [2024-10-11 03:51:33,300 INFO L226 Difference]: Without dead ends: 19064 [2024-10-11 03:51:33,319 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:51:33,320 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 389 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:51:33,320 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 161 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:51:33,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19064 states. [2024-10-11 03:51:33,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19064 to 19064. [2024-10-11 03:51:33,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19064 states, 19063 states have (on average 1.4666631694906362) internal successors, (27959), 19063 states have internal predecessors, (27959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:33,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19064 states to 19064 states and 27959 transitions. [2024-10-11 03:51:33,673 INFO L78 Accepts]: Start accepts. Automaton has 19064 states and 27959 transitions. Word has length 95 [2024-10-11 03:51:33,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:51:33,673 INFO L471 AbstractCegarLoop]: Abstraction has 19064 states and 27959 transitions. [2024-10-11 03:51:33,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:33,673 INFO L276 IsEmpty]: Start isEmpty. Operand 19064 states and 27959 transitions. [2024-10-11 03:51:33,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-11 03:51:33,674 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:51:33,674 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] [2024-10-11 03:51:33,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 03:51:33,675 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:51:33,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:51:33,675 INFO L85 PathProgramCache]: Analyzing trace with hash -321156334, now seen corresponding path program 1 times [2024-10-11 03:51:33,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:51:33,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200946260] [2024-10-11 03:51:33,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:51:33,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:51:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:51:33,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:51:33,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:51:33,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200946260] [2024-10-11 03:51:33,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200946260] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:51:33,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:51:33,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:51:33,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896466613] [2024-10-11 03:51:33,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:51:33,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:51:33,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:51:33,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:51:33,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:51:33,798 INFO L87 Difference]: Start difference. First operand 19064 states and 27959 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:34,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:51:34,103 INFO L93 Difference]: Finished difference Result 38074 states and 55864 transitions. [2024-10-11 03:51:34,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:51:34,104 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-10-11 03:51:34,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:51:34,135 INFO L225 Difference]: With dead ends: 38074 [2024-10-11 03:51:34,136 INFO L226 Difference]: Without dead ends: 19064 [2024-10-11 03:51:34,146 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:51:34,147 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 425 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:51:34,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 137 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:51:34,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19064 states. [2024-10-11 03:51:34,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19064 to 19064. [2024-10-11 03:51:34,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19064 states, 19063 states have (on average 1.4565913025232125) internal successors, (27767), 19063 states have internal predecessors, (27767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:34,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19064 states to 19064 states and 27767 transitions. [2024-10-11 03:51:34,393 INFO L78 Accepts]: Start accepts. Automaton has 19064 states and 27767 transitions. Word has length 95 [2024-10-11 03:51:34,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:51:34,393 INFO L471 AbstractCegarLoop]: Abstraction has 19064 states and 27767 transitions. [2024-10-11 03:51:34,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:34,393 INFO L276 IsEmpty]: Start isEmpty. Operand 19064 states and 27767 transitions. [2024-10-11 03:51:34,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-11 03:51:34,394 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:51:34,394 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] [2024-10-11 03:51:34,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 03:51:34,394 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:51:34,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:51:34,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1084020041, now seen corresponding path program 1 times [2024-10-11 03:51:34,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:51:34,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949614388] [2024-10-11 03:51:34,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:51:34,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:51:34,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:51:34,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:51:34,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:51:34,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949614388] [2024-10-11 03:51:34,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949614388] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:51:34,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:51:34,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:51:34,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430704574] [2024-10-11 03:51:34,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:51:34,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:51:34,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:51:34,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:51:34,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:51:34,611 INFO L87 Difference]: Start difference. First operand 19064 states and 27767 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:34,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:51:34,770 INFO L93 Difference]: Finished difference Result 38074 states and 55480 transitions. [2024-10-11 03:51:34,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:51:34,771 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-10-11 03:51:34,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:51:34,795 INFO L225 Difference]: With dead ends: 38074 [2024-10-11 03:51:34,796 INFO L226 Difference]: Without dead ends: 19064 [2024-10-11 03:51:34,812 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:51:34,815 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 448 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:51:34,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 121 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:51:34,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19064 states. [2024-10-11 03:51:35,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19064 to 19064. [2024-10-11 03:51:35,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19064 states, 19063 states have (on average 1.4465194355557887) internal successors, (27575), 19063 states have internal predecessors, (27575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:35,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19064 states to 19064 states and 27575 transitions. [2024-10-11 03:51:35,187 INFO L78 Accepts]: Start accepts. Automaton has 19064 states and 27575 transitions. Word has length 95 [2024-10-11 03:51:35,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:51:35,187 INFO L471 AbstractCegarLoop]: Abstraction has 19064 states and 27575 transitions. [2024-10-11 03:51:35,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:35,187 INFO L276 IsEmpty]: Start isEmpty. Operand 19064 states and 27575 transitions. [2024-10-11 03:51:35,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-11 03:51:35,188 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:51:35,188 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] [2024-10-11 03:51:35,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 03:51:35,188 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:51:35,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:51:35,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1469530140, now seen corresponding path program 1 times [2024-10-11 03:51:35,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:51:35,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145175277] [2024-10-11 03:51:35,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:51:35,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:51:35,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:51:35,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:51:35,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:51:35,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145175277] [2024-10-11 03:51:35,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145175277] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:51:35,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:51:35,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 03:51:35,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366305720] [2024-10-11 03:51:35,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:51:35,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:51:35,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:51:35,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:51:35,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:51:35,542 INFO L87 Difference]: Start difference. First operand 19064 states and 27575 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:35,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:51:35,624 INFO L93 Difference]: Finished difference Result 19578 states and 28344 transitions. [2024-10-11 03:51:35,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:51:35,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-10-11 03:51:35,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:51:35,652 INFO L225 Difference]: With dead ends: 19578 [2024-10-11 03:51:35,653 INFO L226 Difference]: Without dead ends: 19576 [2024-10-11 03:51:35,662 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:51:35,663 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 0 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:51:35,663 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 671 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:51:35,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19576 states. [2024-10-11 03:51:35,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19576 to 19576. [2024-10-11 03:51:35,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19576 states, 19575 states have (on average 1.4315708812260537) internal successors, (28023), 19575 states have internal predecessors, (28023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:36,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19576 states to 19576 states and 28023 transitions. [2024-10-11 03:51:36,246 INFO L78 Accepts]: Start accepts. Automaton has 19576 states and 28023 transitions. Word has length 95 [2024-10-11 03:51:36,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:51:36,246 INFO L471 AbstractCegarLoop]: Abstraction has 19576 states and 28023 transitions. [2024-10-11 03:51:36,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:36,247 INFO L276 IsEmpty]: Start isEmpty. Operand 19576 states and 28023 transitions. [2024-10-11 03:51:36,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-11 03:51:36,256 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:51:36,257 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 03:51:36,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 03:51:36,257 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:51:36,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:51:36,257 INFO L85 PathProgramCache]: Analyzing trace with hash -2086990711, now seen corresponding path program 1 times [2024-10-11 03:51:36,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:51:36,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215343328] [2024-10-11 03:51:36,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:51:36,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:51:36,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:51:36,505 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 03:51:36,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:51:36,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215343328] [2024-10-11 03:51:36,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215343328] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:51:36,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:51:36,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 03:51:36,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293800666] [2024-10-11 03:51:36,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:51:36,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 03:51:36,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:51:36,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 03:51:36,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:51:36,508 INFO L87 Difference]: Start difference. First operand 19576 states and 28023 transitions. Second operand has 9 states, 9 states have (on average 14.222222222222221) internal successors, (128), 9 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) [2024-10-11 03:51:37,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:51:37,198 INFO L93 Difference]: Finished difference Result 153608 states and 219999 transitions. [2024-10-11 03:51:37,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 03:51:37,199 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.222222222222221) internal successors, (128), 9 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 129 [2024-10-11 03:51:37,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:51:37,379 INFO L225 Difference]: With dead ends: 153608 [2024-10-11 03:51:37,379 INFO L226 Difference]: Without dead ends: 140294 [2024-10-11 03:51:37,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-11 03:51:37,401 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 2073 mSDsluCounter, 1651 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2073 SdHoareTripleChecker+Valid, 1941 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:51:37,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2073 Valid, 1941 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:51:37,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140294 states. [2024-10-11 03:51:38,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140294 to 36024. [2024-10-11 03:51:38,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36024 states, 36023 states have (on average 1.4272825694695055) internal successors, (51415), 36023 states have internal predecessors, (51415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:38,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36024 states to 36024 states and 51415 transitions. [2024-10-11 03:51:38,595 INFO L78 Accepts]: Start accepts. Automaton has 36024 states and 51415 transitions. Word has length 129 [2024-10-11 03:51:38,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:51:38,595 INFO L471 AbstractCegarLoop]: Abstraction has 36024 states and 51415 transitions. [2024-10-11 03:51:38,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.222222222222221) internal successors, (128), 9 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) [2024-10-11 03:51:38,595 INFO L276 IsEmpty]: Start isEmpty. Operand 36024 states and 51415 transitions. [2024-10-11 03:51:38,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-11 03:51:38,606 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:51:38,607 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 03:51:38,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 03:51:38,607 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:51:38,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:51:38,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1020070641, now seen corresponding path program 1 times [2024-10-11 03:51:38,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:51:38,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043697255] [2024-10-11 03:51:38,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:51:38,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:51:38,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:51:38,904 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 03:51:38,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:51:38,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043697255] [2024-10-11 03:51:38,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043697255] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:51:38,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:51:38,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 03:51:38,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803191029] [2024-10-11 03:51:38,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:51:38,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 03:51:38,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:51:38,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 03:51:38,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:51:38,907 INFO L87 Difference]: Start difference. First operand 36024 states and 51415 transitions. Second operand has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:39,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:51:39,553 INFO L93 Difference]: Finished difference Result 173128 states and 247839 transitions. [2024-10-11 03:51:39,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 03:51:39,554 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 0 states have call successors, (0), 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 129 [2024-10-11 03:51:39,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:51:39,762 INFO L225 Difference]: With dead ends: 173128 [2024-10-11 03:51:39,762 INFO L226 Difference]: Without dead ends: 153606 [2024-10-11 03:51:39,822 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-11 03:51:39,823 INFO L432 NwaCegarLoop]: 289 mSDtfsCounter, 2072 mSDsluCounter, 1611 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2072 SdHoareTripleChecker+Valid, 1900 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:51:39,823 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2072 Valid, 1900 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:51:39,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153606 states. [2024-10-11 03:51:41,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153606 to 62200. [2024-10-11 03:51:41,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62200 states, 62199 states have (on average 1.4244441228958664) internal successors, (88599), 62199 states have internal predecessors, (88599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:41,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62200 states to 62200 states and 88599 transitions. [2024-10-11 03:51:41,440 INFO L78 Accepts]: Start accepts. Automaton has 62200 states and 88599 transitions. Word has length 129 [2024-10-11 03:51:41,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:51:41,440 INFO L471 AbstractCegarLoop]: Abstraction has 62200 states and 88599 transitions. [2024-10-11 03:51:41,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:41,441 INFO L276 IsEmpty]: Start isEmpty. Operand 62200 states and 88599 transitions. [2024-10-11 03:51:41,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-11 03:51:41,452 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:51:41,452 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 03:51:41,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 03:51:41,452 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:51:41,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:51:41,453 INFO L85 PathProgramCache]: Analyzing trace with hash 78062119, now seen corresponding path program 1 times [2024-10-11 03:51:41,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:51:41,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395904487] [2024-10-11 03:51:41,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:51:41,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:51:41,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:51:41,677 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-11 03:51:41,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:51:41,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395904487] [2024-10-11 03:51:41,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395904487] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:51:41,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:51:41,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 03:51:41,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791472083] [2024-10-11 03:51:41,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:51:41,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 03:51:41,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:51:41,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 03:51:41,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:51:41,679 INFO L87 Difference]: Start difference. First operand 62200 states and 88599 transitions. Second operand has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 9 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) [2024-10-11 03:51:42,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:51:42,750 INFO L93 Difference]: Finished difference Result 192648 states and 275615 transitions. [2024-10-11 03:51:42,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 03:51:42,751 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 9 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 129 [2024-10-11 03:51:42,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:51:42,988 INFO L225 Difference]: With dead ends: 192648 [2024-10-11 03:51:42,988 INFO L226 Difference]: Without dead ends: 173126 [2024-10-11 03:51:43,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-11 03:51:43,023 INFO L432 NwaCegarLoop]: 287 mSDtfsCounter, 2170 mSDsluCounter, 1769 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2170 SdHoareTripleChecker+Valid, 2056 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:51:43,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2170 Valid, 2056 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:51:43,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173126 states. [2024-10-11 03:51:44,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173126 to 81720. [2024-10-11 03:51:44,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81720 states, 81719 states have (on average 1.4240874215298767) internal successors, (116375), 81719 states have internal predecessors, (116375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:44,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81720 states to 81720 states and 116375 transitions. [2024-10-11 03:51:44,813 INFO L78 Accepts]: Start accepts. Automaton has 81720 states and 116375 transitions. Word has length 129 [2024-10-11 03:51:44,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:51:44,814 INFO L471 AbstractCegarLoop]: Abstraction has 81720 states and 116375 transitions. [2024-10-11 03:51:44,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 9 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) [2024-10-11 03:51:44,814 INFO L276 IsEmpty]: Start isEmpty. Operand 81720 states and 116375 transitions. [2024-10-11 03:51:44,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-11 03:51:44,828 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:51:44,828 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 03:51:44,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-11 03:51:44,828 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:51:44,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:51:44,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1075883987, now seen corresponding path program 1 times [2024-10-11 03:51:44,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:51:44,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236344704] [2024-10-11 03:51:44,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:51:44,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:51:44,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:51:45,510 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-11 03:51:45,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:51:45,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236344704] [2024-10-11 03:51:45,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236344704] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:51:45,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:51:45,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 03:51:45,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854395333] [2024-10-11 03:51:45,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:51:45,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 03:51:45,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:51:45,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 03:51:45,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:51:45,512 INFO L87 Difference]: Start difference. First operand 81720 states and 116375 transitions. Second operand has 9 states, 9 states have (on average 13.555555555555555) internal successors, (122), 9 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) [2024-10-11 03:51:46,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:51:46,248 INFO L93 Difference]: Finished difference Result 212168 states and 303391 transitions. [2024-10-11 03:51:46,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 03:51:46,248 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.555555555555555) internal successors, (122), 9 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 129 [2024-10-11 03:51:46,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:51:46,489 INFO L225 Difference]: With dead ends: 212168 [2024-10-11 03:51:46,489 INFO L226 Difference]: Without dead ends: 192646 [2024-10-11 03:51:46,560 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-11 03:51:46,561 INFO L432 NwaCegarLoop]: 287 mSDtfsCounter, 1999 mSDsluCounter, 1840 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1999 SdHoareTripleChecker+Valid, 2127 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:51:46,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1999 Valid, 2127 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:51:46,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192646 states. [2024-10-11 03:51:48,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192646 to 101240. [2024-10-11 03:51:48,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101240 states, 101239 states have (on average 1.4238682721085747) internal successors, (144151), 101239 states have internal predecessors, (144151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:48,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101240 states to 101240 states and 144151 transitions. [2024-10-11 03:51:48,742 INFO L78 Accepts]: Start accepts. Automaton has 101240 states and 144151 transitions. Word has length 129 [2024-10-11 03:51:48,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:51:48,742 INFO L471 AbstractCegarLoop]: Abstraction has 101240 states and 144151 transitions. [2024-10-11 03:51:48,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.555555555555555) internal successors, (122), 9 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) [2024-10-11 03:51:48,742 INFO L276 IsEmpty]: Start isEmpty. Operand 101240 states and 144151 transitions. [2024-10-11 03:51:48,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-11 03:51:48,753 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:51:48,754 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 03:51:48,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 03:51:48,754 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:51:48,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:51:48,755 INFO L85 PathProgramCache]: Analyzing trace with hash -779838559, now seen corresponding path program 1 times [2024-10-11 03:51:48,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:51:48,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059011147] [2024-10-11 03:51:48,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:51:48,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:51:48,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:51:49,000 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 03:51:49,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:51:49,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059011147] [2024-10-11 03:51:49,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059011147] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:51:49,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:51:49,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 03:51:49,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856868680] [2024-10-11 03:51:49,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:51:49,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 03:51:49,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:51:49,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 03:51:49,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:51:49,004 INFO L87 Difference]: Start difference. First operand 101240 states and 144151 transitions. Second operand has 9 states, 9 states have (on average 13.777777777777779) internal successors, (124), 9 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) [2024-10-11 03:51:50,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:51:50,386 INFO L93 Difference]: Finished difference Result 231688 states and 331167 transitions. [2024-10-11 03:51:50,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 03:51:50,386 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.777777777777779) internal successors, (124), 9 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 129 [2024-10-11 03:51:50,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:51:50,709 INFO L225 Difference]: With dead ends: 231688 [2024-10-11 03:51:50,709 INFO L226 Difference]: Without dead ends: 212166 [2024-10-11 03:51:50,752 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-11 03:51:50,753 INFO L432 NwaCegarLoop]: 287 mSDtfsCounter, 1746 mSDsluCounter, 1987 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1746 SdHoareTripleChecker+Valid, 2274 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:51:50,753 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1746 Valid, 2274 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:51:50,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212166 states. [2024-10-11 03:51:52,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212166 to 120760. [2024-10-11 03:51:52,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120760 states, 120759 states have (on average 1.4237199711822721) internal successors, (171927), 120759 states have internal predecessors, (171927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:53,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120760 states to 120760 states and 171927 transitions. [2024-10-11 03:51:53,590 INFO L78 Accepts]: Start accepts. Automaton has 120760 states and 171927 transitions. Word has length 129 [2024-10-11 03:51:53,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:51:53,594 INFO L471 AbstractCegarLoop]: Abstraction has 120760 states and 171927 transitions. [2024-10-11 03:51:53,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.777777777777779) internal successors, (124), 9 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) [2024-10-11 03:51:53,595 INFO L276 IsEmpty]: Start isEmpty. Operand 120760 states and 171927 transitions. [2024-10-11 03:51:53,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-11 03:51:53,630 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:51:53,635 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 03:51:53,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-11 03:51:53,636 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:51:53,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:51:53,638 INFO L85 PathProgramCache]: Analyzing trace with hash 648658075, now seen corresponding path program 1 times [2024-10-11 03:51:53,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:51:53,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630518678] [2024-10-11 03:51:53,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:51:53,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:51:53,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:51:53,879 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 03:51:53,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:51:53,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630518678] [2024-10-11 03:51:53,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630518678] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:51:53,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:51:53,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 03:51:53,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802618639] [2024-10-11 03:51:53,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:51:53,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 03:51:53,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:51:53,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 03:51:53,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:51:53,882 INFO L87 Difference]: Start difference. First operand 120760 states and 171927 transitions. Second operand has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 9 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) [2024-10-11 03:51:54,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:51:54,556 INFO L93 Difference]: Finished difference Result 251208 states and 358943 transitions. [2024-10-11 03:51:54,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 03:51:54,559 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 9 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 129 [2024-10-11 03:51:54,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:51:54,863 INFO L225 Difference]: With dead ends: 251208 [2024-10-11 03:51:54,863 INFO L226 Difference]: Without dead ends: 231686 [2024-10-11 03:51:54,952 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-11 03:51:54,953 INFO L432 NwaCegarLoop]: 287 mSDtfsCounter, 1730 mSDsluCounter, 2018 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1730 SdHoareTripleChecker+Valid, 2305 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:51:54,953 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1730 Valid, 2305 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:51:55,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231686 states. [2024-10-11 03:51:57,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231686 to 140280. [2024-10-11 03:51:57,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140280 states, 140279 states have (on average 1.4236129427783204) internal successors, (199703), 140279 states have internal predecessors, (199703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:57,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140280 states to 140280 states and 199703 transitions. [2024-10-11 03:51:57,969 INFO L78 Accepts]: Start accepts. Automaton has 140280 states and 199703 transitions. Word has length 129 [2024-10-11 03:51:57,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:51:57,970 INFO L471 AbstractCegarLoop]: Abstraction has 140280 states and 199703 transitions. [2024-10-11 03:51:57,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 9 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) [2024-10-11 03:51:57,970 INFO L276 IsEmpty]: Start isEmpty. Operand 140280 states and 199703 transitions. [2024-10-11 03:51:57,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-11 03:51:57,982 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:51:57,982 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 03:51:57,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-11 03:51:57,982 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:51:57,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:51:57,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1670871787, now seen corresponding path program 1 times [2024-10-11 03:51:57,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:51:57,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968230808] [2024-10-11 03:51:57,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:51:57,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:51:58,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:51:58,243 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 03:51:58,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:51:58,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968230808] [2024-10-11 03:51:58,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968230808] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:51:58,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:51:58,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 03:51:58,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78478697] [2024-10-11 03:51:58,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:51:58,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 03:51:58,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:51:58,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 03:51:58,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:51:58,246 INFO L87 Difference]: Start difference. First operand 140280 states and 199703 transitions. Second operand has 9 states, 9 states have (on average 14.0) internal successors, (126), 9 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:51:59,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:51:59,686 INFO L93 Difference]: Finished difference Result 270728 states and 386719 transitions. [2024-10-11 03:51:59,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 03:51:59,686 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.0) internal successors, (126), 9 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 129 [2024-10-11 03:51:59,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:52:00,066 INFO L225 Difference]: With dead ends: 270728 [2024-10-11 03:52:00,067 INFO L226 Difference]: Without dead ends: 251206 [2024-10-11 03:52:00,153 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-11 03:52:00,154 INFO L432 NwaCegarLoop]: 286 mSDtfsCounter, 1826 mSDsluCounter, 2029 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1826 SdHoareTripleChecker+Valid, 2315 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:52:00,154 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1826 Valid, 2315 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:52:00,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251206 states. [2024-10-11 03:52:02,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251206 to 159800. [2024-10-11 03:52:02,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159800 states, 159799 states have (on average 1.4235320621530798) internal successors, (227479), 159799 states have internal predecessors, (227479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:52:03,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159800 states to 159800 states and 227479 transitions. [2024-10-11 03:52:03,236 INFO L78 Accepts]: Start accepts. Automaton has 159800 states and 227479 transitions. Word has length 129 [2024-10-11 03:52:03,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:52:03,237 INFO L471 AbstractCegarLoop]: Abstraction has 159800 states and 227479 transitions. [2024-10-11 03:52:03,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.0) internal successors, (126), 9 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:52:03,237 INFO L276 IsEmpty]: Start isEmpty. Operand 159800 states and 227479 transitions. [2024-10-11 03:52:03,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-11 03:52:03,250 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:52:03,250 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 03:52:03,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-11 03:52:03,250 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:52:03,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:52:03,251 INFO L85 PathProgramCache]: Analyzing trace with hash 655202412, now seen corresponding path program 1 times [2024-10-11 03:52:03,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:52:03,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699803482] [2024-10-11 03:52:03,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:52:03,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:52:03,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:52:03,500 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 03:52:03,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:52:03,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699803482] [2024-10-11 03:52:03,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699803482] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:52:03,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1970292986] [2024-10-11 03:52:03,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:52:03,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:52:03,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:52:03,503 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:52:03,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 03:52:03,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:52:03,693 INFO L255 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-11 03:52:03,703 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:52:05,184 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:52:05,184 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:52:06,506 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:52:06,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1970292986] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:52:06,507 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:52:06,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 8, 8] total 18 [2024-10-11 03:52:06,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678043089] [2024-10-11 03:52:06,508 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:52:06,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-11 03:52:06,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:52:06,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-11 03:52:06,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2024-10-11 03:52:06,512 INFO L87 Difference]: Start difference. First operand 159800 states and 227479 transitions. Second operand has 18 states, 18 states have (on average 20.38888888888889) internal successors, (367), 18 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:52:12,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:52:12,006 INFO L93 Difference]: Finished difference Result 962602 states and 1371936 transitions. [2024-10-11 03:52:12,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-10-11 03:52:12,006 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 20.38888888888889) internal successors, (367), 18 states have internal predecessors, (367), 0 states have call successors, (0), 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 130 [2024-10-11 03:52:12,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:52:13,388 INFO L225 Difference]: With dead ends: 962602 [2024-10-11 03:52:13,388 INFO L226 Difference]: Without dead ends: 802856 [2024-10-11 03:52:13,559 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1173 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=807, Invalid=3353, Unknown=0, NotChecked=0, Total=4160 [2024-10-11 03:52:13,559 INFO L432 NwaCegarLoop]: 257 mSDtfsCounter, 3103 mSDsluCounter, 1874 mSDsCounter, 0 mSdLazyCounter, 2135 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3103 SdHoareTripleChecker+Valid, 2131 SdHoareTripleChecker+Invalid, 2152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:52:13,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3103 Valid, 2131 Invalid, 2152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2135 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-11 03:52:14,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802856 states.